Active solid-state devices (e.g. – transistors – solid-state diode – Lead frame – With dam or vent for encapsulant
Reexamination Certificate
2005-09-12
2008-10-28
Smith, Zandra (Department: 2822)
Active solid-state devices (e.g., transistors, solid-state diode
Lead frame
With dam or vent for encapsulant
C257SE23043
Reexamination Certificate
active
07443012
ABSTRACT:
A method of manufacturing a semiconductor device includes the steps of, (1) preparing a conductive substrate having a main surface and a back surface opposite to the main surface, (2) forming at the main surface of the conductive substrate a plurality of first grooves, which are parallel to each other, and forming at the main surface of the conductive substrate a plurality of second grooves, which are parallel to each other, and which are perpendicular to the first grooves, (3) fixing a semiconductor chip to the main surface of the conductive substrate, (4) encapsulating the semiconductor chip with resin by introducing the resin onto the main surface of the conductive substrate, the resin entering into the first and the second grooves and (5) polishing the back surface of the conductive substrate until the resin formed in the first and the second grooves are exposed.
REFERENCES:
patent: 6001671 (1999-12-01), Fjelstad
patent: 6159770 (2000-12-01), Tetaka et al.
patent: 6348726 (2002-02-01), Bayan et al.
patent: 6498392 (2002-12-01), Azuma
patent: 6706547 (2004-03-01), Sakamoto et al.
patent: 2001/0045625 (2001-11-01), Sakamoto et al.
patent: 2006/0145344 (2006-07-01), Shimanuki
patent: 2008/0135992 (2008-06-01), Takahashi
patent: 11-195733 (1999-07-01), None
patent: 2000-243862 (2000-09-01), None
patent: 2000-252388 (2000-09-01), None
patent: 2000-252389 (2000-09-01), None
patent: 2000-252390 (2000-09-01), None
patent: 2001-210743 (2001-08-01), None
Mimura Junichi
Oki Electric Industry Co. Ltd.
Perkins Pamela E
Smith Zandra
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