Patent ID: 9666457
Date: 2017-05-30
CPC Classifications: H01L

Claim:
1. An adsorbing apparatus combining a rotating function and a heating function, comprising: an adsorbing hotplate for adsorbing and heating a wafer, the adsorbing hotplate comprising a heating plate having a heating wire uniformly coiled in the heating plate and a heating cable extending out of the adsorbing hotplate, a temperature sensor with a temperature sensor cable extending out of the adsorbing hotplate, and a first vacuum channel extending through a center of the adsorbing hotplate; a pin driving device for driving up and down movement of pins for loading and unloading the wafer, the pins being arranged to pass through the adsorbing hotplate and uniformly distribute under the wafer; a rotating shaft for rotating the adsorbing hotplate, the rotating shaft comprising a second vacuum channel that communicates with the first vacuum channel of the adsorbing hotplate and a cable channel that receives lengths of the heating and temperature sensor cables that extend out of the adsorbing hotplate; and a conductive rotating ring connected with the rotating shaft, the conductive rotating ring comprising a gas path connecting the second vacuum channel of the rotating shaft with a vacuum line, and an electric circuit connecting the heating and temperature sensor cables with a power source.