Abstract:With the introduction of 450 mm wafers, which are considerably larger than the currently largest wafers of 300mm, handling with side grippers is no longer possible and backside grippers are required. Backside gripping increases the possible buildup of particles on the backside of the wafers with possible cross-contamination to the front-side. Therefore, regular backside cleaning is required. Three vacuum compatible cleaning methods were selected. Tacky rollers and highvoltage cleaning were selected for particl… Show more
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