CCD read only memory

Details CCD read only memory CCD read only memory

1986-02-24

1990-02-20

Munson, Gene M.

Electrical pulse counters, pulse dividers, or shift registers: c

Counting or dividing in incremental steps

Beam type tube

377 60, H01L 2978, G11C 1928

Patent

active

049030973

ABSTRACT:
The specification describes a high capacity nonvolatile CCD read only memory system that includes a plurality of memory cells. Selected ones of the memory cells include a double-diffused region having a first and second implant or diffusion under a clocked electrode whereby the first implant or diffusion provides a fixed charge required for ROM operation and the charge and polarity of said second implant or diffusion provides a neutralizing effect on the surface potential under the clocked electrode and above the double implanted or double diffused region.

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