Patents Assigned to Taiwan Semiconductor
  • Patent number: 6918397
    Abstract: A flush system comprising a network of conduits, valves and screens that can be interposed between the process container and solvent re-claim tank components of a dry film photoresist (DFR) remover system, for example, that is used in the processing and packaging of integrated circuit chips. By operation of the valves in the flush system, DFR particles can be removed from the DFR remover system in order to prevent or minimize particle clogging of a particle filter in the DFR remover system. The screens in the flush system can be periodically cleaned by reverse flow of solvent or by operation of a nitrogen and DI (deionized) water purge system.
    Type: Grant
    Filed: April 22, 2002
    Date of Patent: July 19, 2005
    Assignee: Taiwan Semiconductor
    Inventors: Ta-Min Lin, Szu-Yao Wang, Chia-Fu Lin, Kai-Ming Ching, Wen-Hsiang Tseng