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Cleaning Process and Holder for Glass Nozzles

IP.com Disclosure Number: IPCOM000052441D
Original Publication Date: 1981-Jun-01
Included in the Prior Art Database: 2005-Feb-11
Document File: 2 page(s) / 55K

Publishing Venue

IBM

Related People

Bogardus, EH: AUTHOR [+3]

Abstract

Single glass nozzles which are approximately 50 mils in diameter and 1.4 mils in thickness require very clean surfaces for electrostatic bonding The size of these nozzles presents a problem in handling as well as cleaning since each nozzle must be kept separate. A procedure is described for containing each nozzle individually and for cleaning it to produce a contamination-free surface, in order to give successful bonds to the nozzle-mounting holders.

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Cleaning Process and Holder for Glass Nozzles

Single glass nozzles which are approximately 50 mils in diameter and 1.4 mils in thickness require very clean surfaces for electrostatic bonding The size of these nozzles presents a problem in handling as well as cleaning since each nozzle must be kept separate. A procedure is described for containing each nozzle individually and for cleaning it to produce a contamination-free surface, in order to give successful bonds to the nozzle-mounting holders.

Fig. 1 shows a holder for six nozzles. However, any number can be accommodated by extending the design of the holder to larger dimensions. The material is stainless steel with perforations in each compartment to allow fluid flow during the cleaning as well as vacuum suction and/or blow drying.

Fig. 2 describes the steps of the cleaning procedure. Trichloroethylene removes any waxes and the suction dries the nozzle before entering the NOCHROMIX* glass cleaner, which is a commercial oxidizing agent. The utilization of this cleaner has been suitable for obtaining acceptable parts. The use of detergent and acetone rinses are precautionary. However, the final blow dry with suction is also desirable so that water residues are not present.

The above procedures permit batch processing with almost 100% yield. * Trademark of Godax Laboratories, Inc.

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