Dispense connection system

10/01/1998

Dispense connection system

The NOWPak SmartProbe key-coded connector is designed to provide a clean and completely sealed means for dispensing chemical from the NOWPak container and to eliminate chemical misconnections to process equipment. Typical applications include DUV, i-line, and g-line photoresists, polyimides, HMDS, developers, coatings, removers, and related ancillary chemicals. The system is now available with a pressure assist option, which interfaces with pump-style delivery systems that require pressure assist initialization (i.e., to fill a reservoir). The SmartProbe/SmartCap system features two measures of protection. A mechanical interlock has a key-coded retainer that allows connection only with an identically key-coded SmartCap closure. When the SmartProbe is properly engaged to its mating SmartCap, the optional sensor in the SmartProbe reads a magnet embedded in the SmartCap and sends a signal to the process equipment. This signal can be used to control an electronic interlock to permit dispensing only if the correct connection is made. A "green means go" LED on the sensor illuminates upon proper connection. NOW Technologies Inc., Minneapolis, MN; ph 612/829-4443, e-mail [email protected], www.nowpak.com.