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US 8,771,554 B2Granted
Thick film silver paste containing Al2O3 and lead-tellurium—oxide and its use in the manufacture of semiconductor devices
AssigneeE. I. Du Pont de Nemours and Company
InventorRaj G. Rajendran
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Abstract
The present invention is directed to a thick film silver paste comprising (i) silver, (ii) Al2O3, and (iii) a Pb—Te—O all dispersed in an organic medium. The present invention is further directed to an electrode formed from the paste and a semiconductor device and, in particular, a solar cell comprising such an electrode. The electrodes provide good adhesion and good electrical performance.
Claims14
A thick film silver paste comprising:
- (a) silver;
- (b) Al2O3;
- (c) a Pb—Te—O;
- and
- (d) organic medium;
- wherein said silver, said Al2O3, and said Pb—Te—O are dispersed in said organic medium, wherein said Al2O3 is present in an amount of 5-50 vol % based on the total volume of said silver and said Al2O3.
3 more elements
A solar cell comprising an electrode formed from the thick film silver paste comprising:
- a) silver;
- b) Al2O3;
- c) Pb—Te—O;
- and
- d) organic medium;
- wherein said silver, said Al2O3, and said Pb—Te—O are dispersed in said organic medium and wherein said thick film paste has been fired to remove the organic medium and form said electrode, wherein said Al2O3 is present in an amount of 5-50 vol % based on the total volume of said silver and said Al2O3.
3 more elements
Dependencies are inferred from the claim text.