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Preliminary survey report: control technology for gallium arsenide processing at Hewlett Packard, San Jose, California.
Cincinnati, OH: U.S. Department of Health and Human Services, Public Health Service, Centers for Disease Control, National Institute for Occupational Safety and Health, ECTB 163-14a, 1987 Apr; :1-9
A walk through survey of the Hewlett Packard Company (SIC-3674) facility in San Jose, California, was prompted by an interest in the use of gallium-arsenide (1303000) as an alternative to silicon for the semiconductor industry. This facility produced gallium-arsenide and gallium-phosphide (12063988). Potential hazards existed from solvents, acids, and gases employed in wafer production. Some of the solvents included fluorocarbon compounds, xylene (1330207), and 1,1,1-trichloroethane (25323891). Arsine (7784421), phosphine (7803512), hydrogen (1333740), and silane (7803625) gases were used in the production processes. In the crystal growing area, operators wore smocks, disposable gloves and safety glasses. Disposable respirators were no longer required during cleaning of the crystal pullers. However, supplied air lines were required during the gas cylinder change operation. Self contained breathing apparatus was available for emergency situations. Worker exposures to gallium- arsenide or arsenic (7440382) dust were lower during the cleaning operation than they had been in other similar facilities, perhaps due to the small size of the crystal pullers used at this particular facility. According to the author, this facility is a possible candidate for an in depth industry survey, but may not be representative of the entire industry.
NIOSH-Author; NIOSH-Survey; Field-Study; Region-9; Semiconductors; Arsenic-compounds; Toxic-vapors; Toxic-gases; Organic-solvents
1303-00-0; 12063-98-8; 1330-20-7; 25323-89-1; 7784-42-1; 7803-51-2; 1333-74-0; 7803-62-5; 7440-38-2
Field Studies; Control Technology
NTIS Accession No.
National Institute for Occupational Safety and Health
Page last reviewed: May 5, 2020
Content source: National Institute for Occupational Safety and Health Education and Information Division