Isolation By Dielectric Regions (epo) Patents (Class 257/E29.02)
  • Publication number: 20120161275
    Abstract: Bottom sides of two semiconductor substrates are brought together with at least one bonding material layer therebetween and bonded to form a bonded substrate. A cavity with two openings and a contiguous path therebetween is provided within the at least one bonding layer. At least one through substrate via and other metal interconnect structures are formed within the bonded substrate. The cavity is employed as a cooling channel through which a cooling fluid flows to cool the bonded semiconductor substrate during the operation of the semiconductor devices in the bonded substrate. Alternatively, a conductive cooling fin with two end portions and a contiguous path therebetween is formed within the at least one bonding layer. The two end portions of the conductive cooling fin are connected to heat sinks to cool the bonded semiconductor substrate during the operation of the semiconductor devices in the bonded substrate.
    Type: Application
    Filed: February 29, 2012
    Publication date: June 28, 2012
    Applicant: International Business Machines Corporation
    Inventors: Jeffrey P. Gambino, Anthony K. Stamper
  • Publication number: 20120161276
    Abstract: The present invention provides semiconductor devices and methods for fabricating the same, in which superior dielectric termination of drift regions is accomplished by a plurality of intersecting trenches with intermediate semiconductor islands. Thus, a deep trench arrangement can be achieved without being restricted by the overall width of the isolation structure.
    Type: Application
    Filed: May 22, 2009
    Publication date: June 28, 2012
    Inventors: Deb Kumar Pal, Alexander Hoelke, Pei Shan Chua, Gopalakrishnan Kulathu Sankar, Kia Yaw Kee, Yang Hao, Uta Kuniss
  • Publication number: 20120153427
    Abstract: A method includes providing a substrate with at least one semiconducting layer. The method also includes forming a plurality of isolation barriers within the at least one semiconducting layer, thereby forming a plurality of device islands. The method further includes inserting a plurality of electronic devices into a portion of the at least one semiconducting layer such that each electronic device is substantially isolated from each other electronic device by the device islands.
    Type: Application
    Filed: December 20, 2010
    Publication date: June 21, 2012
    Inventors: Cheng-Po Chen, Emad Andarawis Andarawis, Vinayak Tilak, Zachary Stum
  • Publication number: 20120153426
    Abstract: A method of bonding first and second microelectronic elements includes pressing together a first substrate containing active circuit elements therein with a second substrate, with a flowable dielectric material between confronting surfaces of the respective substrates, each of the first and second substrates having a coefficient of thermal expansion less than 10 parts per million/° C., at least one of the confronting surfaces having a plurality of channels extending from an edge of such surface, such that the dielectric material between planes defined by the confronting surfaces is at least substantially free of voids and has a thickness over one micron, and at least some of the dielectric material flows into at least some of the channels.
    Type: Application
    Filed: December 16, 2010
    Publication date: June 21, 2012
    Applicant: TESSERA RESEARCH LLC
    Inventors: Vage Oganesian, Belgacem Haba, Ilyas Mohammed, Piyush Savalia, Craig Mitchell
  • Publication number: 20120153431
    Abstract: Disclosed is an integrated circuit having at least one deep trench isolation structure and a deep trench capacitor. A method of forming the integrated circuit incorporates a single etch process to simultaneously form first trench(s) and a second trenches for the deep trench isolation structure(s) and a deep trench capacitor, respectively. Following formation of a buried capacitor plate adjacent to the lower portion of the second trench, the trenches are lined with a conformal insulator layer and filled with a conductive material. Thus, for the deep trench capacitor, the conformal insulator layer functions as the capacitor dielectric and the conductive material as a capacitor plate in addition to the buried capacitor plate. A shallow trench isolation (STI) structure formed in the substrate extending across the top of the first trench(es) encapsulates the conductive material therein, thereby creating the deep trench isolation structure(s).
    Type: Application
    Filed: February 28, 2012
    Publication date: June 21, 2012
    Applicant: International Business Machines Corporation
    Inventors: Brent A. Anderson, Andres Bryant, Herbert L. Ho, Edward J. Nowak
  • Patent number: 8198700
    Abstract: A semiconductor device structure includes a first type region and a second type region defined in a substrate, the first type region and second type region separated by one or more inter-well shallow trench isolation (STI) structures. At least one of the first type region and the second type region has one or more intra-well STI structures formed therein for isolating semiconductor devices formed within a same polarity well. The inter-well STI structures are formed at a substantially same depth with respect to the intra-well STI structures. A main well region is formed such that a bottom of the main well region is disposed above a bottom of the inter-well and intra-well STI features. One or more deep well regions couple the main well regions otherwise isolated by the intra-well STI structures, wherein the deep well regions are spaced away from the inter-well STI structures.
    Type: Grant
    Filed: January 21, 2010
    Date of Patent: June 12, 2012
    Assignees: International Business Machines Corporation, Kabushiki Kaisha Toshiba, Freescale Semiconductors Inc.
    Inventors: Charles W. Koburger, III, Peter Zeitzoff, Mariko Takayanagi
  • Patent number: 8198171
    Abstract: A method for fabricating a semiconductor device includes: providing a substrate; forming a plurality of trenches by etching the substrate; forming a first isolation layer by filling the plurality of the trenches with a first insulation layer; recessing the first insulation layer filling a first group of the plurality of the trenches to a predetermined depth; forming a liner layer over the first group of the trenches with the first insulation layer recessed to the predetermined depth; and forming a second isolation layer by filling the first group of the trenches, where the liner layer is formed, with a second insulation layer.
    Type: Grant
    Filed: December 17, 2009
    Date of Patent: June 12, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventor: Hyung-Hwan Kim
  • Publication number: 20120139052
    Abstract: A formation method of an element isolation film according to which a high-voltage transistor with an excellent characteristic can be formed is provided. On a substrate, a gate oxide film is previously formed. A CMP stopper film is formed thereon, and thereafter, a gate oxide film and a CMP stopper film are etched. The semiconductor substrate is etched to form a trench. Further, before the trench is filled with a field insulating film, a liner insulating film is formed at a trench interior wall, and a concave portion at the side surface of the gate oxide film under the CMP stopper film is filled with the liner insulating film. In this manner, formation of void in the element isolation film laterally positioned with respect to the gate oxide film can be prevented.
    Type: Application
    Filed: August 29, 2011
    Publication date: June 7, 2012
    Inventors: Masayuki Tajiri, Takayoshi Hashimoto, Hisashi Yonemoto, Toyohiro Harazono
  • Publication number: 20120133017
    Abstract: Methods of forming metal oxide structures and methods of forming metal oxide patterns on a substrate using a block copolymer system formulated for self-assembly. A block copolymer at least within a trench in the substrate and including at least one soluble block and at least one insoluble block may be annealed to form a self-assembled pattern including a plurality of repeating units of the at least one soluble block laterally aligned with the trench and positioned within a matrix of the at least one insoluble block. The self-assembled pattern may be exposed to a metal oxide precursor that impregnates the at least one soluble block. The metal oxide precursor may be oxidized to form a metal oxide. The self-assembled pattern may be removed to form a pattern of metal oxide lines on the substrate surface. Semiconductor device structures are also described.
    Type: Application
    Filed: December 22, 2011
    Publication date: May 31, 2012
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Dan B. Millward, Timothy A. Quick, J. Neil Greeley
  • Publication number: 20120126245
    Abstract: The invention provides a STI structure and method for forming the same. The STI structure includes a semiconductor substrate; a first trench embedded in the semiconductor substrate and filled up with a first dielectric layer; and a second trench formed on a top surface of the semiconductor substrate and interconnected with the first trench, wherein the second trench is filled up with a second dielectric layer, a top surface of the second dielectric layer is flushed with that of the semiconductor substrate, and the second trench has a width smaller than that of the first trench. The invention reduces dimension of divots and improves performance of the semiconductor device.
    Type: Application
    Filed: January 27, 2011
    Publication date: May 24, 2012
    Inventors: Huicai Zhong, Qingqing Liang, Haizhou Yin
  • Publication number: 20120126360
    Abstract: There is provided a technique for improving the flatness at the surface of members embedded in a plurality of recesses without resulting in an increase in the time required for the manufacturing processes. According to this technique, the dummy patterns can be placed up to the area near the boundary BL between the element forming region DA and dummy region FA by placing the first dummy pattern DP1 of relatively wider area and the second dummy pattern DP2 of relatively small area in the dummy region FA. Thereby, the flatness of the surface of the silicon oxide film embedded within the isolation groove can be improved over the entire part of the dummy region FA. Moreover, an increase of the mask data can be controlled when the first dummy patterns DP1 occupy a relatively wide region among the dummy region FA.
    Type: Application
    Filed: January 31, 2012
    Publication date: May 24, 2012
    Inventors: Kenichi KURODA, Kozo Watanabe, Hirohiko Yamamoto
  • Publication number: 20120126294
    Abstract: A method of forming a semiconductor device having a substrate, an active region and an inactive region includes: forming a hardmask layer over the substrate; transferring a first pattern into the hardmask layer in the active region of the semiconductor device; forming one or more fills in the inactive region; forming a cut-away hole within, covering, or partially covering, the one or more fills to expose a portion of the hardmask layer, the exposed portion being within the one or more fills; and exposing the hardmask layer to an etchant to divide the first pattern into a second pattern including at least two separate elements.
    Type: Application
    Filed: November 18, 2010
    Publication date: May 24, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Martin Burkhardt, Matthew E. Colburn, Allen H. Gabor, Oleg Gluschenkov, Scott D. Halle, Howard S. Landis, Helen Wang
  • Publication number: 20120112280
    Abstract: A structure, a FET, a method of making the structure and of making the FET. The structure including: a silicon layer on a buried oxide (BOX) layer of a silicon-on-insulator substrate; a trench in the silicon layer extending from a top surface of the silicon layer into the silicon layer, the trench not extending to the BOX layer, a doped region in the silicon layer between and abutting the BOX layer and a bottom of the trench, the first doped region doped to a first dopant concentration; a first epitaxial layer, doped to a second dopant concentration, in a bottom of the trench; a second epitaxial layer, doped to a third dopant concentration, on the first epitaxial layer in the trench; and wherein the third dopant concentration is greater than the first and second dopant concentrations and the first dopant concentration is greater than the second dopant concentration.
    Type: Application
    Filed: November 10, 2010
    Publication date: May 10, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Jeffrey B. Johnson, Shreesh Narasimha, Hasan M. Nayfeh, Viorel Ontalus, Robert R. Robison
  • Publication number: 20120112310
    Abstract: A method of forming diffusion sidewalls in a semiconductor structure and a semiconductor structure having diffusion sidewalls includes etching a trench into a semiconductor substrate to form first and second active regions, lining each trench with an oxide liner along exposed sidewalls of an active silicon region (RX) of the first and second active regions, removing the oxide liner formed along the exposed sidewalls of the RX region of one of the first and second active regions, forming diffusion sidewalls by epitaxially growing in-situ doped material within the exposed sidewalls of the RX region of the one of the first and second active regions, and forming an isolation region within the trench between the first and second active regions to electrically isolate the first and second active regions from each other.
    Type: Application
    Filed: January 16, 2012
    Publication date: May 10, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Dechao Guo, Shu-Jen Han, Chung-Hsun Lin, Ning Su
  • Publication number: 20120112268
    Abstract: The present invention provides a termination structure of a power semiconductor device and a manufacturing method thereof. The power semiconductor device has an active region and a termination region. The termination region surrounds the active region, and the termination structure is disposed in the termination region. The termination structure includes a semiconductor substrate, an insulating layer and a metal layer. The semiconductor substrate has a trench disposed in the termination region. The insulating layer is partially filled into the trench and covers the semiconductor substrate, and a top surface of the insulating layer has a hole. The metal layer is disposed on the insulating layer, and is filled into the hole.
    Type: Application
    Filed: March 1, 2011
    Publication date: May 10, 2012
    Inventors: Sung-Shan Tai, Hung-Sheng Tsai
  • Publication number: 20120104540
    Abstract: An isolation trench in a substrate of a semiconductor device includes a first shallow portion, a transition region, and a second deeper portion. The isolation trench contains a dielectric filler. The isolation trench is formed by first forming a first shallow portion of the isolation trench, forming polysilicon sidewalls on the first shallow portion, and then etching the second deeper portion.
    Type: Application
    Filed: October 28, 2011
    Publication date: May 3, 2012
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Manoj Mehrotra
  • Publication number: 20120104539
    Abstract: An isolation trench in a substrate of a semiconductor device includes a first shallow portion with a dielectric sidewall and a second deeper portion without a dielectric sidewall. The isolation trench is formed by forming a first shallow portion of the trench, forming dielectric sidewalls on the first shallow portion, and then etching the substrate below the first shallow portion to form the second deeper portion. Shallow isolation trenches may be formed simultaneously with the etching of the second deeper portion.
    Type: Application
    Filed: October 28, 2011
    Publication date: May 3, 2012
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventor: Manoj Mehrotra
  • Publication number: 20120104564
    Abstract: A semiconductor device and a method of fabricating the same are provided. The semiconductor device includes a semiconductor substrate in which a multi-depth trench is formed, the multi-depth trench including a shallow trench and a deep trench arranged below the shallow trench, a first dielectric material formed in partial area of the multi-depth trench, the first dielectric material including a slope in the shallow trench that extends upward from a corner where a bottom plane of the shallow trench and a sidewall of the deep trench meets, the slope being inclined with respect to the bottom plane of the shallow trench, and a second dielectric material formed in areas of the multi-depth trench in which the first dielectric material is absent.
    Type: Application
    Filed: July 29, 2011
    Publication date: May 3, 2012
    Applicant: MAGNACHIP SEMICONDUCTOR, LTD.
    Inventors: Yong-sik Won, Sang-uk Lee
  • Publication number: 20120098085
    Abstract: A semiconductor device, and method of manufacturing the device, having a p type diffusion layer; a V-groove including a bottom surface parallel to the rear surface and exposing the p type diffusion layer and a tapered side surface rising from the bottom surface; a p type semiconductor layer on the rear surface surrounded by the tapered side surface of the V-groove; and a p type isolation layer formed on the side surface and electrically connecting the p type diffusion layer on the front surface and the p type semiconductor layer on the rear surface. The V-groove has a chamfered configuration around the intersection between a corner part of the side surface and the bottom surface of the V-groove. An object is to prevent performance degradation due to stress concentration at the corner part of a recessed part caused by thermal history in soldering.
    Type: Application
    Filed: October 19, 2011
    Publication date: April 26, 2012
    Applicant: FUJI ELECTRIC CO., LTD.
    Inventors: Haruo NAKAZAWA, Takahito Harada, Fumio Shigeta, Kyohei Fukuda
  • Publication number: 20120098088
    Abstract: A semiconductor device includes a substrate and an isolation structure, which includes a trench in the substrate, a lower filling layer at the bottom of the trench, and an upper filling layer on the lower filling layer, wherein the lower filling layer is denser than the upper filling layer, and the lower filling layer contains chlorine. The method for forming an isolation structure includes the steps of forming a trench in a substrate wherein the trench comprises side surfaces and a bottom surface, forming a nitride liner on the side surfaces of the trench, growing an epitaxial silicon layer from to the bottom surface of the trench, oxidizing the epitaxial silicon layer to form a lower filling layer in the lower portion of the trench, and filling a portion of the trench above the lower filling layer with dielectric material.
    Type: Application
    Filed: October 21, 2010
    Publication date: April 26, 2012
    Applicant: NANYA TECHNOLOGY CORP.
    Inventors: Jyun Huan CHEN, Yi Jung CHEN
  • Publication number: 20120098084
    Abstract: A semiconductor component with straight insulation trenches formed in a semiconductor material providing semiconductor areas laterally insulated from each other. Each insulation trench has a uniform width along its longitudinal direction represented by a central line. The semiconductor component has an intersecting area into which at least three of the straight insulation trenches lead. A center of the intersecting area is defined as a point of intersection of the continuations of the center lines. A central semiconductor area disposed in the intersecting area is connected with one of the semiconductor areas and contains the center of the intersecting area.
    Type: Application
    Filed: June 19, 2009
    Publication date: April 26, 2012
    Inventors: Ralf Lerner, Uwe Eckoldt
  • Patent number: 8164155
    Abstract: A method for manufacturing a semiconductor device includes forming an N-well and a P-well formed in a semiconductor substrate. An isolation layer may be formed in the semiconductor substrate. At least one dummy active pattern may be formed in a boundary area between the N-well and the P-well. A salicide blocking layer may be over the upper surface of the at least one dummy active pattern. A non-salicide region may be formed over the upper surface of the at least one dummy active pattern by carrying out a salicide process over the semiconductor substrate provided with the salicide blocking layer.
    Type: Grant
    Filed: August 5, 2009
    Date of Patent: April 24, 2012
    Assignee: Dongbu HiTek Co., Ltd.
    Inventor: Myung-Il Kang
  • Publication number: 20120091455
    Abstract: A pad structure in a semiconductor wafer for wafer testing is described. The pad structure includes at least two metal pads connected there-between by a plurality of conductive vias in one or more insulation layers. A plurality of contact bars in contact with the bottom-most metal pad extends substantially vertically from the bottom-most metal pad into the substrate. An isolation structure substantially surrounds the plurality of contact bars to isolate the pad structure.
    Type: Application
    Filed: January 5, 2011
    Publication date: April 19, 2012
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Ying-Ju CHEN, Hsien-Wei CHEN, Hao-Yi TSAI, Mirng-Ji LII
  • Patent number: 8159029
    Abstract: A semiconductor device includes a semiconductor substrate, a source region and a drain region formed in the substrate, a gate structure formed on the substrate disposed between the source and drain regions, and a first isolation structure formed in the substrate between the gate structure and the drain region, the first isolation structure including projections that are located proximate to an edge of the drain region. Each projection includes a width measured in a first direction along the edge of the drain region and a length measured in a second direction perpendicular to the first direction, and adjacent projections are spaced a distance from each other.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: April 17, 2012
    Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Ru-Yi Su, Puo-Yu Chiang, Jeng Gong, Tsung-Yi Huang, Chun-Lin Tsai, Chien-Chih Chou
  • Publication number: 20120086100
    Abstract: CMOS structures with a replacement substrate and methods of manufacture are disclosed herein. The method includes forming a device on a temporary substrate. The method further includes removing the temporary substrate. The method further includes bonding a permanent electrically insulative substrate to the device with a bonding structure.
    Type: Application
    Filed: October 6, 2010
    Publication date: April 12, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Paul S. ANDRY, Edmund J. SPROGIS, Cornelia K. TSANG
  • Publication number: 20120086077
    Abstract: An FET structure on a semiconductor substrate which includes forming recesses for a source and a drain of the gate structure on a semiconductor substrate, halo implanting regions through the bottom of the source and drain recesses, the halo implanted regions being underneath the gate stack, implanting junction butting at the bottom of the source and drain recesses, and filling the source and drain recesses with a doped epitaxial material. In exemplary embodiments, the semiconductor substrate is a semiconductor on insulator substrate including a semiconductor layer on a buried oxide layer. In exemplary embodiments, the junction butting and halo implanted regions are in contact with the buried oxide layer. In other exemplary embodiments, there is no junction butting. In exemplary embodiments, halo implants implanted to a lower part of the FET body underneath the gate structure provide higher doping level in lower part of the FET body to reduce body resistance, without interfering with FET threshold voltage.
    Type: Application
    Filed: October 7, 2010
    Publication date: April 12, 2012
    Applicant: International Business Machines Corporation
    Inventors: DAVID M FRIED, Jeffrey B. Johnson, Kevin McStay, Paul C. Parries, Chengwen Pei, Gan Wang, Geng Wang, Yanli Zhang
  • Patent number: 8154102
    Abstract: A semiconductor device includes groove-like regions that are formed between two adjacent bit lines among a plurality of bit lines each having upper and side surfaces covered with a cap insulating film and a side-wall insulating film, respectively, a SiON film that contains more O (oxygen) than N (nitrogen) and continuously covers inner surfaces of the groove-like regions, and a silicon dioxide film formed by reforming polysilazane and filled in the groove-like regions with the SiON film interposed therebetween.
    Type: Grant
    Filed: December 16, 2009
    Date of Patent: April 10, 2012
    Assignee: Elpida Memory, Inc.
    Inventors: Yoh Matsuda, Kyoko Miyata
  • Patent number: 8148788
    Abstract: The invention is directed to reduction of a manufacturing cost and enhancement of a breakdown voltage of a PN junction portion abutting on a guard ring. An N? type semiconductor layer is formed on a front surface of a semiconductor substrate, and a P type semiconductor layer is formed thereon. An insulation film is formed on the P type semiconductor layer. Then, a plurality of grooves, i.e., a first groove, a second groove and a third groove are formed from the insulation film to the middle of the N? type semiconductor layer in the thickness direction thereof. The plurality of grooves is formed so that one of the two grooves next to each other among these, that is closer to an electronic device, i.e., to an anode electrode, is formed shallower than the other located on the outside of the one. Then, an insulating material is deposited in the first groove, the second groove and the third groove. The lamination body of the semiconductor substrate and the layers laminated thereon is then diced along dicing lines.
    Type: Grant
    Filed: August 10, 2009
    Date of Patent: April 3, 2012
    Assignees: SANYO Semiconductor Co., Ltd., SANYO Semiconductor Manufacturing Co., Ltd., Semiconductor Components Industries, LLC
    Inventors: Akira Suzuki, Naofumi Tsuchiya, Koujiro Kameyama
  • Publication number: 20120074519
    Abstract: An improved crack stop structure (and method of forming) is provided within a die seal ring of an integrated circuit die to increase crack resistance during the dicing of a semiconductor wafer. The crack stop structure includes a stack layer (of alternating insulating and conductive layers) and an anchor system extending from the stack layer to a predetermined point below the surface of the substrate. A crack stop trench is formed in the substrate and filled with material having good crack resistance to anchor the stack layer to the substrate.
    Type: Application
    Filed: September 26, 2011
    Publication date: March 29, 2012
    Applicant: Chartered Semiconductor Manufacturing, Ltd.
    Inventors: Alfred Yeo, Kai Chong Chan
  • Publication number: 20120056263
    Abstract: A semiconductor device includes a device isolation pattern in which a polysilicon layer pattern doped with oxygen, carbon or nitrogen is interposed between an inner wall of a trench and a nitride liner. The semiconductor device includes a semiconductor substrate including a trench, a polysilicon layer pattern on a surface of the trench, a nitride layer pattern on the polysilicon layer pattern, and an insulation layer pattern on the nitride layer pattern and filling the trench. The polysilicon layer pattern may be doped with oxygen, carbon and/or nitrogen. Related manufacturing methods are also disclosed.
    Type: Application
    Filed: September 6, 2011
    Publication date: March 8, 2012
    Inventors: Dong-kak Lee, Hee-don Hwang
  • Patent number: 8129253
    Abstract: Disclosed are methods for providing wafer parasitic current control to a semiconductor wafer (1500) having a substrate (1520), at least one active layer (1565) and a surface layer (1510), and electrical contacts (1515) formed on said surface layer (1510). Current control can be achieved with the formation of trenches (1525) around electrical contacts, where electrical contacts and associated layers define an electronic device. Insulating implants (1530) can be placed into trenches (1525) and/or sacrificial layers (1540) can be formed between electronic contacts (1515). Trenches control current by promoting current flow within active (e.g., conductive) regions (1560) and impeding current flow through inactive (e.g., nonconductive) regions (1550). Methods of and systems for wafer level burn-in (WLBI) of semiconductor devices are also disclosed. Current control at the wafer level is important when using WLBI methods and systems.
    Type: Grant
    Filed: August 12, 2002
    Date of Patent: March 6, 2012
    Assignee: Finisar Corporation
    Inventors: Michael J. Haji-Sheikh, James R. Biard, James K. Guenter, Bobby M. Hawkins
  • Publication number: 20120049318
    Abstract: To provide, in a semiconductor device formed on an SOI substrate and having a semiconductor layer of the SOI substrate surrounded, at the periphery of the element region thereof, with element isolation, a technology capable of preventing reliability deterioration attributed to the element isolation. Appearance of a hollow, which is formed upon filling of a deep trench with an insulating film, from the upper surface of the insulating film can be prevented by setting the trench width of the upper portion of the deep trench configuring trench isolation at less than 1.2 ?m. Reduction in the breakdown voltage between adjacent element regions which may presumably occur due to a decrease in the trench width of the upper portion of the deep trench can be prevented by forming, on the upper portion of the deep trench, an LOCOS insulating film coupled to the insulating film filled in the deep trench.
    Type: Application
    Filed: August 11, 2011
    Publication date: March 1, 2012
    Inventors: Tatsuya Kawamata, Atsushi Tachigami, Kazuya Horie, Tatsuya Shiromoto, Tetsuya Nitta, Hironori Shimizu
  • Publication number: 20120049269
    Abstract: A method of forming an isolation structure, comprising: (a) providing a base having a recess; (b) forming a stop layer on the base and in the recess; (c) forming a dielectric material on the stop layer so as to allow the rest of the recess to be filled with the dielectric material; (d) removing the dielectric material over the base by performing a chemical mechanical polishing (CMP) process until a part of the stop layer is exposed so as to form a dielectric layer in the recess; and (e) removing a part of the stop layer, wherein the another part of the stop layer and the dielectric layer filled in the recess constitute the isolation structure.
    Type: Application
    Filed: November 8, 2011
    Publication date: March 1, 2012
    Applicant: Macronix International Co., Ltd.
    Inventors: Ming-Da Cheng, Chin-Tsan Yeh, Tuung Luoh, Chin-Ta Su, Ta-Hung Yang, Kuang-Chao Chen
  • Patent number: 8125044
    Abstract: In various embodiments, semiconductor structures and methods to manufacture these structures are disclosed. In one embodiment, a method includes forming a portion of the unidirectional transistor and a portion of a bidirectional transistor in or over a semiconductor material simultaneously. Other embodiments are described and claimed.
    Type: Grant
    Filed: October 21, 2008
    Date of Patent: February 28, 2012
    Assignee: HVVi Semiconductors, Inc.
    Inventor: Bishnu P. Gogoi
  • Publication number: 20120043641
    Abstract: Methods and structures for semiconductor devices with STI regions in SOI substrates is provided. A semiconductor structure comprises an SOI epitaxy island formed over a substrate. The structure further comprises an STI structure surrounding the SOI island. The STI structure comprises a second epitaxial layer on the substrate, and a second dielectric layer on the second epitaxial layer. A semiconductor fabrication method comprises forming a dielectric layer over a substrate and surrounding a device fabrication region in the substrate with an isolation trench extending through the dielectric layer. The method also includes filling the isolation trench with a first epitaxial layer and forming a second epitaxial layer over the device fabrication region and over the first epitaxial layer. Then a portion of the first epitaxial layer is replaced with an isolation dielectric, and then a device such as a transistor is formed second epitaxial layer within the device fabrication region.
    Type: Application
    Filed: October 31, 2011
    Publication date: February 23, 2012
    Applicant: Taiwan Semiconductor Manufacturing Company, Ltd.
    Inventors: Ming-Hua Yu, Tze-Liang Lee, Pang-Yen Tsai
  • Publication number: 20120043640
    Abstract: There is disclosed a method for producing a highly cross-linked polypropylene material by plasma polymerisation of a carbon containing gas, not specifically propylene, exhibiting low relative permittivity, high thermal stability and enhanced mechanical properties, said method and material being suitable for application not limited to interlayer dielectric deposition in microchip fabrication.
    Type: Application
    Filed: April 16, 2010
    Publication date: February 23, 2012
    Inventors: Sembukuttiarachilage Ravi Pradip Silva, José Virgilio Anguita Rodriguez Estefania
  • Publication number: 20120043639
    Abstract: A fabricating method and structure of a submount are provided. The submount includes a semiconductor substrate, a first electrode, a second electrode and a first insulating adhesive member. The fabricating method of the submount includes the following steps. A semiconductor substrate is provided. An isolating groove is formed on a first surface of the semiconductor substrate, thereby defining a first region and a second region. A first electrode is formed on the first surface in the first region and a second electrode is formed on the first surface in the second region. A first insulating adhesive member is filled in the isolating groove. The semiconductor substrate is thinned from the second surface so as to expose the first insulating adhesive member from the second surface, thereby insulating the first region of the semiconductor substrate from the second region of the semiconductor substrate.
    Type: Application
    Filed: August 19, 2010
    Publication date: February 23, 2012
    Applicant: MOS Art Pack Corporation
    Inventor: Taung-Yu LI
  • Publication number: 20120038023
    Abstract: Electronic elements having an active device region and integrated passive device (IPD) region on a common substrate preferably include a composite dielectric region in the IPD region underlying the IPD to reduce electro-magnetic (E-M) coupling to the substrate. Mechanical stress created by plain dielectric regions and its deleterious affect on performance, manufacturing yield and occupied area may be avoided by providing electrically isolated inclusions in the composite dielectric region of a material having a thermal expansion coefficient (TEC) less than that of the dielectric material in the composite dielectric region. For silicon substrates, non-single crystal silicon is suitable for the inclusions and silicon oxide for the dielectric material. The inclusions preferably have a blade-like shape separated by and enclosed within the dielectric material.
    Type: Application
    Filed: October 20, 2011
    Publication date: February 16, 2012
    Applicant: FREESCALE SEMICONDUCTOR, INC.
    Inventors: Xiaowei Ren, Wayne R. Burger, Colin Kerr, Mark A. Bennett
  • Publication number: 20120038021
    Abstract: Methods and apparatuses for alignment are disclosed. An exemplary method includes providing a substrate having a device region and an alignment region; forming a first material layer over the substrate; forming a device feature and a dummy feature in the first material layer, wherein the device feature is formed in the device region and the dummy feature is formed in the alignment region; forming a second material layer over the first material layer; and forming an alignment feature in the second material layer, the alignment feature being disposed over the dummy feature in the alignment region.
    Type: Application
    Filed: August 11, 2010
    Publication date: February 16, 2012
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Meng-Wei Chen, Chi-Chuang Lee, Chung-Hsien Lin
  • Patent number: 8115254
    Abstract: A stack pad layers including a first pad oxide layer, a pad nitride layer, and a second pad oxide layer are formed on a semiconductor-on-insulator (SOI) substrate. A deep trench extending below a top surface or a bottom surface of a buried insulator layer of the SOI substrate and enclosing at least one top semiconductor region is formed by lithographic methods and etching. A stress-generating insulator material is deposited in the deep trench and recessed below a top surface of the SOI substrate to form a stress-generating buried insulator plug in the deep trench. A silicon oxide material is deposited in the deep trench, planarized, and recessed. The stack of pad layer is removed to expose substantially coplanar top surfaces of the top semiconductor layer and of silicon oxide plugs. The stress-generating buried insulator plug encloses, and generates a stress to, the at least one top semiconductor region.
    Type: Grant
    Filed: September 25, 2007
    Date of Patent: February 14, 2012
    Assignee: International Business Machines Corporation
    Inventors: Huilong Zhu, Brian J. Greene, Dureseti Chidambarrao, Gregory G. Freeman
  • Patent number: 8115271
    Abstract: A method of forming an integrated circuit structure includes providing a semiconductor substrate; and forming a first and a second MOS device. The first MOS device includes a first active region in the semiconductor substrate; and a first gate over the first active region. The second MOS device includes a second active region in the semiconductor substrate; and a second gate over the second active region. The method further include forming a dielectric region between the first and the second active regions, wherein the dielectric region has an inherent stress; and implanting the dielectric region to form a stress-released region in the dielectric region, wherein source and drain regions of the first and the second MOS devices are not implanted during the step of implanting.
    Type: Grant
    Filed: June 7, 2011
    Date of Patent: February 14, 2012
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Harry Chuang, Kong-Beng Thei, Mong-Song Liang
  • Patent number: 8115279
    Abstract: Semiconductor devices and methods of manufacture thereof are disclosed. In a preferred embodiment, a semiconductor device includes a workpiece having a buried layer disposed beneath a top portion of the workpiece. An isolation ring structure is disposed within the top portion of the workpiece extending completely through at least a portion of the buried layer, the isolation ring structure comprising a ring having an interior region. A diffusion confining structure is disposed within the interior region of the isolation ring structure. A conductive region is disposed within the top portion of the workpiece within a portion of the interior of the isolation ring structure, the conductive region comprising at least one dopant element implanted and diffused into the top portion of the workpiece. The diffusion confining structure defines at least one edge of the conductive region, and the conductive region is coupled to the buried layer.
    Type: Grant
    Filed: April 28, 2010
    Date of Patent: February 14, 2012
    Assignee: Infineon Technologies AG
    Inventors: Armin Tilke, Cajetan Wagner, Lincoln O'Riain
  • Publication number: 20120032263
    Abstract: A semiconductor device has a planarizing layer that is made of an inorganic film, and has a recessed portion formed in a region thereof in which a conductive film is disposed. A first contact hole penetrating through at least an interlayer insulating film is formed on a first wiring layer, while a second contact hole penetrating through at least the interlayer insulating film is formed on the conductive film so as to run through the inside of the recessed portion.
    Type: Application
    Filed: November 25, 2009
    Publication date: February 9, 2012
    Applicant: SHARP KABUSHIKI KAISHA
    Inventors: Makoto Nakazawa, Mitsunobu Miyamoto
  • Publication number: 20120025353
    Abstract: A silicon-on-insulator or bonded wafer includes an upper portion having a trapezoid shape in cross-section and a lower portion having an outer peripheral edge having a curved shape.
    Type: Application
    Filed: July 30, 2010
    Publication date: February 2, 2012
    Applicant: MEMC ELECTRONIC MATERIALS, INC.
    Inventors: Guoqiang David Zhang, Roland Vandamme
  • Publication number: 20120018840
    Abstract: Disclosed are an element isolation structure of a semiconductor device and a method for forming the same, the method including preparing a semiconductor substrate having an inactive region and an active region defined thereon, forming a first hard mask on the semiconductor substrate, exposing the inactive region of the semiconductor substrate by patterning the first hard mask, forming a second hard mask on the entire surface of the semiconductor substrate including the first hard mask, forming a deep trench in the semiconductor substrate by patterning the second hard mask and the semiconductor substrate, removing the patterned second hard mask, forming a shallow trench overlapped with the deep trench by patterning the semiconductor substrate using the first hard mask as a mask, forming an insulation film on the entire surface of the substrate including the shallow trench and the deep trench, filling the shallow trench and the deep trench by forming an element isolation film on the insulation film, and forming
    Type: Application
    Filed: March 2, 2011
    Publication date: January 26, 2012
    Inventor: Yang-Beom Kang
  • Patent number: 8102030
    Abstract: A semiconductor device includes: a semiconductor substrate having a p-MOS region; an element isolation region formed in a surface portion of the semiconductor substrate and defining p-MOS active regions in the p-MOS region; a p-MOS gate electrode structure formed above the semiconductor substrate, traversing the p-MOS active region and defining a p-MOS channel region under the p-MOS gate electrode structure; a compressive stress film selectively formed above the p-MOS active region and covering the p-MOS gate electrode structure; and a stress released region selectively formed above the element isolation region in the p-MOS region and releasing stress in the compressive stress film, wherein a compressive stress along the gate length direction and a tensile stress along the gate width direction are exerted on the p-MOS channel region. The performance of the semiconductor device can be improved by controlling the stress separately for the active region and element isolation region.
    Type: Grant
    Filed: April 6, 2010
    Date of Patent: January 24, 2012
    Assignee: Fujitsu Semiconductor Limited
    Inventor: Shigeo Satoh
  • Patent number: 8102011
    Abstract: There is provided a semiconductor device including a field effect transistor. The field effect transistor includes a p-type low concentration region formed over a surface of a substrate, an n-type drain-side diffusion region and an n-type source-side diffusion region formed over a surface of the p-type low concentration region, an element isolation insulating layer, and another element isolation insulating layer. A p-type high concentration region, which has an impurity concentration higher than the impurity concentration of the p-type low concentration region, is formed below the n-type source-side diffusion region in the p-type low concentration region over a range at least from one end, which is opposite to the other end facing to the channel region, of the source-side diffusion region to one end, which is facing to the channel region, of the second element isolation insulating layer, when seen in a plan view.
    Type: Grant
    Filed: September 29, 2009
    Date of Patent: January 24, 2012
    Assignee: Renesas Electronics Corporation
    Inventor: Hiroki Fujii
  • Publication number: 20120012970
    Abstract: A semiconductor device includes an isolated p-type well, wherein the isolated p-type well is a first electrode of a capacitor device; a capacitor dielectric on the isolated p-type well; a p-type polysilicon electrode over the capacitor dielectric, wherein the p-type polysilicon electrode is a second electrode of the capacitor device; a first p-type contact region in the isolated p-type well, laterally extending from a first sidewall of the p-type polysilicon electrode; a second p-type contact region in the isolated p-type well, laterally extending from a second sidewall of the p-type polysilicon electrode, opposite the first sidewall of the p-type polysilicon electrode, wherein a portion of the isolated p-type well between the first and second p-type contact regions is under the p-type polysilicon electrode and the capacitor dielectric; and an n-type isolation region surrounding the isolated p-type well. This device may be conveniently coupled to a fringe capacitor.
    Type: Application
    Filed: July 14, 2010
    Publication date: January 19, 2012
    Inventors: HONGZHONG XU, ZHIHONG ZHANG, JIANG-KAI ZUO
  • Publication number: 20120012971
    Abstract: A structure and method is provided for fabricating isolated capacitors. The method includes simultaneously forming a plurality of deep trenches and one or more isolation trenches surrounding a group or array of the plurality of deep trenches through a SOI and doped poly layer, to an underlying insulator layer. The method further includes lining the plurality of deep trenches and one or more isolation trenches with an insulator material. The method further includes filling the plurality of deep trenches and one or more isolation trenches with a conductive material on the insulator material. The deep trenches form deep trench capacitors and the one or more isolation trenches form one or more isolation plates that isolate at least one group or array of the deep trench capacitors from another group or array of the deep trench capacitors.
    Type: Application
    Filed: July 19, 2010
    Publication date: January 19, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Oh-Jung KWON, Junedong LEE, Paul C. PARRIES, Dominic J. SCHEPIS
  • Publication number: 20120007208
    Abstract: Semiconductor devices and methods of manufacturing the same are provided. The semiconductor devices may include first and second active patterns. The second active patterns may protrude from the first active patterns. The semiconductor devices may also include a device isolation pattern between each of the first active patterns. The semiconductor devices may further include a sidewall mask on the first active patterns and the second active patterns. The semiconductor devices may additionally include a buried conductive pattern on the device isolation pattern.
    Type: Application
    Filed: July 6, 2011
    Publication date: January 12, 2012
    Inventors: Hyun-Gi Kim, Yongchul Oh, Yoosang Hwang, Cheolho Baek, Hui-Jung Kim, Young-Seung Cho