Global Patent Index - EP 0970526 A2

EP 0970526 A2 2000-01-12 - POWER SEMICONDUCTOR DEVICES

Title (en)

POWER SEMICONDUCTOR DEVICES

Title (de)

LEISTUNGS-HALBLEITERANORDNUNGEN

Title (fr)

DISPOSITIF DE PUISSANCE A SEMI-CONDUCTEUR

Publication

EP 0970526 A2 (EN)

Application

EP 98957086 A

Priority

  • GB 9726829 A
  • IB 9802027 W

Abstract (en)

[origin: WO9933119A2] A power semiconductor device comprises a multiple-cellular insulated-gate field-effect transistor structure with each cell (100) present at a corresponding opening (110) in a mesh-shaped gate electrode (11). The cells (100) and the openings (110) are of elongate shape having longitudinal sides (X) at which the channel areas (1) are present under a gate insulating layer (12) under longitudinal parts (11x) of the gate electrode (11). The channel areas (1) are absent at ends (Z) of the elongate cells (100). Preferably, the longitudinal parts (11x) of the gate electrode (11) are interconnected beyond the ends (Z) of the elongate cells (100) by interconnection parts (11z) of the gate electrode (11) which are located on a thicker insulating layer (13) than the gate insulating layer (12). This thicker insulating layer (13) is present at least between facing ends (Z) of neigbouring elongate cells (100) where the channel areas (11) are absent.

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

H01L 29/78; H01L 29/423

IPC 8 full level (invention and additional information)

H01L 29/749 (2006.01); H01L 21/331 (2006.01); H01L 21/336 (2006.01); H01L 29/06 (2006.01); H01L 29/10 (2006.01); H01L 29/739 (2006.01); H01L 29/78 (2006.01); H01L 29/423 (2006.01)

CPC (invention and additional information)

H01L 29/7802 (2013.01); H01L 29/0696 (2013.01); H01L 29/1095 (2013.01); H01L 29/6634 (2013.01); H01L 29/7396 (2013.01); H01L 29/41766 (2013.01); H01L 29/42368 (2013.01); H01L 29/4238 (2013.01)

Designated contracting state (EPC)

DE FR GB IT NL

EPO simple patent family

WO 9933119 A2 19990701; WO 9933119 A3 19990826; EP 0970526 A2 20000112; GB 9726829 D0 19980218; JP 2001512629 A 20010821

INPADOC legal status


2001-04-04 [18W] APPLICATION WITHDRAWN

- Date of withdrawal: 20010205

2000-01-12 [17P] REQUEST FOR EXAMINATION FILED

- Effective date: 19990920

2000-01-12 [AK] DESIGNATED CONTRACTING STATES:

- Kind Code of Ref Document: A2

- Designated State(s): DE FR GB IT NL