An Alternative Design of Light Delivery System for Heat-Assisted Magnetic Recording

2012 ◽  
Vol 217-219 ◽  
pp. 712-716 ◽  
Author(s):  
Alonggot Limcharoen ◽  
Chupong Pakpum ◽  
Nirun Witit-Anun ◽  
Surasing Chaiyakun ◽  
Pichet Limsuwan

The light delivery system is an important component in heat-assisted magnetic recording technology. It needs a light source and delivery the laser beam to the slider for writing process. However, the different designs lead to the different manufacturing processes, number of process steps and technologies consequently affect to the fabrication cost. This paper aims to propose an alternative design for a light delivery system. The complicated processes to manage a heat in a manufacturing are also take into account to have the final product meets the requirement for HAMR technology. The components are also fabricated which is made for a design and also presented.

2009 ◽  
Vol 45 (11) ◽  
pp. 5016-5021 ◽  
Author(s):  
Masakazu Hirata ◽  
Sachiko Tanabe ◽  
Manabu Oumi ◽  
Majung Park ◽  
Norio Chiba ◽  
...  

2013 ◽  
Vol 770 ◽  
pp. 331-334
Author(s):  
Piya Kovintavewat ◽  
Adisorn Kaewpukdee ◽  
Nitthita Chirdchoo

The current data recording technology is approaching its capacity limit approximately 1 Tbit/in2(terabits per square inch) known as superparamagnetic limit. Heat-assisted magnetic recording (HAMR) is one of the promising technologies that is being planned to be used as a new data recording technology to achieve the storage capacity beyond 1 Tbit/in2. In HAMR, the laser is applied to heat a magnetic medium during the writing process, which results in the unique transition characteristics if compared to a conventional system. This paper investigates the effects of thermal and cross-track variations to the transition characteristics (both transition center and transition parameter) of longitudinal HAMR systems. Experimental results indicate that the longitudinal HAMR system can withstand some amount of thermal and cross-track variations and still provides satisfactory system performance.


2012 ◽  
Vol 48 (11) ◽  
pp. 3280-3283 ◽  
Author(s):  
Baoxi Xu ◽  
Jianming Li ◽  
Yeow Teck Toh ◽  
Kaidong Ye ◽  
Jing Zhang

2017 ◽  
Vol 53 (2) ◽  
pp. 1-7 ◽  
Author(s):  
Kun Ma ◽  
Wai Ee Wong ◽  
Jianyi Wang ◽  
Guoxiao Guo ◽  
Youyi Wang

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