Miscellaneous active electrical nonlinear devices – circuits – and – Specific identifiable device – circuit – or system – Fusible link or intentional destruct circuit
Patent
1997-07-31
1999-12-07
Cunningham, Terry D.
Miscellaneous active electrical nonlinear devices, circuits, and
Specific identifiable device, circuit, or system
Fusible link or intentional destruct circuit
3652257, G11C 700
Patent
active
059990376
ABSTRACT:
A circuit for enabling a controlled transistor in response to an ablated fusible link. The fusible link is configured so that no d.c. potential resides on the link once it has been ablated. A source of alternating voltage is capacitively coupled to the fusible link and maintains the fusible link from reconnection due to dendrite formation once it is ablated. An a.c. to d.c. voltage converter is used to signal the change in condition of the fusible link, thus, actuating a control transistor of a redundant circuit element in a replacement operation.
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Bernstein Kerry
Edelstein Daniel C.
Klaasen William A.
Pricer Wilbur D.
Adolphe Eunja
Cunningham Terry D.
International Business Machines - Corporation
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