(19)
(11) EP 0 958 601 A1

(12)

(43) Date of publication:
24.11.1999 Bulletin 1999/47

(21) Application number: 97928614.0

(22) Date of filing: 18.06.1997
(51) International Patent Classification (IPC): 
H01L 21/ 04( . )
H01L 29/ 78( . )
H01L 29/ 24( . )
(86) International application number:
PCT/SE1997/001088
(87) International publication number:
WO 1997/049124 (24.12.1997 Gazette 1998/03)
(84) Designated Contracting States:
DE FR GB IT SE

(30) Priority: 19.06.1996 SE 19960002407

(71) Applicant: ABB RESEARCH LTD.
8050 Zürich (CH)

(72) Inventors:
  • HARRIS, Christopher
    S-191 72 Sollentuna (SE)
  • BAKOWSKI, Mietek
    S-730 50 Skultuna (SE)
  • ZDANSKY, Lennart
    S-722 23 Väster s (SE)
  • BIJLENGA, Bo
    S-730 50 Skultuna (SE)

(74) Representative: Olsson, Jan, et al 
Bjerkéns Patentbyra KB P.O.Box 1274
801 37 Gävle
801 37 Gävle (SE)

   


(54) A METHOD FOR PRODUCING A CHANNEL REGION LAYER IN A VOLTAGE CONTROLLED SEMICONDUCTOR DEVICE