Active solid-state devices (e.g. – transistors – solid-state diode – Integrated circuit structure with electrically isolated... – Passive components in ics
Reexamination Certificate
2011-08-02
2011-08-02
Hoang, Quoc D (Department: 2892)
Active solid-state devices (e.g., transistors, solid-state diode
Integrated circuit structure with electrically isolated...
Passive components in ics
C257SE23071, C257SE27016, C257SE51008
Reexamination Certificate
active
07989918
ABSTRACT:
A method and tamper detection circuit for implementing tamper and anti-reverse engineering evident detection in a semiconductor chip, and a design structure on which the subject circuit resides are provided. A capacitor is formed with the semiconductor chip including the circuitry to be protected. A change in the capacitor value results responsive to the semiconductor chip being thinned, which is detected and a tamper-detected signal is generated.
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Bartley Gerald Keith
Christensen Todd Alan
Dahlen Paul Eric
Sheets, II John Edward
Hoang Quoc D
International Business Machines - Corporation
Pennington Joan
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