Patent ID: 6298684
Filing Date: 2001-10-09
Classification: B23Q,B25J,H01L,Y10S

Abstract:
A substrate transfer robot to be connected to an external coolant circulatory unit, comprising:first and second arms connected to each other to transfer a substrate and accommodated in a transfer chamber,a cooling block fixed to the first arm and having a cooling passage for circulating coolant therein,a heat absorbing flange integrally formed with the cooling block and contacting a part of the second arm connected to the first arm at one end thereof,a driving shaft connected to the first arm for driving the same, said driving shaft having a feed passage and a return passage therein extending along an axial direction thereof and communicating with the cooling block for supplying and collecting the coolant to and from the cooling block, anda rotary joint attached to a lower end of the driving shaft to communicate with the feed and return passages, said rotary joint being adapted to be connected to the external coolant circulatory unit for providing the coolant to the cooling block and receiving the coolant from the cooling block when the driving shaft is being rotated.