NOZZLE PLATE COMPRISING BOROSILICATE GLASS
A nozzle plate defines at least one nozzle connected to the nozzle plate at a base, wherein the at least one nozzle has a height and a top having an inner width and an outer width, wherein a ratio of the height to the inner width is greater than 5, and wherein the nozzle plate comprises a borosilica...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | A nozzle plate defines at least one nozzle connected to the nozzle plate at a base, wherein the at least one nozzle has a height and a top having an inner width and an outer width, wherein a ratio of the height to the inner width is greater than 5, and wherein the nozzle plate comprises a borosilicate glass. The nozzle plate is formed via a method including providing a silicon wafer having a surface; providing a borosilicate glass wafer having a surface; etching the surface of the silicon wafer to form a plurality of trenches in the surface; anodically bonding the etched surface of the silicon wafer to the surface of the borosilicate glass wafer to form a two layer composite; heating the two layer composite at a temperature of at least about 750° C.; and releasing the silicon wafer from the borosilicate glass to form the nozzle plate. |
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