Transcription of IPC-TM-650 TEST METHODS MANUAL N/A - gmsystems.com
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IPC-TM-650 TEST METHODS MANUAL N/A - gmsystems.com
PurposeThis test method covers procedures for deter-mining the electrical resistivity of copper foil. It provides for anaccuracy of percent of test specimens having a resis-tance of ohm (10 microhms) or DefinitionResistivity is the electrical resistance of abody of unit length and unit cross-sectional area or unitweight. Volume resistivity is commonly expressed in ohms fora theoretical conductor of unit length and cross-sectionalarea; in English units in ohm circular mil/ft and in metric unitsin ohm mm2/meter. It may be calculated by the following for- :p. = volume resistivity in ohm circular mil/ft or ohm mm2/meter,A = cross-sectional area in circular mils, or sq mm,L = gauge length, used to determine R, in ft, or m, andR = measured resistance in resistivity is commonly expressed in ohms for a theo-retical conductor of unit length and weight.
IPC-TM-650 TEST METHODS MANUAL Number 2.5.14 Subject Resistivity of Copper Foil Date 8/76 Revision A Originating Task Group N/A Material in this Test Methods Manual was voluntarily established by Technical Committees of the IPC. This material is advisory only and its use or adaptation is entirely voluntary. IPC disclaims all liability of any ...
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