Field programmable device

Details Field programmable device Field programmable device

1982-03-01

1984-12-11

Richardson, Robert L.

Static information storage and retrieval

Read only systems

Semiconductive

365105, G11C 1140

Patent

active

044882610

ABSTRACT:
A field programmable device comprises a plurality of word lines, a plurality of bit lines which are disposed in a manner to intersect the word lines, a plurality of cells which are respectively connected to the word lines and the bit lines, and a plurality voltage supply means, each of comprising a series connection of a resistor and a diode whose cathode is connected to each of the word lines. The voltage supply means supplies non-selected the word lines with a voltage high enough to prevent parasitic P-N-P-N elements, which are formed by the cells and the word lines, from turning on. Thus a programming current is hindered from flowing out of the cells.

REFERENCES:
patent: 3733690 (1973-05-01), Rizzi et al.
patent: 3742592 (1973-07-01), Rizzi et al.
patent: 4237547 (1980-12-01), Smith
patent: 4312047 (1982-01-01), Donoghue

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