Microfluidic system with single drive signal for multiple nozzles
US10543504B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 28, 2017 |
| Grant date | Jan 28, 2020 |
| Priority date | — |
| Expiry date | Jun 28, 2037 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49119
- WIPO fieldTextile and paper machines
- WIPO sectorMechanical engineering
Abstract
A microfluidic die is disclosed that includes a plurality of heaters above a substrate, a plurality of chambers and nozzles above the heaters, a plurality of first contacts coupled to the heaters, and a plurality of second contacts coupled to the heaters. The plurality of second contacts are coupled to each other and coupled to ground. The die includes a plurality of contact pads, a first signal line coupled to the plurality of second contacts and to a first one of the plurality of contact pads, and a plurality of second signal lines, each second signal line being coupled to one of the plurality of first contacts, groups of the second signal lines being coupled together to drive a group of the plurality of heaters with a single signal, each group of the second signal lines being coupled to a remaining one of the plurality of contact pads.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.