Testing and inspection
In memory testing, which test pattern repeats writing and reading 0s and 1s while stepping through addresses in order, detecting defects such as interference between adjacent cells?
- AIDDQ test
- BShmoo plot
- CMarch test
Show answer and explanation
Answer: C. March test
A march test is a memory test algorithm that steps through addresses in ascending or descending order, writing and reading each cell in a fixed sequence. It efficiently detects not only simple stuck-at faults but also interference between adjacent cells (coupling faults) and address decoder defects.