Patent ID: 9558844
Date: 2017-01-31
CPC Classifications: G11C,H01L

Claim:
1. An apparatus, comprising: a first through-substrate via (TSV) coupled to an addressable device of the apparatus; a second TSV coupled to the addressable device of the apparatus, at least one of the first TSV and the second TSV configured to provide to, or to receive from, one or more unique device identifier values to subsequent, or from preceding, addressable devices, respectively, to be coupled to the apparatus; a switch including a first node a second node, the second node being coupled either to a unique device identifier circuit or to the second TSV, the switch being controllable by the unique device identifier circuit and configured to switch between the unique device identifier circuit and the second TSV in response to a control signal received from the unique device identifier circuit; and an equivalent OR gate having a first node, a second node, and a third node, the first node being coupled to the first TSV, the second node being coupled to the first node of the switch, and the third node being coupled to receive an externally-generated serial data input signal.