Copper alloy sheet for electric and electronic parts

Details Copper alloy sheet for electric and electronic parts Copper alloy sheet for electric and electronic parts

2007-09-26

2011-11-22

Tran, Minh-Loan T (Department: 2826)

Active solid-state devices (e.g., transistors, solid-state diode

Lead frame

C257S677000, C257S762000, C257SE23161

Reexamination Certificate

active

08063471

ABSTRACT:
A Cu—Fe—P alloy sheet that is provided with the high strength and with the improved resistance of peel off of oxidation film, in order to deal with problems such as package cracks and peeling, is provided. A copper alloy sheet for electric and electronic parts according to the present invention is a copper alloy sheet containing Fe: 0.01 to 0.50 mass % and P: 0.01 to 0.15 mass %, respectively, with the remainder of Cu and inevitable impurities. A centerline average roughness Ra is 0.2 μm or less and a maximum height Rmax is 1.5 μm or less, and Kurtosis (degree peakedness) Rku of roughness curve is 5.0 or less, in measurement of the surface roughness of the copper alloy sheet in accordance with JIS B0601.

REFERENCES:
patent: 3868279 (1975-02-01), Nachman et al.
patent: 4047978 (1977-09-01), Parikh et al.
patent: 4110132 (1978-08-01), Parikh et al.
patent: 4851191 (1989-07-01), Lee et al.
patent: 6569543 (2003-05-01), Brenneman et al.
patent: 7022419 (2006-04-01), Ishigami et al.
patent: 7381475 (2008-06-01), Suzuki
patent: 2002/0012603 (2002-01-01), Miwa
patent: 2003/0211357 (2003-11-01), Harada et al.
patent: 2004/0076832 (2004-04-01), Nagai et al.
patent: 2005/0092404 (2005-05-01), Aruga et al.
patent: 2005/0161126 (2005-07-01), Aruga et al.
patent: 2005/0181228 (2005-08-01), McCullough et al.
patent: 2006/0137773 (2006-06-01), Aruga et al.
patent: 2007/0148032 (2007-06-01), Aruga et al.
patent: 2008/0025867 (2008-01-01), Aruga et al.
patent: 2009/0010797 (2009-01-01), Aruga et al.
patent: 2010/0276037 (2010-11-01), Yamamoto et al.
patent: 2 122035 (1990-05-01), None
patent: 2 145734 (1990-06-01), None
patent: 2 170935 (1990-07-01), None
patent: 6 235035 (1994-08-01), None
patent: 7 242965 (1995-09-01), None
patent: 2000 104131 (2000-04-01), None
patent: 2000 328157 (2000-11-01), None
patent: 2000 328158 (2000-11-01), None
patent: 2000 328159 (2000-11-01), None
patent: 2001 244400 (2001-09-01), None
patent: 2001 279347 (2001-10-01), None
patent: 2002 266042 (2002-09-01), None
patent: 2002 339028 (2002-11-01), None
patent: 2005 139501 (2005-06-01), None
patent: 2005 206891 (2005-08-01), None
patent: 2006 63431 (2006-03-01), None
patent: 2006 83465 (2006-03-01), None
patent: 2006 247740 (2006-09-01), None
U.S. Appl. No. 11/916,730, filed Dec. 6, 2007, Aruga, et al.
U.S. Appl. No. 11/994,136, filed Dec. 28, 2007, Aruga, et al.
U.S. Appl. No. 12/297,060, filed Oct. 14, 2008, Aruga, et al.
U.S. Appl. No. 12/254,345, filed Oct. 20, 2008, Takagi, et al.
U.S. Appl. No. 12/374,154, filed Jan. 16, 2009, Aruga, et al.
U.S. Appl. No. 12/672,092, filed Feb. 4, 2010, Aruga, et al.
U.S. Appl. No. 12/363,974, filed Feb. 2, 2009, Miwa, et al.
U.S. Appl. No. 12/811,339, filed Jun. 30, 2010, Aruga.

Affiliated with

Also associated with

Rating

Copper alloy sheet for electric and electronic parts does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Copper alloy sheet for electric and electronic parts, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Copper alloy sheet for electric and electronic parts will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4290348