Semiconductor device manufacturing: process – Manufacture of electrical device controlled printhead
Reexamination Certificate
2004-12-09
2008-12-09
Tran, Binh X (Department: 1792)
Semiconductor device manufacturing: process
Manufacture of electrical device controlled printhead
C029S025350, C029S611000, C029S846000, C216S027000, C216S034000, C216S056000, C347S044000, C347S045000, C347S070000
Reexamination Certificate
active
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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Angadi Maki
Canon Kabushiki Kaisha
Fitzpatrick ,Cella, Harper & Scinto
Tran Binh X
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