Patent ID: 9097611
Filing Date: 2015-08-04
Classification: F17C,G01F,G01M,G01N,G06Q,H01L,H05K,Y02P,Y10T

Abstract:
1. A monitoring system for dynamically monitoring the volume of fluid in an adsorbent-based gas supply vessel in a gas box of an ion implanter during operation including dispensing of gas from the gas supply vessel, said monitoring system including (i) a monitoring assembly in the gas box, adapted to monitor at least one characteristic of the gas supply vessel selected from the group consisting of: vessel wall strain; vessel temperature; vessel displacement; vessel flexial character; and vessel weight or at least one characteristic of the gas dispensed from the gas supply vessel selected from group consisting of: gas pressure; gas temperature; cumulative flow volume; and gas flow rate, and transmit an output correlative to the at least one monitored characteristic, and (ii) an output assembly external to the ion implanter, with said monitoring assembly being arranged in signal transmission relationship to the output assembly by a signal transmission arrangement including a signal transmission optical cable extending exteriorly of the ion implanter to the output assembly, wherein the output assembly comprises a processor and a display, and is programmably arranged to provide an output on said display depicting a real-time graphical representation of volume of gas remaining in the gas supply vessel, with the processor being configured to determine, based on isotherm equations, the volume of gas remaining in the gas supply vessel from the output transmitted by the monitoring assembly.