Patent ID: 8450188
Filing Date: 2013-05-28
Classification: H01L

Abstract:
1. A method of dividing a semiconductor wafer having a metal layer attached to a semiconductor material layer and intersecting scribe streets into separate individual devices, said method comprising the steps of: mounting the wafer on a first support with the metal layer adhesively attached to said first support whereby said first support supports said wafer; while said metal layer is adhesively attached to said first support, removing substantially all the semiconductor material in the scribe streets to form individual semiconductor material dies, each incorporating a device, without removing the metal layer from the scribe streets; adhesively attaching the semiconductor material dies of said semiconductor material layer to a second support; while employing said second support to support said wafer, releasing said first support from adhesive attachment to said metal layer and removing said first support from said metal layer to expose the metal layer; and while continuing to employ said second support to support said wafer, cutting said metal layer along said scribe streets.