Active solid-state devices (e.g. – transistors – solid-state diode – Field effect device – Having insulated electrode
Reexamination Certificate
2006-11-28
2006-11-28
Flynn, Nathan J. (Department: 3663)
Active solid-state devices (e.g., transistors, solid-state diode
Field effect device
Having insulated electrode
C257S347000
Reexamination Certificate
active
07141855
ABSTRACT:
A dual-thickness active device layer SOI chip structure is provided. The SOI chip structure has an active device layer, at least one oxide region located at a predetermined position of the active device layer and with a first predetermined depth, at least one trench surrounding the oxide region and having a second predetermined depth greater than the first predetermined depth, and a ground layer connected to the active device layer and the oxide region. The SOI structure further has a first silicon-based wafer and a second wafer. Both wafers are bonded together by wafer bonding. At least two different active device layer thicknesses exist to meet requirements of a wide variety of SOI devices placed thereon, with the setting of the oxide region filled with thermal oxide or other oxide variations.
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patent: 2002/0153911 (2002-10-01), Cho et al.
patent: 2002/0175378 (2002-11-01), Choe et al.
patent: 2005/0189589 (2005-09-01), Zhu et al.
Mondt Johannes
Via Technologies Inc.
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