发明名称 |
METHOD OF MANUFACTURING THERMALLY-ASSISTED MAGNETIC HEAD AND ALIGNMENT APPARATUS THEREOF |
摘要 |
A method of manufacturing a thermally-assisted magnetic head includes providing a light source unit including a laser diode; providing a reflection board, and a photo detector; driving the laser diode to emit a light beam towards the reflection board; performing an alignment between the light source unit and the thermally-assisted magnetic recording head section, based on a reflected light of the light beam reflected by the reflection board, then passed through the optical waveguide and finally detected by the photo detector obtaining the maximum power in a LED emission state of the laser diode; and bonding the light source unit to the slider after the alignment is completed. It improves alignment accuracy between a light source unit and a slider during a bonding process therebetween, prevents a laser diode of the light source unit instability, and improves performance of the thermally-assisted magnetic head finally. |
申请公布号 |
US2015247722(A1) |
申请公布日期 |
2015.09.03 |
申请号 |
US201414193337 |
申请日期 |
2014.02.28 |
申请人 |
SAE Magnetics (H.K.) Ltd. |
发明人 |
TAKAYAMA Seiichi;FUJII Ryuji;HONDA Takashi;HARAKAWA Osamu;KOBA Tadatoshi |
分类号 |
G01B11/27;G11B5/127 |
主分类号 |
G01B11/27 |
代理机构 |
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代理人 |
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主权项 |
1. A method of manufacturing a thermally-assisted magnetic head, the method comprising:
providing a slider having a thermally-assisted magnetic recording head section thereon, the thermally-assisted magnetic recording head section including a magnetic pole, an optical waveguide, and a plasmon generator, the magnetic pole and the optical waveguide both extending toward an air bearing surface, the plasmon generator being located between the magnetic pole and the optical waveguide; providing a light source unit including a laser diode, the light source unit being attached at a surface of the slider which is opposite the air bearing surface; providing a reflection board positioned at the side of the air bearing surface of the slider, and a photo detector positioned at the side of the slider which is opposite the air bearing surface and located above the laser diode; driving the laser diode to emit a light beam towards the reflection board; performing an alignment between the light source unit and the thermally-assisted magnetic recording head section, based on a reflected light of the light beam reflected by the reflection board, then passed through the optical waveguide and finally detected by the photo detector obtaining the maximum power in a LED emission state of the laser diode; and bonding the light source unit to the slider after the alignment is completed. |
地址 |
Hong Kong CN |