FLOATING SUBSTRATE MONITORING AND CONTROL DEVICE, AND METHOD FOR THE SAME

Disclosed is a process tunnel (102) through which substrates (140) may be transported in a floating condition between two gas bearings (124, 134). To monitor the transport of the substrates through the process tunnel, the upper and lower walls (120, 130) of the tunnel are fitted with at least one su...

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Bibliographische Detailangaben
Hauptverfasser: VERMONT, Pascal Gustaaf, VAN VELZEN, Wilhelmus Gerardus, RAMIREZ TROXLER, Gonzalo Felipe, GRANNEMAN, Ernst Hendrik August, KUZNETSOV, Vladimir Ivanovich
Format: Patent
Sprache:eng ; fre ; ger
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Zusammenfassung:Disclosed is a process tunnel (102) through which substrates (140) may be transported in a floating condition between two gas bearings (124, 134). To monitor the transport of the substrates through the process tunnel, the upper and lower walls (120, 130) of the tunnel are fitted with at least one substrate detection sensor (S1, . . . , S6) at a respective substrate detection sensor location, said substrate detection sensor being configured to generate a reference signal reflecting a presence of a substrate between said first and second walls near and/or at said substrate detection sensor location. Also provided is a monitoring and control unit (160) that is operably connected to the at least one substrate detection sensor (S1, . . . , S6), and that is configured to record said reference signal as a function of time and to process said reference signal.