Built-In Test and Diagnosis for TSVs With Different Placement Topologies and Crosstalk Impact Ranges

Through silicon vias (TSVs) play an important role in 3-D chip integration. Effective and efficient testing for correct operation of TSVs is essential for 3-D integrated circuit design. This paper addresses the post-bond test and diagnosis of crosstalk faults among TSVs considering different impact ranges, and proposes a TSV grouping method for rectangular and hexagonal TSV placements such that as many TSVs as possible are tested simultaneously. Based on the results of the TSV grouping, we implement a high-efficiency, low-area-overhead TSV test architecture that reuses the existing boundary scan or IEEE 1500 wrapper cells typically present for prebond testing. Experimental results show the short test and diagnosis time as well as the low area overhead of the proposed test architecture.