04809231 is referenced by 61 patents and cites 2 patents.

A method and apparatus for post-packaging testing of one-time programmable memories provides means for assuring that each cell of the memory will appear to a customer to be erased and that it is capable of being programmed. The preferred embodiment of the invention is a microcomputer including one-time programmable memory, but the invention also includes memory-only devices. Marginal reading method and apparatus provide for detecting the threshold voltage of memory cells below the level at which the cell appears to the customer to be erased and marginal programming method and apparatus provide for slightly increasing the threshold voltage of cells in order to ensure their programmability.

Title
Method and apparatus for post-packaging testing of one-time programmable memories
Application Number
7/119528
Publication Number
4809231
Application Date
November 12, 1987
Publication Date
February 28, 1989
Inventor
Robert W Sparks
Austin
TX, US
Paul E Grimme
Dripping Springs
TX, US
Hiroyuki Oka
Tokyo
JP
Paul D Shannon
Austin
TX, US
Agent
Jonathan P Meyer
Assignee
Motorola
IL, US
IPC
G11C 13/00
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