Microcircuit with memory that is protected by both hardware and

Details Microcircuit with memory that is protected by both hardware and Microcircuit with memory that is protected by both hardware and

1996-07-19

1999-12-07

Monin, Jr., Donald L.

Active solid-state devices (e.g., transistors, solid-state diode

Housing or package

257704, 257708, 257709, 257922, 361740, 361747, H01L 2302

Patent

active

059988584

ABSTRACT:
A secure electronic data module containing a monolithic semiconductor chip of the type having a memory that is protected by a combination of hardware and software mechanisms such that unauthorized access to the data stored in the memory is prevented. The monolithic semiconductor chip comprises a plurality of solder bumps for attaching the chip to a substrate that may be a printed circuit board or another chip; a multi-level interlaced power and ground lines using minimum geometries; and a detection circuit block for detecting an external trip signal that may be produced by a pre-specified change in an operating condition brought on by unauthorized accessing, or an internal trip signal that may be produced by shorting of power and ground lines or by a change in an oscillator's frequency, also associated with or appurtenant to unauthorized accessing of the secure memory.

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