Patent ID: 9362424
Filing Date: 2016-06-07
CPC Classification: H01L,H05K,Y02E

Claim Text:
1. A method of producing a photovoltaic cell, comprising: disposing a silicon nitride layer on at least a portion of a silicon substrate; selectively printing a printable ink comprising an effective amount of a basic material dispersed in a fluid onto a portion of the silicon nitride layer; exposing the portion of the silicon nitride layer to the effective amount of basic material; heating the silicon nitride layer and the printed ink at a temperature of about 250° C. to about 300° C. to remove the portion of the silicon nitride layer with the basic material to expose some underlying portion of the silicon substrate without using a mask on the silicon nitride layer; and electrically coupling at least one electrical component to the exposed silicon substrate to produce the photovoltaic cell.