Patent ID: 7306695
Filing Date: 2007-12-11
Classification: H01L,Y10S,Y10T

Abstract:
1. A chip pick-up method for picking up a chip held on a sheet using a pick-up head, comprising: a recognition step of recognizing the chip by capturing an image of the chip held on the sheet; a positioning step of positioning the chip to be picked up relatively to the pick-up head on the basis of the recognition result in the recognition step; a sheet separating step of separating the sheet from the chip by sucking the sheet from sucking grooves with boundary zones being kept in contact with a lower surface of the sheet, the boundary zones defining a suction plane; and a holding step of holding an upper surface of the chip separated from the sheet using the pick-up head, wherein prior to said recognition step, suction members are moved to be brought into contact with the lower surface of the sheet and the sheet is sucked so that the deformation of the chip held on the sheet is reformed, and wherein said sheet separating step is implemented in a state where said suction members have left the suction plane.