Abstract: A magnetic recording head with an overall planar design and tight dimensional control of throat height and notch width is achieved below the gap. Writer poles include very high magnetic moment material on both sides of the writer gap. Additionally the pole tips are shaped to provide high field with good spatial gradient for optimal writing conditions, thereby extending the capability of longitudinal recording heads for high density and high frequency applications.

Abstract: A magnetic writer having an air bearing surface for confronting a surface of a rotating disc is disclosed. The magnetic writer includes a bottom pole and a top pole. The top pole includes a first top pole portion and a second top pole portion connected by a top pole extension. The top pole extension, which preferably has a uniform width at the air bearing surface, orients a magnetization of the first top pole portion substantially parallel to an air bearing surface of the magnetic writer. The bottom pole includes a base pole and a notch pole. The base pole is recessed from the air bearing surface to prevent or reduce fringe erasure fields. The notch pole, which abuts the base pole and extends from the air bearing surface to at least a magnetic throat height of the magnetic writer, has a magnetization oriented perpendicular to the air bearing surface.

Abstract: A process of forming a two-piece pole for an inductive write head involves first forming a first pole piece having a width between opposite side surfaces defining a gap width of a transducing gap at an air bearing surface of the head. The process next involves forming a second pole piece having a first region remote from the air bearing surface and a second region extending from the first region toward the air bearing surface. The first region is wider than the width of the first pole piece. The second pole piece is formed so that at least a portion of the second region is contiguous a portion of the first pole piece and so that no sharp external corners exist between the first pole tip piece and the second pole piece within a pole tip region of the head.

Abstract: A read/write head for use in a disc drive storage system includes perpendicular writing and reading elements. The perpendicular writing element includes a main pole, a return pole, a write gap, and a conductive coil. The return pole is located downstream of the main pole relative to a rotating disc and is connected to the main pole at a back gap. The write gap and the conductive coil are positioned between the main and return poles. The conductive coil is adapted to induce magnetic flux in the main and return poles. The reading element can be positioned upstream or downstream of the perpendicular writing element and includes top and bottom shields and a read sensor positioned therebetween.

Abstract: A process of forming a two-piece pole for an inductive write head involves first forming a first pole piece having a width between opposite side surfaces defining a gap width of a transducing gap at an air bearing surface of the head. The process next involves forming a second pole piece having a first region remote from the air bearing surface and a second region extending from the first region toward the air bearing surface. The first region is wider than the width of the first pole piece. The second pole piece is formed so that at least a portion of the second region is contiguous a portion of the first pole piece and so that no sharp external corners exist between the first pole tip piece and the second pole piece within a pole tip region of the head.

Abstract: A two-piece pole for an inductive write head has a first pole piece in the tip region contiguous the gap and confronting the other pole across the gap. The first pole piece has a width defining the gap width of the write head at the air bearing surface. A second pole piece is connected to the first pole piece and extends to the back gap. At least a portion of the second pole piece is connected to the first pole piece and has a width larger than the width of the first pole piece. The second pole piece means has surfaces within the pole tip region that intersect at external corners facing the gap, at least two surfaces of each of these external corners being joined at an obtuse angle so that none of said external corner is a sharp external corner, thereby minimizing fringe fields. In one form, a pole cap between the first and second pole pieces has a trapezoidal configuration forming the obtuse angles.

Abstract: A thin film head and a method for fabricating the same comprises depositing a first non-magnetic seedlayer on a substrate, forming a bottom portion of a magnetic core on the first non-magnetic seedlayer, depositing a second non-magnetic seedlayer and forming a top portion of the magnetic core on the second non-magnetic seedlayer. A gap comprised of non-magnetic material is formed between the top and bottom portions of the magnetic core. The stability of the thin film head while in a relaxed state and its read performance are significantly improved.

Abstract: A thin film inductive head comprising a bottom pole, an insulation region fabricated on the bottom pole, a cavity layer formed on the insulation region, the cavity layer containing an aperture, and a top pole deposited on the cavity layer so that the top pole lies substantially in the aperture of the cavity layer and has a height at least partially defined by the depth of the aperture.

Abstract: A thin film head (12) and a method for fabricating the same comprises depositing a first nickel seed layer (37) on a substrate (25), forming a bottom portion (16) of a magnetic core (13) on the first nickel seed layer (37), depositing a second nickel layer (39) and forming a top portion (14) of the magnetic core (13) on the second nickel seed layer (39). The stability of the thin film head (12) while in a relaxed state and its read performance are significantly improved.