The opinion in support of the decision being entered today was not
written for publication and is not binding precedent of the Board.
Paper No. 44
UNITED STATES PATENT AND TRADEMARK OFFICE
_____________
BEFORE THE BOARD OF PATENT APPEALS
AND INTERFERENCES
_____________
Ex parte TOMOHIDE TERASHIMA and KAZUHIRO SHIMIZU
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Appeal No. 2004-0581
Application No. 09/041,105
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ON BRIEF
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Before GARRIS, WALTZ, and TIMM, Administrative Patent Judges.
GARRIS, Administrative Patent Judge.
DECISION ON APPEAL
This is a decision on an appeal which involves claims
1-4 and 10-12. Claims 5, 8 and 9 have been allowed.
The subject matter on appeal relates to a semiconductor
device having a separation structure for high withstand-voltage.
With reference to Figure 1 of the appellants’ drawing, a first
embodiment of this device (see claim 1) comprises a p-type
substrate, an n-type high density well 2, a p-type epitaxial
region 3, an n-type low density well 4 and a p-type island 5,
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