Patent · US Expired

Process for coating a polycarbonate substrate with an aluminum-silicon alloy

US5403663A · kind A · utility

3Cited by

4References

2Claims

0Family size

Assignee

Leybold GmBH · DE

Inventors

Eggo Sichmann · Gelnhausen, DE
Thomas Krug · Worms, DE
Jurgen Meinel · Dreieich, DE
Dan Costescu · Mühlheim am Main, DE

Key dates

Filing date	Jul 13, 1994
Grant date	Apr 4, 1995
Priority date	—
Expiry date	Jul 13, 2014

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10T428/31507
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

A DC source 10 connected to an electrode 5 is disposed in a coating chamber which can be evacuated. The electrode is electrically connected to a target 3 which is sputtered and the sputtered particles are deposited on the substrate, while a process gas is introduced in the coating chamber 15, 15a. The target is made of an aluminum-silicon alloy which may contain 0.5 to 2.0 percent silicon and 99.5 to 98.0 percent aluminum in order to improve the adhesive strength and the service life of the layer 2. The substrate may be made of polycarbonate.

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