发明名称 |
Method for manufacturing circuit board and circuit board and power conversion module using the same |
摘要 |
A method for manufacturing a circuit board with high thermal dissipation includes the following steps: preparing a thermal conductive resin (21) composition including 70 to 95 mass% of an inorganic filler and 5 to 30 mass% of a resin composition that includes a liquid thermosetting resin, a thermoplastic resin powder, and a latent curing agent; bonding the thermal conductive resin composition (21) and a metal foil (22) together by heating at a temperature lower than a temperature at which the thermosetting resin starts to cure while applying pressure so that the thermal conductive resin composition (21) increases in viscosity and thus is solidified irreversibly; providing holes (25) and curing the thermosetting resin to form an insulating substrate (26); and forming a circuit pattern (27). This method can achieve improved productivity and low cost in processing the holes (25). It is preferable that the thermal conductive resin composition (21) is integral with a reinforcing material. <IMAGE> <IMAGE> <IMAGE> <IMAGE> <IMAGE> |
申请公布号 |
EP1265463(A3) |
申请公布日期 |
2004.06.30 |
申请号 |
EP20020012716 |
申请日期 |
2002.06.07 |
申请人 |
MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD. |
发明人 |
HIRANO, KOICHI;YAMASHITA, YOSHIHISA;NAKATANI, SEIICHI |
分类号 |
H05K1/03;H05K3/02 |
主分类号 |
H05K1/03 |
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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