DE60325008D1 - Integriertes Bauelement mit Schottky-diode und mit MOS Transistor und zugehöriges Herstellungsverfahren - Google Patents

Integriertes Bauelement mit Schottky-diode und mit MOS Transistor und zugehöriges Herstellungsverfahren

Info

Publication number
DE60325008D1
DE60325008D1 DE60325008T DE60325008T DE60325008D1 DE 60325008 D1 DE60325008 D1 DE 60325008D1 DE 60325008 T DE60325008 T DE 60325008T DE 60325008 T DE60325008 T DE 60325008T DE 60325008 D1 DE60325008 D1 DE 60325008D1
Authority
DE
Germany
Prior art keywords
schottky
diode
manufacturing process
mos transistor
integrated device
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 - Lifetime
Application number
DE60325008T
Other languages
English (en)
Inventor
Mario Saggio
Ferrucio Frisina
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
Application granted granted Critical
Publication of DE60325008D1 publication Critical patent/DE60325008D1/de
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a 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
    • H01L29/66712—Vertical DMOS transistors, i.e. VDMOS transistors
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a 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
    • H01L29/0603—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 particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions
    • H01L29/0607—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 particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions for preventing surface leakage or controlling electric field concentration
    • H01L29/0611—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 particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse biased devices
    • H01L29/0615—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 particular constructional design considerations, e.g. for preventing surface leakage, for controlling electric field concentration or for internal isolations regions for preventing surface leakage or controlling electric field concentration for increasing or controlling the breakdown voltage of reverse biased devices by the doping profile or the shape or the arrangement of the PN junction, or with supplementary regions, e.g. junction termination extension [JTE]
    • H01L29/063—Reduced surface field [RESURF] pn-junction structures
    • H01L29/0634—Multiple reduced surface field (multi-RESURF) structures, e.g. double RESURF, charge compensation, cool, superjunction (SJ), 3D-RESURF, composite buffer (CB) structures
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a 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
    • H01L29/42372—Gate electrodes for field effect devices for field-effect transistors with insulated gate characterised by the conducting layer, e.g. the length, the sectional shape or the lay-out
    • H01L29/42376—Gate electrodes for field effect devices for field-effect transistors with insulated gate characterised by the conducting layer, e.g. the length, the sectional shape or the lay-out characterised by the length or the sectional shape
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a 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
    • H01L29/42372—Gate electrodes for field effect devices for field-effect transistors with insulated gate characterised by the conducting layer, e.g. the length, the sectional shape or the lay-out
    • H01L29/4238—Gate electrodes for field effect devices for field-effect transistors with insulated gate characterised by the conducting layer, e.g. the length, the sectional shape or the lay-out characterised by the surface lay-out
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a 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
    • H01L29/7803—Vertical DMOS transistors, i.e. VDMOS transistors structurally associated with at least one other device
    • H01L29/7806—Vertical DMOS transistors, i.e. VDMOS transistors structurally associated with at least one other device the other device being a Schottky barrier diode
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L29/00—Semiconductor devices specially adapted for rectifying, amplifying, oscillating or switching and having potential barriers; Capacitors or resistors having potential barriers, e.g. a 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
    • H01L29/10—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 not carrying current to be rectified, amplified or switched and such electrode being part of a semiconductor device which comprises three or more electrodes
    • H01L29/1095—Body region, i.e. base region, of DMOS transistors or IGBTs

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)
  • Chemical & Material Sciences (AREA)
  • Composite Materials (AREA)
  • Electrodes Of Semiconductors (AREA)
DE60325008T 2002-12-20 2003-12-16 Integriertes Bauelement mit Schottky-diode und mit MOS Transistor und zugehöriges Herstellungsverfahren Expired - Lifetime DE60325008D1 (de)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT002700A ITMI20022700A1 (it) 2002-12-20 2002-12-20 Dispositivo integrato con diodo schottky e transitor mos

Publications (1)

Publication Number Publication Date
DE60325008D1 true DE60325008D1 (de) 2009-01-15

Family

ID=32375552

Family Applications (1)

Application Number Title Priority Date Filing Date
DE60325008T Expired - Lifetime DE60325008D1 (de) 2002-12-20 2003-12-16 Integriertes Bauelement mit Schottky-diode und mit MOS Transistor und zugehöriges Herstellungsverfahren

Country Status (4)

Country Link
US (2) US6841836B2 (de)
EP (1) EP1432037B1 (de)
DE (1) DE60325008D1 (de)
IT (1) ITMI20022700A1 (de)

Families Citing this family (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7667264B2 (en) * 2004-09-27 2010-02-23 Alpha And Omega Semiconductor Limited Shallow source MOSFET
US7948029B2 (en) 2005-02-11 2011-05-24 Alpha And Omega Semiconductor Incorporated MOS device with varying trench depth
US8283723B2 (en) * 2005-02-11 2012-10-09 Alpha & Omega Semiconductor Limited MOS device with low injection diode
US8093651B2 (en) * 2005-02-11 2012-01-10 Alpha & Omega Semiconductor Limited MOS device with integrated schottky diode in active region contact trench
US7285822B2 (en) 2005-02-11 2007-10-23 Alpha & Omega Semiconductor, Inc. Power MOS device
US8362547B2 (en) 2005-02-11 2013-01-29 Alpha & Omega Semiconductor Limited MOS device with Schottky barrier controlling layer
US7227207B2 (en) * 2005-03-03 2007-06-05 International Business Machines Corporation Dense semiconductor fuse array
US8933506B2 (en) * 2011-01-31 2015-01-13 Alpha And Omega Semiconductor Incorporated Diode structures with controlled injection efficiency for fast switching
JP6104743B2 (ja) * 2013-07-18 2017-03-29 株式会社豊田中央研究所 ショットキーダイオードを内蔵するｆｅｔ
WO2018063191A1 (en) * 2016-09-28 2018-04-05 Intel Corporation Techniques for forming schottky diodes on semipolar planes of group iii-n material structures
IT201700073767A1 (it) 2017-07-05 2019-01-05 St Microelectronics Srl Dispositivo mosfet di carburo di silicio avente un diodo integrato e relativo processo di fabbricazione

Family Cites Families (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1140841A (en) * 1965-01-24 1969-01-22 Production Engineering Res Ass Improved cutting tool
US4729697A (en) * 1986-06-18 1988-03-08 Dijet Inc. Milling cutter
US5556239A (en) * 1993-10-18 1996-09-17 Valenite Inc. Positive cutting insert with compound clearance faces
US5639189A (en) * 1994-11-08 1997-06-17 Ingersoll Cutting Tool Company Plunge milling insert
US6049108A (en) * 1995-06-02 2000-04-11 Siliconix Incorporated Trench-gated MOSFET with bidirectional voltage clamping
US5853267A (en) * 1996-08-22 1998-12-29 Iscar Ltd. Cutting insert
US5886383A (en) * 1997-01-10 1999-03-23 International Rectifier Corporation Integrated schottky diode and mosgated device
US5956578A (en) * 1997-04-23 1999-09-21 Motorola, Inc. Method of fabricating vertical FET with Schottky diode
SE512736C2 (sv) * 1997-06-10 2000-05-08 Seco Tools Ab Planfräsningsverktyg
JP3988262B2 (ja) * 1998-07-24 2007-10-10 富士電機デバイステクノロジー株式会社 縦型超接合半導体素子およびその製造方法
DE19848045C2 (de) * 1998-10-17 2002-01-31 Fette Wilhelm Gmbh Wendeplattenfräser
US6747315B1 (en) * 1999-07-15 2004-06-08 Rohm Co., Ltd. Semiconductor device having MOS field-effect transistor
DE10008545A1 (de) * 2000-02-24 2001-08-30 Bosch Gmbh Robert Monolithisch integriertes Halbleiterbauelement
US7126169B2 (en) * 2000-10-23 2006-10-24 Matsushita Electric Industrial Co., Ltd. Semiconductor element

Also Published As

Publication number Publication date
US20040140512A1 (en) 2004-07-22
US7071062B2 (en) 2006-07-04
EP1432037A2 (de) 2004-06-23
ITMI20022700A1 (it) 2004-06-21
US20050118766A1 (en) 2005-06-02
EP1432037A3 (de) 2005-06-22
EP1432037B1 (de) 2008-12-03
US6841836B2 (en) 2005-01-11

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