UNCERTAINTY ANALYSIS OF POLARIZATION INTERFEROMETRIC MEASUREMENTS OF HARD DISK DRIVE RECORDING HEAD-MEDIA DYNAMIC SPACING

被引：0

作者：

Boonsang, Siridech ^{[1
,2
]}

Aroonjarernchay, Wanchai ^{[2
]}

机构：

[1] King Mongkuts Inst Technol Ladkrabang, Fac Engn, Chalongkrub Rd, Bangkok 10520, Thailand

[2] King Mongkuts Inst Technol Ladkrabang, Coll Data Storage Innovat, Bangkok 10520, Thailand

来源：

2012 11TH INTERNATIONAL CONFERENCE ON OPTICAL COMMUNICATIONS AND NETWORKS (ICOCN 2012) | 2012年

关键词：

Interferometry; Head-Media Spacing; Dynamic Flying Height Test; ERROR ANALYSIS;

D O I：

暂无

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this paper the numerical method based on Monte-Carlo techniques is utilized for the analysis of the flying height measurement uncertainty. In the current flying height tester, the prediction of error is the main concern in order to assure the attainable precision. In previous study, a simplified analytical method is normally used and it may not provide the accurate results of the error prediction especially when the amount of the flying height values becoming as low as sub-5 nm. In this paper, instead of using the analytical method for error analysis, the numerical method based on Monte-Carlo techniques is utilized. Our simulation results show that the measurement uncertainty is mainly from the variation in the optical constants of the DLC layer. They also show that the increasing of standard deviation of the optical constants of DLC layer causes the higher measurement uncertainty.

引用

页码：139 / 142

页数：4