Apirat Siritaratiwat

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Popcorn noise is a large transient noise spike at the reader shortly after writing due to unstable domains in writer yoke. The popcorn noise was found to dependent on write frequency. It is firstly reported that the popcorn noise occurred by the write instability of shielded-single-pole head (SSPH) can be captured in row-bar level QST which is(More)
The electrostatic discharge (ESD) effect in GMR heads in the deshunting process is studied in order to prevent the damage in this process. The simulation and experiment results are investigated and compared. It is found from these results that sequences of deshunting process, currently operating, can cause the damage of GMR heads due to the ESD effect,(More)
As the data rate continuous increasing, in order to avoid signal reflection between a magnetic recording head and a read/write driver on hard disk drive interconnects (HDDIs), a practical approach, windowing, used to keep low insertion loss causes the higher crosstalk between lines. In this work, the crosstalk on idealized HDDI with percent variation of(More)
We did an experimental study to investigate the effect of the thermal stress due to the heater for adjusting adaptive flying height (AFH) on the readability and instability of tunneling magnetoresistance (TMR) sensors. The slider head consists of a small heater nearby the read/write elements for controlling the clearance between the read/write elements and(More)
Thickness of MgO which is an important parameter for applications in spin-transfer torque magnetic random access memory has effect to the temperature increase of a nanopillar. We investigated the temperature increment of a nanopillar due to the current injection for the current-induced magnetization switching. The thickness dependence of the nanopillar and(More)
Early View (Online Version of Record published before inclusion in an issue) (/journal/10.1002/(ISSN)2161-3915/earlyview) Additional Information high-rate irregular QC-LDPC codes with applications to PR2 and EPR2 channels. Trans Emerging Tel Tech.
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