Active solid-state devices (e.g. – transistors – solid-state diode – Lead frame – With structure for mounting semiconductor chip to lead frame
Reexamination Certificate
2011-08-02
2011-08-02
Andújar, Leonardo (Department: 2826)
Active solid-state devices (e.g., transistors, solid-state diode
Lead frame
With structure for mounting semiconductor chip to lead frame
C257S692000
Reexamination Certificate
active
07989933
ABSTRACT:
In accordance with the present invention, there is provided a semiconductor package (e.g., a QFP package) including a uniquely configured leadframe sized and configured to maximize the available number of exposed leads in the semiconductor package. More particularly, the semiconductor package of the present invention includes a generally planar die pad or die paddle defining multiple peripheral edge segments. In addition, the semiconductor package includes a plurality of leads. Some of these leads include exposed bottom surface portions which are provided in at least two concentric rows or rings which at least partially circumvent the die pad, with other leads including portions which protrude from respective side surfaces of a package body of the semiconductor package. Connected to the top surface of the die pad is at least one semiconductor die which is electrically connected to at least some of the leads. At least portions of the die pad, the leads, and the semiconductor die are encapsulated by the package body, with at least portions of the bottom surfaces of the die paddle and some of the leads being exposed in a common exterior surface of the package body.
REFERENCES:
patent: 2596993 (1952-05-01), Gookin
patent: 3435815 (1969-04-01), Forcier
patent: 3734660 (1973-05-01), Davies et al.
patent: 3838984 (1974-10-01), Crane et al.
patent: 4054238 (1977-10-01), Lloyd et al.
patent: 4189342 (1980-02-01), Kock
patent: 4221925 (1980-09-01), Finley et al.
patent: 4258381 (1981-03-01), Inaba
patent: 4289922 (1981-09-01), Devlin
patent: 4301464 (1981-11-01), Otsuki et al.
patent: 4332537 (1982-06-01), Slepcevic
patent: 4417266 (1983-11-01), Grabbe
patent: 4451224 (1984-05-01), Harding
patent: 4530152 (1985-07-01), Roche et al.
patent: 4541003 (1985-09-01), Otsuka et al.
patent: 4646710 (1987-03-01), Schmid et al.
patent: 4707724 (1987-11-01), Suzuki et al.
patent: 4727633 (1988-03-01), Herrick
patent: 4737839 (1988-04-01), Burt
patent: 4756080 (1988-07-01), Thorpe, Jr. et al.
patent: 4812896 (1989-03-01), Rothgery et al.
patent: 4862245 (1989-08-01), Pashby et al.
patent: 4862246 (1989-08-01), Masuda et al.
patent: 4907067 (1990-03-01), Derryberry
patent: 4920074 (1990-04-01), Shimizu et al.
patent: 4935803 (1990-06-01), Kalfus et al.
patent: 4942454 (1990-07-01), Mori et al.
patent: 4987475 (1991-01-01), Sclesinger et al.
patent: 5018003 (1991-05-01), Yasunaga et al.
patent: 5029386 (1991-07-01), Chao et al.
patent: 5041902 (1991-08-01), McShane
patent: 5057900 (1991-10-01), Yamazaki
patent: 5059379 (1991-10-01), Tsutsumi et al.
patent: 5065223 (1991-11-01), Matsuki et al.
patent: 5070039 (1991-12-01), Johnson et al.
patent: 5087961 (1992-02-01), Long et al.
patent: 5091341 (1992-02-01), Asada et al.
patent: 5096852 (1992-03-01), Hobson et al.
patent: 5118298 (1992-06-01), Murphy
patent: 5122860 (1992-06-01), Kichuchi et al.
patent: 5134773 (1992-08-01), LeMaire et al.
patent: 5151039 (1992-09-01), Murphy
patent: 5157475 (1992-10-01), Yamaguchi
patent: 5157480 (1992-10-01), McShane et al.
patent: 5168368 (1992-12-01), Gow, 3rd et al.
patent: 5172213 (1992-12-01), Zimmerman
patent: 5172214 (1992-12-01), Casto
patent: 5175060 (1992-12-01), Enomoto et al.
patent: 5200362 (1993-04-01), Lin et al.
patent: 5200809 (1993-04-01), Kwon
patent: 5202577 (1993-04-01), Ichigi et al.
patent: 5214845 (1993-06-01), King et al.
patent: 5216278 (1993-06-01), Lin et al.
patent: 5218231 (1993-06-01), Kudo
patent: 5221642 (1993-06-01), Burns
patent: 5250841 (1993-10-01), Sloan et al.
patent: 5252853 (1993-10-01), Michii
patent: 5258094 (1993-11-01), Furui et al.
patent: 5266834 (1993-11-01), Nishi et al.
patent: 5273938 (1993-12-01), Lin et al.
patent: 5277972 (1994-01-01), Sakumoto et al.
patent: 5278446 (1994-01-01), Nagaraj et al.
patent: 5279029 (1994-01-01), Burns
patent: 5281849 (1994-01-01), Singh Deo et al.
patent: 5285352 (1994-02-01), Pastore et al.
patent: 5294897 (1994-03-01), Notani et al.
patent: 5327008 (1994-07-01), Djennas et al.
patent: 5332864 (1994-07-01), Liang et al.
patent: 5335771 (1994-08-01), Murphy
patent: 5336931 (1994-08-01), Juskey et al.
patent: 5343076 (1994-08-01), Katayama et al.
patent: 5358905 (1994-10-01), Chiu
patent: 5365106 (1994-11-01), Watanabe
patent: 5381042 (1995-01-01), Lerner et al.
patent: 5391439 (1995-02-01), Tomita et al.
patent: 5406124 (1995-04-01), Morita et al.
patent: 5410180 (1995-04-01), Fujii et al.
patent: 5414299 (1995-05-01), Wang et al.
patent: 5417905 (1995-05-01), LeMaire et al.
patent: 5424576 (1995-06-01), Djennas et al.
patent: 5428248 (1995-06-01), Cha
patent: 5434057 (1995-07-01), Bindra et al.
patent: 5444301 (1995-08-01), Song et al.
patent: 5451715 (1995-09-01), Hundt et al.
patent: 5452511 (1995-09-01), Chang
patent: 5454905 (1995-10-01), Fogelson
patent: 5467032 (1995-11-01), Lee
patent: 5474958 (1995-12-01), Djennas et al.
patent: 5484274 (1996-01-01), Neu
patent: 5493151 (1996-02-01), Asada et al.
patent: 5508556 (1996-04-01), Lin
patent: 5517056 (1996-05-01), Bigler et al.
patent: 5521429 (1996-05-01), Aono et al.
patent: 5528076 (1996-06-01), Pavio
patent: 5534467 (1996-07-01), Rostoker
patent: 5539251 (1996-07-01), Iverson et al.
patent: 5543657 (1996-08-01), Diffenderfer et al.
patent: 5544412 (1996-08-01), Romero et al.
patent: 5545923 (1996-08-01), Barber
patent: 5581122 (1996-12-01), Chao et al.
patent: 5592019 (1997-01-01), Ueda et al.
patent: 5592025 (1997-01-01), Clark et al.
patent: 5594274 (1997-01-01), Suetaki
patent: 5595934 (1997-01-01), Kim
patent: 5604376 (1997-02-01), Hamburgen et al.
patent: 5608265 (1997-03-01), Kitano et al.
patent: 5608267 (1997-03-01), Mahulikar et al.
patent: 5625222 (1997-04-01), Yoneda et al.
patent: 5633528 (1997-05-01), Abbott et al.
patent: 5637922 (1997-06-01), Fillion et al.
patent: 5639990 (1997-06-01), Nishihara et al.
patent: 5640047 (1997-06-01), Nakashima
patent: 5641997 (1997-06-01), Ohta et al.
patent: 5643433 (1997-07-01), Fukase et al.
patent: 5644169 (1997-07-01), Chun
patent: 5646831 (1997-07-01), Manteghi
patent: 5650663 (1997-07-01), Parthasarathi
patent: 5661088 (1997-08-01), Tessier et al.
patent: 5665996 (1997-09-01), Williams et al.
patent: 5673479 (1997-10-01), Hawthorne
patent: 5683806 (1997-11-01), Sakumoto et al.
patent: 5683943 (1997-11-01), Yamada
patent: 5689135 (1997-11-01), Ball
patent: 5696666 (1997-12-01), Miles et al.
patent: 5701034 (1997-12-01), Marrs
patent: 5703407 (1997-12-01), Hori
patent: 5710064 (1998-01-01), Song et al.
patent: 5723899 (1998-03-01), Shin
patent: 5724233 (1998-03-01), Honda et al.
patent: 5726493 (1998-03-01), Yamashita
patent: 5736432 (1998-04-01), Mackessy
patent: 5745984 (1998-05-01), Cole, Jr. et al.
patent: 5753532 (1998-05-01), Sim
patent: 5753977 (1998-05-01), Kusaka et al.
patent: 5766972 (1998-06-01), Takahashi et al.
patent: 5767566 (1998-06-01), Suda
patent: 5770888 (1998-06-01), Song et al.
patent: 5776798 (1998-07-01), Quan et al.
patent: 5783861 (1998-07-01), Son
patent: 5801440 (1998-09-01), Chu et al.
patent: 5814877 (1998-09-01), Diffenderfer et al.
patent: 5814881 (1998-09-01), Alagaratnam et al.
patent: 5814883 (1998-09-01), Sawai et al.
patent: 5814884 (1998-09-01), Davies et al.
patent: 5817540 (1998-10-01), Wark
patent: 5818105 (1998-10-01), Kouda
patent: 5821457 (1998-10-01), Mosley et al.
patent: 5821615 (1998-10-01), Lee
patent: 5834830 (1998-11-01), Cho
patent: 5835988 (1998-11-01), Ishii
patent: 5844306 (1998-12-01), Fujita et al.
patent: 5854511 (1998-12-01), Shin et al.
patent: 5854512 (1998-12-01), Manteghi
patent: 5856911 (1999-01-01), Riley
patent: 5859471 (1999-01-01), Kuraishi et al.
patent: 5866939 (1999-02-01), Shin et al.
patent: 5866942 (1999-02-01), Suzuki et al.
patent: 5871782 (1999-02-01), Choi
patent: 5874784 (1999-02-01), Aoki et al.
patent: 5877043 (1999-03-01), Alcoe et al.
patent: 5877542 (1999-03-01), Ohuchi
patent: 5886397 (1999-03-01), Ewer
patent: 5973935 (1999-10-01), Schoenfeld et al.
patent: 5977630 (1999-11-01), Woodworth et al.
patent: RE36773 (2000-07-01), Nomi et al.
patent: 6087718 (2000-07-01), Cho
patent: 6107679 (2000-08-01), Noguchi
patent: 6143981 (2000-11-01),
Choi Yeon Ho
Kim Gi Jeong
Kim Wan Jong
Amkor Technology Inc.
Andújar Leonardo
Klein Jordan
Stetina Brunda Garred & Brucker
LandOfFree
Increased I/O leadframe and semiconductor device including same does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Increased I/O leadframe and semiconductor device including same, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Increased I/O leadframe and semiconductor device including same will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2671065