With Multiple Levels Of Polycrystalline Silicon Patents (Class 257/381)
  • Patent number: 10586815
    Abstract: A display device includes: a substrate; a first gate electrode disposed on the substrate; a gate insulating layer disposed on the first gate electrode; a first active layer disposed on the gate insulating layer and including a polysilicon layer; a second gate electrode disposed on the gate insulating layer; a first insulating layer disposed on the second gate electrode; a second active layer disposed on the first insulating layer and including a metal oxide layer; a first source electrode, a first drain electrode, a second source electrode, and a second drain electrode, wherein the first source and drain electrodes are disposed on the first insulating layer and electrically connect to the first active layer, and the second source and drain electrodes are disposed on the second active layer and electrically connect to the second active layer; and a display medium layer disposed on the substrate.
    Type: Grant
    Filed: December 14, 2018
    Date of Patent: March 10, 2020
    Assignee: INNOLUX CORPORATION
    Inventor: KuanFeng Lee
  • Patent number: 9553161
    Abstract: A method for forming a semiconductor device is provided. The method includes providing a semiconductor substrate and forming a metal gate stack including a metal gate electrode over the semiconductor substrate. The method also includes applying an oxidizing solution containing an oxidizing agent over the metal gate electrode to oxidize the metal gate electrode to form a metal oxide layer on the metal gate electrode.
    Type: Grant
    Filed: June 22, 2015
    Date of Patent: January 24, 2017
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Chi-Jen Liu, Li-Chieh Wu, Shich-Chang Suen, Liang-Guang Chen
  • Patent number: 9406730
    Abstract: A method of forming a polycrystalline silicon layer includes forming a first amorphous silicon layer and forming a second amorphous silicon layer such that the first amorphous silicon layer and the second amorphous silicon layer have different film qualities from each other, and crystallizing the first amorphous silicon layer and the second amorphous silicon layer using a metal catalyst to form a first polycrystalline silicon layer and a second polycrystalline silicon layer. A thin film transistor includes the polycrystalline silicon layer formed by the method and an organic light emitting device includes the thin film transistor.
    Type: Grant
    Filed: September 19, 2014
    Date of Patent: August 2, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Byoung-Keon Park, Jong-Ryuk Park, Yun-Mo Chung, Tak-Young Lee, Jin-Wook Seo, Ki-Yong Lee, Min-Jae Jeong, Yong-Duck Son, Byung-Soo So, Seung-Kyu Park, Dong-Hyun Lee, Kil-Won Lee, Jae-Wan Jung
  • Patent number: 9147694
    Abstract: One or more techniques or systems for mitigating density gradients between two or more regions of cells are provided herein. In some embodiments, an array of cells is associated with a dummy region. For example, the array of cells includes an array of gates and an array of OD regions. In some embodiments, the array of gates includes a first set of gates associated with a first gate dimension and a second set of gates associated with a second gate dimension. In some embodiments, the array of OD regions includes a first set of OD regions associated with a first OD dimension and a second set of OD regions associated with a second OD dimension. In this manner, at least one of a pattern density, gate density, or OD density is customized to a region associated with active cells, thus mitigating density gradients between respective regions.
    Type: Grant
    Filed: December 20, 2012
    Date of Patent: September 29, 2015
    Assignee: Taiwan Semiconductor Manufacturing Company Limited
    Inventors: Yu-Jung Chang, C. R. Hsu, Chin-Chang Hsu, Wen-Ju Yang, Chung-min Fu
  • Patent number: 8940612
    Abstract: An integrated circuit containing a metal gate transistor and a thin polysilicon resistor may be formed by forming a first layer of polysilicon and removed it in an area for the thin polysilicon resistor. A second layer of polysilicon is formed over the first layer of polysilicon and in the area for the thin polysilicon resistor. The thin polysilicon resistor is formed in the second layer of polysilicon and the sacrificial gate is formed in the first layer of polysilicon and the second layer of polysilicon. A PMD layer is formed over the second layer of polysilicon and a top portion of the PMD layer is removed so as to expose the sacrificial gate but not expose the second layer of polysilicon in the thin polysilicon resistor. The sacrificial gate is removed and a metal replacement gate is formed.
    Type: Grant
    Filed: November 8, 2013
    Date of Patent: January 27, 2015
    Assignee: Texas Instruments Incorporated
    Inventor: Kamel Benaissa
  • Patent number: 8928090
    Abstract: A metallic top surface of a replacement gate structure is oxidized to convert a top portion of the replacement gate structure into a dielectric oxide. After removal of a planarization dielectric layer, selective epitaxy is performed to form a raised source region and a raised drain region that extends higher than the topmost surface of the replacement gate structure. A gate level dielectric layer including a first dielectric material is deposited and subsequently planarized employing the raised source and drain regions as stopping structures. A contact level dielectric layer including a second dielectric material is formed over the gate level dielectric layer, and contact via holes are formed employing an etch chemistry that etches the second dielectric material selective to the first dielectric material. Raised source and drain regions are recessed. Self-aligned contact structures can be formed by filling the contact via holes with a conductive material.
    Type: Grant
    Filed: October 31, 2012
    Date of Patent: January 6, 2015
    Assignee: International Business Machines Corporation
    Inventors: Soon-Cheon Seo, Balasubramanian S. Haran, Alexander Reznicek
  • Publication number: 20150001638
    Abstract: A preferred embodiment includes a method of manufacturing a fuse element that includes forming a polysilicon layer over a semiconductor structure, doping the polysilicon layer with carbon or nitrogen, depositing a metal over the polysilicon layer; and annealing the metal and polysilicon layer to form a silicide in an upper portion of the polysilicon layer.
    Type: Application
    Filed: September 16, 2014
    Publication date: January 1, 2015
    Inventors: Jiang Yan, Henning Haffner, Frank Huebinger, Sun-Oo Kim, Richard Lindsay, Klaus Schruefer
  • Patent number: 8853700
    Abstract: Cross-coupling between a gate conductor and an active region of a semiconductor substrate is provided by forming a gate dielectric layer on the semiconductor substrate and lithographically patterning the gate dielectric layer to form opening therein over a portion of the active region at which electrical contact with the gate conductor is desired. After implanting electrical dopants, a gate conductor layer is deposited and patterned. A remaining portion of the gate conductor layer includes an integral conductor structure, which includes a first portion overlying a gate dielectric over an active region and a second portion contacting the semiconductor material of the same active region or a different active region. The gate dielectric layer can be deposited within gate cavities in planarization dielectric material layer in a replacement gate scheme, or can be deposited on planar surfaces of active regions and/or shallow trench isolation structures in a gate first processing scheme.
    Type: Grant
    Filed: August 10, 2011
    Date of Patent: October 7, 2014
    Assignee: International Business Machines Corporation
    Inventors: Viraj Y. Sardesai, Robert C. Wong
  • Patent number: 8658509
    Abstract: In sophisticated semiconductor devices comprising high-k metal gate electrode structures formed on the basis of a replacement gate approach, semiconductor-based resistors may be provided without contributing to undue process complexity in that the resistor region is recessed prior to depositing the semiconductor material of the gate electrode structure. Due to the difference in height level, a reliable protective dielectric material layer is preserved above the resistor structure upon exposing the semiconductor material of the gate electrode structure and removing the same on the basis of selective etch recipes. Consequently, well-established semiconductor materials, such as polysilicon, may be used for the resistive structures in complex semiconductor devices, substantially without affecting the overall process sequence for forming the sophisticated replacement gate electrode structures.
    Type: Grant
    Filed: October 19, 2010
    Date of Patent: February 25, 2014
    Assignee: GLOBALFOUNDRIES Inc.
    Inventors: Ralf Richter, Jens Heinrich, Andy Wei
  • Patent number: 8563385
    Abstract: A method for fabricating a field effect transistor device includes forming a gate stack on a substrate, forming a spacer on the substrate, adjacent to the gate stack, forming a first portion of an active region on the substrate, the first portion of the active region having a first facet surface adjacent to the gate stack, forming a second portion of the active region on a portion of the first portion of the active region, the second portion of the active region having a second facet surface adjacent to the gate stack, the first facet surface and the second facet surface partially defining a cavity adjacent to the gate stack.
    Type: Grant
    Filed: September 7, 2012
    Date of Patent: October 22, 2013
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Bruce B. Doris, Ali Khakifirooz, Alexander Reznicek
  • Patent number: 8445971
    Abstract: A method for fabricating a field effect transistor device includes forming a gate stack on a substrate, forming a spacer on the substrate, adjacent to the gate stack, forming a first portion of an active region on the substrate, the first portion of the active region having a first facet surface adjacent to the gate stack, forming a second portion of the active region on a portion of the first portion of the active region, the second portion of the active region having a second facet surface adjacent to the gate stack, the first facet surface and the second facet surface partially defining a cavity adjacent to the gate stack.
    Type: Grant
    Filed: September 20, 2011
    Date of Patent: May 21, 2013
    Assignee: International Business Machines Corporation
    Inventors: Kangguo Cheng, Bruce B. Doris, Ali Khakifirooz, Alexander Reznicek
  • Patent number: 8314462
    Abstract: A semiconductor device may include an insulating layer and a semiconductor electrode on the insulating layer. An area of increased electrical resistance may separate a contact area of the semiconductor electrode from an active area of the semiconductor electrode. In addition, a metal contact may be provided on the contact area of the semiconductor electrode opposite the insulating layer.
    Type: Grant
    Filed: July 28, 2009
    Date of Patent: November 20, 2012
    Assignee: Cree, Inc.
    Inventors: Brett Adam Hull, Sei-Hyung Ryu, James Theodore Richmond
  • Patent number: 8304342
    Abstract: A chemical mechanical polishing (CMP) stop layer is implemented in a semiconductor fabrication process. The CMP stop layer, among other things, mitigates erosion of sidewall spacers during semiconductor fabrication and adverse effects associated therewith.
    Type: Grant
    Filed: October 31, 2006
    Date of Patent: November 6, 2012
    Assignee: Texas Instruments Incorporated
    Inventors: Michael Francis Pas, Manfred Ramin
  • Publication number: 20120228719
    Abstract: Provided is a resistance circuit having a resistance element with high resistance and high accuracy. An insulating film such as a silicon nitride film is formed on the resistance element made of a thin film material whose thickness is reduced to 500 ? or smaller. The insulating film prevents passing through of the contact hole arranged on the resistance element during etching for forming the contact hole.
    Type: Application
    Filed: March 12, 2012
    Publication date: September 13, 2012
    Inventor: Hirofumi HARADA
  • Patent number: 8105946
    Abstract: A method of forming the conductive lines of a semiconductor memory device comprises forming a first polysilicon layer over an underlying layer, forming first polysilicon patterns by patterning the first polysilicon layer, filling the space between the first polysilicon patterns with an insulating layer, etching a top portion of the first polysilicon patterns to form recess regions, forming spacers on the sidewalls of the recess regions, filling the recess regions with a second polysilicon layer to form second polysilicon patterns, and performing a metal silicidation process to convert the second polysilicon patterns to metal silicide patterns.
    Type: Grant
    Filed: December 17, 2010
    Date of Patent: January 31, 2012
    Assignee: Hynix Semiconductor Inc.
    Inventor: Won Sic Woo
  • Patent number: 8044450
    Abstract: A semiconductor device comprising a resistance element with a high resistance and high resistance accuracy and a non-volatile semiconductor storage element is rationally realized by comprising the non-volatile semiconductor storage element comprising a first isolation formed to isolate a first semiconductor area, a first insulator, and a first electrode in a self-aligned manner, and a second electrode, and the resistance element comprising a second isolation formed to isolate a second semiconductor area, a third insulator and a conductor layer in a self-aligned manner, and third and fourth electrodes formed on each end of the conductor layer via a fourth insulator, and connected with the conductor layer. The conductor layer or the third and fourth electrodes include the same material with the first or second electrode, respectively.
    Type: Grant
    Filed: July 6, 2005
    Date of Patent: October 25, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventors: Mitsuhiro Noguchi, Susumu Yoshikawa, Koichi Fukuda
  • Patent number: 8018027
    Abstract: A flip-bonded dual-substrate inductor includes a base substrate, a first inductor body portion provided on a surface of the base substrate, a cover substrate, a second inductor body portion provided on a surface of a cover substrate, and a nanoparticle bonding material provided between the base substrate surface and the cover substrate surface to electrically connect the first inductor body portion and the second inductor body portion. A method for fabricating a flip-bonded dual-substrate inductor including forming a first inductor body portion on a surface of a base substrate, forming a second inductor body portion on a surface of a cover substrate, and attaching the base substrate surface to the cover substrate surface using a nanoparticle bonding material that electrically connects the first inductor body portion and the second inductor body portion.
    Type: Grant
    Filed: October 30, 2009
    Date of Patent: September 13, 2011
    Assignee: Murata Manufacturing Co., Ltd.
    Inventors: Tatsuo Rao Bizen, Yinon Degani, Kunquan Sun
  • Patent number: 7977767
    Abstract: An inductor includes an inductor wiring made of a metal layer and having a spiral planar shape. In a cross-sectional shape in a width direction of the inductor wiring, the inductor wiring has a larger film thickness at least in its inner side end than in its middle part.
    Type: Grant
    Filed: December 11, 2008
    Date of Patent: July 12, 2011
    Assignee: Panasonic Corporation
    Inventors: Yutaka Nabeshima, Masaoki Kajiyama, Tomohiro Matsunaga, Hidenori Iwadate
  • Patent number: 7956386
    Abstract: A wiring structure in a semiconductor device may include a first insulation layer formed on a substrate, a first contact plug, a capping layer pattern, a second insulation layer and a second contact plug. The first insulation layer has a first opening that exposes a contact region of the substrate. The first contact plug is formed on the contact region to partially fill up the first opening. The capping layer pattern is formed on the first contact plug to fill up the first opening. The second insulation layer is formed on the capping layer pattern and the first insulation layer. The second insulation layer has a second opening passing through the capping layer pattern to expose the first contact plug. The second contact plug is formed on the first contact plug in the second opening. Since the wiring structure includes the capping layer pattern, the wiring structure may prevent a contact failure by preventing chemicals from permeating into the first contact plug.
    Type: Grant
    Filed: June 29, 2007
    Date of Patent: June 7, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Ki-Soon Bae, Sei-Ryung Choi
  • Patent number: 7939874
    Abstract: A semiconductor device has semiconductor elements formed on a silicon substrate. A first one of the semiconductor elements has a region formed with a surface orientation of <100>. A second one of the semiconductor elements has a region formed with a surface orientation of <110>or <111>. A third one of the semiconductor elements has a region formed with a surface orientation different from the respective surface orientations of the regions of the first and second semiconductor elements.
    Type: Grant
    Filed: February 5, 2008
    Date of Patent: May 10, 2011
    Assignee: Seiko Instruments Inc.
    Inventor: Hitomi Sakurai
  • Patent number: 7928515
    Abstract: A semiconductor device includes a dual gate CMOS logic circuit having gate electrodes with different conducting types and a trench capacitor type memory on a same substrate includes a trench of the substrate for the trench capacitor, a dielectric film formed in the trench, a first poly silicon film formed inside of the trench, and a cell plate electrode located above the dielectric film. The cell plate electrode includes a first poly silicon film formed on the dielectric film partially filling the trench, and a second poly silicon film formed on the first poly silicon film to completely fill the trench. The second poly silicon film includes a sufficient film thickness for forming gate electrodes, wherein the impurity concentration of the first poly silicon film is higher than the impurity concentration of the second poly silicon film.
    Type: Grant
    Filed: June 11, 2008
    Date of Patent: April 19, 2011
    Assignee: Fujitsu Semiconductor Limited
    Inventors: Masayoshi Asano, Yoshiyuki Suzuki, Tetsuya Ito, Hajime Wada
  • Patent number: 7923783
    Abstract: A semiconductor memory device according to an embodiment of the present invention includes a resistance element which is constructed with a first conductor which extends in a first direction and is connected to a first contact; a second conductor which extends in said first direction and is connected to a second contact; and a first insulation film which exists between said first conductor and said second conductor, said first insulation film also having an opening in which a third conductor which connects said first conductor and said second conductor is arranged.
    Type: Grant
    Filed: March 20, 2009
    Date of Patent: April 12, 2011
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Takumi Abe
  • Patent number: 7919822
    Abstract: A semiconductor device that suppresses variation and a drop in the breakdown voltage of transistors. In the semiconductor device in which a logic transistor and a high-breakdown-voltage transistor are formed on one Si substrate, an insulating film which has an opening region and which is thick around the opening region is formed on a low concentration drain region formed in the Si substrate on one side of a gate electrode of the high-breakdown-voltage transistor. The insulating film around the opening region has a two-layer structure including a gate insulating film and a sidewall insulating film. When ion implantation is performed on the low concentration drain region beneath the opening region to form a high concentration drain region, the insulating film around the opening region prevents impurities from passing through.
    Type: Grant
    Filed: March 10, 2006
    Date of Patent: April 5, 2011
    Assignee: Fujitsu Semiconductor Limited
    Inventor: Hitoshi Asada
  • Patent number: 7919821
    Abstract: An integrated circuit includes a diffusion layer, a first poly-silicon layer, and a second poly-silicon layer. The first poly-silicon layer is located on the diffusion layer to form a transistor. The second poly-silicon includes a first section and a second section. The first section of the second poly-silicon layer is located on the first poly-silicon layer to form a capacitor. The second section of the second poly-silicon layer is located on the diffusion layer to form a resistor.
    Type: Grant
    Filed: April 9, 2008
    Date of Patent: April 5, 2011
    Assignee: NOVATEK Microelectronics Corp.
    Inventors: Yan-Nan Li, Hsueh-Li Chiang
  • Patent number: 7838946
    Abstract: A method for fabricating a semiconductor structure is disclosed. A substrate with a first transistor having a first dummy gate and a second transistor having a second dummy gate is provided. The conductive types of the first transistor and the second transistor are different. The first and second dummy gates are simultaneously removed to form respective first and second openings. A high-k dielectric layer, a second type conductive layer and a first low resistance conductive layer are formed on the substrate and fill in the first and second openings, with the first low resistance conductive layer filling up the second opening. The first low resistance conductive layer and the second type conductive layer in the first opening are removed. A first type conductive layer and a second low resistance conductive layer are then formed in the first opening, with the second low resistance conductive layer filling up the first opening.
    Type: Grant
    Filed: March 28, 2008
    Date of Patent: November 23, 2010
    Assignee: United Microelectronics Corp.
    Inventors: Chih-Hao Yu, Li-Wei Cheng, Che-Hua Hsu, Tian-Fu Chiang, Cheng-Hsien Chou, Chien-Ming Lai, Yi-Wen Chen, Chien-Ting Lin, Guang-Hwa Ma
  • Patent number: 7786536
    Abstract: In a semiconductor device, a first p-type MIS transistor includes: a first gate insulating film formed on a first active region; a first gate electrode formed on the first gate insulating film; a first side-wall insulating film; a first p-type source/drain region; a first contact liner film formed over the first active region; a first interlayer insulating film formed on the first contact liner film; and a first contact plug formed to reach the top surface of the first source/drain region. The first contact liner film has a slit extending, around a corner at which the side surface of the first side-wall insulating film intersects the top surface of the first active region, from the top surface of the first contact liner film toward the corner.
    Type: Grant
    Filed: November 9, 2007
    Date of Patent: August 31, 2010
    Assignee: Panasonic Corporation
    Inventor: Shinji Takeoka
  • Patent number: 7750414
    Abstract: A structure comprises at least one transistor on a substrate, an insulator layer over the transistor, and an ion stopping layer over the insulator layer. The ion stopping layer comprises a portion of the insulator layer that is damaged and has either argon ion damage or nitrogen ion damage.
    Type: Grant
    Filed: May 29, 2008
    Date of Patent: July 6, 2010
    Assignee: International Business Machines Corporation
    Inventors: Huilong Zhu, Yanfeng Wang, Daewon Yang, Huajie Chen
  • Patent number: 7737505
    Abstract: A semiconductor device may include, but is not limited to, a single crystal silicon diffusion layer, a polycrystal silicon conductor, and a diffusion barrier layer. The diffusion barrier layer separates the polycrystal silicon conductor from the single crystal silicon diffusion layer. The diffusion barrier layer prevents a diffusion of at least one of silicon-interstitial and silicon-vacancy between the single crystal silicon diffusion layer and the polycrystal silicon conductor.
    Type: Grant
    Filed: September 21, 2007
    Date of Patent: June 15, 2010
    Assignee: Elpida Memory, Inc.
    Inventors: Kensuke Okonogi, Kiyonori Ohyu
  • Patent number: 7679144
    Abstract: The semiconductor device includes a silicon substrate, a device isolation insulating film dividing an active region of the silicon substrate into plural pieces, a gate electrode formed on the active region, a source/drain region which is formed in the active region on both sides of the gate electrode, and which constitutes a MOS transistor of an SRAM memory cell with the gate electrode, an interlayer insulating film formed over each of the active region and the device isolation insulating film, a first hole which is formed in the interlayer isolation insulating film, and which commonly overlaps with two adjacent active regions and the device isolation insulating film between the active regions, and a first conductive plug which is formed in the first hole, and which electrically connects the two active regions.
    Type: Grant
    Filed: November 12, 2007
    Date of Patent: March 16, 2010
    Assignee: Fujitsu Microelectronics Limited
    Inventors: Hiroshi Kudo, Kenji Ishikawa
  • Patent number: 7642605
    Abstract: A semiconductor device includes a glass substrate having a main surface, a polysilicon film formed on the main surface, having a channel region formed and having a source region and a drain region formed on opposing sides of the channel region, a gate insulating film provided so as to be in contact with the polysilicon film and containing oxygen, and a gate electrode provided in a position facing the channel region with the gate insulating film being interposed. The polysilicon film has a thickness larger than 50 nm and not larger than 150 nm. The polysilicon film contains hydrogen in a proportion not smaller than 0.5 atomic percent and not larger than 10 atomic percent. With such a structure, a semiconductor device attaining a large drain current and having a desired electric characteristic is provided.
    Type: Grant
    Filed: February 10, 2005
    Date of Patent: January 5, 2010
    Assignee: Mitsubishi Denki Kabushiki Kaisha
    Inventors: Toru Takeguchi, Kazuyuki Sugahara
  • Patent number: 7538377
    Abstract: In a cell contact pad method, a consecutive dummy cell contact pad intersecting with a cell gate electrode is formed at an outer peripheral portion of the memory cell array. The dummy cell contact pad blocks liquid and gas to intrude through a void, and prevents the cell contact pad from being decayed and having high resistivity.
    Type: Grant
    Filed: February 14, 2006
    Date of Patent: May 26, 2009
    Assignee: Elpida Memory, Inc.
    Inventor: Yoshihiro Takaishi
  • Patent number: 7495292
    Abstract: Integrated circuit devices, for example, dynamic random access memory (DRAM) devices, are provided including an integrated circuit substrate having a cell array region and a peripheral circuit region. A buried contact plug is provided on the integrated circuit substrate in the cell array region and a resistor is provided on the integrated circuit substrate in the peripheral circuit region. A first pad contact plug is provided on the buried contact plug in the cell array region and a second pad contact plug is provided on the resistor in the peripheral circuit region. An ohmic layer is provided between the first pad contact plug and the buried contact plug and between the second pad contact plug and the resistor. Related methods of fabricating integrated circuit devices are also provided.
    Type: Grant
    Filed: March 2, 2007
    Date of Patent: February 24, 2009
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Se-Hoon Oh, Jung-Hee Chung, Jae-Hyoung Choi, Jeong-Sik Choi, Sung-Tae Kim, Cha-Young Yoo
  • Patent number: 7411822
    Abstract: Memory transistors are arranged in a plurality of rows and columns. A first source/drain terminal of each memory transistor of a first column is connected to an electrically conductive conductor track in a first metallization plane, and a first source/drain terminal of each memory transistor of a second column adjacent to the first column is connected to an electrically conductive conductor track in a second metallization plane.
    Type: Grant
    Filed: November 18, 2005
    Date of Patent: August 12, 2008
    Assignee: Infineon Technologies AG
    Inventors: Michael Specht, Franz Hofmann, Ulrich Dorda, Johannes Kretz, Lars Dreeskornfeld
  • Patent number: 7319254
    Abstract: A semiconductor device having resistors in a peripheral area and fabrication method thereof are provided. A mold layer is formed on a semiconductor substrate. The mold layer is patterned to form first molding holes and a second molding hole in the mold layer. A storage node layer is formed on the mold layer as well as in the first and second molding holes. The storage node layer is patterned to form storage nodes in the first molding holes and a portion of a resistor in the second hole.
    Type: Grant
    Filed: August 2, 2004
    Date of Patent: January 15, 2008
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Dong-Hwa Kwak, Byung-Seo Kim
  • Patent number: 7208814
    Abstract: A resistive device includes a resistive region of a semiconductor material that includes a first region and a second region, wherein the first region has a higher dopant concentration than the second region, and wherein a resistance-determining width of a current path through the first region is determined by a portion of a doping boundary between the first region and the second region.
    Type: Grant
    Filed: August 20, 2004
    Date of Patent: April 24, 2007
    Assignee: Infineon Technologies AG
    Inventor: Stefan Pompl
  • Patent number: 7176533
    Abstract: Forming a semiconductor device can include forming an insulating layer on a semiconductor substrate including a conductive region thereof, wherein the insulating layer has a contact hole therein exposing a portion of the conductive region. A polysilicon contact plug can be formed in the contact hole wherein at least a portion of the polysilicon contact plug is doped with an element having a diffusion coeffient that is less than a diffusion coefficient of phosphorus (P). Related structures are also discussed.
    Type: Grant
    Filed: November 4, 2004
    Date of Patent: February 13, 2007
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Eun-Ae Chung, Myoung-Bum Lee, Young-Pil Kim, Jin-Gyun Kim, Bean-Jun Jin
  • Patent number: 7064398
    Abstract: In a full CMOS SRAM having a lateral type cell (memory cell having three partitioned wells arranged side by side in a word line extending direction and longer in the word line direction than in the bit line direction) including first and second driver MOS transistors, first and second load MOS transistors and first and second access MOS transistors, two capacitors are arranged spaced apart from each other on embedded interconnections to be storage nodes, with lower and upper cell plates cross-coupled to each other.
    Type: Grant
    Filed: December 21, 2004
    Date of Patent: June 20, 2006
    Assignee: Renesas Technology Corp.
    Inventor: Takahiro Yokoyama
  • Patent number: 7049665
    Abstract: In order to realize a dual gate CMOS semiconductor device with little leakage of boron that makes it possible to divisionally doping a p-type impurity and an n-type impurity into a polycrystalline silicon layer with one mask, a gate electrode has a high melting point metal/metallic nitride barrier/polycrystalline silicon structure. The boron is pre-doped in the polycrystalline silicon layer. The phosphorus or arsenic is doped in an n-channel area. Then, the annealing in a hydrogen atmosphere with vapor added therein is performed. As a result, the boron is segregated on the interface of the metallic nitride film and the phosphorus is segregated on the interface of the gate oxide film, for forming an n+ gate.
    Type: Grant
    Filed: February 27, 2004
    Date of Patent: May 23, 2006
    Assignee: Hitachi, Ltd.
    Inventor: Naoki Yamamoto
  • Patent number: 6953974
    Abstract: An improved EEPROM device and method for providing a lower device programming voltage is disclosed. An exemplary EEPROM device is configured with a modified drawing layer comprising one or more serrated elements configured underneath a tunneling region of the EEPROM device. The serrated elements can comprise regions having at least one acute angle structure within the active mask drawing layer configured to provide a restriction of the oxygen used to grow the gate oxide that determines the programming voltage of the EEPROM device. In addition the serrated elements can also be configured with at least two acute angle thin oxide regions configured in a staggered arrangement to allow for misalignment between the active layer and the polysilicon layer such that at least one acute angle thin oxide region is found in the tunneling region underneath the polysilicon layer of the tunneling region. As a result of a thinner gate oxide region being formed, a lower programming voltage is needed by the EEPROM device.
    Type: Grant
    Filed: August 26, 2003
    Date of Patent: October 11, 2005
    Assignee: Texas Instruments Incorporated
    Inventors: Peter A. Rathfelder, Francisco De La Moneda
  • Patent number: 6924560
    Abstract: A method and system is disclosed for an SRAM device cell having at least one device of a first semiconductor type and at lease one device of a second semiconductor type. The cell has a first device of the first type constructed as a part of a first FinFET having one or more devices of the first type, a first device of the second type whose poly region is an extension of a poly region of the first device of the first type with no contact needed to connect therebetween, wherein the two devices are constructed using a silicon-on-insulator (SOI) technology so that they are separated by an insulator region therebetween so as to minimize the distance between the two devices.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: August 2, 2005
    Assignee: Taiwan Semiconductor Manufacturing Co., Ltd.
    Inventors: Ping-Wei Wang, Chang-Ta Yang
  • Patent number: 6921962
    Abstract: A thin film resistor (60) is contained between two metal interconnect layers (40, 100) of an integrated circuit. Contact may be made to the resistor (60) through vias (95) from the metal layer (100) above the resistor (60) to both the thin film resistor (60) and the underlying metal layer (40) simultaneously. The resistor (60) may include portions of a hard mask (70) under the vias (95) to protect the resistor material (60) during the via (95) etch. This design provides increased flexibility in fabricating the resistor (60) since processes, materials, and chemicals do not have to satisfy the conditions of both the resistor (60) and the rest of the integrated circuit (especially the interconnect layer 40) simultaneously.
    Type: Grant
    Filed: December 2, 1999
    Date of Patent: July 26, 2005
    Assignee: Texas Instruments Incorporated
    Inventors: Fred D. Bailey, Stuart M. Jacobsen
  • Patent number: 6894365
    Abstract: A resistance element of a semiconductor device includes a first resistance pattern and a second resistance pattern formed adjacent to the first resistance pattern at a lower level, wherein the second resistance pattern is defined by the first resistance pattern in a self-aligned relationship and connected to the first resistance pattern in series.
    Type: Grant
    Filed: November 1, 1999
    Date of Patent: May 17, 2005
    Assignee: Ricoh Company, Ltd.
    Inventor: Yoshinori Ueda
  • Patent number: 6885070
    Abstract: In a semiconductor memory device including memory cells and a peripheral circuit unit, a memory cell has a first gate structure formed on a semiconductor substrate; a first impurity region of a first conductive type formed in the substrate on a first side of the gate structure; and a second impurity region formed in the substrate on a second side of the gate structure, the second impurity region including: a third impurity region of the first conductive type, a fourth impurity region of the first conductive type between the third impurity region and the second side of the gate structure, and a halo ion region of a second conductive type formed adjacent to the fourth impurity region.
    Type: Grant
    Filed: September 30, 2002
    Date of Patent: April 26, 2005
    Assignee: Hyundai Electronics Industries Co., Ltd.
    Inventors: Sang-Bai Yi, Jae-Min Yu, Sung-Chul Lee
  • Patent number: 6882015
    Abstract: A decoupling capacitor is provided for a semiconductor device and may include a first low dielectric insulator layer and a low resistance conductor formed into at least two interdigitized patterns on the surface of the first low dielectric insulator in a single interconnect plane. A high dielectric constant material may be provided between the two patterns. A circuit for testing a plurality of these capacitors is also provided which includes a charge monitoring circuit, a coupling circuit and a control circuit.
    Type: Grant
    Filed: September 12, 2003
    Date of Patent: April 19, 2005
    Assignee: International Business Machines Corporation
    Inventors: Kerry Bernstein, John A. Bracchitta, William J. Cote, Tak H. Ning, Wilbur D. Pricer
  • Patent number: 6870231
    Abstract: SRAM cells and devices are provided. The SRAM cells may share connections with neighboring cells, including ground, power supply voltage and/or bit line connections. SRAM cells and devices are also provided that include first and second active regions disposed at a semiconductor substrate. Parallel first and second gate electrodes cross over the first and second active regions. One end of the first active region adjacent to the first gate electrode is electrically connected to the second active region adjacent to the first gate electrode through a first node line parallel to the first gate electrode, and the other end of the first active region adjacent to the second gate electrode is electrically connected to the second active region adjacent to the second gate electrode through a second node line parallel to the second gate electrode.
    Type: Grant
    Filed: November 12, 2002
    Date of Patent: March 22, 2005
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Sung-Bong Kim, Soon-Moon Jung, Jae-Kyun Park
  • Patent number: 6867462
    Abstract: A trench isolation region separating active regions in which MISFETs are formed includes: side insulating films covering the sides of a trench; polycrystalline semiconductor layers of a first conductivity type covering the respective sides of the side insulating films; and a polycrystalline semiconductor layer of a second conductivity type filling a gap between the polycrystalline semiconductor layers of the first conductivity type. Two pn junctions extending along the depth direction of the trench are formed between each of the polycrystalline semiconductor layers of the first conductivity type and the polycrystalline semiconductor layer of the second conductivity type. Upon application of a voltage between the active regions, a depletion layer expands in one of the pn junctions, so that the voltage is also partly applied to the depletion layer. As a result, the concentration of electric field in the side insulating films is relaxed.
    Type: Grant
    Filed: August 8, 2003
    Date of Patent: March 15, 2005
    Assignee: Matsushita Electric Industrial Co., Ltd.
    Inventors: Satoshi Nakazawa, Satoru Ouchi, Yasuhiro Uemoto
  • Patent number: 6822288
    Abstract: A trench MOSFET transistor device and a method of making the same.
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: November 23, 2004
    Assignee: General Semiconductor, Inc.
    Inventors: Fwu-Iuan Hshieh, Koon Chong So, John E. Amato, Yan Man Tsui
  • Patent number: 6815839
    Abstract: The semiconductor memory device includes two PMOS transistors that make the SRAM memory cell. The gate insulating films of these PMOS transistors are formed using a material that has a high permittivity. As a result, the capacitance of memory nodes is increased, and the probability of soft errors is lowered.
    Type: Grant
    Filed: September 24, 2003
    Date of Patent: November 9, 2004
    Assignee: Renesas Technology Corp.
    Inventors: Koji Nii, Motoshige Igarashi
  • Patent number: 6812515
    Abstract: A non-volatile memory cell includes a first insulating layer over a substrate region, and a floating gate. The floating gate includes a first polysilicon layer over the first insulating layer and a second polysilicon layer over and in contact with the first polysilicon layer. The first polysilicon layer has a predetermined doping concentration and the second polysilicon layer has a doping concentration which decreases in a direction away from an interface between the first and second polysilicon layers. A second insulating layer overlies and is in contact with the second polysilicon layer. A control gate includes a third polysilicon layer over and in contact with the second insulating layer, and a fourth polysilicon layer over and in contact with the third polysilicon layer. The fourth polysilicon layer has a predetermined doping concentration, and the third polysilicon layer has a doping concentration which decreases in a direction away from an interface between the third and fourth polysilicon layers.
    Type: Grant
    Filed: November 26, 2001
    Date of Patent: November 2, 2004
    Assignee: Hynix Semiconductor, Inc.
    Inventors: Peter Rabkin, Hsingya Arthur Wang, Kai-Cheng Chou
  • Patent number: RE41670
    Abstract: A 4-T SRAM cell in which two layers of permanent SOG (with an intermediate oxide layer) are used to provide planarization between the first and topmost poly layers.
    Type: Grant
    Filed: January 20, 2000
    Date of Patent: September 14, 2010
    Assignee: STMicroelectronics, Inc.
    Inventors: Loi Nguyen, Ravishankar Sundaresan