Multilayer microfluidic probe head with immersion channels and fabrication thereof
US9745949B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 18, 2011 |
| Grant date | Aug 29, 2017 |
| Priority date | — |
| Expiry date | Mar 4, 2034 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T137/8593
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The invention is directed to a microfluidic probe head (100) with a base layer (120) comprising: at least two processing liquid microchannel (123, 124) in fluid communication with a processing liquid aperture (121, 122) on a face of the base layer; and an immersion liquid microchannel (223, 224) in fluid communication with a immersion liquid aperture (221, 222) on a face of the base layer, wherein the microfluidic probe head is configured to allow, in operation, processing liquid provided through the processing liquid aperture to merge into immersion liquid provided through the immersion liquid aperture. An additional layer can be provided to close the microchannels. Such a multilayered head is compact and easier to fabricate than heads made with unitary construction. The head can further be interfaced with tubing using e.g. a standard fitting for tubing port.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.