Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – With current flow along specified crystal axis
Reexamination Certificate
2009-01-28
2010-11-30
Nguyen, Cuong Q (Department: 2811)
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
With current flow along specified crystal axis
C257S347000, C257S351000, C257SE29004
Reexamination Certificate
active
07842982
ABSTRACT:
A semiconductor device includes a semiconductor substrate having, on a surface thereof, a (110) surface of Si1-xGex(0.25≦x≦0.90), and n-channel and p-channel MISFETs formed on the (110) surface, each MISFET having a source region, a channel region and a drain region. Each MISFET has a linear active region which is longer in a [−110] direction than in a [001] direction and which has a facet of a (311) or (111) surface, the source region, the channel region and the drain region are formed in this order or in reverse order in the [−110] direction of the linear active region, the channel region of the n-channel MISFET is formed of Si and having uniaxial tensile strain in the [−110] direction, and the channel region of the p-channel MISFET being formed of Si1-yGey(x<y≦1) and having uniaxial compressive strain in the [−110] direction.
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Search Report (with English translation) dated Mar. 16, 2010 from corresponding Japanese Application No. 2008-018106.
Moriyama Yoshihiko
Sugiyama Naoharu
Kabushiki Kaisha Toshiba
Nguyen Cuong Q
Ohlandt Greeley Ruggiero & Perle L.L.P.
Tran Trang Q
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