Chauchin Su, Dept. of Electr. Eng., Nat. Central Univ., Chung-Li, Taiwan
Shyh-Shen Hwang, Dept. of Electr. Eng., Nat. Central Univ., Chung-Li, Taiwan
Shyh-Jye Jou, Dept. of Electr. Eng., Nat. Central Univ., Chung-Li, Taiwan
Yuan-Tzu Ting, Dept. of Electr. Eng., Nat. Central Univ., Chung-Li, Taiwan
In this paper, we present a syndrome test methodology for the testing of unscanned interconnects in a boundary scan environment. Mathematical equations are derived for the relationship of test length, fault-free and faulty syndromes, and tolerable error rate. To calculate fault-free and faulty syndromes, we propose an event driven syndrome simulation algorithm. To shorten testing time and reduce test cost, we transform and solve the problem as a set covering problem.
Index Terms:
boundary scan testing; unscanned interconnects; syndrome test methodology; event driven syndrome simulation; boundary scan environment; test length; faulty syndromes; fault-free syndromes; simulation algorithm; test cost reduction; set covering problem; tolerable error rate; partially scanned PCB; MCM; test pattern generation; weighted random patterns; board level testing
Citation:
Chauchin Su, Shyh-Shen Hwang, Shyh-Jye Jou, Yuan-Tzu Ting, "Syndrome Simulation And Syndrome Test For Unscanned Interconnects," ats, pp.62, Fifth Asian Test Symposium (ATS'96), 1996