Polysilicon Resistor Patents (Class 257/380)
  • Publication number: 20120181622
    Abstract: It is intended to achieve a sufficiently-small SRAM cell area and a stable operation margin in an E/R type 4T-SRAM comprising a vertical transistor SGT. In a static type memory cell made up using four MOS transistors and two load resistor elements, each of the MOS transistor constituting the memory cell is formed on a planar silicon layer formed on a buried oxide film, to have a structure where a drain, a gate and a source are arranged in a vertical direction, wherein the gate is formed to surround a pillar-shaped semiconductor layer, and each of the load resistor elements is made of polysilicon and formed on the planar silicon layer.
    Type: Application
    Filed: March 12, 2012
    Publication date: July 19, 2012
    Inventors: Fujio Masuoka, Shintaro Arai
  • Patent number: 8193604
    Abstract: A semiconductor device includes an IPD structure, a first semiconductor die mounted to the IPD structure with a flipchip interconnect, and a plurality of first conductive posts that are disposed adjacent to the first semiconductor die. The semiconductor device further includes a first molding compound that is disposed over the first conductive posts and first semiconductor die, a core structure bonded to the first conductive posts over the first semiconductor die, and a plurality of conductive TSVs disposed in the core structure. The semiconductor device further includes a plurality of second conductive posts that are disposed over the core structure, a second semiconductor die mounted over the core structure, and a second molding compound disposed over the second conductive posts and the second semiconductor die. The second semiconductor die is electrically connected to the core structure.
    Type: Grant
    Filed: November 19, 2010
    Date of Patent: June 5, 2012
    Assignee: STATS ChipPAC, Ltd.
    Inventors: Yaojian Lin, Jianmin Fang, Kang Chen, Haijing Cao
  • Publication number: 20120126334
    Abstract: The present disclosure provides a semiconductor device that includes a substrate having a resistor element region and a transistor region, a floating substrate in the resistor element region of the substrate, an epitaxial layer disposed over the floating substrate, and an active region defined in the epitaxial layer, the active region surrounded by isolation structures. The device further includes a resistor block disposed over an isolation structure, and a dielectric layer disposed over the resistor block, the isolation structures, and the active region. A method of fabricating such semiconductor devices is also provided.
    Type: Application
    Filed: November 24, 2010
    Publication date: May 24, 2012
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Ru-Yi Su, Chia-Chin Shen, Yu Chuan Liang, Fu-Chih Yang, Chun Lin Tsai, Chih-Chang Cheng, Ruey-Hsin Liu
  • Publication number: 20120126335
    Abstract: A method and structure to scale metal gate height in high-k/metal gate transistors. A method includes forming a dummy gate and at least one polysilicon feature, all of which are formed from a same polysilicon layer and wherein the dummy gate is formed over a gate metal layer associated with a transistor. The method also includes selectively removing the dummy gate while protecting the at least one polysilicon feature. The method further includes forming a gate contact on the gate metal layer to thereby form a metal gate having a height that is less than half a height of the at least one polysilicon feature.
    Type: Application
    Filed: February 2, 2012
    Publication date: May 24, 2012
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Michael P. CHUDZIK, Ricardo A. DONATON, William K. HENSON, Yue LIANG
  • Patent number: 8174355
    Abstract: A resistor R1 formed by forming a first resistor layer 5a of 20 nm thickness including a tantalum nitride film at a concentration of nitrogen of less than 30 at % and a second resistor layer of 5 nm thickness including a tantalum nitride film at a concentration of nitrogen of 30 at % or more successively by a reactive DC sputtering method using tantalum as a sputtering target material and using a gas mixture of argon and nitrogen as a sputtering gas, and then fabricating the first and the second resistor layers, in which the resistance change ratio of the resistor can be suppressed to less than 1% even when a thermal load is applied in the interconnection step, by the provision of the upper region at a concentration of nitrogen of 30 at % or more.
    Type: Grant
    Filed: July 3, 2008
    Date of Patent: May 8, 2012
    Assignee: Hitachi, Ltd.
    Inventors: Kenichi Takeda, Tsuyoshi Fujiwara, Toshinori Imai
  • Publication number: 20120098071
    Abstract: An integrated circuit containing CMOS gates and a counterdoped polysilicon gate material resistor which has a body region that is implanted concurrently with the NSD layers of the NMOS transistors of the CMOS gates and concurrently with the PSD layers of the PMOS transistors of the CMOS gates, and has a resistor silicide block layer over the body region which is formed of separate material from the sidewall spacers on the CMOS gates. A process of forming an integrated circuit containing CMOS gates and a counterdoped polysilicon gate material resistor which implants the body region of the resistor concurrently with the NSD layers of the NMOS transistors of the CMOS gates and concurrently with the PSD layers of the PMOS transistors of the CMOS gates, and forms a resistor silicide block layer over the body region of separate material from the sidewall spacers on the CMOS gates.
    Type: Application
    Filed: October 21, 2011
    Publication date: April 26, 2012
    Applicant: TEXAS INSTRUMENTS INCORPORATED
    Inventors: Rajni J. Aggarwal, Jau-Yuann Yang
  • Patent number: 8154085
    Abstract: A nonvolatile semiconductor memory includes memory cell transistors and resistors. Each memory cell transistor has source/drain diffusion layers provided in a semiconductor substrate, a first gate insulating film located between the source/drain diffusion layers, a floating gate electrode layer located on the first gate insulating film, a first inter-gate insulating film located on the floating gate electrode layer, a control gate electrode layer located on the first inter-gate insulating layer, and a first low-resistance layer located on the control gate electrode layer. Each resistor has a second gate insulating film located on the semiconductor substrate, a first electrode layer located on the second gate insulating film, a second inter-gate insulating film located on the first electrode layer, a second electrode layer located on the second inter-gate insulating film, a second low-resistance layer located on the second electrode layer, and a contact plug connected to the second low-resistance layer.
    Type: Grant
    Filed: May 17, 2007
    Date of Patent: April 10, 2012
    Assignee: Kabushiki Kaisha Toshiba
    Inventor: Shigeru Ishibashi
  • Patent number: 8154086
    Abstract: It is intended to achieve a sufficiently-small SRAM cell area and a stable operation margin in an E/R type 4T-SRAM comprising a vertical transistor SGT. In a static type memory cell made up using four MOS transistors and two load resistor elements, each of the MOS transistor constituting the memory cell is formed on a planar silicon layer formed on a buried oxide film, to have a structure where a drain, a gate and a source are arranged in a vertical direction, wherein the gate is formed to surround a pillar-shaped semiconductor layer, and each of the load resistor elements is made of polysilicon and formed on the planar silicon layer.
    Type: Grant
    Filed: February 11, 2010
    Date of Patent: April 10, 2012
    Assignee: Unisantis Electronics Singapore Pte Ltd.
    Inventors: Fujio Masuoka, Shintaro Arai
  • Publication number: 20120074505
    Abstract: Techniques related to 3D integrated circuits formed on a single wafer are disclosed. According to one embodiment, an integrated circuit comprises a first device forming a first projection area on a wafer and a second device forming a second projection area on the wafer. The first projection area overlaps with the second projection area partially or completely. The area being shared between the two devices refers to the partial or complete overlapping of the projection areas of the two devices. In one embodiment, two or more devices in different layers of the integrated circuit or two or more devices at different depths in a same layer of the integrated circuit may share an area on the same wafer in a certain manner. Thereby, the area of the chip is saved and the chip cost of the integrated circuit is significantly reduced.
    Type: Application
    Filed: December 5, 2011
    Publication date: March 29, 2012
    Inventors: Zhao Wang, Wenbo Tian, Hang Yin
  • Patent number: 8129815
    Abstract: A high-voltage device structure comprises a resistor coupled to a tap transistor that includes a JFET in a configuration wherein a voltage provided at a terminal of the JFET is substantially proportional to an external voltage when the external voltage is less than a pinch-off voltage of the JFET. The voltage provided at the terminal being substantially constant when the external voltage is greater than the pinch-off voltage. One end of the resistor is substantially at the external voltage when the external voltage is greater than the pinch-off voltage. When the external voltage is negative, the resistor limits current injected into the substrate. It is emphasized that this abstract is provided to comply with the rules requiring an abstract that will allow a searcher or other reader to quickly ascertain the subject matter of the technical disclosure.
    Type: Grant
    Filed: August 20, 2009
    Date of Patent: March 6, 2012
    Assignee: Power Integrations, Inc
    Inventors: Sujit Banerjee, Vijay Parthasarathy
  • Publication number: 20120049291
    Abstract: In sophisticated semiconductor devices, resistors may be provided together with high-k metal gate electrode structures by using a polycrystalline silicon material without requiring a deterioration of the crystalline nature and thus conductivity of a conductive metal-containing cap material that is used in combination with the high-k dielectric gate material. In this manner, superior uniformity of the resistance values may be obtained, while at the same time reducing the overall process complexity.
    Type: Application
    Filed: July 18, 2011
    Publication date: March 1, 2012
    Applicant: GLOBALFOUNDRIES INC.
    Inventors: Thilo Scheiper, Steven Langdon
  • Patent number: 8097518
    Abstract: There is provided a semiconductor device including a semiconductor substrate (10), a high concentration diffusion region (22) formed within the semiconductor substrate (10), a first low concentration diffusion region (24) that has a lower impurity concentration than the high concentration diffusion region (22) and is provided under the high concentration diffusion region (22), and a bit line(30) that includes the high concentration diffusion region (22) and the first low concentration diffusion region (24) and serves as a source region and a drain region, and a manufacturing method therefor. Reduction of source-drain breakdown voltage of the transistor is suppressed, and a low-resistance bit line can be formed. Thus, a semiconductor device that can miniaturize memory cells and a manufacturing method therefor can be provided.
    Type: Grant
    Filed: October 6, 2010
    Date of Patent: January 17, 2012
    Assignee: Spansion LLC
    Inventor: Masatomi Okanishi
  • Patent number: 8097520
    Abstract: A passive device structure includes an unpatterned metal gate layer formed in a passive device region of a semiconductor device; an insulator layer formed upon the unpatterned metal gate layer; a semiconductor layer formed upon the insulator layer; and one or more metal contact regions formed in the semiconductor layer; wherein the insulator layer prevents the metal gate layer as serving as a leakage current path for current flowing through a passive device defined by the semiconductor layer and the one or more metal contact regions.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: January 17, 2012
    Assignee: International Business Machines Corporation
    Inventors: Huiming Bu, Satya N. Chakravarti, Dechao Guo, Keith Kwong Hon Wong
  • Patent number: 8084314
    Abstract: A first insulation film is provided on a semiconductor substrate. A high resistance element formed from polysilicon is provided on the first insulation film. A second insulation film is provided on the high resistance element. A hydrogen diffusion preventing film having a hydrogen diffusion coefficient smaller than that of the second insulation film is provided on the second insulation film. The hydrogen diffusion preventing film covers a part of the high resistance element.
    Type: Grant
    Filed: August 11, 2010
    Date of Patent: December 27, 2011
    Assignee: Panasonic Corporation
    Inventors: Hidenori Iwadate, Takeshi Kobiki
  • Publication number: 20110303989
    Abstract: Methods for fabricating a semiconductor device are disclosed. In an example, a method includes forming an isolation region on a substrate, wherein the isolation region extends a depth into the substrate from a substrate surface; forming a recess in the isolation region, wherein the recess is defined by a concave surface of the isolation region; and forming a first gate structure over the substrate surface and a second gate structure over the concave surface of the isolation region.
    Type: Application
    Filed: August 23, 2011
    Publication date: December 15, 2011
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Harry Chuang, Kong-Beng Thei
  • 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: 8044469
    Abstract: A semiconductor device and associated methods, the semiconductor device including a semiconductor substrate with a first well region, a first gate electrode disposed on the first well region, and a first N-type capping pattern, a first P-type capping pattern, and a first gate dielectric pattern disposed between the first well region and the first gate electrode.
    Type: Grant
    Filed: September 11, 2009
    Date of Patent: October 25, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Hongbae Park, Hagju Cho, Sunghun Hong, Sangjin Hyun, Hoonjoo Na, Hyung-seok Hong
  • Patent number: 8026556
    Abstract: A method of manufacturing a resistive divider circuit, includes providing a silicon body having a plurality of opposing pairs of intermediate taps extending therefrom. Each tap comprises a thin silicon stem supporting a relatively wider silicon platform. A silicidation protection (SIPROT) layer is deposited over the body and intermediate taps and then patterned to expose the platform. A silicidation process is performed to silicidate the platform to form a contact pad of relatively low resistivity.
    Type: Grant
    Filed: April 19, 2007
    Date of Patent: September 27, 2011
    Assignee: NXP B.V.
    Inventor: Andy C. Negoi
  • 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
  • Publication number: 20110198705
    Abstract: According to one disclosed embodiment, a method for fabricating an integrated resistor in a semiconductor die includes forming a high-k dielectric over a substrate and a metal layer over the high-k dielectric, where the metal layer forms a resistive element of the integrated resistor. The method further includes forming an un-doped polysilicon layer over the metal layer, where a portion of the un-doped polysilicon layer can be selectively doped and used to form a conductive path to the resistive element of the integrated resistor. In one embodiment, the metal layer comprises a gate metal. In one embodiment, the integrated resistor is formed substantially concurrently with one or more transistors without requiring additional fabrication process steps. One disclosed embodiment is an integrated resistor formed according to the disclosed method.
    Type: Application
    Filed: February 18, 2010
    Publication date: August 18, 2011
    Applicant: BROADCOM CORPORATION
    Inventors: Xiangdong Chen, Wei Xia
  • Patent number: 7994576
    Abstract: A method for fabricating metal gate transistor and resistor is disclosed. The method includes the steps of: providing a substrate having a transistor region and a resistor region; forming a shallow trench isolation in the substrate of the resistor region; forming a tank in the shallow trench isolation of the resistor region; forming at least one gate in the transistor region and a resistor in the tank of the resistor region; and transforming the gate into a metal gate transistor.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: August 9, 2011
    Assignee: United Microelectronics Corp.
    Inventors: Chih-Yu Tseng, Chien-Ting Lin, Kun-Szu Tseng, Cheng-Wen Fan, Victor-Chiang Liang
  • Publication number: 20110169100
    Abstract: A semiconductor device includes: a first MIS transistor of a first conductivity type having a first active region as a region of a semiconductor substrate surrounded by an element isolation region formed in an upper portion of the semiconductor substrate, a first gate insulating film having a first high dielectric film formed on the first active region, and a first gate electrode formed on the first gate insulating film; and a resistance element having a second high dielectric film formed on the element isolation region and a resistance layer made of silicon formed on the second high dielectric film. The first high dielectric film and the second high dielectric film include the same high dielectric material, and the first high dielectric film includes a first adjustment metal, but the second high dielectric film does not include the first adjustment metal.
    Type: Application
    Filed: January 12, 2011
    Publication date: July 14, 2011
    Inventors: Hiroji SHIMIZU, Yoshihiro Sato, Hideyuki Arai, Takayuki Yamada, Tsutomu Oosuka
  • Publication number: 20110163389
    Abstract: A precision low capacitance resistor is formed, e.g., in a bulk substrate. An embodiment includes forming a source/drain region on a substrate, patterning a portion of the source/drain region to form segments, etching the segments to substantially separate an upper section of each segment from a lower section of each segment, and filling the space between the segments with an insulating material. The resulting structure maintains electrical connection between the segments at end pads, but separates the resistor segments from the bottom substrate, thereby avoiding capacitive coupling with the substrate.
    Type: Application
    Filed: January 7, 2010
    Publication date: July 7, 2011
    Applicant: GLOBALFOUNDRIES Inc.
    Inventor: Steven R. Soss
  • Patent number: 7973371
    Abstract: A static random access memory (SRAM) cell includes a first well region of a first conductivity type, a second well region of the first conductivity type, formed in a location different from a location where the first well region is formed, and a third well region of a second conductivity type, which is located between the first well region and the second well region. The memory cell further includes a first tap diffused layer of the first conductivity type for supplying a potential to the first well region, a second tap diffused layer of the first conductivity type for supplying the potential to the second well region, the first and second tap diffused layers being arranged substantially on a diagonal line in the layout of the SRAM cell, and a metal interconnection connected to the first and second tap diffused layers, the metal interconnection passing on the third well region in the SRAM cell.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: July 5, 2011
    Assignee: Renesas Electronics Corporation
    Inventors: Hiroshi Furuta, Junji Monden, Ichiro Mizuguchi
  • Patent number: 7964469
    Abstract: In a method of manufacturing a semiconductor device, a first oxide film is formed in a convex shape on a field insulating film, a polycrystalline silicon film is formed on the first oxide film, and impurities are introduced into the polycrystalline silicon film. The polycrystalline silicon film into which the impurity is introduced is patterned so that a portion above the convex-shaped first oxide film becomes a resistance region of the resistor. A second oxide film is then formed on the patterned polycrystalline silicon film followed by the formation of a third oxide film on the second oxide film. The third oxide film and parts of the second oxide film and the polycrystalline silicon film are then removed to form a planarized surface including surface portions of the second oxide film and the polycrystalline silicon film.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: June 21, 2011
    Assignee: Seiko Instruments Inc.
    Inventor: Yuichiro Kitajima
  • Publication number: 20110133290
    Abstract: A semiconductor device of high reliability and element-integrating performance, has a substrate (silicon substrate), a first trench made in the silicon substrate, a passive element layer buried in the first trench, and a first insulating film (silicon nitride film) arranged between the first trench and the passive element layer. The passive element layer projects upwardly relative to the substrate, and so too preferably the adjacent insulating film. An active element is formed such that its gate electrode, which is preferably fully silicided, has an upper end at a level higher than the upper surface of the passive element film.
    Type: Application
    Filed: December 6, 2010
    Publication date: June 9, 2011
    Applicant: Renesas Electronics Corporation
    Inventor: Satoru MURAMATSU
  • 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: 7932146
    Abstract: A method for fabricating metal gate transistors and a polysilicon resistor is disclosed. First, a substrate having a transistor region and a resistor region is provided. A polysilicon layer is then formed on the substrate to cover the transistor region and the resistor region of the substrate. Next, a portion of the polysilicon layer disposed in the resistor is removed, and the remaining polysilicon layer is patterned to create a step height between the surface of the polysilicon layer disposed in the transistor region and the surface of the polysilicon layer disposed in the resistor region.
    Type: Grant
    Filed: March 20, 2008
    Date of Patent: April 26, 2011
    Assignee: United Microelectronics Corp.
    Inventors: Yi-Wen Chen, Li-Wei Cheng, Che-Hua Hsu, Chih-Hao Yu, Cheng-Hsien Chou, Chien-Ming Lai, Tian-Fu Chiang, Chien-Ting Lin, Guang-Hwa Ma
  • 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: 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
  • Publication number: 20110073957
    Abstract: A resistor is disclosed. The resistor is disposed on a substrate, in which the resistor includes: a dielectric layer disposed on the substrate; a polysilicon structure disposed on the dielectric layer; two primary resistance structures disposed on the dielectric layer and at two ends of the polysilicon structure; and a plurality of secondary resistance structures disposed on the dielectric layer and interlaced with the polysilicon structures.
    Type: Application
    Filed: September 25, 2009
    Publication date: March 31, 2011
    Inventors: Kai-Ling Chiu, Victor-Chiang Liang, Chih-Yu Tseng, Kun-Szu Tseng, Cheng-Wen Fan, Hsin-Kai Chiang, Chih-Chen Hsueh
  • Patent number: 7906815
    Abstract: By forming a direct contact structure connecting, for instance, a polysilicon line with an active region on the basis of an increased amount of metal silicide by removing the sidewall spacers prior to the silicidation process, a significantly increased etch selectivity may be achieved during the contact etch stop layer opening. Hence, undue etching of the highly doped silicon material of the active region would be suppressed. Additionally or alternatively, an appropriately designed test structure is disclosed, which may enable the detection of electrical characteristics of contact structures formed in accordance with a specified manufacturing sequence and on the basis of specific design criteria.
    Type: Grant
    Filed: March 27, 2008
    Date of Patent: March 15, 2011
    Assignee: Advanced Micro Devices, Inc.
    Inventors: Carsten Peters, Ralf Richter, Kai Frohberg
  • Publication number: 20110057267
    Abstract: The present disclosure provides an integrated circuit. The integrated circuit includes a semiconductor substrate; and a passive polysilicon device disposed over the semiconductor substrate. The passive polysilicon device further includes a polysilicon feature; and a plurality of electrodes embedded in the polysilicon feature.
    Type: Application
    Filed: September 4, 2009
    Publication date: March 10, 2011
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Harry Hak-Lay Chuang, Kong-Beng Thei, Sheng-Chen Chung, Chiung-Han Yeh, Lee-Wee Teo, Yu-Ying Hsu, Bao-Ru Young
  • Publication number: 20110057268
    Abstract: A semiconductor device includes a resistive element and a MISFET. The resistive element includes a first conductive film formed on the semiconductor substrate and containing a metal, a second conductive film formed on the first conductive film and containing silicon, and an insulating film formed between the first conductive film and the second conductive film.
    Type: Application
    Filed: August 10, 2010
    Publication date: March 10, 2011
    Inventor: Tsuyoshi MAKITA
  • Publication number: 20110031559
    Abstract: A semiconductor device is formed by providing a semiconductor substrate comprising a cell region, a peripheral circuit region, and a resistor region, forming a device isolation layer on the semiconductor substrate so as to define an active region, forming a first insulating layer and a polysilicon pattern on the active region of the peripheral circuit region, forming a second insulating layer, a charge storage layer, and a third insulating layer on the active region of the cell region, farming a conductive layer on the semiconductor substrate, and patterning the conductive layer to form conductive patterns on the third insulating layer of the cell region, the polysilicon pattern of the active region of peripheral circuit region, and the semiconductor substrate of the resistor region, respectively.
    Type: Application
    Filed: October 15, 2010
    Publication date: February 10, 2011
    Inventors: Jong-Sun Sel, Jung-Dal Choi
  • Patent number: 7884442
    Abstract: An integrated circuit resistor is provided that comprises a mesa 14 between electrical contacts 16 and 18. The electrical resistance between electrical contacts 16 and 18 is selectively increased through the formation of recesses 20 and 22 in the mesa 14. The size of recesses 20and 22 can be used to tune the value of the electrical resistance between contacts 16 and 18.
    Type: Grant
    Filed: February 26, 2007
    Date of Patent: February 8, 2011
    Assignee: Raytheon Company
    Inventors: David D. Heston, Jon E. Mooney
  • Publication number: 20100327370
    Abstract: The present invention discloses a method comprising: forming a sacrificial polysilicon gate (of a transistor) and a polysilicon resistor; and replacing said sacrificial polysilicon gate (of said transistor) with a metal gate while covering said polysilicon resistor.
    Type: Application
    Filed: June 26, 2009
    Publication date: December 30, 2010
    Inventors: Chia-Hong Jan, Jeng-Ya Yeh
  • Publication number: 20100320544
    Abstract: A method for fabricating metal gate transistor and resistor is disclosed. The method includes the steps of: providing a substrate having a transistor region and a resistor region; forming a shallow trench isolation in the substrate of the resistor region; forming a tank in the shallow trench isolation of the resistor region; forming at least one gate in the transistor region and a resistor in the tank of the resistor region; and transforming the gate into a metal gate transistor.
    Type: Application
    Filed: June 22, 2009
    Publication date: December 23, 2010
    Inventors: Chih-Yu Tseng, Chien-Ting Lin, Kun-Szu Tseng, Cheng-Wen Fan, Victor-Chiang Liang
  • Patent number: 7855422
    Abstract: A semiconductor device includes a transistor, a capacitor and a resistor wherein the capacitor includes a doped polysilicon layer to function as a bottom conductive layer with a salicide block (SAB) layer as a dielectric layer covered by a Ti/TiN layer as a top conductive layer thus constituting a single polysilicon layer metal-insulator-polysilicon (MIP) structure. While the high sheet rho resistor is also formed on the same single polysilicon layer with differential doping of the polysilicon layer.
    Type: Grant
    Filed: May 31, 2006
    Date of Patent: December 21, 2010
    Assignee: Alpha & Omega Semiconductor, Ltd.
    Inventors: YongZhong Hu, Sung-Shan Tai
  • Publication number: 20100295133
    Abstract: The resistor of a semiconductor device comprises a semiconductor substrate comprising isolation layers and active regions, a gate insulating layer and a first polysilicon layer formed over the active region, a second polysilicon layer separated into a first pattern formed on the isolation layer, and a second pattern formed over the first polysilicon layer and higher than the first pattern, a first interlayer dielectric layer covering the first pattern over the isolation layer, a second interlayer dielectric layer formed over the first interlayer dielectric layer, contact holes exposing the first pattern in the first and second interlayer dielectric layers, and contact plugs filling the respective contact holes and coupled to the first pattern.
    Type: Application
    Filed: May 4, 2010
    Publication date: November 25, 2010
    Applicant: HYNIX SEMICONDUCTOR INC.
    Inventor: Jum Soo Kim
  • Publication number: 20100289087
    Abstract: A semiconductor substrate with an active element formed in the semiconductor substrate, an element isolating insulating film formed around the active element and semiconductor substrate, a polysilicon resistance element formed over the element isolating insulating film with terminal areas and a resistance portion formed between the terminal areas, the polysilicon resistance element having plural reticulations which have the same shapes and the same size.
    Type: Application
    Filed: May 13, 2010
    Publication date: November 18, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventor: Jun Hasegawa
  • Publication number: 20100237435
    Abstract: A method and structure to scale metal gate height in high-k/metal gate transistors. A method includes forming a dummy gate and at least one polysilicon feature, all of which are formed from a same polysilicon layer and wherein the dummy gate is formed over a gate metal layer associated with a transistor. The method also includes selectively removing the dummy gate while protecting the at least one polysilicon feature. The method further includes forming a gate contact on the gate metal layer to thereby form a metal gate having a height that is less than half a height of the at least one polysilicon feature.
    Type: Application
    Filed: March 2, 2010
    Publication date: September 23, 2010
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Michael P. Chudzik, Ricardo A. Donaton, William K. Henson, Yue Liang
  • Patent number: 7795701
    Abstract: A first insulation film is provided on a semiconductor substrate. A high resistance element formed from polysilicon is provided on the first insulation film. A second insulation film is provided on the high resistance element. A hydrogen diffusion preventing film having a hydrogen diffusion coefficient smaller than that of the second insulation film is provided on the second insulation film. The hydrogen diffusion preventing film covers a part of the high resistance element.
    Type: Grant
    Filed: March 11, 2008
    Date of Patent: September 14, 2010
    Assignee: Panasonic Corporation
    Inventors: Hidenori Iwadate, Takeshi Kobiki
  • Patent number: 7754558
    Abstract: An electrical resistance is produced in a semiconductor device by first providing a semiconductor resistor structure that includes a semiconductor resistor having formed thereon a native oxide layer. A portion of the native oxide layer that overlies a corresponding top surface portion of the semiconductor resistor is removed, in order to expose the top surface portion of the semiconductor resistor. Metal is deposited on the exposed top surface portion of the semiconductor resistor. A chemical reaction is effectuated in order to reduce the likelihood of metal reacting with the underlying silicon on any portion of the semiconductor resistor other than the top surface portion thereof. The chemical reaction can be an oxidation reaction that produces on the semiconductor resistor structure an oxide layer other than the native oxide layer and substantially thicker than the native oxide layer.
    Type: Grant
    Filed: August 3, 2005
    Date of Patent: July 13, 2010
    Assignee: National Semiconductor Corporation
    Inventors: Reshmi Mitra, Scott Ruby, Sergai Drizlikh, Thomas Francis, Robert Tracy
  • Publication number: 20100084702
    Abstract: A nonvolatile semiconductor memory device comprises a memory cell configured to store data and a resistor element provided around the memory cell. The memory cell includes a charge storage layer provided above a substrate, a first semiconductor layer formed on a top surface of the charge storage layer via an insulating layer, and a first low resistive layer formed on a top surface of the first semiconductor layer and having resistance lower than that of the first semiconductor layer. The resistor element includes a second semiconductor layer formed on the same layer as the first semiconductor layer, and a second low resistive layer formed on the same layer as the first low resistive layer and on a top surface of the second semiconductor layer, having resistance lower than that of the second semiconductor layer. The second semiconductor layer is formed to extend in a first direction parallel to the substrate.
    Type: Application
    Filed: September 22, 2009
    Publication date: April 8, 2010
    Applicant: KABUSHIKI KAISHA TOSHIBA
    Inventors: Koichi Fukuda, Rieko Tanaka, Takumi Abe
  • Patent number: 7691717
    Abstract: A polysilicon containing resistor includes: (1) a p dopant selected from the group consisting of boron and boron difluoride; and (2) an n dopant selected from the group consisting of arsenic and phosphorus. Each of the p dopant and the n dopant has a dopant concentration from about 1e18 to about 1e21 dopant atoms per cubic centimeter. A method for forming the polysilicon resistor uses corresponding implant doses from about 1e14 to about 1e16 dopant ions per square centimeter. The p dopant and the n dopant may be provided simultaneously or sequentially. The method provides certain polysilicon resistors with a sheet resistance percentage standard deviation of less than about 1.5%, for a polysilicon resistor having a sheet resistance from about 100 to about 5000 ohms per square.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: April 6, 2010
    Assignee: International Business Machines Corporation
    Inventors: Anil K. Chinthakindi, Douglas D. Coolbaugh, Ebenezer E. Eshun, John E. Florkey, Robert M. Rassel, Kunal Vaed
  • Patent number: 7692251
    Abstract: Disclosed herein is a transistor for a semiconductor device and a method of forming the same. According to the present invention, a novel transistor structure combining a plane channel transistor and a fin-type channel transistor formed on the semiconductor substrate is provided to secure a sufficient channel width as compared to that of the plane channel transistor, thereby satisfying drive current regulated for the transistor.
    Type: Grant
    Filed: November 23, 2005
    Date of Patent: April 6, 2010
    Assignee: Hynix Semiconductor Inc.
    Inventors: Sung Woong Chung, Sang Don Lee
  • Publication number: 20100059823
    Abstract: A semiconductor device is provided which includes a semiconductor substrate, an isolation structure formed in the substrate for isolating an active region of the substrate, the isolation structure being formed of a first material, an active device formed in the active region of the substrate, the active device having a high-k dielectric and metal gate, and a passive device formed in the isolation structure, the passive device being formed of a second material different from the first material and having a predefined resistivity.
    Type: Application
    Filed: April 30, 2009
    Publication date: March 11, 2010
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Sheng-Chen Chung, Kong-Beng Thei, Harry Chuang
  • Publication number: 20100052072
    Abstract: A semiconductor device and method for fabricating a semiconductor device is disclosed. The method includes providing semiconductor substrate having a first region and a second region, forming a high-k dielectric layer over the semiconductor substrate, forming a capping layer over the high-k dielectric layer, forming a metal layer over the capping layer, removing the metal layer and capping layer in the second region, forming a polysilicon layer over the metal layer in the first region and over the high-k dielectric layer in the second region, and forming an active device with the metal layer in the first region and forming a passive device without the metal layer in the second region.
    Type: Application
    Filed: February 9, 2009
    Publication date: March 4, 2010
    Applicant: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.
    Inventors: Chii-Horng Li, Po-Nien Chen, Chung-Hau Fei, Chien-Liang Chen, Wen-Chih Yang, Harry Chuang
  • 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