Patent ID: 8551578
Filing Date: 2013-10-08
Classification: B82Y,G11B,H01F

Abstract:
1. A method for patterning a magnetic thin film on each substrate of a plurality of substrates, comprising: disposing a pattern over a magnetic thin film on each of a plurality of substrates, the pattern having selective regions permitting energized ions to penetrate therethrough and to impinge upon portions of the magnetic thin film adjacent the selective regions of each substrate of the plurality of substrates; positioning the plurality of substrates having the pattern thereover within a chamber; sequentially injecting helium and a boron-containing gas into the chamber, wherein the helium and the boron-containing gas are sequentially ionized into plasma to implant energized helium and boron ions into the portions of the magnetic thin film adjacent the selective regions of the pattern disposed over each substrate of the plurality of substrates, and wherein the energized helium ions and the energized boron ions are implanted at the same bias voltage and the helium ions are implanted within the magnetic thin film to a greater depth than the boron ions; and subjecting the portions of the magnetic thin film adjacent the selective regions of the pattern disposed over each substrate of the plurality of substrates to thermal excitation after implanting the energized helium ions and the energized boron ions; wherein implanting the energized helium ions and the energized boron ions renders the portions of the magnetic thin film adjacent the selective regions on each substrate of the plurality of substrates to exhibit a magnetic property different than selective other portions of the magnetic thin film on each substrate of the plurality of substrates.