Invention Grant
- Patent Title: Method of manufacturing a thermally assisted magnetic head
- Patent Title (中): 制造热辅助磁头的方法
-
Application No.: US12199526Application Date: 2008-08-27
-
Publication No.: US07930817B2Publication Date: 2011-04-26
- Inventor: Seiichi Takayama , Koji Shimazawa , Yasuhiro Ito
- Applicant: Seiichi Takayama , Koji Shimazawa , Yasuhiro Ito
- Applicant Address: JP Tokyo
- Assignee: TDK Corporation
- Current Assignee: TDK Corporation
- Current Assignee Address: JP Tokyo
- Agency: Oliff & Berridge, PLC
- Priority: JP2007-340678 20071228
- Main IPC: G11B5/127
- IPC: G11B5/127 ; H04R31/00

Abstract:
A method comprises an opposing step of arranging a light-shielding film 50 having a recessed surface 52 and a pinhole 54 formed within the recessed surface 52 such that an end face 54X of the pinhole 54 of the light-shielding film 50 on the recessed surface 52 side and a light exit surface 4B oppose each other, while the shortest distance A52 between the light-shielding film 50 and a medium-opposing surface S in a thickness direction of the light-shielding film 50 is shorter than the shortest distance A54 between the end face 54X of the pinhole 54 on the side opposite from a transparent substrate 58 and the light exit surface 4B; a light-emitting step of causing a light-emitting device 3 to emit emission light 3A; and a detecting step of detecting the light transmitted through the pinhole 54 after being emitted from the light exit surface 4B.
Public/Granted literature
- US20090165285A1 METHOD OF MANUFACTURING THERMALLY ASSISTED MAGNETIC HEAD AND APERTURE APPARATUS USED IN THE METHOD Public/Granted day:2009-07-02
Information query
IPC分类: