发明名称 |
Process of making CD uniformity in high track density recording head |
摘要 |
A process for achieving tighter reader and writer track width control is disclosed. The write gap layer is used as the plating seed on which the upper pole is electro-formed. This allows the write gap layer to then be deposited through a precisely controllable process such as sputtering. Since less material needs to be removed during pole trimming, a thinner layer of photoresist may be used, resulting in improved dimensional control.
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申请公布号 |
US7293344(B2) |
申请公布日期 |
2007.11.13 |
申请号 |
US20040886888 |
申请日期 |
2004.07.08 |
申请人 |
HEADWAY TECHNOLOGIES, INC. |
发明人 |
HAN CHERNG-CHYI;LAUCHLAN LAURIE;LIU XIAOMIN |
分类号 |
G11B5/127;B44C1/22 |
主分类号 |
G11B5/127 |
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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