Zener-zap memory

Details Zener-zap memory Zener-zap memory

2006-04-26

2008-08-26

Jackson, Stephen W (Department: 2836)

Electricity: electrical systems and devices

Safety and protection of systems and devices

With specific voltage responsive fault sensor

Reexamination Certificate

active

07417839

ABSTRACT:
In an integrated circuit for electrically permanently program information in the integrated circuit a current is driven through an NPN-transistor. The integrated circuit has a first current feeding circuit having an output connected via a resistor to the NPN-transistor, a feeding point connectable to a feeding voltage, and a control input for controlling the programming of the NPN-transistor. The integrated circuit also has at least a second current feeding circuit having an output connected to the feeding point for the first current feeding circuit, a feeding point connectable to a feeding voltage, and a control input for controlling the programming of the NPN-transistor. Finally the integrated circuit has a first voltage level controller provided to split the voltage needed to program the NPN-transistor over the first and at least second current feeding circuit.

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patent: 0 595 629 (1993-10-01), None
patent: 2003-068858 (2003-03-01), None
International Search Report; PCT/SE2004/001557; 1 Pg., Feb. 18, 2005.

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