Patent ID: 9536759
Date: 2017-01-03
CPC Classifications: H01L

Claim:
1. A baking apparatus for baking a wafer, comprising: a chamber defining an interior and having an opening for providing access to the interior; a support base disposed within the interior, the support base having a support surface and a guiding opening extending along the support surface; a wafer chuck configured to hold the wafer, the wafer chuck being disposed within the interior and configured to move between a retracted position adjacent the support base and an extended position displaced from the support base; a heating device, disposed within the interior and over the wafer chuck, configured to heat the wafer; and a carrying arm disposed within the interior and configured to transport the wafer over the wafer chuck, the carrying arm having a slot sized and shaped to receive the wafer chuck, the carrying arm extending through the guiding opening of the support surface and being movable from a baking transfer position adjacent the opening of the chamber to a chuck transfer position aligned over the wafer chuck, wherein, for baking the wafer, the carry arm is configured to move along the guiding opening and transport the wafer from the baking transfer position to the chuck transfer position, at which the wafer chuck moves toward the extended position to engage through the slot of the guiding arm to contact a bottom surface of the wafer such that the wafer is held by the wafer chuck, beneath the heating device, and is no longer carried by the carry arm.