SYSTEM AND METHOD FOR PLACEMENT OF DUMMY METAL FILLS WHILE PRESERVING DEVICE MATCHING AND/OR LIMITING CAPACITANCE INCREASE - Patent 1493111

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EP 1 493 111 A2

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(88)	Date of publication A3:
	15.07.2004

(43)	Date of publication:
	05.01.2005 Bulletin 2005/01

(21)	Application number: 03714076.1

(22)	Date of filing: 12.03.2003

(51)	International Patent Classification (IPC)⁷: G06F 17/50

(86)	International application number:
	PCT/US2003/007497

(87)	International publication number:
	WO 2003/079240 (25.09.2003 Gazette 2003/39)

(84)	Designated Contracting States:
	AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HU IE IT LI LU MC NL PT RO SE SI SK TR
	Designated Extension States:
	AL LT LV MK

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Priority:

12.03.2002 US 97978
30.05.2002 US 158617

(71)	Applicant: Ubitech, Inc.
	San Jose, CA 95110 (US)

(72)	Inventor:
	OH, Soo-Young Fremont, CA 94539 (US)

(74)	Representative: Moir, Michael Christopher et al
	Mathys & Squire100 Gray's Inn Road London WC1X 8AL London WC1X 8AL (GB)

(54)	SYSTEM AND METHOD FOR PLACEMENT OF DUMMY METAL FILLS WHILE PRESERVING DEVICE MATCHING AND/OR LIMITING CAPACITANCE INCREASE