Patent ID: 7960189

Claim:
A method of manufacturing a system in package, comprising: providing a substrate; testing the substrate; after testing the substrate, mounting a test controller on the substrate; storing self test signals in an on-board memory inside the test controller; testing the test controller, wherein testing the test controller comprises testing the test controller using a built-in self test engine within the test controller and the self test signals that are stored in the on-board memory inside the test controller; if the test controller passes the test, mounting a first die on the substrate, the first die being conductively coupled to the test controller; testing the first die by providing the test controller with a plurality of test signals and communicating at least a subset of the test signals between the test controller and the first die; after testing the first die to establish that mounting the first die on the substrate has been successfully completed, mounting a second die on the substrate, the second die being conductively coupled to the test controllers; and testing the second die by providing the test controller with a first further plurality of test signals and communicating at least a subset of the first further plurality of test signals between the test controller and the second die.