Active solid-state devices (e.g. – transistors – solid-state diode – Lead frame
Reexamination Certificate
2005-06-28
2005-06-28
Nelms, David (Department: 2818)
Active solid-state devices (e.g., transistors, solid-state diode
Lead frame
C257S670000, C257S679000, C257S680000, C438S123000, C438S106000
Reexamination Certificate
active
06911718
ABSTRACT:
In accordance with the present invention, there is provided a memory card which is fabricated through the use of a leadframe comprising an outer dambar defining a central opening, and an inner dambar which is disposed within the central opening. The leadframe further includes a plurality of contacts which are disposed within the central opening and attached to the outer dambar. Disposed within the central opening is at least one die pad, with a plurality of conductive traces extending from respective ones of the contacts toward the die pad. At least one tie bar is attached to and extends between the die pad and each of the outer and inner dambars. The tie bar has at least two downsets formed therein such that the die pad, the outer dambar, and the inner dambar extend along respective ones of at least three spaced, generally parallel planes, the plane of the inner dambar being disposed between the planes of the die pad and the outer dambar.
REFERENCES:
patent: 3668299 (1972-06-01), Mc Neal
patent: 4532419 (1985-07-01), Takeda
patent: 4905124 (1990-02-01), Banjo et al.
patent: 4974120 (1990-11-01), Kodai et al.
patent: 5172214 (1992-12-01), Casto
patent: 5360992 (1994-11-01), Lowrey et al.
patent: 5574309 (1996-11-01), Papapietro et al.
patent: 5742479 (1998-04-01), Asakura
patent: 5753532 (1998-05-01), Sim
patent: 5784259 (1998-07-01), Asakura
patent: 5822190 (1998-10-01), Iwasaki
patent: 5977613 (1999-11-01), Takata et al.
patent: 6040622 (2000-03-01), Wallace
patent: 6060339 (2000-05-01), Akram et al.
patent: 6143981 (2000-11-01), Glenn
patent: D445096 (2001-07-01), Wallace
patent: D446525 (2001-08-01), Okamoto et al.
patent: 6384472 (2002-05-01), Huang
patent: 6410355 (2002-06-01), Wallace
patent: 6476469 (2002-11-01), Hung et al.
patent: 6545332 (2003-04-01), Huang
patent: 6603196 (2003-08-01), Lee et al.
patent: 6624005 (2003-09-01), Di Caprio et al.
patent: 2001/0052637 (2001-12-01), Akram et al.
patent: 2002/0140068 (2002-10-01), Lee
patent: 3112688 (1991-05-01), None
patent: 7017175 (1995-01-01), None
patent: 8190615 (1996-07-01), None
patent: 10334205 (1998-12-01), None
Alegre Sherwin
Antivola Febie
Echegoyen Jaime H.
Romero Rommel B.
Amkor Technology Inc.
Nelms David
Stetina Brunda Garred & Brucker
Tran Long
LandOfFree
Double downset double dambar suspended leadframe does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Double downset double dambar suspended leadframe, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Double downset double dambar suspended leadframe will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3509140