Patent ID: 9093267
Filing Date: 2015-07-28
Classification: C23C,C25D,H01L,Y02E

Abstract:
1. A method for coating a solar cell substrate with a film, the method comprising: preparing a chemical solution for deposition of a film with varying thickness on a solar cell substrate; placing the solar cell substrate into the chemical solution next to a curtain that is separate and distinct from the chemical solution for a predetermined period of time to deposit the film on the solar cell substrate, wherein the curtain is shaped to vary a separation distance between the curtain and the solar cell substrate, the curtain is shaped to provide at least a first region separating the curtain from the solar cell substrate by a first distance and a second region separating the curtain from the solar cell substrate by a second distance different from the first distance, and a thickness of the film deposited on the solar cell substrate varies with a separation distance between the solar cell substrate and the curtain; and removing the solar cell substrate from the chemical solution, wherein the thickness of the film increases with the separation distance.