Pick and place for automatic test handler
US5290134A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Dec 3, 1991 |
| Grant date | Mar 1, 1994 |
| Priority date | — |
| Expiry date | Dec 3, 2011 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01L2221/68313
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A pick and plate apparatus for use in an automatic test handler picks up electronic devices from one type of tray, transfer the electronic devices in a horizontal plane to another type of tray, and places the electronic devices in a predetermined position on the other tray for testing and sorting. The pick and place apparatus includes a plurality of suction inlets for picking up the electronic devices from the tray with suction power caused by a vacuum, a guide frame for slidably mounting the plurality of suction inlets in a horizontal direction, a mechanism for providing up-and-down movement to the suction inlets for picking up the electronic devices from the one tray and placing the device in the other tray, and a mechanism for adjusting the spacing of the suction inlets to compensate for the differences in spacing between one tray and another tray.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.