Patent ID: 6602736
Filing Date: 2003-08-05
Classification: H01L,Y10T

Abstract:
A method for separating semiconductor chips, comprising:positioning a sheet, to which a wafer diced into many semiconductor chips is stuck and which has its edge surrounded and supported by a frame, to a position where a sucker plate is located; sucking said wafer to said sucker plate; cutting said sheet to cut off, from said frame, a part of said sheet including a site where said wafer is stuck to said sheet; separating said sheet from said wafer while said wafer is being sucked to said sucker plate, wherein said sheet is separated by pulling the edge of said sheet in a predetermined direction while said sheet is being moved under a guidance of a wedge-shaped guide, said wedge-shaped guide being moved in a direction making an angle of about 45Â° to the dicing line for chips on said wafer and concurrently therewith said sheet being pulled in the 45Â° direction, said sheet being caused to profile an angle of 15Â° of said wedge-shaped guide so as to be pulled in a direction making an angle of about 15Â° to the top surface of said sucker plate; and picking up the individual semiconductor chips, transferring them from said sucker plate to a different site and storing them in a tray.