Method of making an ink jet printhead filter by laser ablation

Adhesive bonding and miscellaneous chemical manufacture – Methods – Surface bonding and/or assembly therefor

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156256, 1562728, 347 93, 216 27, 216 56, 216 65, 216 94, 21050021, 83 39, B32B 3100, B41J 200, G01D 1500

Patent

active

061396745

ABSTRACT:
A method for fabricating a filter element to prevent contaminants from entering an ink supply inlet of an ink jet printhead. The filter is formed by laser ablation process in which output laser radiation is directed through a mask system or light transmitting system to create a filter hole pattern in a thin film. Slightly tapered holes are formed in the film, and the formed filter element is laminated to the ink supply inlet. The tapered holes provide improved flow/impedance and add increased structural strength.

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