Patent ID: 6448156
Filing Date: 2002-09-10
Classification: B28D,H01L

Abstract:
A method for dicing a substrate, said substrate having a first substrate side and a second substrate side, said first substrate side being smoother than said second substrate side, comprising:providing a nest having a first nest side and a second nest side, said nest having a grid which defines at least one nest opening, said nest opening having an opening area that is smaller than an area of a die diced from said substrate; disposing said substrate on said nest with said first substrate side of said substrate facing said first nest side; providing a vacuum retainer plate having thereon at least one vacuum pedestal, said vacuum pedestal being configured to be disposed through said nest opening from said second nest side and to protrude above said first nest side of said nest when said vacuum pedestal is disposed through said nest opening; mating said nest with said vacuum retainer plate, thereby causing an upper surface of said vacuum pedestal to contact said first substrate side as said vacuum pedestal protrudes above said first nest side of said nest; and providing a vacuum within said vacuum pedestal to hold said first substrate side of said substrate against said upper surface of said vacuum pedestal.