Patent ID: 9147779
Filing Date: 2015-09-29
Classification: H01L,Y02E

Abstract:
1. A method for manufacturing a solar cell by-pass diode, the method comprising: forming a first doping layer on a first side of a silicon wafer; depositing a first dielectric layer on the first doping layer and on a second side of the silicon wafer; etching an opening in the first dielectric layer on the second side of the silicon wafer; performing one of diffusion and ion implant over the opening to create a junction; removing the first dielectric layer from the first doping layer and from the second side of the silicon wafer; depositing a first metal contact on the junction, and depositing a second metal contact on the first doping layer; depositing a second dielectric layer on the first metal contact, on an exposed portion of the second side of the silicon wafer, and on the second metal contact; and etching an opening in the second dielectric layer on the first metal contact; and removing the second dielectric layer on the second metal contact.