Varied-thickness heat sink for integrated circuit (IC)...

Semiconductor device manufacturing: process – Packaging or treatment of packaged semiconductor – Metallic housing or support

Reexamination Certificate

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Reexamination Certificate

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07125749

ABSTRACT:
An integrated circuit package includes a package body, such as a transfer molded plastic or preformed ceramic package body, having an integrated circuit die positioned therein. A lead frame, such as a peripheral lead, Leads-Over-Chip (LOC), or Leads-Under-Chip (LUC) lead frame, includes a plurality of leads with portions enclosed within the package body that electrically connect to the integrated circuit die. A heat sink is positioned at least partially within the package body so a surface of a first portion of the heat sink faces the lead frame in close proximity to a substantial part, such as at least eighty percent, of the area of the enclosed portion of the lead frame to thereby substantially reduce an inductance associated with each of the leads.

REFERENCES:
patent: 4024570 (1977-05-01), Hartmann et al.
patent: 4594641 (1986-06-01), Hernandez
patent: 4628411 (1986-12-01), Balderes et al.
patent: 4868635 (1989-09-01), Frechette et al.
patent: 4937656 (1990-06-01), Kohara
patent: 4950427 (1990-08-01), Endo
patent: 5012323 (1991-04-01), Farnworth
patent: 5049976 (1991-09-01), Demmin et al.
patent: 5089878 (1992-02-01), Lee
patent: 5113240 (1992-05-01), Bozzini et al.
patent: 5150194 (1992-09-01), Brooks et al.
patent: 5193053 (1993-03-01), Sonobe
patent: 5200809 (1993-04-01), Kwon
patent: 5214845 (1993-06-01), King et al.
patent: 5221858 (1993-06-01), Higgins, III
patent: 5227663 (1993-07-01), Patil et al.
patent: 5233220 (1993-08-01), Lamson et al.
patent: 5276352 (1994-01-01), Komenaka et al.
patent: 5287000 (1994-02-01), Takahashi et al.
patent: 5299092 (1994-03-01), Yaguchi et al.
patent: 5305186 (1994-04-01), Appelt et al.
patent: 5343074 (1994-08-01), Higgins, III et al.
patent: 5378924 (1995-01-01), Liang
patent: 5379187 (1995-01-01), Lee et al.
patent: 5387554 (1995-02-01), Liang
patent: 5396701 (1995-03-01), Russell
patent: 5436500 (1995-07-01), Park et al.
patent: 5444602 (1995-08-01), Banerjee et al.
patent: 5483098 (1996-01-01), Joiner, Jr.
patent: 5498901 (1996-03-01), Chillara et al.
patent: 5508556 (1996-04-01), Lin
patent: 5530295 (1996-06-01), Mehr
patent: 5541446 (1996-07-01), Kierse
patent: 5559306 (1996-09-01), Mahulikar
patent: 5576246 (1996-11-01), Conru et al.
patent: 5583377 (1996-12-01), Higgins, III
patent: 5589420 (1996-12-01), Russell
patent: 5594282 (1997-01-01), Otsuki
patent: 5596231 (1997-01-01), Combs
patent: 5598034 (1997-01-01), Wakefield
patent: 5648681 (1997-07-01), Takashima et al.
patent: 5659200 (1997-08-01), Sono et al.
patent: 5686361 (1997-11-01), Ootsuki
patent: 5696031 (1997-12-01), Wark
patent: 5701034 (1997-12-01), Marrs
patent: 5719442 (1998-02-01), Otsuki
patent: 5736785 (1998-04-01), Chiang et al.
patent: 5805513 (1998-09-01), Takahashi et al.
patent: 5872395 (1999-02-01), Fujimoto
patent: 5955777 (1999-09-01), Corisis et al.
patent: 5977626 (1999-11-01), Wang et al.
patent: 5982027 (1999-11-01), Corisis
patent: 6025640 (2000-02-01), Yagi et al.
patent: 6133622 (2000-10-01), Corisis et al.
patent: 6159764 (2000-12-01), Kinsman et al.
patent: 6184575 (2001-02-01), Chillara et al.

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