Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode
Reexamination Certificate
2006-06-27
2006-06-27
Huynh, Andy (Department: 2818)
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Having insulated electrode
C257S349000, C257S350000, C257S351000, C257S374000, C257S466000, C257S618000
Reexamination Certificate
active
07067881
ABSTRACT:
A semiconductor device and its manufacturing method are provided which can properly avoid reduction of isolation breakdown voltage without involving adverse effects like an increase in junction capacitance. Impurity-introduced regions (11) are formed after a silicon layer (3) has been thinned through formation of recesses (14). Therefore n-type impurities are not implanted into the portions of the p-type silicon layer (3) that are located between the bottoms of element isolation insulating films (5) and the top surface of a BOX layer (2), which avoids reduction of isolation breakdown voltage. Furthermore, since the impurity-introduced regions (11) are formed to reach the upper surface of the BOX layer (2), the junction capacitance of source/drain regions (12) is not increased.
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Hirano Yuuichi
Ipposhi Takashi
Iwamatsu Toshiaki
Matsumoto Takuji
Huynh Andy
Oblon & Spivak, McClelland, Maier & Neustadt P.C.
Renesas Technology Corp.
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