SEMICONDUCTOR DEVICE CAPABLE OF EXTERNALLY AND READILY IDENTIFYING SET BONDING OPTIONAL FUNCTION AND METHOD OF IDENTIFYING INTERNAL FUNCTION OF SEMICONDUCTOR DEVICE

摘要

An object of the present invention is to detect a bonding option function in which an internal function is set according to the potential of a bonding pad without breaking from the outside.;According to the present invention, a check circuit 30 is provided for selectively electrically connecting the pads to which the internal circuits are connected to the reference commission node in accordance with the potential of the specific pad 22 upon activation. This check circuit 30 is activated when the burn-in mode detection signal BI is activated. By detecting the leakage current of the pin terminal 28 to which the pad to which this circuit is connected is electrically connected, the potential of the specific pad, that is, the set internal function can be confirmed externally.