Active solid-state devices (e.g. – transistors – solid-state diode – Integrated circuit structure with electrically isolated... – Passive components in ics
Reexamination Certificate
2006-05-02
2006-05-02
Huynh, Andy (Department: 2818)
Active solid-state devices (e.g., transistors, solid-state diode
Integrated circuit structure with electrically isolated...
Passive components in ics
C257S358000, C257S363000, C257S516000, C257S543000, C257S607000, C257S904000, C257SE29326
Reexamination Certificate
active
07038297
ABSTRACT:
Ion implanted resistors formed in the body of a crystalline silicon substrate. The resistors have a different conductivity type from that of the silicon substrate. The sheet resistance and temperature dependence of the resistor layer is determined by the dose of the implant. Temperature variation can be optimized to be less than 2% over the temperature range −40 C to +85 C.Furthermore, the temperature variation at room temperature (˜25 C) can be reduced to nearly zero.
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Liu Chun-Mai
Voorde Paul Vande
Blakely , Sokoloff, Taylor & Zafman LLP
Huynh Andy
Winbond Electronics Corporation
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