The opinion in support of the decision being entered today was not written for
publication and is not binding precedent of the Board.
UNITED STATES PATENT AND TRADEMARK OFFICE
_____________
BEFORE THE BOARD OF PATENT APPEALS
AND INTERFERENCES
_____________
Ex parte SHIGENOBU MAEDA,
TOSHIAKI IWAMATSU and
TAKASHI IPPOSHI
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Appeal No. 2005-1256
Application No. 09/988,593
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ON BRIEF
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Before KRASS, NASE and KRATZ, Administrative Patent Judges.
KRASS, Administrative Patent Judge.
DECISION ON APPEAL
This is a decision on appeal from the final rejection of claims 1-9.
The invention is directed to a semiconductor device having an impurity region
under an isolation region. The invention seeks to solve the prior art problem wherein
source/drain impurity ions deposited in a well region, below a partial oxide film, would
change the resistance value of the body resistance of the well region. This would cause
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