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Safe Removal of Arsenic Dust from Gallium Arsenide Cryst

Award Information
Agency: Department of Health and Human Services
Branch: N/A
Contract: 1 R43 OH03220-1,
Agency Tracking Number: 25297
Amount: $75,177.00
Phase: Phase I
Program: SBIR
Solicitation Topic Code: N/A
Solicitation Number: N/A
Solicitation Year: N/A
Award Year: 1994
Award Start Date (Proposal Award Date): N/A
Award End Date (Contract End Date): N/A
Small Business Information
42 Lorraine Rd
Westwood, MA 02090
United States
HUBZone Owned: No
Woman Owned: No
Socially and Economically Disadvantaged: No
Principal Investigator
 Rowland Ware
 (617) 320-0291
Business Contact
Phone: () -
Research Institution

We will make a major improvement in the safety of operation of Liquid Encapsulated Czochralskicrystal pullers used in the growth of gallium arsenide. The hazard is caused by the presence of finelydivided arsenic dust on the inside of the pullers after growth. Some of this is believed to convert toarsine. Operators remove the dust by vacuum cleaning and scrubbing with tissues, and hence areexposed to high levels of toxic and carcinogenic material. The hazard will be eliminated by chemicalremoval of the arsenic. This will eliminate the health risk to operators, decrease operator turnover (thepuller cleaning job is generally detested) and improve the economics of the process by saving the hoursspent cleaning. The economics will also be improved by reducing the volume of toxic waste andproducing it in a form that is more easily handled.

* Information listed above is at the time of submission. *

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