Methods for drying wafers

A method for drying a wafer includes a cleaning step, a liquid replacing step, and a drying step. In the cleaning step, a workpiece located in a process chamber is cleaned with a cleaning solution. In the liquid replacing step, a drying agent in gas phase is compressed to convert into liquid phase,...

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Bibliographische Detailangaben
Hauptverfasser: LIN, SHIH-KAI, CHOU, SHENG-YAO, KUO, HUNG-MING, SUN, PEI-JUN, WANG, YU-BO, CHANG, TINGANG, KUO, CHUAN-WEI
Format: Patent
Sprache:chi ; eng
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Beschreibung
Zusammenfassung:A method for drying a wafer includes a cleaning step, a liquid replacing step, and a drying step. In the cleaning step, a workpiece located in a process chamber is cleaned with a cleaning solution. In the liquid replacing step, a drying agent in gas phase is compressed to convert into liquid phase, and the drying agent in liquid phase is introduced to the process chamber to replace the cleaning solution. In the drying step, the cleaning solution is discharged out of the process chamber, and then the drying agent is converted from liquid phase back to gas phase and is discharged out of the process chamber.