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Document ID (ISN)49632
CIS number 88-981
ISSN - Serial title 0037-4512 - Sichere Arbeit
Year 1987
Convention or series no.
Author(s) Fischer G., Gränz A.
Title Atmospheric ionisation and radiation sources in production areas of a microchip factory
Original title Ionenklima und Strahlenquellen in Produktionsstätten eines Chip-Werkes [in German]
Bibliographic information Jan. 1987, Vol.40, No.1, p.13-16. 39 ref.
Abstract Although high-voltage ion implantation equipment and thickness meters were in use in production areas of a microchip manufacturing facility, monthly exposures of employees were around 5mrem, i.e. close to natural background levels and well below the 166mrem maximum allowable dose per year (in Austria) for members of the general population. No negative ions were detectable in the air of fully air-conditioned offices or clean rooms. Positive ions were detectable at all measuring points; the positive ion concentration in the room with the thickness meter rose several-fold when the device was in use. Even in non-air-conditioned offices, total ion levels were lower than in the open air.
Descriptors (primary) radiation equipment and processes; air-conditioned premises; microelectronics; clean rooms; electronics industry; atmospheric ionization
Descriptors (secondary) occupational health survey
Document type D - Periodical articles
Subject(s) Radiation
Broad subject area(s) Physical hazards
Browse category(ies) Manufacturing of electrical appliances and equipment
Heating and air conditioning
Electronics industry