Method of producing liquid discharge head
US8438729B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 14, 2007 |
| Grant date | May 14, 2013 |
| Priority date | — |
| Expiry date | Oct 6, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49401
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A method can produce a liquid discharge head including a liquid discharge energy generating element, a liquid discharge port, a liquid flow path, an electric circuit for driving the liquid discharge energy generating element, a first electrode pad for exchanging electrical signals with the exterior and a second electrode pad for testing the electric circuit. The method includes preparing a substrate provided with a conductive layer for forming the first electrode pad and the second electrode pad, forming a protective layer directly on the second electrode pad, after forming the protective layer, forming a metal layer by an electro less plating method on the conductive layer, removing the protective layer after the metal layer is formed, and providing a layer comprised of a resin on the second electrode pad after the protective layer is removed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.