VIEW PORT DEVICE FOR PLASMA PROCESS AND PROCESS OBSERVATION DEVICE OF PLASMA APPARATUS

A view port device for a plasma process and a process observation device of a plasma apparatus are provided. The view port device for a plasma process comprises a first substrate portion, a second substrate portion, and a connecting portion. The first substrate portion has a first through hole. The...

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Bibliographische Detailangaben
Hauptverfasser: LIANG MUH-WANG, WEI TAIN, LIN GUAN-YU, DU CHENUNG
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:A view port device for a plasma process and a process observation device of a plasma apparatus are provided. The view port device for a plasma process comprises a first substrate portion, a second substrate portion, and a connecting portion. The first substrate portion has a first through hole. The second substrate portion has a second through hole and a second diffusion space. A cross-sectional area of the second diffusion space is larger than that of the second through hole. The connecting portion is disposed between the first substrate portion and the second substrate portion.