Patent ID: 8207005

Claim:
A method of forming a solar cell device, comprising: depositing a dopant material comprising a first dopant on a plurality of regions of a first surface of a substrate in a first deposition station disposed in an automation assembly, wherein the first deposition station comprises a screen printing mask and at least one actuator configured to position the screen printing mask; forming a dielectric layer over the dopant material and a portion of the first surface of the substrate in a second deposition station disposed in the automation assembly, wherein the dielectric layer comprises a second dopant that is an opposite doping type of the first dopant; heating the substrate to a desired temperature in a heating chamber disposed in the automation assembly to cause the first and the second dopants to diffuse into the first surface of the substrate; and depositing a conducting layer over at least a portion of the first surface of the substrate in a third deposition station disposed in the automation assembly, wherein the third deposition station comprises a screen printing mask and at least one actuator configured to position the screen printing mask.