PSEUDO-EXHAUSTIVE MEMORY DEVICES TESTING BASED ON MULTIPLE MARCH TESTS 1

Abstract

Methods for modern memory devices are analyzed. The validity of using pseudo-exhaustive tests to detect complex memory faults is shown. A necessary condition for generating a pseudo-exhaustive test for a given number of memory cells is formulated. It is shown that the problem of generating a pseudo-exhaustive test based on multiple memory tests with a variable background is reduced to the combinatorial task of the coupon collector. Estimates of the mean, minimum, and maximum multiplicity of a multiple test are given to provide an exhaustive set of combinations for a given number of cells of a memory device. The validity of analytical estimates is shown experimentally and the possibility of pseudo-exhaustive memory testing is confirmed.

Keywords

• march tests
• pseudo-exhaustive tests
• coupon collector problem