Of Capacitor (epo) Patents (Class 257/E21.008)
  • Publication number: 20120112259
    Abstract: An integrated circuit may include an element placed in an insulating region adjacent to a copper metallization level and including a barrier layer in contact with a metallization level. The element may be electrically connected to and spaced away from a copper line of the metallization level by way of an electrical link passing through the barrier layer and including an electrically conductive material different from copper in direct contact with the copper line.
    Type: Application
    Filed: November 9, 2011
    Publication date: May 10, 2012
    Applicant: STMicroelectronics (Crolles 2) SAS
    Inventors: Sébastien CREMER, Sébastien Gaillard
  • Publication number: 20120112315
    Abstract: Embodiments of the present invention provide a method and system for manufacturing copper-based capacitor on an integrated circuit. For example, the integrated circuit is associated with a channel length of less than 0.13 um. It is to be appreciated that, depending upon application, the present invention provides a more improved method for manufacturing capacitors and thus allow MIM capacitors to be manufactured at smaller dimensions. The method includes a step for providing a substrate. The method also includes a step for providing a layer of inter-metal dielectric overlaying the substrate. The method additionally includes a step for providing a bottom layer. The bottom layer includes a first portion and a second portion. The first portion can be characterized as electrically conductive. In addition, the method includes a step for providing a first insulating layer overlaying the bottom layer.
    Type: Application
    Filed: November 19, 2010
    Publication date: May 10, 2012
    Applicant: Semiconductor Manufacturing International (Shanghai) Corporation
    Inventors: ZHEN CHEN, Yung Feng Lin, Lin Huang
  • Publication number: 20120115300
    Abstract: In a method for manufacturing a semiconductor memory device, a three dimensional lower electrode including a titanium nitride film is formed on a semiconductor substrate, and a dielectric film is formed on the surface of the lower electrode. After a first upper electrode is formed at a temperature that the crystal of the dielectric film is not grown on the surface of the dielectric film, the first upper electrode and the dielectric film are heat-treated at a temperature that the crystal of the dielectric film is grown to convert at least a portion of the dielectric film into a crystalline state. Thereafter, a second upper electrode is formed on the surface of the first upper electrode.
    Type: Application
    Filed: October 27, 2011
    Publication date: May 10, 2012
    Applicant: Elpida Memory, Inc.
    Inventors: Toshiyuki Hirota, Takakazu Kiyomura
  • Publication number: 20120112317
    Abstract: In a method of forming a capacitor, a first mold layer pattern including a first insulating material may be formed on a substrate. The first mold layer pattern may have a trench. A supporting layer including a second insulating material may be formed in the trench. The second insulating material may have an etching selectivity with respect to the first insulating material. A second mold layer may be formed on the first mold layer pattern and the supporting layer pattern. A lower electrode may be formed through the second mold layer and the first mold layer pattern. The lower electrode may make contact with a sidewall of the supporting layer pattern. The first mold layer pattern and the second mold layer may be removed. A dielectric layer and an upper electrode may be formed on the lower electrode and the supporting layer pattern.
    Type: Application
    Filed: January 23, 2012
    Publication date: May 10, 2012
    Inventors: Dae-Hyuk Kang, Bo-Un Yoon, Kun-Tack Lee, Woo-Gwan Shim, Ji-Hoon Cha, Im-Soo Park, Hyo-San Lee, Young-Hoo Kim, Jung-Min Oh
  • Publication number: 20120113087
    Abstract: Pixel circuits (100, 300) and related methods are provided. In this regard, a representative pixel circuit includes: a data line (104, 304) operative to carry a data signal; a select line (106, 306) operative to carry a select signal; a first thin film transistor (TFT) (T1, T1A) conductively coupled to the data line and to the select line; and a second TFT (T2, T2A) capacitively coupled to the first TFT, the second TFT being operative to drive an emissive load responsive to the data signal and the select signal; wherein the data signal is provided to the second TFT through capacitive coupling.
    Type: Application
    Filed: June 18, 2009
    Publication date: May 10, 2012
    Inventors: Carl P. Taussig, Richard E. Elder, Warren Jackson, Hao Luo
  • Patent number: 8174132
    Abstract: An in-line capacitor, having a pair of inner conductor segments, each of the inner conductor segments having a mating surface. A dielectric spacer positioned between the mating surfaces, each of the mating surfaces having corresponding folds formed thereon.
    Type: Grant
    Filed: January 17, 2007
    Date of Patent: May 8, 2012
    Assignee: Andrew LLC
    Inventor: Kendrick Van Swearingen
  • Patent number: 8174116
    Abstract: Provided are a spacer capable of avoiding a poor connection due to the suction of solder when the clearance width between a soldered semiconductor device and a printed circuit board is made constant, and a manufacturing method for the spacer. The spacer includes an electrically insulating base member, and at least one solder guiding terminal. The base member has a bottom face, a top face and at least one side face, of which the bottom face and the top face are out of contact with each other whereas the side face contacts one or both the bottom face and the top face. The solder guiding terminal covers the bottom face partially, the top face partially, and the side face partially or wholly. A solder guiding face as the surface of a portion of the solder guiding terminal covering the side face is not normal to the bottom face.
    Type: Grant
    Filed: August 25, 2008
    Date of Patent: May 8, 2012
    Assignee: NEC Corporation
    Inventors: Koichiro Masuda, Tooru Mori
  • Publication number: 20120104548
    Abstract: A semiconductor capacitor with large area plates and a small footprint is formed on a semiconductor wafer by forming an opening in the wafer, depositing a first metal atoms through a first shadow mask that lies spaced apart from the wafer to form a first metal layer in the opening, a dielectric layer on the first metal layer, and a second metal atoms through a second shadow mask that lies spaced apart from the wafer to form a second metal layer on the dielectric layer.
    Type: Application
    Filed: November 2, 2010
    Publication date: May 3, 2012
    Inventors: Peter J. Hopper, William French
  • Publication number: 20120107965
    Abstract: A semiconductor device includes an insulating film provided over a semiconductor substrate, a conductive plug buried in the insulating film, an underlying conductive film which is provided on the conductive plug and on the insulating film and which has a flat upper surface, and a ferroelectric capacitor provided on the underlying conductive film. At least in a region on the conductive plug, the concentration of nitrogen in the underlying conductive film gradually decreases from the upper surface to the inside.
    Type: Application
    Filed: January 9, 2012
    Publication date: May 3, 2012
    Applicant: FUJITSU SEMICONDUCTOR LIMITED
    Inventor: Naoya Sashida
  • Patent number: 8169014
    Abstract: System and method for an improved interdigitated capacitive structure for an integrated circuit. A preferred embodiment comprises a first layer of a sequence of substantially parallel interdigitated strips, each strip of either a first polarity or a second polarity, the sequence alternating between a strip of the first polarity and a strip of the second polarity. A first dielectric layer is deposited over each strip of the first layer of strips. A first extension layer of a sequence of substantially interdigitated extension strips is deposited over the first dielectric layer, each extension strip deposited over a strip of the first layer of the opposite polarity. A first sequence of vias is coupled to the first extension layer, each via deposited over an extension strip of the same polarity. A second layer of a sequence of substantially parallel interdigitated strips can be coupled to the first sequence of vias.
    Type: Grant
    Filed: January 9, 2006
    Date of Patent: May 1, 2012
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Yueh-You Chen, Chung-Long Chang, Chih-Ping Chao
  • Patent number: 8169015
    Abstract: This semiconductor device according to the present invention includes a plurality of cylindrical lower electrodes aligned densely in a memory array region; a plate-like support which is contacted on the side surface of the cylindrical lower electrodes, and links to support the plurality of the cylindrical lower electrodes; a pore portion provided in the plate-like support; a dielectric film covering the entire surface of the cylindrical lower electrodes and the plate-like support in which the pore portion is formed; and an upper electrode formed on the surface of the dielectric film, wherein the boundary length of the part on the side surface of the cylindrical lower electrode which is exposed on the pore portion is shorter than the boundary length of the part on the side surface of the cylindrical lower electrode which is not exposed on the pore portion.
    Type: Grant
    Filed: May 6, 2008
    Date of Patent: May 1, 2012
    Assignee: Elpida Memory, Inc.
    Inventor: Toshiyuki Hirota
  • Publication number: 20120100687
    Abstract: Example embodiments relate to methods for fabricating a capacitor and methods for fabricating a semiconductor device including the capacitor. The methods for fabricating a capacitor may include forming a preliminary lower electrode with a first area on a substrate; implanting ions in the preliminary lower electrode to form a lower electrode with a second area that is larger or substantially larger than the first area; and forming a dielectric layer and an upper electrode on the lower electrode.
    Type: Application
    Filed: October 17, 2011
    Publication date: April 26, 2012
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Hanjin Lim, Jong-Bom Seo, Seokwoo Nam, Bonghyun Kim, Yongjae Lee, KiVin Im
  • Publication number: 20120098621
    Abstract: Integrated circuits are disclosed including at least one inductor-capacitor component, where each of the inductor-capacitor components includes an inductor and a capacitor constructed between the inductor and a substrate. The inductor includes at least one metal loop over a shield pattern forming a first capacitor terminal over patterned oxide layer with a second capacitor layer between the patterned oxide layer and the substrate.
    Type: Application
    Filed: December 29, 2011
    Publication date: April 26, 2012
    Applicant: Qualcomm Atheros, Inc.
    Inventor: Lalitkumar Nathawad
  • Patent number: 8164161
    Abstract: A structure of trench capacitor and method for manufacturing the trench capacitor is provided. The collar oxide layer of the trench capacitor is formed by a thermal oxidation process. Moreover, a protective layer such as silicon nitride covers the collar oxide layer. A failure analysis of the collar oxide layer can be operated by detecting the protective layer. If the protective layer is detected, the collar oxide layer is therefore at a suitable thickness. Furthermore, a mask layer rather than the collar oxide layer is used as a mask during the trench formation.
    Type: Grant
    Filed: August 24, 2008
    Date of Patent: April 24, 2012
    Assignee: United Microelectronics Corp.
    Inventors: Yi-Nan Su, Chun-Ming Chang
  • Publication number: 20120094463
    Abstract: A switched-capacitor circuit on a semiconductor device may include accurately matched, high-density metal-to-metal capacitors, using top-plate-to-bottom-plate fringe-capacitance for obtaining the desired capacitance values. A polysilicon plate may be inserted below the bottom metal layer, and bootstrapped to the top plate of each capacitor in order to minimize and/or eliminate the parasitic top-plate-to-substrate capacitance. This may free up the bottom metal layer to be used in forming additional fringe-capacitance, thereby increasing capacitance density. By forming each capacitance solely based on fringe-capacitance from the top plate to the bottom plate, no parallel-plate-capacitance is used, which may reduce capacitor mismatch.
    Type: Application
    Filed: November 23, 2011
    Publication date: April 19, 2012
    Inventor: Scott C. McLeod
  • Publication number: 20120091519
    Abstract: A semiconductor device includes a semiconductor substrate, an isolation structure disposed in the semiconductor substrate, a conductive layer disposed over the isolation structure, a capacitor disposed over the isolation structure, the capacitor including a top electrode, a bottom electrode, and a dielectric disposed between the top electrode and the bottom electrode, and a first contact electrically coupling the conductive layer and the bottom electrode, the bottom electrode substantially engaging the first contact on at least two faces.
    Type: Application
    Filed: October 15, 2010
    Publication date: April 19, 2012
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventor: Kuo-Chi Tu
  • Publication number: 20120094462
    Abstract: A semiconductor device, includes: a first storage node contact plug penetrating a first interlayer insulation layer and partially protruding above the first interlayer insulation layer; a second storage node contact plug contacting the first storage node contact plug that protrudes above the first interlayer insulation layer; a storage node contacting a top surface of the second storage node contact plug; and a second interlayer insulation layer formed over the first interlayer insulation layer, wherein the second interlayer insulation layer surrounds an outer sidewall at a bottom region of the first storage node, and the second storage node contact plug, and wherein the first storage node contact plug protruding above the first interlayer insulation layer and the second storage node contact plug.
    Type: Application
    Filed: December 19, 2011
    Publication date: April 19, 2012
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventors: Jong-Bum PARK, Han-Sang SONG, Jong-Kook PARK
  • Publication number: 20120086103
    Abstract: A method for forming a trench structure is provided for a semiconductor and/or memory device, such as an DRAM device. In one embodiment, the method for forming a trench structure includes forming a trench in a semiconductor substrate, and exposing the sidewalls of the trench to an arsenic-containing gas to adsorb an arsenic containing layer on the sidewalls of the trench. A material layer is then deposited on the sidewalls of the trench to encapsulate the arsenic-containing layer between the material layer and sidewalls of the trench.
    Type: Application
    Filed: October 7, 2010
    Publication date: April 12, 2012
    Applicant: International Business Machines Corporation
    Inventors: ASHIMA B. CHAKRAVARTI, Jacob B. Dadson, Paul J. Higgins, Babar A. Khan, John J. Moore, Christopher C. Parks, Rohit S. Takalkar
  • Publication number: 20120088348
    Abstract: The invention includes methods of forming reticles configured for imprint lithography, methods of forming capacitor container openings, and methods in which capacitor container openings are incorporated into DRAM arrays. An exemplary method of forming a reticle includes formation of a radiation-imageable layer over a material. A lattice pattern is then formed within the radiation-imageable layer, with the lattice pattern defining a plurality of islands of the radiation-imageable layer. The lattice-patterned radiation-imageable layer is utilized as a mask while subjecting the material under the lattice-patterned layer to an etch which transfers the lattice pattern into the material. The etch forms a plurality of pillars which extend only partially into the material, with the pillars being spaced from one another by gaps. The gaps are subsequently narrowed with a second material which only partially fills the gaps.
    Type: Application
    Filed: December 20, 2011
    Publication date: April 12, 2012
    Applicant: Micron Technology Inc.
    Inventor: Gurtej S. Sandhu
  • Publication number: 20120086064
    Abstract: A method of fabricating a trench capacitor is provided in which a material composition of a semiconductor region of a substrate varies in a quantity of at least one component therein such that the quantity alternates with depth a plurality of times between at least two different values. For example, a concentration of a dopant or a weight percentage of a second semiconductor material in a semiconductor alloy can alternate between with depth a plurality of times between higher and lower values. In such method, the semiconductor region can be etched in a manner dependent upon the material composition to form a trench having an interior surface which undulates in a direction of depth from the major surface of the semiconductor region. Such method can further include forming a trench capacitor having an undulating capacitor dielectric layer, wherein the undulations of the capacitor dielectric layer are at least partly determined by the undulating interior surface of the trench.
    Type: Application
    Filed: October 7, 2010
    Publication date: April 12, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Kangguo Cheng, Byeong Y. Kim, Munir D. Naeem, James P. Norum
  • Publication number: 20120080771
    Abstract: The present invention provides a 3D via capacitor and a method for forming the same. The capacitor includes an insulating layer on a substrate. The insulating layer has a via having sidewalls and a bottom. A first electrode overlies the sidewalls and at least a portion of the bottom of the via. A first high-k dielectric material layer overlies the first electrode. A first conductive plate is over the first high-k dielectric material layer. A second high-k dielectric material layer overlies the first conductive plate and leaves a remaining portion of the via unfilled. A second electrode is formed in the remaining portion of the via. The first conductive plate is substantially parallel to the first electrode and is not in contact with the first and second electrodes. An array of such 3D via capacitors is also provided.
    Type: Application
    Filed: October 5, 2010
    Publication date: April 5, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Chih-Chao Yang, Fen Chen, Baozhen Li
  • Publication number: 20120080772
    Abstract: A semiconductor device includes a substrate, a first single conductor, a single insulator, and a second single conductor. The substrate includes first and second regions located adjacent to each other. The first region has blind holes, each of which has an opening on a front surface of the substrate. The second region has a through hole penetrating the substrate. A width of each blind hole is less than a width of the through hole. The first single conductor is formed on the front surface of the substrate in such a manner that an inner surface of each blind hole and an inner surface of the through hole are covered with the first single conductor. The single insulator is formed on the first single conductor. The second single conductor is formed on the single insulator and electrically insulated form the first single conductor.
    Type: Application
    Filed: September 27, 2011
    Publication date: April 5, 2012
    Applicant: DENSO CORPORATION
    Inventors: Kazushi Asami, Yasuhiro Kitamura
  • Publication number: 20120083092
    Abstract: A method for forming a memory device in a semiconductor on insulator substrate is provided, in which a protective oxide that is present on the sidewalls of the trench protects the first semiconductor layer, i.e., SOI layer, of the semiconductor on insulator substrate during bottle etching of the trench. In one embodiment, the protective oxide reduces back channel effects of the transistors to the memory devices in the trench that are formed in the semiconductor on insulator substrate. In another embodiment, a thermal oxidation process increases the thickness of the buried dielectric layer of a bonded semiconductor on insulator substrate by oxidizing the bonded interface between the buried dielectric layer and at least one semiconductor layers of the semiconductor on insulator substrate. The increased thickness of the buried dielectric layer may reduce back channel effects in devices formed on the substrate having trench memory structures.
    Type: Application
    Filed: December 12, 2011
    Publication date: April 5, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Herbert L. Ho, Naoyoshi Kusaba, Karen A. Nummy, Carl J. Radens, Ravi M. Todi, Geng Wang
  • Publication number: 20120077326
    Abstract: In forming a ferro-electric capacitor structure of an FeRAM, a lower electrode film is formed (step S1), a first ferro-electric film is formed (step S2), the first ferro-electric film is crystallized by a first heat treatment (step S3), a second ferro-electric film in an amorphous state is formed on the first ferro-electric film (step S4), an SRO film in an amorphous state is formed on the second ferro-electric film (step S5), a first upper electrode film is formed on the SRO film (step S6), and the second ferro-electric film and the SRO film are crystallized by a second heat treatment (step S7).
    Type: Application
    Filed: June 28, 2011
    Publication date: March 29, 2012
    Applicant: FUJITSU SEMICONDUCTOR LIMITED
    Inventor: Yuya SUGIYAMA
  • Publication number: 20120075767
    Abstract: Methods of manufacturing metal-insulator-metal capacitor structures, and the metal-insulator-metal capacitor structures obtained, are disclosed. In one embodiment, a method includes providing a substrate, forming on the substrate a first metal layer comprising a first metal, and using atomic layer deposition with an H2O oxidant to deposit on the first metal layer a protective layer comprising TiO2. The method further includes using atomic layer deposition with an O3 oxidant to deposit on the protective layer a dielectric layer of a dielectric material, and forming on the dielectric layer a second metal layer comprising a second metal. In another embodiment, a metal-insulator-metal capacitor includes a bottom electrode comprising a first metal, a protective layer deposited on the bottom electrode and comprising TiO2, a dielectric layer deposited on the protective layer and comprising a dielectric material, and a top electrode formed on the dielectric layer and comprising a second metal.
    Type: Application
    Filed: September 28, 2011
    Publication date: March 29, 2012
    Applicant: IMEC
    Inventors: Mihaela Ioana Popovici, Johan Swerts, Jorge Kittl, Sven Van Elshocht
  • Publication number: 20120077322
    Abstract: To provide a dielectric film having good crystallinity while suppressing an influence of the size effects and preventing the dielectric film from being divided by an Al-doped layer although there is provided the Al-doped layer for improving the leakage characteristics in the dielectric film of a capacitor, the dielectric film has at least one Al-doped layer, and an area density of Al atoms in one layer of the Al-doped layer is smaller than 1.4E+14? atoms/cm2. Further, to achieve the area density, there is employed a combination of formation of a dielectric film using a general ALD method and Al doping using an adsorption site blocking ALD method including adsorbing a blocker molecule restricting an adsorption site of an Al source, adsorbing the Al source, and introducing a reaction gas for reaction.
    Type: Application
    Filed: September 26, 2011
    Publication date: March 29, 2012
    Applicants: TOKYO ELECTRON LIMITED, ELPIDA MEMORY, INC.
    Inventors: Toshiyuki HIROTA, Takakazu KIYOMURA, Yuichiro MOROZUMI, Shingo HISHIYA
  • Publication number: 20120068304
    Abstract: One or more embodiments relate to a method of forming a semiconductor structure, comprising: providing a semiconductor substrate; forming an opening within the substrate; forming a conductive layer within the opening; and forming a semiconductor layer over the conductive layer.
    Type: Application
    Filed: September 20, 2010
    Publication date: March 22, 2012
    Inventor: Thoralf KAUTZSCH
  • Publication number: 20120070955
    Abstract: The invention comprises methods of forming a conductive contact to a source/drain region of a field effect transistor, and methods of forming local interconnects. In one implementation, a method of forming a conductive contact to a source/drain region of a field effect transistor includes providing gate dielectric material intermediate a transistor gate and a channel region of a field effect transistor. At least some of the gate dielectric material extends to be received over at least one source/drain region of the field effect transistor. The gate dielectric material received over the one source/drain region is exposed to conditions effective to change it from being electrically insulative to being electrically conductive and in conductive contact with the one source/drain region. Other aspects and implementations are contemplated.
    Type: Application
    Filed: November 22, 2011
    Publication date: March 22, 2012
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Cem Basceri, Gurtej S. Sandhu, H. Montgomery Manning
  • Publication number: 20120068305
    Abstract: An active device region is formed in and on a semiconductor substrate. An interconnect layer is formed over the active device region, wherein the interconnect layer comprises a first dielectric material having a first dielectric constant, a first metal interconnect in the first dielectric material, and a second metal interconnect in the first dielectric material and laterally spaced apart from the first metal interconnect. A portion of the first dielectric material is removed such that a remaining portion of the first dielectric material remains within the interconnect layer, wherein the removed portion is removed from a location between the first and second metal interconnects. The location between the first and second metal interconnects from which the portion of the first dielectric material was removed is filled with a second dielectric material having a second dielectric constant, the second dielectric constant being higher than the first dielectric constant.
    Type: Application
    Filed: September 21, 2010
    Publication date: March 22, 2012
    Inventors: MEHUL D. SHROFF, Mark D. Hall
  • Patent number: 8138537
    Abstract: In a semiconductor device comprising a capacitive element, an area of the capacitive element is reduced without impairing performance, and further, without addition of an extra step in a manufacturing process.
    Type: Grant
    Filed: July 26, 2010
    Date of Patent: March 20, 2012
    Assignee: Renesas Electronics Corporation
    Inventor: Akihiko Sato
  • Patent number: 8138057
    Abstract: A metal oxide alloy layer comprises a first layer including a first metal oxide and having a first thickness, and a second layer formed on the first layer, the second layer including a second metal oxide and having a second thickness, wherein a value of the first thickness is such that the first metal oxide is allowed to move into the second layer and a value of the second thickness is such that the second metal oxide is allowed to move into the first layer to form a single-layered structure in which the first and second metal oxides are mixed.
    Type: Grant
    Filed: August 22, 2008
    Date of Patent: March 20, 2012
    Assignee: Samsung Electronics Co., Ltd
    Inventors: Jung-Ho Lee, Jung-Sik Choi, Jun-Hyun Cho, Tae-Min Eom, Ji-Hyun Lee
  • Patent number: 8138539
    Abstract: Semiconductor devices and methods of manufacture thereof are disclosed. In one embodiment, a capacitor plate includes a plurality of first parallel conductive members, and a plurality of second parallel conductive members disposed over the plurality of first parallel conductive members. A first base member is coupled to an end of the plurality of first parallel conductive members, and a second base member is coupled to an end of the plurality of second parallel conductive members. A connecting member is disposed between the plurality of first parallel conductive members and the plurality of second parallel conductive members, wherein the connecting member includes at least one elongated via.
    Type: Grant
    Filed: November 29, 2007
    Date of Patent: March 20, 2012
    Assignee: Infineon Technologies AG
    Inventors: Hans-Joachim Barth, Erwin Ruderer, Alexander Von Glasow, Philipp Riess, Erdem Kaltalioglu, Peter Baumgartner, Thomas Benetik, Helmut Horst Tews
  • Publication number: 20120064694
    Abstract: A method of forming a deep trench structure for a semiconductor device includes forming a mask layer over a semiconductor substrate. An opening in the mask layer is formed by patterning the mask layer, and a deep trench is formed in the semiconductor substrate using the patterned opening in the mask layer. A sacrificial fill material is formed over the mask layer and into the deep trench. A first portion of the sacrificial fill material is recessed from the deep trench and a first dopant implant forms a first doped region in the semiconductor substrate. A second portion of the sacrificial fill material is recessed from the deep trench and a second dopant implant forms a second doped region in the semiconductor substrate, wherein the second doped region is formed underneath the first doped region such that the second doped region and the first doped region are contiguous with each other.
    Type: Application
    Filed: September 13, 2010
    Publication date: March 15, 2012
    Applicant: International Business Machines Corporation
    Inventors: Roger A. BOOTH, JR., Kangguo CHENG, Joseph ERVIN, Chengwen PEI, Ravi M. TODI, Geng WANG, Yanli ZHANG
  • Publication number: 20120061798
    Abstract: A dual node dielectric trench capacitor includes a stack of layers formed in a trench. The stack of layers include, from bottom to top, a first conductive layer, a first node dielectric layer, a second conductive layer, a second node dielectric layer, and a third conductive layer. The dual node dielectric trench capacitor includes two back-to-back capacitors, which include a first capacitor and a second capacitor. The first capacitor includes the first conductive layer, the first node dielectric layer, the second conductive layer, and the second capacitor includes the second conductive layer, the second node dielectric layer, and the third conductive layer. The dual node dielectric trench capacitor can provide about twice the capacitance of a trench capacitor employing a single node dielectric layer having a comparable composition and thickness as the first and second node dielectric layers.
    Type: Application
    Filed: September 14, 2010
    Publication date: March 15, 2012
    Applicant: International Business Machines Corporation
    Inventors: Keich Kwong Hon Wong, Ramachandra Divakaruni, Roger A. Booth, JR.
  • Publication number: 20120064689
    Abstract: A method for manufacturing a semiconductor device includes at least forming a lower electrode comprising titanium nitride on a semiconductor substrate, forming a dielectric film comprising zirconium oxide as a primary constituent on the lower electrode, forming a first protective film comprising a titanium compound on the dielectric film, and forming an upper electrode comprising titanium nitride on the first protective film. The method can include a step of forming a second protective film on the lower electrode before the step of forming the dielectric film on the lower electrode.
    Type: Application
    Filed: September 8, 2011
    Publication date: March 15, 2012
    Applicant: ELPIDA MEMORY, INC.
    Inventors: Toshiyuki HIROTA, Takakazu KIYOMURA
  • Patent number: 8133792
    Abstract: A structure of a capacitor set is described, including at least two capacitors that are disposed at the same position on a substrate and include a first capacitor and a second capacitor. The first capacitor includes multiple first capacitor units electrically connected with each other in parallel. The second capacitor includes multiple second capacitor units electrically connected with each other in parallel. The first and the second capacitor units are arranged spatially intermixing with each other to form an array.
    Type: Grant
    Filed: July 4, 2006
    Date of Patent: March 13, 2012
    Assignee: United Microelectronics Corp.
    Inventors: Victor-Chiang Liang, Chien-Kuo Yang, Hua-Chou Tseng, Chun-Yao Ko, Cheng-Wen Fan, Yu-Ho Chiang, Chih-Yuh Tzeng
  • Publication number: 20120058612
    Abstract: In the method for manufacturing a semiconductor device of the invention, a bonding layer is formed over a substrate, an insulating film and a storage capacitor portion lower electrode are formed over the bonding layer, a single crystal silicon layer is formed over the insulating film, a storage capacitor portion insulating film is formed over the storage capacitor portion lower electrode, a wiring is formed over the storage capacitor portion insulating film, a channel forming region and a low concentration impurity region are formed over the single crystal silicon layer, and a gate insulating film and a gate electrode are formed over the single crystal silicon layer. The storage capacitor portion insulating film is formed by depositing a YSZ film with a single crystal silicon layer used as a base film, whereby the permittivity increases and thus the leakage current from the storage capacitor portion is suppressed.
    Type: Application
    Filed: October 21, 2011
    Publication date: March 8, 2012
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventor: Kengo AKIMOTO
  • Publication number: 20120056257
    Abstract: A method and system in which an embedded memory is fabricated in accordance with a conventional logic process includes one or more non-volatile memory cells, each having an access transistor and a capacitor, which share a common floating gate electrode. The coupling capacitor is provided with a dielectric layer having a thickness greater than the dielectric layer of the access transistor. Regions under the capacitor are implanted with a high dose implant to form an electrically shorted doped area in the channel region of the capacitor. The high dose implant improves the coupling ratio of the capacitor and enhances the uniformity of the capacitor's oxide layer.
    Type: Application
    Filed: September 2, 2010
    Publication date: March 8, 2012
    Applicant: MoSys, Inc.
    Inventor: Jeong Y. Choi
  • Publication number: 20120056299
    Abstract: An integrated capacitor comprises a layer of dielectric material known as functional dielectric material based on crystallized material of perovskite type, between at least one first electrode known as a bottom electrode at the surface of a substrate and at least one second electrode known as a top electrode, said electrodes being electrically insulated by a layer of electrically insulating material in order to allow at least one contact on the top electrode. The electrically insulating material is made of an amorphous dielectric material of perovskite type having a dielectric constant lower than that of the crystallized material of perovskite type. The contact is formed from an etched contacting layer in contact with the electrically insulating dielectric layer level with its surface parallel to the plane of the layers. A process for manufacturing such an integrated capacitor is also provided.
    Type: Application
    Filed: September 4, 2011
    Publication date: March 8, 2012
    Applicant: Commissariat A L'Energie Atomique et aux Energies Alternatives
    Inventors: Emmanuel DEFAY, Gwenaël LE RHUN, Aurélien SUHM
  • Patent number: 8129200
    Abstract: A nonvolatile ferroelectric memory device includes a plurality of unit cells. Each of the unit cells includes a cell capacitor and a cell transistor. The cell capacitor includes a storage node, a ferroelectric layer, and a plate line. The cell capacitors of more than one of the plurality of unit cells are provided in a trench.
    Type: Grant
    Filed: October 15, 2010
    Date of Patent: March 6, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventor: Hee Bok Kang
  • Patent number: 8129772
    Abstract: Disclosed are integrated circuit structures each having a silicon germanium film incorporated as a local interconnect and/or an electrical contact. These integrated circuit structures provide improved local interconnects between devices and/or increased capacitance to devices without significantly increasing structure surface area or power requirements. Specifically, disclosed are integrated circuit structures that incorporate a silicon germanium film as one or more of the following features: as a local interconnect between devices; as an electrical contact to a device (e.g., a deep trench capacitor, a source/drain region of a transistor, etc.); as both an electrical contact to a deep trench capacitor and a local interconnect between the deep trench capacitor and another device; and as both an electrical contact to a deep trench capacitor and as a local interconnect between the deep trench capacitor and other devices.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: March 6, 2012
    Assignee: International Business Machines Corporation
    Inventor: Steven H. Voldman
  • Patent number: 8129240
    Abstract: A method of forming a plurality of capacitors includes an insulative material received over a capacitor array area and a circuitry area. The array area comprises a plurality of capacitor electrode openings within the insulative material received over individual capacitor storage node locations. The intervening area comprises a trench. Conductive metal nitride-comprising material is formed within the openings and against a sidewall portion of the trench to less than completely fill the trench. Inner sidewalls of the conductive material within the trench are annealed in a nitrogen-comprising atmosphere. The insulative material within the array area is etched with a liquid etching solution effective to expose outer sidewall portions of the conductive material within the array area. The conductive material within the array area is incorporated into a plurality of capacitors.
    Type: Grant
    Filed: August 16, 2010
    Date of Patent: March 6, 2012
    Assignee: Micron Technology, Inc.
    Inventors: Vishwanath Bhat, Kevin R. Shea
  • Publication number: 20120052650
    Abstract: The invention includes methods for selectively etching insulative material supports relative to conductive material. The invention can include methods for selectively etching silicon nitride relative to metal nitride. The metal nitride can be in the form of containers over a semiconductor substrate, with such containers having upwardly-extending openings with lateral widths of less than or equal to about 4000 angstroms; and the silicon nitride can be in the form of a layer extending between the containers. The selective etching can comprise exposure of at least some of the silicon nitride and the containers to Cl2 to remove the exposed silicon nitride, while not removing at least the majority of the metal nitride from the containers. In subsequent processing, the containers can be incorporated into capacitors.
    Type: Application
    Filed: November 3, 2011
    Publication date: March 1, 2012
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Kevin R. Shea, Thomas M. Graettinger
  • Patent number: 8124492
    Abstract: Provided is a semiconductor device manufacturing method for a capacitor having a dielectric film which can be formed into a thin film, can be formed at a low temperature, and has a readily controllable property. The manufacturing method includes: forming an oxide film or an oxynitride film on a conductor for serving as one electrode of a capacitor; forming, on the oxide film or the oxynitride film, a manganese oxide film for serving as a dielectric film of the capacitor; and forming, on the manganese oxide film, a conductive film for serving as the other electrode of the capacitor.
    Type: Grant
    Filed: March 10, 2010
    Date of Patent: February 28, 2012
    Assignee: Tokyo Electron Limited
    Inventors: Kenji Matsumoto, Hitoshi Itoh, Hiroshi Sato
  • Publication number: 20120043595
    Abstract: A capacitor device includes a substrate including a first well having a first conductivity type and a first voltage applied thereto and a second well having a second conductivity type and a second voltage applied thereto; and a gate electrode disposed on an upper portion of the first well or an upper portion of the second well in such a way that the gate electrode is insulated from the first well or the second well, wherein capacitances of the capacitor device include a first capacitance between the first well and the second well and a second capacitance between the first well or the second well and the gate electrode.
    Type: Application
    Filed: June 9, 2011
    Publication date: February 23, 2012
    Inventors: Dong-Ryul CHANG, Hwa-Sook Shin
  • Publication number: 20120045881
    Abstract: The present invention relates to a method for fabricating an electronic component, comprising fabricating, on a substrate (102) at least one integrated MIM capacitor (114) having a top capacitor electrode (118) and a bottom capacitor electrode (112) at a smaller distance from the substrate than the top capacitor electrode; fabricating an electrically insulating first cover layer (120) on the top capacitor electrode, which first cover layer partly or fully covers the top capacitor electrode and is made of a lead-containing dielectric material; thinning the first cover layer; fabricating an electrically insulating second cover layer (124) on the first cover layer, which second cover layer partly or fully covers the first cover layer and has a dielectric permittivity smaller than that of the first cover layer; and fabricating an electrically conductive resistor layer (126) on the second cover layer, which resistor layer has a defined ohmic resistance.
    Type: Application
    Filed: April 14, 2010
    Publication date: February 23, 2012
    Applicant: NXP B.V.
    Inventors: Aarnoud Laurens Roest, Linda Van Leuken-Peters
  • Patent number: 8119491
    Abstract: Methods of fabricating a passive element and a semiconductor device including the passive element are disclosed including the use of a dummy passive element. A dummy passive element is a passive element or wire which is added to the chip layout to aid in planarization but is not used in the active circuit. One embodiment of the method includes forming the passive element and a dummy passive element adjacent to the passive element; forming a dielectric layer over the passive element and the dummy passive element, wherein the dielectric layer is substantially planar between the passive element and the dummy passive element; and forming in the dielectric layer an interconnect to the passive element through the dielectric layer and a dummy interconnect portion overlapping at least a portion of the dummy passive element. The methods eliminate the need for planarizing.
    Type: Grant
    Filed: April 21, 2008
    Date of Patent: February 21, 2012
    Assignee: International Business Machines Corporation
    Inventors: Anil K. Chinthakindi, Timothy J. Dalton, Ebenezer E. Eshun, Jeffrey P. Gambino, Anthony K. Stamper, Kunal Vaed
  • Publication number: 20120040507
    Abstract: A method of forming a plurality of capacitors includes providing a plurality of capacitor electrodes, an elevationally inner insulative retaining material received laterally about the capacitor electrodes, an elevationally outer insulative retaining material received laterally about the capacitor electrodes, a first material received laterally about the capacitor electrodes elevationally inward of the inner insulative retaining material, and a second material received laterally about the capacitor electrodes elevationally between the inner and outer insulative retaining materials. Openings are anisotropically etched to extend through the outer insulative retaining material and the second material. After the anisotropic etching, remaining of the second material is isotropically etched through the openings from being received laterally about the capacitor electrodes between the inner and outer insulative retaining materials.
    Type: Application
    Filed: August 11, 2010
    Publication date: February 16, 2012
    Inventor: Che-Chi Lee
  • Publication number: 20120040509
    Abstract: A method for manufacturing a semiconductor device includes fabricating an active layer on a first side of a semiconductor substrate. The method also includes fabricating a metal layer on a second side of the semiconductor substrate. The metal layer includes a passive device embedded within the metal layer. The passive device can electrically couple to the active layer with through vias.
    Type: Application
    Filed: October 24, 2011
    Publication date: February 16, 2012
    Applicant: QUALCOMM INCORPORATED
    Inventors: Jonghae Kim, Shiqun Gu, Brian Matthew Henderson, Thomas R. Toms, Matthew Nowak
  • Publication number: 20120037970
    Abstract: Memory devices comprise a microelectronic substrate including a cell array region and a peripheral region adjacent the cell array region, the cell array region including therein an array of memory cells and the peripheral region including therein peripheral circuits for the array of memory cells, the microelectronic substrate including a lower layer that extends across the cell array region and across the peripheral region and that includes a flat outer surface from the cell array region to the peripheral region. A signal transfer conductor layer extends in the cell array region beneath the flat outer surface of the lower layer and extends in the peripheral region above the flat outer surface of the lower layer. An insulating layer is provided on the lower layer, the insulating layer extending across the cell array region and the peripheral region and also including a flat outer surface from the cell array region to the peripheral region.
    Type: Application
    Filed: May 27, 2011
    Publication date: February 16, 2012
    Inventors: Wonmo Park, Hyunchul Kim, Hyodong Ban, Hyunju Lee