Manufacturing method of ink jet recording head and ink jet...

Semiconductor device manufacturing: process – Manufacture of electrical device controlled printhead

Reexamination Certificate

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C029S025350, C029S611000, C029S846000, C216S027000, C216S034000, C216S056000, C347S044000, C347S045000, C347S070000

Reexamination Certificate

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07462500

ABSTRACT:
A manufacturing method of an ink jet recording head including a discharge port for discharging ink includes the step of forming the discharge port by performing dry etching of a discharge port forming member for forming the discharge port, wherein the discharge port forming member is formed of a Si including resin, and the step of dry etching is performed by using an etching gas including oxygen and chlorine as necessary components.

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patent: 2004/0238485 (2004-12-01), Hayakawa et al.
patent: 2005/0140737 (2005-06-01), Ushijima et al.
patent: 5-330066 (1993-12-01), None

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