Liquid discharge head and method for manufacturing the same

Details Liquid discharge head and method for manufacturing the same Liquid discharge head and method for manufacturing the same

2011-07-05

2011-07-05

Rahll, Jerry T (Department: 2874)

Incremental printing of symbolic information

Ink jet

Ejector mechanism

Reexamination Certificate

active

07971964

ABSTRACT:
A method for manufacturing a liquid discharge head including an energy generating element, which generates energy utilized for discharging a liquid, and a discharge portion provided at a position facing the energy generating element and having a discharge port for discharging the liquid is provided. This method includes the steps of forming a negative photosensitive resin layer used for a member that forms the discharge port on the substrate, and exposing the layer to an i-line to form the discharge portion that is tapered in a direction from the substrate to the discharge port, wherein the layer has an absorbance per 1 μm thickness of about 0.02 to about 0.07 for light used for the exposure.

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patent: 2007/0011875 (2007-01-01), Kubota et al.
patent: 2007/0046730 (2007-03-01), Min et al.
patent: 2001-10070 (2001-01-01), None

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