Fluid feed slot for fluid ejection device
US10118392B2 · kind B2 · utility
0Cited by
16References
11Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Apr 6, 2018 |
| Grant date | Nov 6, 2018 |
| Priority date | — |
| Expiry date | Apr 6, 2038 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB23K2103/56
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A method of forming a substrate for a fluid ejection device includes forming an opening in the substrate from a second side toward a first side, and further forming the opening in the substrate to the first side, including increasing the opening to the first side and increasing the opening at the second side, and forming the opening with substantially parallel sidewalls intermediate the first side and the second side and converging sidewalls to the first side.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.