Active solid-state devices (e.g. – transistors – solid-state diode – Lead frame
Reexamination Certificate
2007-11-27
2007-11-27
Smith, Zandra V. (Department: 2822)
Active solid-state devices (e.g., transistors, solid-state diode
Lead frame
C438S015000, C438S064000, C438S011000, C438S123000
Reexamination Certificate
active
11364047
ABSTRACT:
A lead frame (10) for a semiconductor device includes a first row of terminals (12) surrounding a die receiving area (14) and a second row of terminals (16) spaced from and surrounding the first row of terminals (12). The first and second rows of terminals (12, 16) have a first height (H1). The terminals (12) of the first row include a step (26) that has a greater height (H2). Bond wires (36) connecting die pads (34) to the first row terminals (12) extend over the second height H2part of the terminal (12) and are attached to the first height H1part of the terminal (12). The step (26) insures that the bond wires (36) attached to the stepped terminals (12) have a high wire kink profile so that they are less susceptible to damage in later process steps.
REFERENCES:
patent: 4809135 (1989-02-01), Yerman
patent: 4894752 (1990-01-01), Murata et al.
patent: 5532905 (1996-07-01), Moore
patent: 5710064 (1998-01-01), Song et al.
patent: 5886396 (1999-03-01), Carney et al.
patent: 6104084 (2000-08-01), Ishio et al.
patent: 6348726 (2002-02-01), Bayan et al.
patent: 6545342 (2003-04-01), Abbott
patent: 6720207 (2004-04-01), Minamio et al.
patent: 6777265 (2004-08-01), Islam et al.
patent: 6864423 (2005-03-01), Tan et al.
patent: 2001/0039078 (2001-11-01), Schroen
patent: 2003/0035251 (2003-02-01), Asida et al.
patent: 2003/0168719 (2003-09-01), Cheng et al.
patent: 2006/0170081 (2006-08-01), Gerber et al.
Ho Wai Keung
Wong Fei Ying
Wong Ho Wang
Bergere Charles
Freescale Semiconductor Inc.
Green Telly D
Smith Zandra V.
LandOfFree
Multi-row lead frame does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multi-row lead frame, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-row lead frame will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3873061