Method for manufacturing a read only memory device using a focus

Details Method for manufacturing a read only memory device using a focus Method for manufacturing a read only memory device using a focus

1991-01-07

1992-07-14

Hearn, Brian E.

Fishing, trapping, and vermin destroying

505703, 505831, 505841, 505923, 148DIG46, H01L 2142, G11C 1144, G11C 11065

Patent

active

051302730

ABSTRACT:
A read only memory device comprises a first electrode, and a second electrode arranged overlapping with the first electrode so as to be geometrically in connection at the intersection. At least one of the first and second electrodes is formed of a ceramics system high temperature superconductor. A prescribed electrode out of said electrodes which is formed of the high temperature superconductor has a high resistance region for insulating the first and second electrodes from each other at the intersection corresponding to a prescribed stored data.
In the manufacturing method, the first and second electrodes are formed and, thereafter, a high resistance region is formed by irradiating focused ion beam.

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