Patent ID: 6274402
Filing Date: 2001-08-14
Classification: H01L,Y02E,Y02P

Abstract:
A method of fabricating a silicon solar cell having p-doped regions and n-doped regions on a same side, comprising the steps of:(a) forming a passivating layer on a surface of the cell having opened windows at the p-doped regions and the n-doped regions;(b) depositing and patterning a first metal layer on the passivating layer in such a way that the first metal layer comes into contact with the p-doped regions and the n-doped regions;(c) depositing a first insulator layer of inorganic material on the first metal layer;(d) etching and patterning the first insulator layer in such a way that the insulator layer has opened windows at, at least one of the p-doped regions and the n-doped regions;(e) depositing a second insulator layer of organic material on the first insulator layer;(f) etching and patterning the second insulator layer in such a way that the insulator layer has opened windows at the one of the p-doped regions and the n-doped regions;(g) curing the second insulator layer by heating at a predetermined temperature for a predetermined time; and(h) depositing a second metal layer on the second insulator layer of organic material in such a way that the second metal layer comes into contact with the one of the p-doped regions and the n-doped regions.