Patent ID: 6988932

Claim:
A substrate carrier that is capable of receiving a vacuum, and holding a substrate from a backside during processing, such that when a solution is disposed on a front side of the substrate, the solution is prevented from reaching an inner region of a base and a backside inner region of the substrate, the substrate carrier comprising: the base for placing the substrate thereon; a vacuum inlet disposed within the inner region of the base, the vacuum inlet connectable to the vacuum to hold the substrate; a sealing member disposed on the base and defining the inner region of the base, the sealing member adapted to contact the backside of the substrate to thereby establish the backside inner region of the substrate, and assist in preventing the solution from reaching the backside inner region of the substrate and the inner region of the base during the processing of the substrate; a sealing mechanism disposed outside of the sealing member, the sealing mechanism includes another sealing member, the another sealing member disposed outside of and around the sealing member and adapted to contact the backside of the substrate and thereby assist in preventing the solution from reaching the backside inner region of the substrate during the processing of the substrate when the another sealing member is in a sealed position; and a moving mechanism configured to move the another sealing member between the sealed position and an unsealed position.