An Approach to Highly Integrated, Computer-Maintained Cellular Arrays
- 1 June 1977
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Transactions on Computers
- Vol. C-26 (6) , 536-552
- https://doi.org/10.1109/tc.1977.1674879
Abstract
This paper presents an LSI-oriented approach to computer-maintained rectangular arrays of programmable logic. No signal line connects more than a few cells. A loading mechanism in each cell allows a computer directly connected to one cell to load any good cell that is not walled off by flawed cells. A loading arm is grown by programming cells to form a path that carries loading information. Cell mechanisms allow a computer to monitor the growth of a loading arm, and to change the arm's route or retract the arm to avoid faulty cells. Properly loaded cells carry test signals between a tested cell and a testing computer directly connected to only a few cells. The computer discovers the faulty cells in an array, and repairs the array by loading the array's good cells. This allows a computer to embed a perfect, very reliable digital machine on an entire flawed semiconductor wafer.Keywords
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