Patent ID: 6601228
Filing Date: 2003-07-29
Classification: G01R

Abstract:
A method for modifying the logic design of an application specific integrated circuit having integrated circuit connection circuitry connecting a plurality of standard cells and having at least one metal layer comprising:locating at least one programmable circuit on a die before a metal one stage in two or more examples of the application specific integrated circuit, at least one of said application specific integrated circuits is then provided with the at least one metal layer and at least one of said application specific integrated circuits is left without the at least one metal layer; identifying any needed design modifications in the logic design of the application specific integrated circuit provided with the at least one metal layer; in the application specific integrated circuit without the at least one metal layer, connecting the at least one programmable circuit to the integrated circuit connection circuitry by providing a changed mask for and then depositing the at least one metal layer; and configuring the at least one programmable circuit such that the needed design modification is implemented.