PICKER FOR USE IN A HANDLER AND METHOD FOR ENABLING THE PICKER TO PLACE PACKAGED CHIPS

摘要

Provided is a picker for use in a handler, including at least one picker base, a row of nozzles provided to each of the picker base, and a detecting unit, provided to one side of each of the nozzle, for detecting if a packaged chip exists in a carrying hole on a user tray. The picker is capable of detecting if the packaged chip exists in a first row of the carrying holes on the user tray. And the picker is capable of placing the packaged chips into the first row of the carrying holes on the user tray and at the same time detecting if the packaged chip exists in a second row of the carrying holes on the user tray, when existence of the packaged chip is not detected on the first row of the carrying holes on the user tray.