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| Number | Title | Issue Date |
| 8230582 | Methods of making magnetic write heads with use of a resist channel shrinking solution having corrosion inhibitors One preferred method for use in making a device structure with use of the resist channel shrinking solution includes the steps of forming a first pedestal portion within a channel of a patterned resist; applying a resist channel shrinking solution comprising a resis... | 07/31/2012 |
| 7716813 | Method for fabricating magnetic write pole for a magnetic head using an E-beam resist mask A method is disclosed for independently controlling track width and bevel angle of a write pole tip of a magnetic recording head. The method includes establishing the track width in the pole tip layer material utilizing E-beam lithography. A portion of this pole tip... | 05/18/2010 |
| 7675709 | Magnetic write head having a stair notched, steep shouldered pole and a write gap bump A magnetic write head structure that maximizes write field strength while minimizing stray fields. The write pole structure maximizes write field strength by minimizing saturation of the magnetic pole tips, and minimizes stray field writing by preventing magnetic fi... | 03/09/2010 |
| 7652855 | Magnetic sensor with extended free layer and overlaid leads A lead overlay design of a magnetic sensor is described with sensor and free layer dimensions such that the free layer is stabilized by the large demagnetization field due to the shape anisotropy. In one embodiment the giant magnetoresistive (GMR) effect under the l... | 01/26/2010 |
| 7612964 | Magnetic write head having a self aligned, steep shoulder pole structure and method of manufacture thereof A magnetic write head and method of manufacture thereof that has a first pole structure having a notched structure configured with a steep shoulder portion and a narrow vertical notch portion extending from the top of the steep shoulder portion. The write head also ... | 11/03/2009 |
| 7593186 | P1 write pole with shoulder formation A magnetic disk drive head is disclosed including a write head, which includes a P1 layer having a pedestal portion, a gap layer formed on the P1 layer, and a P2 layer formed on the gap layer. The P1 layer includes a shoulder formation ha... | 09/22/2009 |
| 7554764 | Lift-off method for forming write pole of a magnetic write head and write pole formed thereby A lift-off method for forming write pole of a magnetic write head and write pole formed thereby is disclosed. A write pole including a hard mask on a top portion of the write pole is formed. A layer of material for reinforcing sidewall fencing of the write pole is d... | 06/30/2009 |
| 7549213 | Method for independent trackwidth and wall angle control and hexagonal write head A method for independently controlling track width and bevel angle of a write pole tip having a P3 pole tip for perpendicular recording. The method includes establishing the track width in a portion of the P3 layer material. A portion of this portion h... | 06/23/2009 |
| 7551397 | Magnetic write head having a first magnetic pole with a self aligned stepped notch A magnetic write head and method of manufacture thereof that has a first pole structure having a step notched first pole structure. The step notched structure includes a bottom notched portion that is wider than the second notched portion formed thereover. The upper... | 06/23/2009 |
| 7536774 | Method and apparatus for integrating a stair notch and a gap bump at a pole tip in a write head A method and apparatus for integrating a stair notch and a gap bump at a pole tip in a write head is disclosed. A protective plated layer is formed over the bump to prevent the bump form being damaged during formation of the notch at the pole tip. The flux from the ... | 05/26/2009 |
| 7395595 | Method for manufacturing P3 layer of a perpendicular magnetic write head A method for forming a P3 layer with NiFe and alumina mask using resist shrink process for use in perpendicular magnetic write heads. The method includes forming a laminated layer, forming an alumina layer on top of the laminated layer, depositing a conductiv... | 07/08/2008 |
| 7092206 | Magnetic head with magnetic layers of differing widths and third pole with reduced thickness A magnetic head includes a magnetic write structure having a first magnetic layer having a first pole, a second magnetic layer having a second pole spaced apart from the first pole, and a third magnetic layer having a third pole contacting the second pole. The third... | 08/15/2006 |
| 7029376 | Process of fabricating write pole in magnetic recording head using rhodium CMP stop layer In the formation of the top magnetic write pole in a thin film magnetic recording head, a CMP stop layer comprising rhodium is deposited over the Al2O3 layer that overlies the top magnetic pole. A mixture of silicon dioxide, ammonium persulfate... | 04/18/2006 |
| 7008550 | Method for forming a read transducer by ion milling and chemical mechanical polishing to eliminate nonuniformity near the MR sensor A method for forming a read transducer by ion milling and chemical mechanical polishing to eliminate nonuniformity near the MR sensor is disclosed. The resist mask is eliminated in the read transducer formation process so that the thickness of the layers near the re... | 03/07/2006 |
