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SEMI C3.28 : 2000

Withdrawn

Withdrawn

A Withdrawn Standard is one, which is removed from sale, and its unique number can no longer be used. The Standard can be withdrawn and not replaced, or it can be withdrawn and replaced by a Standard with a different number.

STANDARD FOR NITROGEN (N2), VLSI GRADE, IN CYLINDERS, 99.9996% QUALITY

Withdrawn date

01-03-2003

Published date

12-01-2013

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Suppliers recognizing the importance of impurity content of gases in the manufacture of semiconductors, responded by introducing products with improved analytical characterization, notably for trace impurities. The following criteria was considered when determining the defined analytical method: Ease of Use; Accuracy; Maintenance; Reliability; Sensitivity; Versatility; Precision; and Availability of Equipment. Specification is specific to Nitrogen (N2), VLSI Grade in Cylinders - used in the processing and manufacture of semiconductors etc. Gas complying with the specifications will commonly contain more of the major component than the minimum permissible limit or contain less of an impurity (or several impurities) than the SEMI C3 maximum permissible limit.

DevelopmentNote
Not available for sale from ILI, customer to contact SEMI. (05/2001)
DocumentType
Standard
PublisherName
Semiconductor Equipment & Materials Institute
Status
Withdrawn

SEMI E49.7 : 2004E PURITY GUIDE FOR THE DESIGN AND MANUFACTURE OF ULTRAPURE WATER AND LIQUID CHEMICAL SYSTEMS IN SEMICONDUCTOR PROCESS EQUIPMENT

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