ASTM F140-98(2003)
Historical Standard: ASTM F140-98(2003) Standard Practice for Making Reference Glass-Metal Butt Seals and Testing for Expansion Characteristics by Polarimetric Methods
SUPERSEDED (see Active link, below)
ASTM F140
1. Scope
1.1 This practice covers the preparation and testing of reference glass-metal butt seals of two general configurations: one applicable to determining stress in the glass and the other to determining the degree of mismatch of thermal expansion (or contraction). Tests are in accordance with Test Method F 218 (Section 1.1).
1.2 This practice applies to all glass and metal (or alloy) combinations normally sealed together in the production of electronic components. It should not be attempted with glass-metal combinations having widely divergent thermal expansion (or contraction) properties.
2. Referenced Documents (purchase separately) The documents listed below are referenced within the subject standard but are not provided as part of the standard.
ASTM Standards
F47 Test Method for Crystallographic Perfection of Silicon by Preferential Etch Techniques
F79 Specification for Type 101 Sealing Glass
F105 Specification for Type 58 Borosilicate Sealing Glass
F218 Test Method for Measuring Optical Retardation and Analyzing Stress in Glass
Keywords
expansion mismatch; glass-metal seals; Seals--electronic applications; Specimen preparation (for testing)--semiconductor materials; Thermal expansion/contraction; Butt seals; Electronic materials/applications; Glass electronic seals; Metal electronic components/devices ;
ICS Code
ICS Number Code 21.140 (Seals, glands)
DOI: 10.1520/F0140-98R03
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