Wilcox Steev,Foutz Brian Edward,Chakravadhanula Krishna Vijaya,Chickermane Vivek,Cunningham Paul Alexander
申请号：
US201514738765
公开号：
US9470756(B1)
申请日:
2015.06.12
申请国别(地区):
美国
年份:
2016
代理人:
Kenyon & Kenyon LLP
摘要：
Methods, systems, and integrated circuits for decompressing a set of scan input data in a Design for Test (DFT) application, in which implementation may include determining a number of scan inputs to applied circuit from automated test equipment (ATE). Based on the number of scan inputs, another aspect of implementation may involve generating a 2-dimensional grid on the integrated circuit (IC). Another implementation aspect may involve decompressing the scan inputs from the ATE according to decompression logic that is sequentially distributed such that the grid can locally apply the last stage of the decompression logic. In accordance with aspects of the method, the physical structure of an IC decompression logic is more accessible to individual scan chains and reduces congestion on board the IC.
