Chemistry: electrical and wave energy – Processes and products – Coating – forming or etching by sputtering
Reexamination Certificate
2004-06-25
2009-06-23
McDonald, Rodney G (Department: 1795)
Chemistry: electrical and wave energy
Processes and products
Coating, forming or etching by sputtering
C204S192270, C204S192230, C204S192280
Reexamination Certificate
active
07550067
ABSTRACT:
A coated article is provided that may be used as a vehicle windshield, insulating glass (IG) window unit, or the like. Ion beam treatment is performed on a layer(s) of the coating. For example, a silicon nitride layer of a low-E coating may be ion beam treated. It has been found that ion beam treatment, for example, of a silicon nitride underlayer is advantageous in that sodium migration from the glass substrate toward the IR reflecting layer(s) can be reduced during heat treatment.
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Ray et al., “Effect of Reactive-ion bombardment on the properties of silicon nitride and oxynitride films deposited by ion-beam sputtering”, J. Appl. Phys. 75(12), pp. 8145-8152, Jun. 15, 1994.
International Search Report mailed Oct. 12, 2005.
Guardian Industries Corp.
McDonald Rodney G
Nixon & Vanderhye P.C.
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