Patent · US Active

Compositions and methods for texturing polycrystalline silicon wafers

US8986559B2 · kind B2 · utility

0Cited by

0References

24Claims

0Family size

Assignee

AVANTOR PERFORMANCE MATERIALS, LLC · US

Inventors

Nicolas Hildenbrand · Deventer, NL
Joannes Theodorus Valentinus Hoogboom · Ludwigshafen, DE
Michiel Scheffer · Arnhem, NL
Raymond Albertus Johannes TEN BROEKE · Raalte, NL

Key dates

Filing date	Feb 27, 2013
Grant date	Mar 24, 2015
Priority date	—
Expiry date	Feb 27, 2033

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02E10/547
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Compositions and methods for chemical texturing a surface of a polycrystalline silicon wafer to be used in the manufacture of solar cells provide increased efficiency in the manufacture and operation of solar cells. The compositions and methods disclosed herein include first and second components, wherein the first component is a UKON etch composition, including a hydrofluoric acid/nitric acid mixture and water, while the second component includes a silicon wafer texturing enhancer (SWTE).

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