By Topic

Pole Tip Recession (PTR) measurements with high accuracy, precision, and throughput

Sign In

Cookies must be enabled to login.After enabling cookies , please use refresh or reload or ctrl+f5 on the browser for the login options.

Formats Non-Member Member
$31 $13
Learn how you can qualify for the best price for this item!
Become an IEEE Member or Subscribe to
IEEE Xplore for exclusive pricing!
close button

puzzle piece

IEEE membership options for an individual and IEEE Xplore subscriptions for an organization offer the most affordable access to essential journal articles, conference papers, standards, eBooks, and eLearning courses.

Learn more about:

IEEE membership

IEEE Xplore subscriptions

4 Author(s)
Kulkarni, A.V. ; Read-Rite Corp., Fremont, CA, USA ; Chilamakuri, Sameera K. ; Gupta, B.K. ; Menon, A.

Accurate and precise Pole Tip Recession (PTR) measurement is vital to meet the magnetic spacing requirement and to achieve higher electrical test yield at the Head-Gimbel Assembly (HGA). To obtain a high throughput in PTR measurements, optical interferometers are the most commonly used techniques. PTR values determined by optical tools will however need to be corrected for material dissimilarities and the roughness effects. The correction factor or “PTR offset” values are influenced by variations in the optical properties of the pole tip and ABS surfaces. The changes in PTR offsets values due to variation in slider surface roughness and overcoat properties is the subject of this paper

Published in:

Magnetics, IEEE Transactions on  (Volume:36 ,  Issue: 5 )