DE69505348D1 - Hochspannungs-MOSFET mit Feldplatten-Elektrode und Verfahren zur Herstellung - Google Patents

Hochspannungs-MOSFET mit Feldplatten-Elektrode und Verfahren zur Herstellung

Info

Publication number
DE69505348D1
DE69505348D1 DE69505348T DE69505348T DE69505348D1 DE 69505348 D1 DE69505348 D1 DE 69505348D1 DE 69505348 T DE69505348 T DE 69505348T DE 69505348 T DE69505348 T DE 69505348T DE 69505348 D1 DE69505348 D1 DE 69505348D1
Authority
DE
Germany
Prior art keywords
manufacture
high voltage
field plate
plate electrode
voltage mosfet
Prior art date
Legal status (The legal status 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 status listed.)
Expired - Fee Related
Application number
DE69505348T
Other languages
English (en)
Other versions
DE69505348T2 (de
Inventor
Petro Riccardo De
Michele Palmieri
Paola Galbiati
Claudio Contiero
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
STMicroelectronics SRL
Original Assignee
STMicroelectronics SRL
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 STMicroelectronics SRL filed Critical STMicroelectronics SRL
Publication of DE69505348D1 publication Critical patent/DE69505348D1/de
Application granted granted Critical
Publication of DE69505348T2 publication Critical patent/DE69505348T2/de
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof  ; Multistep manufacturing processes therefor
    • H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
    • H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
    • H01L29/76—Unipolar devices, e.g. field effect transistors
    • H01L29/772—Field effect transistors
    • H01L29/78—Field effect transistors with field effect produced by an insulated gate
    • H01L29/7801—DMOS transistors, i.e. MISFETs with a channel accommodating body or base region adjoining a drain drift region
    • H01L29/7802—Vertical DMOS transistors, i.e. VDMOS transistors
    • H01L29/7813—Vertical DMOS transistors, i.e. VDMOS transistors with trench gate electrode, e.g. UMOS transistors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof  ; Multistep manufacturing processes therefor
    • H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
    • H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
    • H01L29/0684—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions characterised by the shape, relative sizes or dispositions of the semiconductor regions or junctions between the regions
    • H01L29/0692—Surface layout
    • H01L29/0696—Surface layout of cellular field-effect devices, e.g. multicellular DMOS transistors or IGBTs
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof  ; Multistep manufacturing processes therefor
    • H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
    • H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
    • H01L29/08—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions with semiconductor regions connected to an electrode carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
    • H01L29/0843—Source or drain regions of field-effect devices
    • H01L29/0847—Source or drain regions of field-effect devices of field-effect transistors with insulated gate
    • H01L29/0852—Source or drain regions of field-effect devices of field-effect transistors with insulated gate of DMOS transistors
    • H01L29/0873—Drain regions
    • H01L29/0882—Disposition
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof  ; Multistep manufacturing processes therefor
    • H01L29/02—Semiconductor bodies ; Multistep manufacturing processes therefor
    • H01L29/06—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions
    • H01L29/08—Semiconductor bodies ; Multistep manufacturing processes therefor characterised by their shape; characterised by the shapes, relative sizes, or dispositions of the semiconductor regions ; characterised by the concentration or distribution of impurities within semiconductor regions with semiconductor regions connected to an electrode carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
    • H01L29/0843—Source or drain regions of field-effect devices
    • H01L29/0847—Source or drain regions of field-effect devices of field-effect transistors with insulated gate
    • H01L29/0852—Source or drain regions of field-effect devices of field-effect transistors with insulated gate of DMOS transistors
    • H01L29/0873—Drain regions
    • H01L29/0886—Shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof  ; Multistep manufacturing processes therefor
    • H01L29/40—Electrodes ; Multistep manufacturing processes therefor
    • H01L29/402—Field plates
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof  ; Multistep manufacturing processes therefor
    • H01L29/40—Electrodes ; Multistep manufacturing processes therefor
    • H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
    • H01L29/417—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions carrying the current to be rectified, amplified or switched
    • H01L29/41725—Source or drain electrodes for field effect devices
    • H01L29/41766—Source or drain electrodes for field effect devices with at least part of the source or drain electrode having contact below the semiconductor surface, e.g. the source or drain electrode formed at least partially in a groove or with inclusions of conductor inside the semiconductor
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof  ; Multistep manufacturing processes therefor
    • H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
    • H01L29/66007—Multistep manufacturing processes
    • H01L29/66075—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials
    • H01L29/66227—Multistep manufacturing processes of devices having semiconductor bodies comprising group 14 or group 13/15 materials the devices being controllable only by the electric current supplied or the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched, e.g. three-terminal devices
    • H01L29/66409—Unipolar field-effect transistors
    • H01L29/66477—Unipolar field-effect transistors with an insulated gate, i.e. MISFET
    • H01L29/66674—DMOS transistors, i.e. MISFETs with a channel accommodating body or base region adjoining a drain drift region
    • H01L29/66681—Lateral DMOS transistors, i.e. LDMOS transistors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof  ; Multistep manufacturing processes therefor
    • H01L29/66—Types of semiconductor device ; Multistep manufacturing processes therefor
    • H01L29/68—Types of semiconductor device ; Multistep manufacturing processes therefor controllable by only the electric current supplied, or only the electric potential applied, to an electrode which does not carry the current to be rectified, amplified or switched
    • H01L29/76—Unipolar devices, e.g. field effect transistors
    • H01L29/772—Field effect transistors
    • H01L29/78—Field effect transistors with field effect produced by an insulated gate
    • H01L29/7801—DMOS transistors, i.e. MISFETs with a channel accommodating body or base region adjoining a drain drift region
    • H01L29/7816—Lateral DMOS transistors, i.e. LDMOS transistors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices adapted for rectifying, amplifying, oscillating or switching, or capacitors or resistors with at least one potential-jump barrier or surface barrier, e.g. PN junction depletion layer or carrier concentration layer; Details of semiconductor bodies or of electrodes thereof  ; Multistep manufacturing processes therefor
    • H01L29/40—Electrodes ; Multistep manufacturing processes therefor
    • H01L29/41—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions
    • H01L29/423—Electrodes ; Multistep manufacturing processes therefor characterised by their shape, relative sizes or dispositions not carrying the current to be rectified, amplified or switched
    • H01L29/42312—Gate electrodes for field effect devices
    • H01L29/42316—Gate electrodes for field effect devices for field-effect transistors
    • H01L29/4232—Gate electrodes for field effect devices for field-effect transistors with insulated gate
    • H01L29/42364—Gate electrodes for field effect devices for field-effect transistors with insulated gate characterised by the insulating layer, e.g. thickness or uniformity
    • H01L29/42368—Gate electrodes for field effect devices for field-effect transistors with insulated gate characterised by the insulating layer, e.g. thickness or uniformity the thickness being non-uniform

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Power Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Ceramic Engineering (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Manufacturing & Machinery (AREA)
  • Insulated Gate Type Field-Effect Transistor (AREA)
DE69505348T 1995-02-21 1995-02-21 Hochspannungs-MOSFET mit Feldplatten-Elektrode und Verfahren zur Herstellung Expired - Fee Related DE69505348T2 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
EP95830045A EP0730309B1 (de) 1995-02-21 1995-02-21 Hochspannungs-MOSFET mit Feldplatten-Elektrode und Verfahren zur Herstellung

Publications (2)

Publication Number Publication Date
DE69505348D1 true DE69505348D1 (de) 1998-11-19
DE69505348T2 DE69505348T2 (de) 1999-03-11

Family

ID=8221853

Family Applications (1)

Application Number Title Priority Date Filing Date
DE69505348T Expired - Fee Related DE69505348T2 (de) 1995-02-21 1995-02-21 Hochspannungs-MOSFET mit Feldplatten-Elektrode und Verfahren zur Herstellung

Country Status (4)

Country Link
US (1) US6093588A (de)
EP (1) EP0730309B1 (de)
JP (1) JPH08255913A (de)
DE (1) DE69505348T2 (de)

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JP3142057B2 (ja) 1997-11-13 2001-03-07 日本電気株式会社 半導体装置とその製造方法、及び駆動装置
US6441431B1 (en) * 1998-12-04 2002-08-27 Texas Instruments Incorporated Lateral double diffused metal oxide semiconductor device
JP2001094094A (ja) 1999-09-21 2001-04-06 Hitachi Ltd 半導体装置およびその製造方法
US6429077B1 (en) * 1999-12-02 2002-08-06 United Microelectronics Corp. Method of forming a lateral diffused metal-oxide semiconductor transistor
JP2002314065A (ja) * 2001-04-13 2002-10-25 Sanyo Electric Co Ltd Ｍｏｓ半導体装置およびその製造方法
EP1291924A1 (de) * 2001-09-10 2003-03-12 STMicroelectronics S.r.l. MOS-Halbleiteranordnung mit einem Bodybereich
EP1296378A1 (de) * 2001-09-21 2003-03-26 STMicroelectronics S.r.l. MOS-Halbleiteranordnung und Verfahren zu deren Herstellung
JP4228586B2 (ja) * 2002-05-21 2009-02-25 富士電機デバイステクノロジー株式会社 半導体装置
US20040079974A1 (en) * 2002-10-24 2004-04-29 Texas Instruments Incorporated Method for manufacturing a semiconductor device using dummy openings in a photoresist material and an LDMOS device manufactured in accordance with the method
US6870218B2 (en) * 2002-12-10 2005-03-22 Fairchild Semiconductor Corporation Integrated circuit structure with improved LDMOS design
EP1577952B1 (de) * 2004-03-09 2018-07-04 STMicroelectronics Srl Verfahren zur Herstellung eines Hochspannungsfeldeffekttransistors mit isoliertem Gate
US7122876B2 (en) * 2004-08-11 2006-10-17 Taiwan Semiconductor Manufacturing Company, Ltd. Isolation-region configuration for integrated-circuit transistor
US8093663B2 (en) * 2006-05-09 2012-01-10 Taiwan Semiconductor Manufacturing Co., Ltd. Semiconductor device, method of fabricating the same, and patterning mask utilized by the method
US20080042221A1 (en) * 2006-08-15 2008-02-21 Liming Tsau High voltage transistor
US8174071B2 (en) * 2008-05-02 2012-05-08 Taiwan Semiconductor Manufacturing Co., Ltd. High voltage LDMOS transistor
US7906810B2 (en) * 2008-08-06 2011-03-15 United Microelectronics Corp. LDMOS device for ESD protection circuit
US8378422B2 (en) * 2009-02-06 2013-02-19 Taiwan Semiconductor Manufacturing Company, Ltd. Electrostatic discharge protection device comprising a plurality of highly doped areas within a well
KR101450437B1 (ko) 2013-03-12 2014-10-14 주식회사 동부하이텍 Ldmos 소자와 그 제조 방법
US10121779B2 (en) * 2016-12-13 2018-11-06 Globalfoundries Singapore Pte. Ltd. Integrated circuits with high current capacity and methods for producing the same
JP2019054106A (ja) * 2017-09-14 2019-04-04 株式会社東芝 半導体装置

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US4333225A (en) * 1978-12-18 1982-06-08 Xerox Corporation Method of making a circular high voltage field effect transistor
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Also Published As

Publication number Publication date
EP0730309A1 (de) 1996-09-04
US6093588A (en) 2000-07-25
JPH08255913A (ja) 1996-10-01
DE69505348T2 (de) 1999-03-11
EP0730309B1 (de) 1998-10-14

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