(19)
(11) EP 0 686 305 A1

(12)

(43) Date of publication:
13.12.1995 Bulletin 1995/50

(21) Application number: 94909780.0

(22) Date of filing: 18.02.1994
(51) International Patent Classification (IPC): 
H01L 27/ 092( . )
H01L 21/ 8238( . )
H01L 29/ 808( . )
H01L 21/ 337( . )
H01L 27/ 085( . )
(86) International application number:
PCT/US1994/001990
(87) International publication number:
WO 1994/019828 (01.09.1994 Gazette 1994/20)
(84) Designated Contracting States:
DE FR GB

(30) Priority: 25.02.1993 US 19930023798

(71) Applicant: NATIONAL SEMICONDUCTOR CORPORATION
Santa Clara, California 95052-8090 (US)

(72) Inventors:
  • MERRILL, Richard, B.
    Daly City, CA 94014 (US)
  • FARRENKOPF, Doug, R.
    Santa Clara, CA 95051 (US)

(74) Representative: Bowles, Sharon Margaret, et al 
BOWLES HORTON Felden House Dower Mews High Street
Berkhamsted Hertfordshire HP4 2BL
Berkhamsted Hertfordshire HP4 2BL (GB)

   


(54) FABRICATION PROCESS FOR CMOS DEVICE WITH JFET