INSULATED GATE BIPOLAR TRANSISTOR HAVING A TRENCH AND A METHOD FOR PRODUCTION THEREOF - Patent 0890191

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EP 0 890 191 A1

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(43)	Date of publication:
	13.01.1999 Bulletin 1999/02

(21)	Application number: 97915821.0

(22)	Date of filing: 26.03.1997

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International Patent Classification (IPC):

H01L 21/ 331^{( . )}
H01L 29/ 10^{( . )}

H01L 29/ 06^{( . )}
H01L 29/ 739^{( . )}

(86)	International application number:
	PCT/SE1997/000531

(87)	International publication number:
	WO 1997/036329 (02.10.1997 Gazette 1997/42)

(84)	Designated Contracting States:
	DE FR GB IT SE

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Priority:

27.03.1996 SE 19960001172

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

(72)	Inventors:
	HARRIS, Christopher S-191 72 Sollentuna (SE) BAKOWSKI, Mietek S-730 50 Skultuna (SE) GUSTAFSSON, Ulf S-582 61 Linköping (SE)

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

(54)	INSULATED GATE BIPOLAR TRANSISTOR HAVING A TRENCH AND A METHOD FOR PRODUCTION THEREOF