Micro elements transfer device and method
US10622234B2 · kind B2 · utility
2Cited by
6References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jul 25, 2019 |
| Grant date | Apr 14, 2020 |
| Priority date | — |
| Expiry date | Jul 25, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10H20/857
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A device configured to transfer a micro element includes: a pick-up head array configured to selectively pick up or release the micro element, and including a plurality of pick-up heads; and a test circuit having a plurality of sub-test circuits, each sub-test circuit corresponding to one pick-up head among the plurality of pick-up heads, and having at least two test electrodes for simultaneous testing of photoelectric parameters of the micro element when the transfer device transfers the micro element.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.