High Performance Compaction for Test Responses with many Unknowns
We present a new compactor architecture for extreme compaction of test responses with a high percentage of x-values. The test response data is compacted into a single, 1-bit wide bit stream. A major contribution of this work is a new technique to efficiently load x-masking data into a masking logic. A method eliminating the need for explicit mask control signals using ATE timing flexibility is also introduced. The proposed compactor can efficiently be employed in multi-chip testing. Experiments with industrial designs show that the proposed compactor enables compaction ratios exceeding 200x.
x-values x-masking response compaction
Thomas Rabenalt Michael Richter Michael Goessel
University of Potsdam Department of Computer Science Potsdam, Germany
国际会议
2010 19th IEEE Asian Test Symposium(第19届IEEE亚洲测试技术学术会议 ATS 2010)
上海
英文
179-184
2010-12-01(万方平台首次上网日期,不代表论文的发表时间)