发明名称 |
Multilayer printed wiring board |
摘要 |
A process for forming a multilayer printed wiring board comprising integrally laminating a plurality of insulating circuit boards having circuits formed on insulating substrates and interlaminar insulating layers sandwiched between adjacent insulating circuit boards, and forming via holes for making electrical connection between two or more layers of circuits. Where the difference between the glass transition point of an interlaminar insulating layer and that of the adjoining insulating substrate is not greater than 60 DEG C., proof against exfoliation due to heat history of the board and high reliability of insulation and through-hole connection is achieved. The interlaminar insulating layers desirably are B-staged and have a B-stage resin flow of less than 1%.
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申请公布号 |
US5688408(A) |
申请公布日期 |
1997.11.18 |
申请号 |
US19960674876 |
申请日期 |
1996.07.02 |
申请人 |
HITACHI CHEMICAL COMPANY LTD. |
发明人 |
TSURU, YOSHIYUKI;ARIKE, SHIGEHARU;SUGIYAMA, TAKASHI;MIYASHITA, SHINJIROU;SUZUKI, TAKAYUKI |
分类号 |
H01L21/48;H01L23/14;H01L23/498;H01L23/538;H05K1/00;H05K3/46;(IPC1-7):B44C1/22 |
主分类号 |
H01L21/48 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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