Patent ID: 8982581
Filing Date: 2015-03-17
Classification: H01L,Y10T

Abstract:
1. A die for a multi-chip module, comprising: a contact having an externally exposed surface after the formation of the die and prior to assembly of the multi-chip module, wherein the contact is for a die-to-die interconnect of the multi-chip module, and the contact is an internal node of the multi-chip module after assembly of the multi-chip module; a driver circuit, coupled to the contact, having a first input impedance; a discharge circuit, coupled to the contact, to provide electrostatic discharge protection of the driver circuit; wherein the discharge circuit has a first impedance associated with a first portion of the discharge circuit, and the first impedance is a fraction of the first input impedance; wherein the first portion of the discharge circuit comprises a first diode that is coupled to the contact in a forward biased direction; wherein a second portion of the discharge circuit comprises a second diode that is coupled to the contact in a reverse biased direction; wherein a third portion of the discharge circuit comprises a third diode that is coupled to the contact in the forward biased direction, and a fourth diode that is coupled to the third diode in series and in the forward biased direction; and wherein a first ratio of the first input impedance to the first impedance is at least 4 to 1 for the electrostatic discharge protection.