Patent ID: 8539420

Claim:
An apparatus for interconnecting a first die and a second die of a multi-die device, comprising: a master circuit block that interfaces with the first die of the multi-die device; a slave circuit block that interfaces with the second die of the multi-die device; a first memory in the slave circuit block; a second memory in the master circuit block; and a plurality of μbumps between the first die and the second die; wherein the master circuit block and the slave circuit block are configured to identify one of the μbumps as a faulty μbump, and wherein the slave circuit block is configured to generate a first value and store the first value in the first memory in the slave circuit block, and the master circuit block is configured to generate a second value and store the second value in the second memory in the master circuit block, wherein the first and second values correspond to the identified faulty μbump.