TW465023B - Method of increasing trench density for semiconductor devices - Google Patents

Method of increasing trench density for semiconductor devices Download PDF

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Publication number
TW465023B
TW465023B TW089124927A TW89124927A TW465023B TW 465023 B TW465023 B TW 465023B TW 089124927 A TW089124927 A TW 089124927A TW 89124927 A TW89124927 A TW 89124927A TW 465023 B TW465023 B TW 465023B
Authority
TW
Taiwan
Prior art keywords
trench
width
layer
trenches
platform
Prior art date
Application number
TW089124927A
Other languages
English (en)
Chinese (zh)
Inventor
Gordon K Madson
Joelle Sharp
Original Assignee
Fairfield Semiconductor Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fairfield Semiconductor Corp filed Critical Fairfield Semiconductor Corp
Application granted granted Critical
Publication of TW465023B publication Critical patent/TW465023B/zh

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Classifications

    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D30/00—Field-effect transistors [FET]
    • H10D30/60—Insulated-gate field-effect transistors [IGFET]
    • H10D30/64—Double-diffused metal-oxide semiconductor [DMOS] FETs
    • H10D30/66—Vertical DMOS [VDMOS] FETs
    • H10D30/668—Vertical DMOS [VDMOS] FETs having trench gate electrodes, e.g. UMOS transistors
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D30/00—Field-effect transistors [FET]
    • H10D30/01—Manufacture or treatment
    • H10D30/021—Manufacture or treatment of FETs having insulated gates [IGFET]
    • H10D30/028—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs
    • H10D30/0291—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs of vertical DMOS [VDMOS] FETs
    • H10D30/0297—Manufacture or treatment of FETs having insulated gates [IGFET] of double-diffused metal oxide semiconductor [DMOS] FETs of vertical DMOS [VDMOS] FETs using recessing of the gate electrodes, e.g. to form trench gate electrodes
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D64/00—Electrodes of devices having potential barriers
    • H10D64/20—Electrodes characterised by their shapes, relative sizes or dispositions 
    • H10D64/27—Electrodes not carrying the current to be rectified, amplified, oscillated or switched, e.g. gates
    • H10D64/311—Gate electrodes for field-effect devices
    • H10D64/411—Gate electrodes for field-effect devices for FETs
    • H10D64/511—Gate electrodes for field-effect devices for FETs for IGFETs
    • H10D64/512—Disposition of the gate electrodes, e.g. buried gates
    • H10D64/513—Disposition of the gate electrodes, e.g. buried gates within recesses in the substrate, e.g. trench gates, groove gates or buried gates
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
    • H10D84/80—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs
    • H10D84/82—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components
    • H10D84/83—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components of only insulated-gate FETs [IGFET]
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
    • H10D84/80—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs
    • H10D84/82—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components
    • H10D84/83—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components of only insulated-gate FETs [IGFET]
    • H10D84/83125—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components of only insulated-gate FETs [IGFET] the IGFETs characterised by having shared source or drain regions
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D84/00—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers
    • H10D84/80—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs
    • H10D84/82—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components
    • H10D84/83—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components of only insulated-gate FETs [IGFET]
    • H10D84/837—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components of only insulated-gate FETs [IGFET] comprising vertical IGFETs
    • H10D84/839—Integrated devices formed in or on semiconductor substrates that comprise only semiconducting layers, e.g. on Si wafers or on GaAs-on-Si wafers characterised by the integration of at least one component covered by groups H10D12/00 or H10D30/00, e.g. integration of IGFETs of only field-effect components of only insulated-gate FETs [IGFET] comprising vertical IGFETs comprising VDMOS
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10P—GENERIC PROCESSES OR APPARATUS FOR THE MANUFACTURE OR TREATMENT OF DEVICES COVERED BY CLASS H10
    • H10P95/00—Generic processes or apparatus for manufacture or treatments not covered by the other groups of this subclass
    • H10P95/90—Thermal treatments, e.g. annealing or sintering
    • H10P95/906—Thermal treatments, e.g. annealing or sintering for altering the shape of semiconductors, e.g. smoothing the surface
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W10/00—Isolation regions in semiconductor bodies between components of integrated devices
    • H10W10/01—Manufacture or treatment
    • H10W10/011—Manufacture or treatment of isolation regions comprising dielectric materials
    • H10W10/014—Manufacture or treatment of isolation regions comprising dielectric materials using trench refilling with dielectric materials, e.g. shallow trench isolations
    • H10W10/0145—Manufacture or treatment of isolation regions comprising dielectric materials using trench refilling with dielectric materials, e.g. shallow trench isolations of trenches having shapes other than rectangular or V-shape
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10W—GENERIC PACKAGES, INTERCONNECTIONS, CONNECTORS OR OTHER CONSTRUCTIONAL DETAILS OF DEVICES COVERED BY CLASS H10
    • H10W10/00—Isolation regions in semiconductor bodies between components of integrated devices
    • H10W10/10—Isolation regions comprising dielectric materials
    • H10W10/17—Isolation regions comprising dielectric materials formed using trench refilling with dielectric materials, e.g. shallow trench isolations

Landscapes

  • Insulated Gate Type Field-Effect Transistor (AREA)
  • Electrodes Of Semiconductors (AREA)
TW089124927A 1999-11-24 2000-11-23 Method of increasing trench density for semiconductor devices TW465023B (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US09/447,933 US6291310B1 (en) 1999-11-24 1999-11-24 Method of increasing trench density for semiconductor

Publications (1)

Publication Number Publication Date
TW465023B true TW465023B (en) 2001-11-21

Family

ID=23778336

Family Applications (1)

Application Number Title Priority Date Filing Date
TW089124927A TW465023B (en) 1999-11-24 2000-11-23 Method of increasing trench density for semiconductor devices

Country Status (3)

Country Link
US (2) US6291310B1 (https=)
JP (1) JP2001203218A (https=)
TW (1) TW465023B (https=)

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US6406982B2 (en) * 2000-06-05 2002-06-18 Denso Corporation Method of improving epitaxially-filled trench by smoothing trench prior to filling
JP2002231945A (ja) * 2001-02-06 2002-08-16 Denso Corp 半導体装置の製造方法
US6800899B2 (en) * 2001-08-30 2004-10-05 Micron Technology, Inc. Vertical transistors, electrical devices containing a vertical transistor, and computer systems containing a vertical transistor
JP4123961B2 (ja) * 2002-03-26 2008-07-23 富士電機デバイステクノロジー株式会社 半導体装置の製造方法
US20050106794A1 (en) * 2002-03-26 2005-05-19 Fuji Electric Holdings Co., Ltd. Method of manufacturing a semiconductor device
US6740571B2 (en) * 2002-07-25 2004-05-25 Mosel Vitelic, Inc. Method of etching a dielectric material in the presence of polysilicon
JP2004111747A (ja) * 2002-09-19 2004-04-08 Tokyo Electron Ltd 半導体基板の処理方法及び半導体素子
US6872606B2 (en) * 2003-04-03 2005-03-29 Taiwan Semiconductor Manufacturing Company, Ltd. Semiconductor device with raised segment
US6911367B2 (en) * 2003-04-18 2005-06-28 Micron Technology, Inc. Methods of forming semiconductive materials having flattened surfaces; methods of forming isolation regions; and methods of forming elevated source/drain regions
KR100471001B1 (ko) * 2003-07-02 2005-03-14 삼성전자주식회사 리세스형 트랜지스터 및 그의 제조방법
CN100505208C (zh) * 2004-03-23 2009-06-24 Nxp股份有限公司 制造半导体器件的方法以及由所述方法获得的半导体器件
US7402863B2 (en) * 2004-06-21 2008-07-22 International Rectifier Corporation Trench FET with reduced mesa width and source contact inside active trench
KR100689211B1 (ko) * 2004-12-11 2007-03-08 경북대학교 산학협력단 안장형 엠오에스 소자
US7553740B2 (en) * 2005-05-26 2009-06-30 Fairchild Semiconductor Corporation Structure and method for forming a minimum pitch trench-gate FET with heavy body region
US7829941B2 (en) * 2006-01-24 2010-11-09 Alpha & Omega Semiconductor, Ltd. Configuration and method to form MOSFET devices with low resistance silicide gate and mesa contact regions
ES2449865T5 (es) 2008-04-16 2022-11-18 Momenta Pharmaceuticals Inc Análisis de composiciones de copolímeros de aminoácidos
EP2414384B2 (en) * 2009-04-03 2023-05-03 Momenta Pharmaceuticals, Inc. Control of copolymer compositions
KR20100111162A (ko) * 2009-04-06 2010-10-14 삼성전자주식회사 리세스 채널 모스 트랜지스터를 갖는 반도체소자 제조방법
KR101651941B1 (ko) * 2010-02-16 2016-08-30 삼성전자주식회사 리세스 채널을 포함하는 반도체 소자의 제조방법

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5607511A (en) * 1992-02-21 1997-03-04 International Business Machines Corporation Method and apparatus for low temperature, low pressure chemical vapor deposition of epitaxial silicon layers
US5268311A (en) * 1988-09-01 1993-12-07 International Business Machines Corporation Method for forming a thin dielectric layer on a substrate
JPH05315620A (ja) * 1992-05-08 1993-11-26 Rohm Co Ltd 半導体装置およびその製造法
JP3217690B2 (ja) * 1996-03-22 2001-10-09 株式会社東芝 半導体装置の製造方法
JP2891205B2 (ja) * 1996-10-21 1999-05-17 日本電気株式会社 半導体集積回路の製造方法
JP3976374B2 (ja) * 1997-07-11 2007-09-19 三菱電機株式会社 トレンチｍｏｓゲート構造を有する半導体装置及びその製造方法
JP3502531B2 (ja) * 1997-08-28 2004-03-02 株式会社ルネサステクノロジ 半導体装置の製造方法
JPH11274425A (ja) * 1998-03-24 1999-10-08 Toshiba Corp 半導体記憶装置およびその製造方法

Also Published As

Publication number Publication date
US20010034109A1 (en) 2001-10-25
US6291310B1 (en) 2001-09-18
JP2001203218A (ja) 2001-07-27

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