Patent ID: 7409614

Claim:
A method comprising: verifying at least one external signal path of an electronic package environment by concurrently testing an input/output (I/O) circuit of an integrated circuit of the electronic package environment while testing the integrated circuit using a logic built-in self test (LBIST) of the integrated circuit, the at least one external signal path being electrically coupled to the I/O circuit, and the concurrently testing producing a signature test result of the integrated circuit; wherein the signature test result further characterizes a response of the I/O circuit to the LBIST, and the verifying the at least one external signal path employs the signature test result produced using the LBIST; and wherein the verifying further comprises concurrently testing at least another I/O circuit of at least another integrated circuit of the electronic package environment while testing the at least another integrated circuit using at least another LBIST of the another integrated circuit, the at least another I/O circuit being electrically coupled to the I/O circuit across the at least one external signal path, and wherein the concurrent testing of the I/O circuit and the concurrent testing of the at least another I/O circuit facilitate the verifying of the at least one external signal path employing the signature test result of the integrated circuit produced using the LBIST.