18 m electrodeposited copper foil for flex fatigue applications
The strain-based flex fatigue of 18 m thick copper foil is evaluated over a wide range of strain amplitudes. Seven electrodeposited foils, four commercial grades and three experimental foils, and a commercial grade rolled foil are characterized. The fatigue life versus cyclic strain amplitude curve...
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| Veröffentlicht in: | Circuit world 1999-03, Vol.25 (1), p.38-46 |
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| container_title | Circuit world |
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| creator | Merchant, Harish D. Minor, Melvin G. Clouser, Sid J. Leonard, Dan T. |
| description | The strain-based flex fatigue of 18 m thick copper foil is evaluated over a wide range of strain amplitudes. Seven electrodeposited foils, four commercial grades and three experimental foils, and a commercial grade rolled foil are characterized. The fatigue life versus cyclic strain amplitude curve in the high strain amplitude (low cycle) and low strain amplitude (high cycle) regimes is developed for each foil. On the basis of fatigue life (Nf) and fatigue ductility (Df), the low cycle fatigue performance of eight foils is ranked. Universal correlations of Nf and Df with the uniaxial tensile strength are established. Two electrodeposited foils, experimental foil DF 8 in the high strain amplitude regime and commercial foil DF 9 in the low strain amplitude regime, have been shown to display fatigue performance comparable to that of the commercial rolled GR 8 foil. |
| doi_str_mv | 10.1108/03056129910244842 |
| format | Article |
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Seven electrodeposited foils, four commercial grades and three experimental foils, and a commercial grade rolled foil are characterized. The fatigue life versus cyclic strain amplitude curve in the high strain amplitude (low cycle) and low strain amplitude (high cycle) regimes is developed for each foil. On the basis of fatigue life (Nf) and fatigue ductility (Df), the low cycle fatigue performance of eight foils is ranked. Universal correlations of Nf and Df with the uniaxial tensile strength are established. 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Seven electrodeposited foils, four commercial grades and three experimental foils, and a commercial grade rolled foil are characterized. The fatigue life versus cyclic strain amplitude curve in the high strain amplitude (low cycle) and low strain amplitude (high cycle) regimes is developed for each foil. On the basis of fatigue life (Nf) and fatigue ductility (Df), the low cycle fatigue performance of eight foils is ranked. Universal correlations of Nf and Df with the uniaxial tensile strength are established. Two electrodeposited foils, experimental foil DF 8 in the high strain amplitude regime and commercial foil DF 9 in the low strain amplitude regime, have been shown to display fatigue performance comparable to that of the commercial rolled GR 8 foil.</description><subject>Anisotropy</subject><subject>Annealing</subject><subject>Circuits</subject><subject>Copper</subject><subject>Ductility</subject><subject>Fatigue</subject><subject>Flexible circuit</subject><subject>Strain</subject><subject>Studies</subject><issn>0305-6120</issn><issn>1758-602X</issn><issn>0305-6120</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>1999</creationdate><recordtype>article</recordtype><sourceid>AFKRA</sourceid><sourceid>AZQEC</sourceid><sourceid>BENPR</sourceid><sourceid>CCPQU</sourceid><sourceid>DWQXO</sourceid><sourceid>GNUQQ</sourceid><recordid>eNptkE1Lw0AQhhdRsFZ_gLfgwZPRmf3IJifR-gktelDsbUl3J5KaNjGbQP33bql4sF7mg3neYd5h7BjhHBHSCxCgEuRZhsClTCXfYQPUKo0T4NNdNljP4wDAPjvwfg4AQnEcsEtMo0VEFdmurR01tS87cpGtm4baqKjLKoRQVLSKirwr33uK8qapShuaeukP2V6RV56OfvKQvd7dvowe4vHT_ePoahwTaqnj1KIG4STHGU-5kIVVPHMuseiSGcqcbKITmXGOoIID5Si0FmZaSyg0oBiy083epq0_e_KdWZTeUlXlS6p7b3gazCegA3jyB5zXfbsMtxmOmRI80SJA8QYqfUcr07TlIm-_TN5-mDDWysg3bibT62vxPNHmJvCw4WlBbV65XwWCWb_fbL0_SM7-l2yhpnGF-AaoeoEA</recordid><startdate>19990301</startdate><enddate>19990301</enddate><creator>Merchant, Harish D.</creator><creator>Minor, Melvin G.</creator><creator>Clouser, Sid J.</creator><creator>Leonard, Dan T.</creator><general>MCB UP Ltd</general><general>Emerald Group Publishing Limited</general><scope>BSCLL</scope><scope>0U~</scope><scope>1-H</scope><scope>7SP</scope><scope>7TA</scope><scope>7WY</scope><scope>7WZ</scope><scope>7XB</scope><scope>8AO</scope><scope>8FD</scope><scope>8FE</scope><scope>8FG</scope><scope>AFKRA</scope><scope>ARAPS</scope><scope>AZQEC</scope><scope>BENPR</scope><scope>BEZIV</scope><scope>BGLVJ</scope><scope>CCPQU</scope><scope>DWQXO</scope><scope>F28</scope><scope>FR3</scope><scope>F~G</scope><scope>GNUQQ</scope><scope>HCIFZ</scope><scope>JG9</scope><scope>K6~</scope><scope>L.-</scope><scope>L.0</scope><scope>L7M</scope><scope>M0C</scope><scope>M2P</scope><scope>P5Z</scope><scope>P62</scope><scope>PQBIZ</scope><scope>PQEST</scope><scope>PQQKQ</scope><scope>PQUKI</scope><scope>Q9U</scope><scope>S0W</scope><scope>8BQ</scope></search><sort><creationdate>19990301</creationdate><title>18 m electrodeposited copper foil for flex fatigue applications</title><author>Merchant, Harish D. ; 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Seven electrodeposited foils, four commercial grades and three experimental foils, and a commercial grade rolled foil are characterized. The fatigue life versus cyclic strain amplitude curve in the high strain amplitude (low cycle) and low strain amplitude (high cycle) regimes is developed for each foil. On the basis of fatigue life (Nf) and fatigue ductility (Df), the low cycle fatigue performance of eight foils is ranked. Universal correlations of Nf and Df with the uniaxial tensile strength are established. Two electrodeposited foils, experimental foil DF 8 in the high strain amplitude regime and commercial foil DF 9 in the low strain amplitude regime, have been shown to display fatigue performance comparable to that of the commercial rolled GR 8 foil.</abstract><cop>Bradford</cop><pub>MCB UP Ltd</pub><doi>10.1108/03056129910244842</doi><tpages>9</tpages></addata></record> |
| fulltext | fulltext |
| identifier | ISSN: 0305-6120 |
| ispartof | Circuit world, 1999-03, Vol.25 (1), p.38-46 |
| issn | 0305-6120 1758-602X 0305-6120 |
| language | eng |
| recordid | cdi_proquest_miscellaneous_28129607 |
| source | Emerald Journals |
| subjects | Anisotropy Annealing Circuits Copper Ductility Fatigue Flexible circuit Strain Studies |
| title | 18 m electrodeposited copper foil for flex fatigue applications |
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