EP 1328978 A1 20030723 - VERTICAL COMPONENT WITH HIGH-VOLTAGE STRENGTH
Title (en)
VERTICAL COMPONENT WITH HIGH-VOLTAGE STRENGTH
Title (de)
VERTIKALE ANORDNUNG MIT HOCHSPANNUNGSFESTIGKEIT
Title (fr)
COMPOSANT VERTICAL A TENUE EN TENSION ELEVEE
Publication
Application
Priority
- FR 0103150 W 20011011
- FR 0013077 A 20001012
Abstract (en)
[origin: FR2815471A1] The vertical four-layer component comprises a thick lightly doped zone (1) of n-type conductivity surrounded by a peripheral wall (2) of p-type conductivity extending verticaly from the rear to the front surface of the component, a highly doped layer (3) of p-type conductivity extending over the rear surfacec of the component, and in addition a lightly doped layer (21) of p-type conductivity extending over the interface between the thick lightly doped zone (1) and the highly doped layer (3). The addition of the lightly doped layer (21) increases the reverse-bias breakdown voltage from 1050 V to 1350 V, that is gives an increase of 25%. In a variant of the device, the vertical semiconductor component constituting a triac comprises a highly doped zone of n-type conductivity formed on the side of the rear surfacce in the highly doped layer (3), and the highly doped layer (21) is interrupted with respect to the additional highly doped zone, which is equipped with short-circuits of emitter. This modification prevents higher threshold current caused by the addition of the lightly doped layer (21), but the breakdown voltage is increased from 1050 V to 1220 V, that is an increase of 15%.
IPC 1-7
IPC 8 full level
H01L 29/08 (2006.01); H01L 29/747 (2006.01)
CPC (source: EP US)
H01L 29/0834 (2013.01 - EP US); H01L 29/747 (2013.01 - EP US)
Citation (search report)
See references of WO 0231885A1
Designated contracting state (EPC)
FR GB
DOCDB simple family (publication)
FR 2815471 A1 20020419; FR 2815471 B1 20030207; CN 1220269 C 20050921; CN 1470074 A 20040121; EP 1328978 A1 20030723; US 2003141516 A1 20030731; US 6967356 B2 20051122; WO 0231885 A1 20020418
DOCDB simple family (application)
FR 0013077 A 20001012; CN 01817268 A 20011011; EP 01976404 A 20011011; FR 0103150 W 20011011; US 16985202 A 20021015