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发明名称
COOLING STRUCTURE OF PACKAGE FOR ELECTRONIC CIRCUIT
摘要
申请公布号
JPS642397(A)
申请公布日期
1989.01.06
申请号
JP19870157192
申请日期
1987.06.24
申请人
NEC CORP
发明人
UMEZAWA KAZUHIKO
分类号
H01L23/44;H01L23/46;H01L23/473;H05K7/20
主分类号
H01L23/44
代理机构
代理人
主权项
地址
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