IT1247293B - Dispositivo transistore di potenza presentante una regione ultra-profonda, a maggior concentrazione - Google Patents

Dispositivo transistore di potenza presentante una regione ultra-profonda, a maggior concentrazione

Info

Publication number
IT1247293B
IT1247293B ITMI911121A ITMI911121A IT1247293B IT 1247293 B IT1247293 B IT 1247293B IT MI911121 A ITMI911121 A IT MI911121A IT MI911121 A ITMI911121 A IT MI911121A IT 1247293 B IT1247293 B IT 1247293B
Authority
IT
Italy
Prior art keywords
region
ultra
greater concentration
power transistor
transistor device
Prior art date
Application number
ITMI911121A
Other languages
English (en)
Inventor
Perry Merril
Herbert J Gould
Original Assignee
Int Rectifier 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 Int Rectifier Corp filed Critical Int Rectifier Corp
Publication of ITMI911121A0 publication Critical patent/ITMI911121A0/it
Publication of ITMI911121A1 publication Critical patent/ITMI911121A1/it
Application granted granted Critical
Publication of IT1247293B publication Critical patent/IT1247293B/it

Links

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
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D12/00—Bipolar devices controlled by the field effect, e.g. insulated-gate bipolar transistors [IGBT]
    • H10D12/01—Manufacture or treatment
    • H10D12/031—Manufacture or treatment of IGBTs
    • H10D12/032—Manufacture or treatment of IGBTs of vertical IGBTs
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D12/00—Bipolar devices controlled by the field effect, e.g. insulated-gate bipolar transistors [IGBT]
    • H10D12/411—Insulated-gate bipolar transistors [IGBT]
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D12/00—Bipolar devices controlled by the field effect, e.g. insulated-gate bipolar transistors [IGBT]
    • H10D12/411—Insulated-gate bipolar transistors [IGBT]
    • H10D12/441—Vertical IGBTs
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D12/00—Bipolar devices controlled by the field effect, e.g. insulated-gate bipolar transistors [IGBT]
    • H10D12/411—Insulated-gate bipolar transistors [IGBT]
    • H10D12/441—Vertical IGBTs
    • H10D12/491—Vertical IGBTs having both emitter contacts and collector contacts in the same substrate side
    • 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
    • H10D30/662—Vertical DMOS [VDMOS] FETs having a drift region having a doping concentration that is higher between adjacent body regions relative to other parts of the drift region
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10D—INORGANIC ELECTRIC SEMICONDUCTOR DEVICES
    • H10D62/00—Semiconductor bodies, or regions thereof, of devices having potential barriers
    • H10D62/10—Shapes, relative sizes or dispositions of the regions of the semiconductor bodies; Shapes of the semiconductor bodies
    • H10D62/13—Semiconductor regions connected to electrodes carrying current to be rectified, amplified or switched, e.g. source or drain regions
    • H10D62/149—Source or drain regions of field-effect devices
    • H10D62/151—Source or drain regions of field-effect devices of IGFETs 

Landscapes

  • Thyristors (AREA)
  • Bipolar Transistors (AREA)
  • Insulated Gate Type Field-Effect Transistor (AREA)
  • Light Receiving Elements (AREA)

Abstract

Un dispositivo "IGBT" sfrutta la maggior concentrazione nella regione attiva fra basi distanziate, ad una profondità maggiore della profondità delle regioni di base. La dose di impiantagione, che rappresenta la sorgente della maggior concentrazione è pari, approssimativamente, a 3,5 x 10 alla 12 atomi/cm2 e viene pilotata per circa 10 ore, a 1175°C. La durata viene ridotta da una maggior dose di radiazione, per ridurre le perdite di commutazione senza ridurre la tensione di rottura, o aumentare la caduta di tensione diretta oltre i livelli precedenti. La regione di maggior concentrazione permette una riduzione nella spaziatura fra le basi e fornisce una regione con un basso guadagno bipolare localizzato, aumentando la corrente di bloccaggio. L'energia a valanga che il dispositivo può assorbire durante la disattivazione di un carico induttivo aumenta in misura significativa. La regione di conduzione viene formata prima delle regioni del corpo e della sorgente in un nuovo processo.
ITMI911121A 1990-05-09 1991-04-23 Dispositivo transistore di potenza presentante una regione ultra-profonda, a maggior concentrazione IT1247293B (it)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US52117790A 1990-05-09 1990-05-09

Publications (3)

Publication Number Publication Date
ITMI911121A0 ITMI911121A0 (it) 1991-04-23
ITMI911121A1 ITMI911121A1 (it) 1992-10-23
IT1247293B true IT1247293B (it) 1994-12-12

Family

ID=24075680

Family Applications (1)

Application Number Title Priority Date Filing Date
ITMI911121A IT1247293B (it) 1990-05-09 1991-04-23 Dispositivo transistore di potenza presentante una regione ultra-profonda, a maggior concentrazione

Country Status (9)

Country Link
US (2) US5661314A (it)
JP (1) JP3004077B2 (it)
KR (1) KR950011019B1 (it)
AT (1) AT404525B (it)
CA (1) CA2042069A1 (it)
DE (1) DE4114174A1 (it)
FR (1) FR2662025A1 (it)
GB (1) GB2243952B (it)
IT (1) IT1247293B (it)

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Also Published As

Publication number Publication date
ITMI911121A1 (it) 1992-10-23
FR2662025A1 (fr) 1991-11-15
AT404525B (de) 1998-12-28
US5661314A (en) 1997-08-26
JPH04229660A (ja) 1992-08-19
CA2042069A1 (en) 1991-11-10
JP3004077B2 (ja) 2000-01-31
DE4114174A1 (de) 1991-11-14
KR950011019B1 (en) 1995-09-27
ATA95691A (de) 1998-04-15
GB9110071D0 (en) 1991-07-03
US5904510A (en) 1999-05-18
KR910020923A (ko) 1991-12-20
GB2243952A (en) 1991-11-13
ITMI911121A0 (it) 1991-04-23
GB2243952B (en) 1994-08-17

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Effective date: 19970423