Abstract: A magnetic head slider suspension assembly for loading a head slider having an air bearing surface onto the surface of a magnetic rotating disc is shown. The magnetic head slider suspension assembly includes an elongated slider arm adapted to be attached to an arm mounting support. The elongated slider arm includes a deflectable central arm section or load beam having a support end at one end thereof which is adapted to be operatively attached to an arm mounting support and a head/slider loading end located at the other end thereof. The central arm section is generally rectangular in shape and has a predetermined width at the support end and a width which can be equal to or less than the predetermined width at the head/slider loading end. The central arm section has at least one raised load rail extending substantially perpendicular therefrom and which extends in the same direction as that of a head/slider operatively attached to the head/slider loading end.

Abstract: A microminimonolithic magnetic head slider adapted for use with a magnetic head flying on an air cushion over a magnetic media for recording and reproducing tracks of information is shown. The slider includes an aerodynamic surface which has a pair of spaced, parallel load rails which are adapted to fly over the moving magnetic media. The load rails have an air bearing surface formed thereon, and each air bearing surface has a width which is greater than a track width of information on the magnetic media. Also, the aerodynamic surface has, located between the pair of spaced, parallel load rails, a wedged-shaped central rail having an apex which defines an air bearing surface having a width which is less than the width of the air bearing surface on the load rails. The slider includes a transverse slot which is spaced from and extends substantially perpendicular to the pair of spaced, parallel load rails and the central rail and a pair of spaced, vertically extending slots.

Abstract: A read-while-write magnetic head assembly adapted for use with a recording medium wherein the magnetic head assembly is formed of two transducing head sub-assemblies having a feedthrough shield interposed therebetween and wherein each transducing sub-assembly includes a transducer having a transducing element located on one side thereof and conductive leads extending from a different side thereof, a substrate formed of a material which is highly resistant to being abraded by the recording medium and wherein the substrate has a medium contacting surface and a support surface which extends substantially perpendicular therefrom and wherein the substrate has the transducer rigidly affixed to the support surface with the transducing element of the transducer positioned adjacent the substrate contacting surface, a spacer formed of a material which is highly resistant to being abraded by the recording medium and wherein the spacer has a medium contacting surface which is rigidly affixed in opposed, spaced relationsh

Abstract: A magnetic head assembly having a transverse guiding surface which is highly resistant to being abraded by a recording medium for reading and recording magnetically recorded information on the recording medium including a transducer having a transducing element on one end thereof and conductive leads extending from a different end thereof, a substrate formed of a mixture of Aluminum Oxide and Titanium Carbide ("Al.sub.2 O.sub.3 --TiC") having a medium contacting surface and a supporting surface extending substantially perpendicular therefrom wherein the substrate has the transducer rigidly affixed to the substrate supporting surface with the transducing element positioned adjacent the substrate contacting surface, a spacer formed of Al.sub.2 O.sub.

Abstract: A thin film magnetic head having a substrate, a magnetic head and a superstrate formed of materials which are highly resistive to being abraded by a magnetic media being moved thereacross is shown. The magnetic head includes a bottom pole piece having a front gap section and a rearwardly extending portion positioned at predetermined locations on the substrate. The bottom pole piece forms a bottom support for a coil having a plurality of coil windings. An insulating structure having a thin gap defining section and a thick coil windings enclosing portion is located on the bottom pole piece such that the thin gap defining portion establishes the thickness of a magnetic transducing gap and the thick coil windings enclosing portion encloses and surrounds that portion of the coil windings supported by the bottom pole piece.

Abstract: A thin film magnetic head having a substrate, magnetic head components and a superstrate formed of materials which are highly resistive to being abraded by a magnetic media being moved thereacross is shown. The magnetic head includes a magnetic bottom pole piece having a front gap section and a rearward extending portion. A lateral wall layer formed of a magnetic material and of predetermined thickness, has a forward wall section and a rearward wall section which define a coil windings receiving trench adjacent the front gap section of the bottom pole piece layer. The bottom pole piece forms a bottom enclosure for the coil windings receiving trench. A coil having coil windings is formed on the bottom pole piece and the coil windings thickness is less than the thickness of the lateral wall layer.

Abstract: A thin film magnetic head having a substrate, a magnetic head and a superstrate formed of materials which are highly resistive to being abraded by a magnetic media being moved thereacross is shown. The magnetic head includes a bottom pole piece having a front gap section and a rearwardly extending portion positioned at predetermined locations on the substrate. The bottom pole piece forms a bottom support for a coil having a plurality of coil windings. An insulating structure having a thin gap defining section and a thick coil windings enclosing portion is located on the bottom pole piece such that the thin gap defining portion establishes the thickness of a magnetic transducing gap and the thick coil windings enclosing portion encloses and surrounds that portion of the coil windings supported by the bottom pole piece.

Abstract: A microminimonolithic magnetic head slider adapted for use with a magnetic head flying on an air cushion over a magnetic media for recording and reproducing tracks of information is shown. The slider includes an aerodynamic surface which has a pair of spaced, parallel load rails which are adapted to fly over the moving magnetic media. The load rails have an air bearing surface formed thereon, and each air bearing surface has a width which is greater than a track width of information on the magnetic media. Also, the aerodynamic surface has, located between the pair of spaced, parallel load rails, a wedged-shaped central rail having an apex which defines an air bearing surface having a width which is less than the width of the air bearing surface on the load rails. The slider includes a transverse slot which is spaced from and extends substantially perpendicular to the pair of spaced, parallel load rails and the central rail and a pair of spaced, vertically extending slots.

Abstract: Apparatus for indexing and accurately registering a selected stabilized mask of a plurality of stabilized masks between a substrate and a source during vacuum deposition wherein the apparatus has a mask supporting frame including a mechanism for supporting at least two stabilized masks each having openings which define a pattern and wherein the at least two stabilized masks are supported in a planar spaced relationship relative to each other and have a preselected spacing between the centers thereof, guide and support rollers operatively coupled to the mask supporting frame for supporting the mask supporting frame for lateral movement along a predetermined path between a first position and a second position wherein the first position indexes one of said two of the stabilized masks between a substrate and a source at a working station and the other of the two stabilized masks at a different location along the predetermined path and wherein the second position indexes the other of the two stabilized masks at th

Abstract: A thin film transducer having a substrate, a first and second pole piece formed of a selected magnetic material and terminating in a gap, a coil positioned between the first and second pole pieces and a magnetically conductive layer formed of a material having selected chemical, magnetic and physical properties and having a known magnetic saturation flux density and being positioned contiguous at least one of the first pole piece and second pole piece and rearward of the edges forming the gap to conduct magnetic flux in parallel to the pole pieces and to increase and concentrate the magnetic flux density at the edges of the first and second pole piece defining the gap is shown.

Abstract: A stabilized mask assembly for direct deposition of a thin film pattern onto a substrate having a dimensionally stabilized mask supporting frame which includes an opening extending therethrough and defining a surface extending circumferentially around the opening, a relatively thin, substantially planar mask having a predetermined yield strength and selected geometrical shape and dimension wherein the mask is positioned adjacent the opening with the periphery of the mask circumferentially contiguous the circumferentially extending surface and wherein the mask has at least one aperture extending therethrough and arranged in a predetermined location defining a thin film pattern, and a securing device for rigidly affixing the periphery of the mask to the circumferentially extending surface with a substantially uniform tension applied to and in the plane of the mask and wherein the tension has a magnitude which establishes a stress on the mask during use which is less than the predetermined yield strength of the

Abstract: An electrical measuring system for measuring selected parameters of electrical signals derived from magnetic recording and having a frequency within a known frequency range wherein the system includes an input stage having an automatic amplifier for selectively amplifying the electrical signals to a preselected amplitude level, a first circuit which includes a digital peak detecting circuit for producing digital signals representing peak amplitude and the amplitude of the electrical signals sampled at closely spaced intervals and wherein the digital peak detecting circuit includes circuitry for sampling the preselected amplitude level electrical signals at a frequency which is less than the frequency of the electrical signals, a second circuit which includes a first phase-locked loop circuit, a frequency dividing circuit and a second phase-locked loop circuit for producing an output signal representing the frequency of a remnant signal in the electrical signals which is applied to the digital peak detecting c

Abstract: A method of manufacturing a transducing sub-assembly for a magnetic head assembly comprising the steps of affixing a transducer onto a substrate wherein the transducing element is located on one side thereof and leads extending from the transducing element are located on a different side thereof and wherein the substrate is formed of a material which is highly resistant to being abraded by a recording medium being transported thereacross and wherein the transducer is affixed to the support surface with the transducing element located adjacent the medium contacting surface and with the leads extending along the supporting surface away from the medium contacting surface; bonding a spacer to the substrate and transducer wherein the substrate and spacer are formed of a material which is highly resistant to being abraded by a recording medium and has a medium contacting surface of a preselected width and spaced sidewalls extending substantially perpendicular therefrom a distance equal to the length of the transduc

Abstract: A method of attaching electrical conductors to a thin film magnetic transducer having a transducing element and a plurality of substantially planar conductive leads formed into a predetermined pattern comprising the steps of mounting the thin film magnetic transducer on a substrate adjacent a medium contacting surface with the conductive leads thereof extending from the medium contacting surface, positioning an electrical circuit member having on one side thereof a plurality of planar connecting elements which have a relatively thin diffusible conductive metal coating contiguous the conductive leads, placing a quantity of curable epoxy bonding material adjacent the plurality of planar connecting elements of the thin film transducer wherein the epoxy bonding material is selected of a material having a curing temperature which is less than the thermal stress temperature of a thin film magnetic transducer wherein at least one of the electrical characteristics and the magnetic characteristics of the thin film mag

Abstract: Apparatus for indexing and accurately registering a selected one of a plurality of deposition masks in operative relationship to a substrate comprising carriage means for supporting a plurality of deposition masks in an aligned spaced relationship relative to each other wherein each of the deposition masks has a selected number of prealigned registration members located thereon in a predetermined pattern and which are adapted to co-act with reference registration members loaded thereagainst, gantry means for supporting a substrate at a deposition station above the surface of the deposition masks having the prealigned registration members located thereon, reference registration members which are located on the substrate or around the periphery of the gantry means and which are directed towards and adapted to be loaded against the prealigned registration members to position the gantry means and the substrate relative to the selected one of said plurality of deposition masks, indexing means for transporting the

Abstract: Apparatus for sensing deposition of a thin film layer of a material from a source onto a substrate having a carriage assembly including a predetermined number of apertures for selectively passing predetermined portions of a material from the source along each of a plurality of predetermined paths located in the proximity of the substrate under conditions correlated to that under which the material is deposited through a deposition path onto the substrate, inhibiting elements positioned relative to the carriage assembly for selectively inhibiting passage of predetermined portions of the material through a selected number of the predetermined number of the apertures, and a monitor for monitoring a selected parameter of the thin film material which is passed through other than the selected number of apertures of the carriage assembly wherein the monitor includes a plurality of detectors one of each of which is positioned along one of the plurality of predetermined paths and being adapted to sense a predetermined

Abstract: Apparatus for sensing deposition of a thin film layer of a material from a source onto a substrate having a carriage assembly including a predetermined number of apertures for selectively passing predetermined portions of a material from the source along each of a plurality of predetermined paths located in the proximity of the substrate under conditions correlated to that under which the material is deposited through a deposition path onto the substrate, inhibiting elements positioned relative to the carriage assembly for selectively inhibiting passage of predetermined portions of the material through a selected number of the predetermined number of the apertures, and a monitior for monitoring a selected parameter of the thin film material which is passed through other than the selected number of apertures of the carriage assembly wherein the monitor includes a plurality of detectors one of each of which is positioned along one of the plurality of predetermined paths and being adapted to sense a predetermine

Abstract: Apparatus for forming a thin film of a coating material on a selected surface of a substrate and having a rotatable head fixture for supporting the substrate which includes a platen housing having a hollowed-out central area and an opening extending from an upper surface thereof into the hollowed-out central area, a substrate support means formed in the platen housing for supporting a substrate above the opening in the platen housing; means defining a chamber which encloses the substrate supporting means, the opening and part of the platen housing surface and wherein the chamber defining means is positioned relative to the periphery of the substrate to form a controlled gap which communicates with the opening and hollowed-out area; rotating means for rotating the platen housing and substrate at a predetermined rate of rotation and means for applying a vacuum through the hollowed-out area and opening to the controlled gap to draw and remove excess accumulation of coating material from the edge of the substrate

Abstract: Apparatus for maintaining two magnetic transducers in operative relation with both sides of a rotatable flexible planar magnetic recording media is shown. The apparatus includes a carriage having a first transducer coupled to one end thereof through a differential torsion spring support means which is adapted to support the first transducer against one side of the media in a semi complaint relationship and a high degree of stiffness about two axes, one of which is radial with respect to the media and the other axis which is normal to the media, and in a fully compliant relationship with low flexure stiffness about a third axis which is circumferential with respect to the media. The apparatus includes a loading arm which is pivotally connected to the other end of the carriage and which is adapted to be movable toward and away from the other side of the media.

Abstract: A carriage assembly for positioning a selected mask from a plurality of masks between a substrate and a source wherein an elongated mask support means having an elongated mask supporting frame and including means for defining elements for guiding and supporting the elongated mask supporting frame, a plurality of apertures formed in the elongated mask supporting frame and which extends from the upper surface to the lower surface and wherein each aperture has a predetermined diameter and a preselected spacing between the centers thereof and which support a plurality of masks therein, a support roller having a bearing surface for engaging, guiding and dynamically supporting the elongated mask supporting frame through the guiding and supporting elements; a pair of central guide rollers each of which have an outer grooved recessed receiving surface for engaging, guiding and dynamically supporting the elongated mask supporting frame through the guiding and supporting elements and a loaded clamping roller having an