This paper concerns the analytical determination and experimental  characterization  of  electromagnetic  forces exerted on high power IGBT wire bonds

Diénot, Jean-Marc

Medjahed, Hassen

Nogarède, Bertrand

Vidal, Paul-Etienne

English

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                              This is an author-deposited version published in: http://oatao.univ-toulouse.fr/ Eprints ID: 8950  To cite this version:   Vidal, Paul-Etienne and Medjahed, Hassen and Dienot, Jean-Marc and Nogarède, Bertrand Mechanical stress induced by electromagnetic forces on wire bonds of high power modules. (2012) In: EuroEm 2012 (European Electromagnetics), July 2012, Toulouse (France). Open Archive Toulouse Archive Ouverte (OATAO)  OATAO is an open access repository that collects the work of Toulouse researchers and makes it freely available over the web where possible.   Any correspondence concerning this service should be sent to the repository administrator: staff-oatao@listes-diff.inp-toulouse.fr  0HFKDQLFDOVWUHVVLQGXFHGE\HOHFWURPDJQHWLFIRUFHVRQZLUHERQGVRIKLJKSRZHUPRGXOHV+0HGMDKHG3(9LGDO/DERUDWRLUH*HQLHGH3URGXFWLRQ7RXORXVH8QLYHUVLW\7DUEHV)UDQFHSDXOHWLHQQHYLGDO#HQLWIU-0'LHQRW/DEFHHP,QVWLWXWHRI7HFKQRORJ\8QLYHUVLW\36DEDWLHU7DUEHV)UDQFH%1RJDUHGH/$3/$&(8057RXORXVH8QLYHUVLW\7RXORXVH)UDQFH$EVWUDFW²7KLVSDSHUFRQFHUQVWKHDQDO\WLFDOGHWHUPLQDWLRQDQGH[SHULPHQWDO FKDUDFWHUL]DWLRQ RI HOHFWURPDJQHWLF IRUFHV H[HUWHGRQKLJKSRZHU,*%7ZLUHERQGV.H\ZRUGV ZLUH ERQGLQJ HOHFWURPDJQHWLF IRUFHV PHFKDQLFDOVWUHVV, ,1752'8&7,21,QPDQ\DSSOLFDWLRQVSRZHUHOHFWURQLFVFRPSRQHQWVDOORZWUDQVIHUULQJ WKHHOHFWULFDOHQHUJ\EHWZHHQ WKHHOHFWULFDOVRXUFHDQGWKHHOHFWULFDOPDFKLQH)RUPDQ\\HDUVVWXGLHVDQGHIIRUWVKDYH EHHQ IRFXVHG RQ LQWHJUDWLRQ RI VWDWLF FRQYHUWHU KLJKSRZHUSHUIRUPDQFHVLQWRUHGXFHGYROXPHV&RQVHTXHQWO\GXHWRWKHVWUHVVREWDLQHGWKHSRZHUHOHFWURQLFVUHOLDELOLW\EHFRPHVDQ LPSRUWDQW ILHOGRIVWXG\ >@>@2QHRIWKHPDLQFDXVHVRIPDOIXQFWLRQ RI WKHVH FRPSRQHQWV LV WKHZLUH ERQGLQJ IDLOXUH6RPHPHFKDQLFDO VWUHVV RU GLVSODFHPHQWV FDQ EH DWWULEXWHG WRHOHFWURPDJQHWLF IRUFHV >@ )RU WKLV VWXG\ ZH LGHQWLI\ WKHGLVWULEXWLRQRIVXFKIRUFHVDQGZHSURSRVHH[SODQDWLRQVRIWKHVWUHVVHVDQGGLVSODFHPHQWVJHQHUDWHG,, (/(&7520$*1(7,&)25&((;35(66,21A. Analytical expression 7KHPDJQHWLFILHOGDQGWKHIRUFHVH[HUWHGRQWKHZLUHKDYHEHHQGHWHUPLQHGXVLQJUHVSHFWLYHO\WKH%LRW6DYDUWODZDQGWKH/DSODFH ODZ :H VSOLW WKH ZLUH LQ WZR VHJPHQWV LQ RUGHU WRVLPSOLI\WKHILHOGDQGIRUFHH[SUHVVLRQV:HDOVRYHULI\WKDWWKHPRVWSDUWRIWKHLQGXFWLRQILHOGLVFRQFHQWUDWHGQHDUWKHXSSHUZLUH ORRS )LJD:H KDYH FDOFXODWHG WZR W\SHV RI IRUFHVILUVWO\ WKHRZQ IRUFHV FRQVLGHULQJ WKHZLUH DV WZRDVVHPEOHGVHJPHQWV DQG IORZHG E\ WKH VDPH FXUUHQW 7KHQ WKH SDUDOOHOIRUFHVEHWZHHQ WZRQHDUE\ZLUHV)LJE VKRZV WKHGLUHFWLRQRI WKH IRUFHV H[HUWHG RQ WKH ZLUH GI DQG GI UHSUHVHQW WKHHOHPHQWDU\RZQIRUFHVDQGGI¶ WKHHOHPHQWDU\SDUDOOHO IRUFH9HFWRUVDUHRIEROGW\SHaLVWKHGLVWDQFHEHWZHHQWZRZLUHVW\SLFDOO\a=1 mmDQGq1, q2 DUH GHILQHG EHWZHHQ WZR ZLUHV L LV WKH ZLUH OHQJWKL=12.3 mmB. Results and discussion :H ILQDOO\ FRPSXWHG H[SUHVVLRQV   DQG  LQFRQVWDQW VHFWLRQ ERQG ZLUH RI D ' )(0 PRGHO )LJD ,WDOORZV XV WR GHWHUPLQH WKH 9RQ0LVHV PHFKDQLFDO VWUHVVLQGXFHG7KHPD[LPDOVWUHVVYDOXHN3DLVORFDWHGDWWKHWDLORI WKHZLUH MXVW LQ IURQW RI WKH KHHO DUHD )LJE ,Q DQRWKHUVWXG\ZH GHPRQVWUDWHG WKDWZLWK D $ FXUUHQW WKH WKHUPRPHFKDQLFDO VWUHVV ZLWKLQ WKH ZLUH UHDFKHV 03D ,W VKRZVWKDW WKH LPSDFW RI HOHFWURPDJQHWLF IRUFHV LV QRW UHOHYDQW1HYHUWKHOHVV GLVSODFHPHQWPHDVXUHPHQWV VKRZ VLJQLILFDQW ;DQG < D[LV GLVSODFHPHQWV 7KLV PD\ EH OLQNHG WRHOHFWURPDJQHWLFIRUFHVLGHQWLILHGSUHYLRXVO\(IIHFWLYHO\WKH=GLVSODFHPHQW LV FRPSOHWHO\ DWWULEXWHG WR WKH ZLUH WKHUPDOH[SDQVLRQ,,, &21&/86,21:HKDYHGHWHUPLQHGDQDO\WLFDOO\WKH/DSODFHIRUFHVH[HUWHGRQWKHZLUHERQGLQJ7KHPHFKDQLFDOVWUHVVGLVWULEXWLRQUHVXOWVVKRZ WKDW WKH LPSDFW RI WKHVH IRUFHV LV VWLOO LQVLJQLILFDQWFRPSDUHG WR WKH WKHUPDO HIIHFWV 1HYHUWKHOHVV PHDVXUHGGLVSODFHPHQWVFDQEHOLQNHGZLWKHOHFWURPDJQHWLFIRUFHV5()(5(1&(6>@ 0&LDSSD³6HOHFWHGIDLOXUHPHFKDQLVPVRIPRGHUQSRZHUPRGXOHV´0LFURHOHFWURQLFV5HOLDELOLW\3,,6>@ $ &DVWHOOD]]L HW DO (OHFWURWKHUPDO PRGHO RI D KLJKYROWDJH ,*%7PRGXOHIRUUHDOLVWLFVLPXODWLRQRISRZHUFRQYHUWHUV,(((6ROLG6WDWH'HYLFH5HVHDUFK&RQI,661>@ 3 /HIUDQF ³(WXGH FRQFHSWLRQ HW UpDOLVDWLRQ GH FLUFXLWV GH FRPPDQGHG¶,*%7GHIRUWHSXLVVDQFH´3KG1DWLRQDO,QVWLWXWHRI$SSOLHG6FLHQFHVRI/\RQ,6$/)LJXUHDDQG)LJXUHE,QGXFWLRQILHOGGLVWULEXWLRQDQGIRUFHH[SUHVVHG)LJXUHDDQG)LJXUHE(OHFWURPDJQHWLFIRUFHDSSOLHGDQG9RQ0LVHV0HFKDQLFDOVWUHVVGLVWULEXWLRQN3D

Mechanical stress induced by electromagnetic forces on wire bonds of high power modules

https://hal.archives-ouvertes.fr/hal-00975195

Mechanical stress induced by electromagnetic forces on wire bonds of high power modules

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