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Title: Direct current sputtering of boron from boron/boron mixtures

Patent ·
OSTI ID:6620836

A method for coating a substrate with boron by sputtering includes lowering the electrical resistance of a boron-containing rod to allow electrical conduction in the rod; placing the boron-containing rod inside a vacuum chamber containing substrate material to be coated; applying an electrical potential between the boron target material and the vacuum chamber; countering a current avalanche that commences when the conduction heating rate exceeds the cooling rate, and until a steady equilibrium heating current is reached; and, coating the substrate material with boron by sputtering from the boron-containing rod. 2 figures.

DOE Contract Number:
AC02-76CH03073
Assignee:
Dept. of Energy, Washington, DC (United States)
Patent Number(s):
US 5372686; A
Application Number:
PPN: US 8-067967
OSTI ID:
6620836
Resource Relation:
Patent File Date: 27 May 1993
Country of Publication:
United States
Language:
English