Liquid discharge recording head and method for manufacturing same
US7475966B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 31, 2005 |
| Grant date | Jan 13, 2009 |
| Priority date | — |
| Expiry date | Nov 30, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2/1642
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A liquid discharge recording head in which a nozzle plate is formed from inorganic material can be manufactured at low cost and with good through-put. In the liquid discharge recording head, a nozzle plate formed from inorganic material is stacked on a front surface of a silicon substrate including heat generating resistor members for generating energy for discharging liquid and an electric circuit for driving the heat generating resistor members. The liquid can be supplied from a liquid supply port extending through the silicon substrate to flow paths provided between the silicon substrate and the nozzle plate. Recessed portions having predetermined depths are formed in regions of the surface of the silicon substrate, where the flow paths are formed, and discharge ports are formed above the recessed portions.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.