The growing use of FPGA circuits has made it necessary to perform accurate
debug and internal testing of these circuits. To meet this challenge, we ha
ve developed an innovative method which makes it possible to use existing E
lectron Beam Testers to investigate the internal functionality of programma
ble circuits. This approach is based on the generation of a circuit layout
linked to the electrical schematic for contactless measurement on the circu
it. (C) 1999 Elsevier Science Ltd. All rights reserved.