Lead frame structure and applications thereof
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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Aug 18, 2009
Grant Date -
May 14, 2009
app pub date -
Jul 3, 2008
filing date -
Nov 12, 2007
priority date (Note) -
Expired
status (Latency Note)
Importance
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.
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