Added Title
Artificial neural network application for MCW prediction and modeling
Date of Publication
8-2010
Document Type
Master's Thesis
Degree Name
Master of Science in Electronics and Communications Engineering
Subject Categories
Electrical and Electronics | Systems and Communications
College
Gokongwei College of Engineering
Department/Unit
Electronics and Communications Engineering
Thesis Adviser
Elmer P. Dadios
Defense Panel Chair
Edwin J. Calilung
Defense Panel Member
Laurence Gan Lim
Edwin Sybingco
Abstract/Summary
Increased demands for higher storage capacity solution have driven the Hard Disk Drive (HDD) technological boundaries. As the Perpendicular Magnetic Recording (PMR) head shows promising increase in Areal Density away from the limit of Longitudinal Magnetic Recording, HDD companies have switch to 100% PMR drives. PMR heads requires tight physical specifications fabricating its Writer Element in order control the magnetic flux footprint of the writer on the disk. This magnetic footprint is also called the MCW (Magnetic Core Width). MCW variations in PMR head results to significant yield loss in DET (Dynamic Electrical Test). In addition to that, continuous tweaking in Wafer and Slider Fab process to improve yield contributes to changes in MCW performance during DET. A new method that will learn and predict the MCW model accurately is thus necessary to successfully control MCW variation. An Artificial Neural Network Multilayer Perceptron architecture was developed and used to derive the MCW model from Wafer & Slider process parameters. The Artificial Neural Network model was compared with conventional Multiple Linear Regression (MLR) method and has shown that ANN gives better accuracy in predicting the final MCW than MLR by 30%. The features of Artificial Neural Network for nonlinearity, autofitting transfer function, adaptivity and fault tolerance gave it an edge to provide better MCW prediction model than MLR.
Abstract Format
html
Language
English
Format
Electronic
Accession Number
CDTG004829
Shelf Location
Archives, The Learning Commons, 12F Henry Sy Sr. Hall
Physical Description
80 leaves, 28 cm.
Keywords
Magnetic cores; Neural networks (Computer science)
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Recommended Citation
Paguio, H. S. (2010). Artificial neural network application for MCW prediction & modeling. Retrieved from https://animorepository.dlsu.edu.ph/etd_masteral/6056
Embargo Period
6-1-2022