公开(公告)号：US20170320247A1

公开(公告)日：2017-11-09

申请号：US15656679

申请日：2017-07-21

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Hideki AIZAWA ,  Shouji KOIZUMI ,  Michio OOKUBO ,  Kunio SHIBATA ,  Makoto HASHIMOTO

IPC: B29C45/14 ,  B23K26/352 ,  H01L23/31 ,  H01L23/00 ,  H01L23/495

CPC classification number: B29C45/14 ,  B23K26/352 ,  B29C45/14311 ,  B29K2705/00 ,  B29K2995/0072 ,  H01L21/4828 ,  H01L21/565 ,  H01L23/3114 ,  H01L23/3142 ,  H01L23/495 ,  H01L23/49548 ,  H01L23/50 ,  H01L23/562

Abstract: A composite including a metal member and a resin mold formed jointed to a surface of the metal member is provided, wherein the metal member has a roughened portion in a joint to the resin mold in the surface, and in a specific interface region including a joint interface between the roughened portion and the resin mold, the average volume in a unit area of voids between the roughened portion and the resin mold is 0.05 μm3 or smaller per 1 μm2 of a plane generally parallel to the joint interface, and the maximum dimension of the void is 1000 nm or smaller.