Semiconductor device manufacturing: process – Packaging or treatment of packaged semiconductor – Insulative housing or support
Reexamination Certificate
2010-11-08
2011-10-11
Le, Thao P. (Department: 2818)
Semiconductor device manufacturing: process
Packaging or treatment of packaged semiconductor
Insulative housing or support
C257SE21499
Reexamination Certificate
active
08034666
ABSTRACT:
A method for producing a multi-layer thick-film RF package includes forming conductive layer(s) including one or more source portions, one or more gate portions, and/or one or more drain portions on a ceramic substrate. The conductive layer(s) and the ceramic substrate are fired or otherwise heated in a furnace until sintered. Thereafter, a dielectric pattern is formed on the conductive layer(s) and fired or otherwise heated in the furnace until sintered. Then, a conductive bridge is formed on the dielectric pattern, over the one or more drain portions and between the one or more source portions, which is then fired until sintered in the furnace. As a result, a monolithic, single-piece, sintered, high-frequency RF power transistor package having circuit features including a highly conductive and low capacitive bridge is produced.
REFERENCES:
patent: 3387190 (1968-06-01), Winkler
patent: 3555375 (1968-11-01), Hilbers
patent: 4908694 (1990-03-01), Hidaka et al.
patent: 4996582 (1991-02-01), Nagahama
patent: 5155575 (1992-10-01), Zimmermann
patent: 5170337 (1992-12-01), Borowiec et al.
patent: 5465008 (1995-11-01), Goetz et al.
patent: 5524339 (1996-06-01), Gorowitz et al.
patent: 5548099 (1996-08-01), Cole, Jr. et al.
patent: 5602421 (1997-02-01), Li
patent: 5683943 (1997-11-01), Yamada
patent: 5939774 (1999-08-01), Yamada
patent: 6008068 (1999-12-01), Yamada
patent: 6670216 (2003-12-01), Strauch
patent: 6798060 (2004-09-01), Strauch
patent: 6943293 (2005-09-01), Jeter et al.
patent: 7105931 (2006-09-01), Attarwala
patent: 7134197 (2006-11-01), Shiffer et al.
patent: 7557434 (2009-07-01), Malhan et al.
patent: 2002/0163070 (2002-11-01), Choi
patent: 2003/0096450 (2003-05-01), Strauch
patent: 2004/0014267 (2004-01-01), Strauch
patent: 2004/0061221 (2004-04-01), Schaffer
patent: 2004/0195701 (2004-10-01), Attarwala
patent: 2005/0136569 (2005-06-01), Shiffer et al.
patent: 2005/0139990 (2005-06-01), Kim
patent: 2006/0084254 (2006-04-01), Attarwala
patent: 2007/0145473 (2007-06-01), Asano et al.
patent: 2008/0019108 (2008-01-01), Hoyer et al.
patent: 2008/0054425 (2008-03-01), Malhan et al.
patent: 2008/0054439 (2008-03-01), Malhan et al.
patent: 2008/0060743 (2008-03-01), Minamikawa et al.
patent: 2008/0237840 (2008-10-01), Alcoe et al.
patent: 2009/0146280 (2009-06-01), Shimazaki et al.
patent: 2009/0261471 (2009-10-01), Frey
patent: 0367680 (1990-05-01), None
patent: 0844663 (1998-05-01), None
patent: 1632998 (2006-03-01), None
patent: 1662565 (2006-05-01), None
patent: 1796163 (2007-06-01), None
patent: 2444293 (2008-06-01), None
patent: 2444978 (2008-06-01), None
patent: 2005062371 (2005-07-01), None
Kyocera Semiconductor Parts Power Transistor Packages, Kyocera website, 2009.
Product Information Sheet, Standard RF Packages Jul. 1998, 1998 Kyocera America, Inc., two pages.
Product Information Sheet, Standard Microwave Package Jul. 1997, 1998 Kyocera America, Inc., two pages.
Components for Wireless Communication Devices, http://global.kyocera.com/prdct/semicon/semi/wireless/index.html, downloaded from the internet, Oct. 27, 2010, Kyocera Corporation, two pages.
RF Power Transistor Packages, Components for Wireless Communication Devices, http://global.kyocera.com/prdct/semicon/semi/wireless/fet—pkg.html, downloaded from the internet, Oct. 27, 2010, Kyocera Corporation, one page.
Le Thao P.
Marger & Johnson & McCollom, P.C.
Microsemi Corporation
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