Patent ID: 7638003
Filing Date: 2009-12-29
Classification: C23C

Abstract:
1. A semiconductor processing apparatus comprising: a reaction chamber; a susceptor disposed in the reaction chamber for placing a substrate thereon, said susceptor having through-holes in an axial direction of the susceptor; lift pins slidably disposed in the respective through-holes for lifting the substrate over the susceptor; said lift pins having lower ends which are attached to a bottom portion in the reaction chamber; and multiple pairs of magnetic elements, each pair being magnetically attracted to each other wherein one of the pair is provided at the lower end of each lift pin, and the other of the pair is provided at a base at the bottom portion in the reaction chamber, wherein the lift pins are magnetically attached to and in contact with the other of the pair and laterally movable relative to the bottom portion of the reaction chamber for reducing contact resistance between the lift pins and the respective through-holes.