公开(公告)号：US20180076167A1

公开(公告)日：2018-03-15

申请号：US15588557

申请日：2017-05-05

Applicant: Wire Technology Co., LTD.

Inventor： Chien-Hsun CHUANG ,  Hsing-Hua TSAI ,  Shang-Chih WANG

IPC: H01L23/00

CPC classification number: H01L24/45 ,  H01L21/48 ,  H01L24/05 ,  H01L24/29 ,  H01L24/32 ,  H01L24/48 ,  H01L24/73 ,  H01L2224/04042 ,  H01L2224/05155 ,  H01L2224/05582 ,  H01L2224/05624 ,  H01L2224/05644 ,  H01L2224/05655 ,  H01L2224/29101 ,  H01L2224/32225 ,  H01L2224/43848 ,  H01L2224/45014 ,  H01L2224/45015 ,  H01L2224/45016 ,  H01L2224/45139 ,  H01L2224/45164 ,  H01L2224/45565 ,  H01L2224/45624 ,  H01L2224/45644 ,  H01L2224/45664 ,  H01L2224/48091 ,  H01L2224/48105 ,  H01L2224/48227 ,  H01L2224/48472 ,  H01L2224/73265 ,  H01L2224/85181 ,  H01L2224/85205 ,  H01L2224/85447 ,  H01L2924/01046 ,  H01L2924/01047 ,  H01L2924/01079 ,  H01L2924/0132 ,  H01L2924/10253 ,  H01L2924/13055 ,  H01L2924/3512 ,  H01L2924/00014 ,  H01L2924/014 ,  H01L2924/00012 ,  H01L2924/206 ,  H01L2924/00

Abstract: A metallic ribbon for power module packaging is described. The metallic ribbon has a rectangular, oval or oblong cross section. The composition of the metallic ribbon is silver-palladium alloy containing 0.2 to 6 wt % Pd. The metallic ribbon has a thickness of 10 μm to 500 μm. The width of the metallic ribbon is 2 to 100 times its thickness. The metallic ribbon includes a plurality of grains. The average grain size of the grains observed in the transverse cross section is 2 μm to 10 μm. The metallic ribbon has a plurality of twin grains observed in the transverse cross section, and the number of twin grains observed in the transverse cross section accounts for at least 5% of the total number of grains observed in the transverse cross section.