Head and liquid ejecting apparatus
US9573371B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 3, 2016 |
| Grant date | Feb 21, 2017 |
| Priority date | — |
| Expiry date | Feb 3, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB41J2002/14491
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Provided is a head including a channel formation substrate that is provided with a pressure generating chamber which communicates with a nozzle for ejecting a liquid, a piezo element, a driving circuit board that is bonded to the one surface side of the channel formation substrate, and a driving circuit for driving the piezo element. The piezo element and the driving circuit are electrically connected to each other via a bump which is provided on any one of the channel formation substrate and the driving circuit board. A holding portion that holds the piezo element is provided between the driving circuit board and the channel formation substrate. The holding portion is opened to an atmosphere through an atmosphere open passage which is provided to penetrate the driving circuit board in a direction in which the driving circuit board and the channel formation substrate are stacked.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.