Semiconductor device manufacturing: process – Packaging or treatment of packaged semiconductor – Metallic housing or support
Reexamination Certificate
2010-07-21
2011-10-18
Dang, Phuc (Department: 2892)
Semiconductor device manufacturing: process
Packaging or treatment of packaged semiconductor
Metallic housing or support
C438S123000, C438S126000, C257S673000, C257S676000
Reexamination Certificate
active
08039319
ABSTRACT:
A method for making a quad flat non-lead (QFN) semiconductor package includes half etching a first side of a carrier to form top portions of a lead array and a die attach surface of a die attach pad, wherein the lead array includes at least one inner terminal lead disposed adjacent to the die attach pad, at least one extended, outer terminal lead disposed along periphery of the QFN semiconductor package, and at least one intermediary terminal disposed between the inner terminal lead and the extended, outer terminal lead, wherein the intermediary terminal is disposed between the inner terminal lead and the extended, outer terminal lead.
REFERENCES:
patent: 6238952 (2001-05-01), Lin
patent: 6258893 (2001-07-01), Okayama
patent: 6261864 (2001-07-01), Jung
patent: 6306685 (2001-10-01), Liu
patent: 6333252 (2001-12-01), Jung
patent: 6342730 (2002-01-01), Jung
patent: 6495909 (2002-12-01), Jung
patent: 6507115 (2003-01-01), Hofstee et al.
patent: 6621140 (2003-09-01), Gibson
patent: 6642627 (2003-11-01), Song et al.
patent: 6700188 (2004-03-01), Lin
patent: 6861295 (2005-03-01), Jung
patent: 6906414 (2005-06-01), Zhao
patent: 7060535 (2006-06-01), Sirinorakul et al.
patent: 7307347 (2007-12-01), Yagi
patent: 7361984 (2008-04-01), Wu et al.
patent: 7471034 (2008-12-01), Schlote-Holubek et al.
patent: 2004/0178483 (2004-09-01), Hsu et al.
patent: 3167872 (1991-07-01), None
Chen Nan-Cheng
Hsieh Tung-Hsien
Dang Phuc
Hsu Winston
Margo Scott
Mediatek Inc.
LandOfFree
Method for fabricating QFN semiconductor package does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for fabricating QFN semiconductor package, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for fabricating QFN semiconductor package will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4289045