Hewlett-packard Company

Diana D Granger

Paul J Benning

David Pidwerbecki

Joe E Stout

Gerald T Kraus

The photoresist barrier layer of an inkjet printer printhead is processed to enable channels narrower than a predetermined width in the barrier layer to be created without blockage. Relatively large volumes of photoresist which form a wall of the channel are exposed to a partial exposure of electromagnetic radiation to yield a reduced concentration of photoresist barrier layer in the large volume.

Fine detail photoresist barrier

The photoresist barrier layer of an inkjet printer printhead is processed to enable channels narrower than a predetermined width in the barrier layer to be created without blockage. Relatively large volumes of photoresist which form a wall of the channel are exposed to a partial exposure of electomagnetic radiation to yield a reduced concentration of photoresist barrier layer in the large volume.

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Corvallis, OR, United States of America

Diana D Granger