Semiconductor device manufacturing: process – Packaging or treatment of packaged semiconductor – Metallic housing or support
Reexamination Certificate
2005-02-08
2005-02-08
Nhu, David (Department: 2818)
Semiconductor device manufacturing: process
Packaging or treatment of packaged semiconductor
Metallic housing or support
C438S456000
Reexamination Certificate
active
06852574
ABSTRACT:
A method of forming a leadframe (10) provides blocking fulcrums (21,23) adjacent to the leads (12,13,14, and15). During the process of encapsulating the leadframe (10), the blocking fulcrums (21,23) restrict encapsulating material from exiting the mold cavity and from attaching to the leads (12,13,14, and15).
REFERENCES:
patent: 5059379 (1991-10-01), Tsutsumi et al.
patent: 6116963 (2000-09-01), Shutter
patent: 6518652 (2003-02-01), Takata et al.
patent: 6769936 (2004-08-01), Gutierrez et al.
Quah Guan Keng
Truhitte Darrell D.
Hightower Robert F.
Nhu David
Semiconductor Components Industries L.L.C.
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