Patent ID: 7520309
Filing Date: 2009-04-21
Classification: H01L

Abstract:
1. An apparatus for adhering a protecting tape to a protection surface of a wafer, comprising: a protecting tape storing device for storing the protecting tape of which one surface is processed to be an adhering surface and which is cut into predetermined size and shape, thereby releasing tensile force in the protecting tape; a vacuum chamber; a wafer holding device disposed in the vacuum chamber for holding the wafer while exposing the protection surface; a protecting tape holding device disposed in the vacuum chamber and facing the wafer holding device for holding the protecting tape while exposing the adhering surface thereof; and an abutting device for bringing the protecting tape holding device and/or the wafer holding device close to each other, thereby abutting the adhering surface of the protecting tape to the protection surface of the wafer, wherein the vacuum chamber is a cylinder of which both ends are opened, the protecting tape holding device is inserted into and extracted from the vacuum chamber through one of the opened ends, and wafer holding device is inserted into and extracted from the vacuum chamber through another opened end, wherein a seal ring sliding along an inner surface of the vacuum chamber is installed to a peripheral surface of the protecting tape holding device, and a seal ring sliding along the inner surface of the vacuum chamber is installed to a peripheral surface of the wafer holding device, and the protecting tape holding device functions as a cap for closing the one opened end, and the wafer holding device functions as a cap for the another opened end.