Invention Grant
- Patent Title: Method for texturing a magnetic disk silicate glass substrate
- Patent Title (中): 用于纹理磁性硅酸盐玻璃基材的方法
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Application No.: US329993Application Date: 1989-03-29
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Publication No.: US5087481APublication Date: 1992-02-11
- Inventor: Tu Chen , Toru Iseda , Kazuo Mannami
- Applicant: Tu Chen , Toru Iseda , Kazuo Mannami
- Applicant Address: CA Milpitas JPX Tokyo
- Assignee: Komag, Inc.,Asahi Glass Co., Ltd.
- Current Assignee: Komag, Inc.,Asahi Glass Co., Ltd.
- Current Assignee Address: CA Milpitas JPX Tokyo
- Priority: JPX61-239249 19861009; JPX61-294927 19861212; JPX62-193731 19870804; JPX62-224034 19870909
- Main IPC: G11B5/73
- IPC: G11B5/73
Abstract:
A glass disk is subjected to a chemical or gentle mechanical polishing step to remove microcracks or scratches in the disk surface prior to chemically texturing the disk. Thereafter, magnetic media is deposited onto the glass disk. We have discovered that by performing this pre-texturing polishing step, we can avoid the phenomenon of "linkage bumps," which could otherwise cause the resulting magnetic disk to fail a glide-type test or to cause a read/write head crash.
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