Patent ID: 7673637

Claim:
A photomask cleaner comprising: a chamber operably set between an opened status and an enclosed airtight status; a worktable provided inside said chamber, said worktable carrying a plurality of workstations; a photomask lifter mounted inside said chamber and operable to move a photomask vertically between a standby position and a clamping position; a clamp assembly mounted in said chamber and controllably to pick up said photomask from said clamping position; a displacement mechanism mounted in said chamber and controllable to move said clamp assembly among said workstations and said clamping position subject to a predetermined track; at least one cleaning unit installed in at least one of said workstations for cleaning said photomask carried by said clamp assembly and it is not necessary to remove a pellicle from said photomask during the cleaning operation, said at least one cleaning unit each comprising a plurality of spray nozzles controllable to spray a cleaning fluid to clean said photomask carried by said clamp assembly, a drain hole for drainage of the cleaning fluid, and a wiper for wiping clean said photomask carried by said clamp assembly; at least one air dryer installed in at least one of said workstations for drying said photomask carried by said clamp assembly with air; and a air circulation system installed in said chamber and controllable to supply a clean gas in said chamber and to carry foul air out of said chamber.