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  • ASTM
    F2358-04 Standard Guide for Measuring Characteristics of Sapphire Substrates
    Edition: 2004
    $144.00
    Unlimited Users per year

Description of ASTM-F2358 2004

ASTM F2358-04

Withdrawn Standard: Standard Guide for Measuring Characteristics of Sapphire Substrates




ASTM F2358

Scope

1.1 This guide covers a nondestructive procedure to determine the form of clean, dry sapphire substrates.

1.2 This guide is applicable to substrates 25 mm or larger in diameter, with a minimum thickness of 100 μm. This guide is independent of surface finish.

1.3 The measurements described in this guide may be applied to the entire global surface of the substrate, or to smaller localized areas.

1.4 The value of the measurements described in this guide will be affected by the amount of edge exclusion (that is, the area around the perimeter of the part which is ignored). The amount excluded should be agreed upon by the producer and consumer using this standard.

1.5 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety and health practices and determine the applicability of regulatory requirements prior to use.


Keywords

backside processing; compound semiconductors; flatness; form; front-to-front deviation (FFD); measurement; restrained; sag; sapphire; sapphire substrates; sori; taper; total thickness variation (TTV); unrestrained


ICS Code

ICS Number Code 25.100.70 (Abrasives)


DOI: 10.1520/F2358-04



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