Forming nozzles
US8641171B2 · kind B2 · utility
0Cited by
13References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 30, 2012 |
| Grant date | Feb 4, 2014 |
| Priority date | — |
| Expiry date | May 30, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB81B2201/052
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
Fluid ejection nozzles having a tapered section leading to a straight walled bore are described. Both the tapered section of the nozzle and the straight walled bore are formed from a single side of semiconductor layer so that the tapered section and the bore are aligned with one another, even when an array of nozzles are formed across a die and multiple dies are formed on a semiconductor substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.