发明名称 |
Die and production method thereof, glass substrate and production method thereof and method of forming pattern on the glass substrate |
摘要 |
On the pressing surface of a die, a first protrusion having a substantially triangular cross section and a second protrusion having a length which is greater than a width thereof and a substantially trapezoidal cross section in planes extending through both length and width dimensions thereof are provided. By press forming, a groove with a substantially V-shaped cross section to mount an optical part, and a groove with a substantially inverse-trapezoidal cross section providing an alignment marking are formed, being inverse-transferred in correspondence with the respective protrusions on one principal surface of a glass substrate. Forming such a pattern on a glass substrate produced with a die enables alignment of the glass substrate with a mask for photolithography with high accuracy.
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申请公布号 |
US6379777(B1) |
申请公布日期 |
2002.04.30 |
申请号 |
US19990367729 |
申请日期 |
1999.11.02 |
申请人 |
NGK INSULATORS, LTD.;NGK OPTOCERAMICS CO., LTD. |
发明人 |
OTA TAKASHI;FUKUYAMA MASASHI;TOHYAMA KAZUTOSHI |
分类号 |
C03B11/06;C03B11/08;C03B13/14;C03B13/16;C03B23/03;(IPC1-7):B32B3/00;B24B1/00;B29D11/00;C03B13/00 |
主分类号 |
C03B11/06 |
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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