Transfer system for microelements
US11618673B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 17, 2021 |
| Grant date | Apr 4, 2023 |
| Priority date | — |
| Expiry date | Oct 5, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2221/68381
- WIPO fieldSemiconductors
- WIPO sectorElectrical engineering
Abstract
A transfer system for transferring multiple microelements to a receiving substrate includes a main pick-up device, a testing device, and first and second carrier plates. The testing device includes a testing platform, a testing circuit, and multiple testing electrodes electrically connected to the testing circuit. The main pick-up device is operable to releasably pick up the microelements from the first carrier plate and position the microelements on the testing electrodes. The testing device is operable to test the microelements to distinguish unqualified ones of the microelements from qualified ones. The main pick-up device is operable to release the qualified ones of the microelements to the receiving substrate.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.