| 发明名称 |
Method of fabricating a circuit board and circuit board provided thereby |
| 摘要 |
A circuit board such as a code disk having a smooth contact surface and a minute pattern is fabricated by depositing an alumite film on an aluminum and selectively filling electrically nonconductive and conductive materials in the cells in the crystals of the alumite film.
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| 申请公布号 |
US4463084(A) |
申请公布日期 |
1984.07.31 |
| 申请号 |
US19820430601 |
申请日期 |
1982.09.30 |
| 申请人 |
ALPS ELECTRIC CO., LTD. |
发明人 |
MITSUMORI, KEN'ICHI;AIKAWA, KAZUO |
| 分类号 |
H05K1/03;H05K1/05;H05K3/06;H05K3/10;H05K3/44;(IPC1-7):G03C5/00 |
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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