Manufacturing method of magneto-resistance effect element
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United States of America Patent
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Jun 18, 2013
Grant Date -
Oct 20, 2011
app pub date -
Apr 14, 2011
filing date -
Apr 16, 2010
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Abstract
The present invention provides a manufacturing method of a magneto-resistance effect element, in which the step coverage of a formed film can be enlarged and also the film can be deposited in a low temperature range. In an embodiment of the present invention, an insulating protective layer is formed on a multilayered structure by a plasma CVD apparatus in which a plasma source and a film deposition chamber are separated from each other by a partition wall plate. According to the present method, it is possible to deposit the protective layer without inviting the degradation of a magnetic characteristic and also to perform low temperature film deposition even at a temperature lower than 150° C. Hence, it is possible to deposit the protective layer while leaving resist and also to reduce the number of steps in the manufacturing of the magneto-resistance effect element having a multilayered structure.
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