Patent ID: 7232694

Claim:
A method of reducing shadow mask-to-substrate misalignment during a high-temperature deposition process, the method comprising the steps of: employing a shadow mask to provide at least one pattern of a high-resolution display on a bottom surface of a substrate; providing a temperature sensing layer over a top surface of the substrate; and providing a thermoelectric cooling layer over the temperature sensing layer; regulating the temperature across at least one unevenly heated region of the substrate, wherein the step of regulating the temperature comprises: sensing a temperature gradient of the unevenly heated region of the substrate by measuring the temperature across at least two different points of the unevenly heated region with a plurality of temperature measurement elements of the temperature sensing layer; transmitting the temperature of the unevenly heated region to a controller computer; and transferring heat energy from the substrate by controlling a plurality of thermoelectric cooling modules of the thermoelectric cooling layer by the controller computer.