Patent ID: 9633928
Date: 2017-04-25
CPC Classifications: H01L

Claim:
1. A method of operating through-silicon via access devices (TSVADs) to establish an electrical interconnection between at least two semiconductor chips located in a planar stack of semiconductor chips, the method comprising: initializing a set of control parameters used by a control circuit; loading the initialized set of control parameters into a state machine; generating, in response to the initialized set of control parameters, a set of control signals; controlling, using the set of control signals, logical devices to establish a first electrical interconnection that includes a first through-silicon via (TSV) and a first conductive pad, between at least two TSVADs in the at least two semiconductor chips; changing, in response to a change of the control parameters, a state of the state machine; generating, in response to the changed state of the state machine, a modified set of control signals; and modifying, using the modified set of control signals, the electrical interconnection between the at least two TSVADs in the at least two semiconductor chips, wherein the state machine is configured to generate the set of control signals based on configuration data accessible by the state machine and held in a serial scan latch configured to be written to and read from by a scan engine coupled to the state machine.