Device substrate, liquid ejection head, and method for manufacturing device substrate and liquid ejection head

Patent metadata

Field	Value
Publication number	US-9108406-B2
Application number	US-201414276776-A
Country	US
Kind code	B2
Filing date	May 13, 2014
Priority date	May 15, 2013
Publication date	Aug 18, 2015
Grant date	Aug 18, 2015

Abstract

A device substrate includes a substrate body having an energy generating device provided thereon, where the energy generating device generates energy for ejecting liquid, an ejection port forming member disposed on the substrate body, where the ejection port forming member has a pressure chamber that surrounds the energy generating device and an ejection port that communicates with the pressure chamber, and a supply port configured to supply the liquid to the pressure chamber. The ejection port forming member has a first surface that is in contact with the substrate body and a second surface other than the first surface, and the supply port is formed in the second surface.

First claim

What is claimed is:

1. A device substrate comprising:
a substrate body having an energy generating device provided thereon, the energy generating device generating energy for ejecting liquid;
an ejection port forming member disposed on the substrate body, the ejection port forming member having a pressure chamber that surrounds the energy generating device and at least one ejection port that communicates with the pressure chamber; and
a supply port configured to supply the liq…

Assignees

• Canon Kk

Inventors

• Hasegawa Kouji
• Ibe Satoshi
• Yamamuro Jun
• Oya Shuhei
• Sujaku Shiro
• Hayasaka Junya

Classifications

• B41J2/14072

  Operations & Transport · mapped topic

• B41J2/1603

  Operations & Transport · mapped topic

• B41J2/1637 Primary

  Operations & Transport · mapped topic

• B41J2/1623

  Operations & Transport · mapped topic

• B41J2/1645

  Operations & Transport · mapped topic