Duane Morris LLP
Bidirectional scan chain structure and method
A bi-directional scan chain includes a plurality of cell structures, each cell structure having a storage device and at least one multiplexer, the plurality of cell structures coupled to one another in a series configuration, wherein an output of a (K−1)-th cell structure is provided as input to the K-th cell structure to provide a forward data shifting operation, and an output of the K-th cell structure is provided as an input to the (K−1)-th cell structure to provide a backward data shifting operation, where K is an integer greater than 1.
Taiwan Semiconductor Manufacturing Co., Ltd.
G G
G01R G01R
inventional inventional
Yun-Han Sandeep Kumar
Lee Goel