IP Library Granted Patent US 8,521,670
Granted Patent B2
US 8,521,670 · App. 13/115,884 · Granted Aug 27, 2013

Artificial neural network application for magnetic core width prediction and modeling for magnetic disk drive manufacture

Inventor: Hernan J. S. Paguio (Laguna, PH)
Assignee: HGST Netherlands B.V.
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Quick Facts
Patent No.
US 8,521,670
App. No.
13/115,884
Granted
Aug 27, 2013
Kind
B2
Abstract

A method for predicting and optimizing magnetic core width of a write head using neural networks to analyze manufacturing parameters, and determining new manufacturing parameters that will provide more optimal magnetic core width results. The manufacturing parameters can include: write pole flare point; wrap around shield dimension; and side gap dimension.

Claims (28)

1. A method for manufacturing magnetic heads for magnetic data recording, comprising:

collecting data regarding manufacturing parameters;

constructing a neural network;

analyzing the data using the neural network to produce an output from the neural network; and

using the output from the neural network to optimize a magnetic core width of a magnetic write head.

2. The method as in claim 1 , wherein the data includes: a write pole flare point; a wrap around shield dimension; and a side gap.

3. The method as in claim 2 wherein the data includes a magnetic sensor stripe height and a reader/writer offset.

4. The method as in claim 1 further comprising adjusting the manufacturing parameters based on the output from the neural network to optimize the magnetic core width.

5. The method as in claim 1 wherein the neural network comprises a multi-layer network of a plurality of perceptrons.

6. The method as in claim 1 wherein the neural network comprises a multi-layer model having an input layer at least one hidden layer and an output layer.

7. The method as in claim 1 wherein the neural network comprises a feed forward neural network.

8. The method as, in claim 1 wherein the neural network comprises a plurality of feed forward neural networks.

9. The method as in claim 1 wherein the neural network includes a perceptron.

10. The method as in claim 1 wherein the neural network includes a multilayer perceptron.

11. The method as in claim 1 wherein the neural network includes a feed forward multi-layer perceptron.

12. A non-transitory computer readable medium comprising instructions for:

collecting data regarding manufacturing parameters;

constructing a neural network;

analyzing the data using the neural network to 1oroduce an output from the neural network; and

using the output from the neural network to provide new manufacturing parameters for optimizing a magnetic core width of a write head.

13. The method as in claim 12 , wherein the data includes: a write pole flare point; a wrap around shield dimension; and a side gap.

14. The method as in claim 13 wherein the data includes a magnetic sensor stripe height and a reader/writer offset.

15. The method as in claim 12 wherein the neural network comprises a multi-layer network of a plurality of perceptrons.

16. The method as in claim 12 wherein the neural network comprises a multi-layer model having an input layer at least one hidden layer and an output layer.

17. The method as in claim 12 wherein the neural network comprises a feed forward neural network.

18. The method as in claim 12 wherein the neural network comprises a plurality of feed forward neural networks.

19. The method as in claim 12 wherein the neural network includes a perceptron.

20. The method as in claim 12 wherein the neural network includes a multilayer perceptron.

Assignments (3)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Dec 6, 2016
From: HGST NETHERLANDS B.V.
To: WESTERN DIGITAL TECHNOLOGIES, INC.
Reel/Frame 040826/0327 →
CHANGE OF NAME Recorded Oct 25, 2012
From: HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V.
To: HGST NETHERLANDS B.V.
Reel/Frame 029341/0777 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jan 17, 2012
From: PAGUIO, HERNAN J. S.
To: HITACHI GLOBAL STORAGE TECHNOLOGIES NETHERLANDS B.V.
Reel/Frame 027547/0263 →
Continuity (1)
Related Publication 20120303562A1 · Nov 29, 2012