• Aucun résultat trouvé

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

N/A
N/A
Protected

Academic year: 2021

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

Copied!
2
0
0

Texte intégral

(1)

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).

O

pen

A

rchive

T

oulouse

A

rchive

O

uverte (

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:

[email protected]

(2)

0HFKDQLFDOVWUHVVLQGXFHGE\HOHFWURPDJQHWLFIRUFHV

RQZLUHERQGVRIKLJKSRZHUPRGXOHV



+0HGMDKHG3(9LGDO

/DERUDWRLUH*HQLHGH3URGXFWLRQ 7RXORXVH8QLYHUVLW\7DUEHV)UDQFH SDXOHWLHQQHYLGDO#HQLWIU -0'LHQRW /DEFHHP,QVWLWXWHRI7HFKQRORJ\ 8QLYHUVLW\36DEDWLHU7DUEHV)UDQFH %1RJDUHGH /$3/$&(805 7RXORXVH8QLYHUVLW\7RXORXVH )UDQFH  $EVWUDFW²7KLVSDSHUFRQFHUQVWKHDQDO\WLFDOGHWHUPLQDWLRQDQG H[SHULPHQWDO FKDUDFWHUL]DWLRQ RI HOHFWURPDJQHWLF IRUFHV H[HUWHG RQKLJKSRZHU,*%7ZLUHERQGV

.H\ZRUGVZLUH ERQGLQJ HOHFWURPDJQHWLF IRUFHV PHFKDQLFDO VWUHVV

, ,1752'8&7,21

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nalytical expression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

HOHPHQWDU\RZQIRUFHVDQGGI¶WKHHOHPHQWDU\SDUDOOHOIRUFH 9HFWRUVDUHRIEROGW\SH        aLVWKHGLVWDQFHEHWZHHQWZRZLUHVW\SLFDOO\a=1 mmDQG

q1, q2DUH GHILQHG EHWZHHQ WZR ZLUHV L LV WKH ZLUH OHQJWK

L=12.3 mm

B. Results and discussion

:H ILQDOO\ FRPSXWHG H[SUHVVLRQV     DQG   LQ FRQVWDQW VHFWLRQ ERQG ZLUH RI D ' )(0 PRGHO )LJ D  ,W DOORZV XV WR GHWHUPLQH WKH 9RQ0LVHV PHFKDQLFDO VWUHVV

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

,,, &21&/86,21

:HKDYHGHWHUPLQHGDQDO\WLFDOO\WKH/DSODFHIRUFHVH[HUWHG RQWKHZLUHERQGLQJ7KHPHFKDQLFDOVWUHVVGLVWULEXWLRQUHVXOWV VKRZ WKDW WKH LPSDFW RI WKHVH IRUFHV LV VWLOO LQVLJQLILFDQW FRPSDUHG WR WKH WKHUPDO HIIHFWV 1HYHUWKHOHVV PHDVXUHG GLVSODFHPHQWVFDQEHOLQNHGZLWKHOHFWURPDJQHWLFIRUFHV

5()(5(1&(6

>@ 0&LDSSD³6HOHFWHGIDLOXUHPHFKDQLVPVRIPRGHUQSRZHUPRGXOHV´ 0LFURHOHFWURQLFV5HOLDELOLW\  3,,6   >@ $ &DVWHOOD]]L HW DO (OHFWURWKHUPDO PRGHO RI D KLJKYROWDJH ,*%7

PRGXOHIRUUHDOLVWLFVLPXODWLRQRISRZHUFRQYHUWHUV,(((6ROLG6WDWH 'HYLFH5HVHDUFK&RQI,661

>@ 3 /HIUDQF ³(WXGH FRQFHSWLRQ HW UpDOLVDWLRQ GH FLUFXLWV GH FRPPDQGH G¶,*%7GHIRUWHSXLVVDQFH´3KG1DWLRQDO,QVWLWXWHRI$SSOLHG6FLHQFHV RI/\RQ,6$/    )LJXUH D DQG)LJXUH E ,QGXFWLRQILHOGGLVWULEXWLRQDQG IRUFHH[SUHVVHG    )LJXUH D DQG)LJXUH E (OHFWURPDJQHWLFIRUFHDSSOLHGDQG 9RQ0LVHV0HFKDQLFDOVWUHVVGLVWULEXWLRQ N3D

Références

Documents relatifs