Patent · US Active

Process for the production of solar cells having a local back surface field (LBSF)

US9355867B2 · kind B2 · utility

3Cited by

3References

12Claims

0Family size

Assignee

Merck Patent GmbH · DE

Inventors

Werner Stockum · Reinheim, DE
Oliver Doll · Dietzenbach, DE
Ingo Koehler · Darmstadt, DE
Christian Matuschek · Frankfurt am Main, DE

Key dates

Filing date	May 24, 2013
Grant date	May 31, 2016
Priority date	—
Expiry date	May 24, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P70/50
WIPO fieldSemiconductors
WIPO sectorElectrical engineering

Abstract

The present invention relates to a method for producing solar cells with local back surface field (LBSF) using an alkaline etching paste which allows the back surface to be polished and the back surface edges to be insulated in a single process step.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.