Active solid-state devices (e.g. – transistors – solid-state diode – Lead frame – With separate tie bar element or plural tie bars
Reexamination Certificate
2008-07-03
2009-08-18
Clark, Jasmine J (Department: 2815)
Active solid-state devices (e.g., transistors, solid-state diode
Lead frame
With separate tie bar element or plural tie bars
C257S674000, C257S696000, C257SE23037, C257SE23042, C257SE23046, C257SE23050
Reexamination Certificate
active
07576418
ABSTRACT:
A lead frame structure comprises a side rail, a first paddle, a second paddle, a plurality of leads, and an downset anchor bar. The first paddle is connected to the side rail via at least one first tie bar, and the second paddle is connected to the side rail via at least one-second tie bar. The first paddle and the second paddle separated from each other are used to define an area to support a chip. These leads set on the side rail expends toward to the chip supporting area. One end of the downset anchor bar is connected to the side rail, and the other end of the downset anchor bar has a protrusion portion which is between the first paddle and the second paddle and is downset from the side rail.
REFERENCES:
patent: 5430250 (1995-07-01), Kwon
patent: 6809408 (2004-10-01), Yu et al.
Chang En-Shou
Chen Chia-Yu
Cheng I-Chi
Pong Ta-Lin
Su Chen-Ping
Clark Jasmine J
Muncy Geissler Olds & Lowe, PLLC
Orient Semiconductor Electronics Ltd.
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