Patent ID: 7218119

Claim:
A method for testing an electronic device comprising a plurality of transistors, the method comprising: electrically isolating a portion of the electronic device from a remainder of the electronic device, a portion of the plurality of transistors being within the portion of the electronic device and a remainder of the plurality of transistors being within a remainder of the electronic device; providing power to the electronic device such that a reduced amount of control current only flows through the portion of the electronic device; determining the reduced amount of control current, said determination of the reduced amount of control current comprising providing power to the portion of the electronic device such that current flows through the portion of the plurality of transistors and determining a test amount of control current flowing through at least one selected transistor of the portion of the plurality of transistors, the portion of the plurality of transistors being less than 50 percent of the plurality of transistors and the at least one selected transistor being less than 10 percent of the portion of the plurality of transistors; and calculating a combined amount of control current flowing through both the portion and the remainder of the electronic device when power is provided to both the portion and the reminder of the electronic device based on the reduced amount of control current, wherein the reduced amount is less than 50 percent of the combined amount of control current.