Global patent index - EP 1048074 A1

EP 1048074 A1 2000-11-02 - POWER MOSFET

Title (en)

POWER MOSFET

Title (de)

LEISTUNGS-MOSFET

Title (fr)

TRANSISTOR MOS DE PUISSANCE

Publication

EP 1048074 A1 (DE)

Application

EP 98966510 A

Priority

  • DE 9803589 W
  • DE 19801095 A

Abstract (en)

[origin: DE19801095A1] A power MOSFET has a highly conductive connection (9) between its source zone (4) and its semiconductor substrate (1). Preferred Features: The conductive connection may be: (a) a first conductivity type heavily doped semiconductor zone; (b) a trench from which the first conductivity type dopant diffuses outwardly and which is filled with single crystal silicon or polysilicon; or (c) a trench which is filled with a metal, especially tungsten, or a highly conductive layer, especially titanium nitride.

IPC 1-7 (main, further and additional classification)

H01L 23/48; H01L 23/367

IPC 8 full level (invention and additional information)

H01L 29/417 (2006.01); H01L 29/78 (2006.01); H01L 29/06 (2006.01); H01L 29/41 (2006.01); H01L 29/423 (2006.01)

CPC (invention and additional information)

H01L 29/7816 (2013.01); H01L 29/4175 (2013.01); H01L 29/7834 (2013.01); H01L 29/7835 (2013.01); H01L 29/0696 (2013.01); H01L 29/41 (2013.01); H01L 29/41766 (2013.01); H01L 29/4236 (2013.01); H01L 2924/0002 (2013.01)

Combination set (CPC)

H01L 2924/0002 + H01L 2924/00

Citation (search report)

See references of WO 9936961A1

Designated contracting state (EPC)

DE FR GB IT

EPO simple patent family

DE 19801095 A1 19990715; DE 19801095 B4 20071213; EP 1048074 A1 20001102; JP 2002510147 A 20020402; US 6459142 B1 20021001; WO 9936961 A1 19990722

INPADOC legal status

2002-06-05 [18W] WITHDRAWN

- Ref Legal Event Code: 18W

- Date of withdrawal: 20020412

2001-11-07 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20010920

2000-11-02 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000628

2000-11-02 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): DE FR GB IT