Title :
Repeatable and nonrepeatable FH modulation study near head contact
Author :
Yuan, Z. ; Ong, C. ; Ang, S. ; Gan, S. ; Fujita, T. ; Santoso, B. ; Wong, H.
Author_Institution :
Data Storage Inst., Singapore, Singapore
Abstract :
Due to the head reliability and the challenge of fabricating small grain size media with high SNR, the schedule of HAMR technology keeps pushing back. The PMR extension becomes very important to provide enough time for the emerging technologies to be in place. As the PMR is approaching its areal density (AD) limit, the AD gain from head and medium is relatively small and becomes more difficult. It requires more AD gain from the other aspects, such as coding and signal processing, HDI, etc.
Keywords :
grain size; magnetic heads; magnetic recording; HAMR technology; PMR extension; areal density limit; grain size; head contact; head reliability; nonrepeatable FH modulation; Magnetic heads; Measurement uncertainty; Media; Modulation; Reliability; Standards; Testing;
Conference_Titel :
Magnetics Conference (INTERMAG), 2015 IEEE
Conference_Location :
Beijing
Print_ISBN :
978-1-4799-7321-7
DOI :
10.1109/INTMAG.2015.7157667
