Patent · US Expired

Quartz growth on X-seeds

US4576808A · kind A · utility

2Cited by

4References

2Claims

0Family size

Assignee

United States of America as represented by the Secretary of the Air Force · US

Inventors

Alton F. Armington · Lexington, US
John J. Larkin · Dubuque, US

Key dates

Filing date	Dec 28, 1983
Grant date	Mar 18, 1986
Priority date	—
Expiry date	Dec 28, 2003

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S117/902
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

This invention concerns itself with a method for producing single crystal, seed material for use in growing synthetic quartz crystals. This seed material comprises a Z-faced seed crystal cut or sliced from the X-plus growing region of a synthetic quartz, single crystal boule.

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