Communications: electrical – Condition responsive indicating system – Specific condition
Reexamination Certificate
2011-08-23
2011-08-23
Nguyen, Phung (Department: 2612)
Communications: electrical
Condition responsive indicating system
Specific condition
Reexamination Certificate
active
08004419
ABSTRACT:
Tampering with an assembly that includes an integrated circuit is detected by measuring a change in at least one property of a conductive molding formed over at least a portion of the integrated circuit. For example, the conductive molding can be a mixture of resin with conductive powder and/or fibers. The molding can be formed as a continuous region or as strips of conductive material. Conductive contacts are positioned to provide and receive current through portions of the conductive material. For example, the property of the molding can be an impedance of a portion of the conductive molding. A significant change in the impedance measured through one or more conductive contacts indicates tampering with the assembly.
REFERENCES:
patent: 5060261 (1991-10-01), Avenier et al.
patent: 5239664 (1993-08-01), Verrier et al.
patent: 5353350 (1994-10-01), Unsworth et al.
patent: 6895509 (2005-05-01), Clark
patent: 7343496 (2008-03-01), Hsiang et al.
patent: 7489013 (2009-02-01), Chubin et al.
patent: 2004/0217472 (2004-11-01), Aisenbrey et al.
patent: 2006/0015947 (2006-01-01), Conti et al.
patent: 2007/0018334 (2007-01-01), Peytavy et al.
Roberts David Alan
Thornley Randal Quincy
Tiffany William James
Maxim Integrated Products Inc.
Nguyen Phung
North Weber & Baugh LLP
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