Abstract: Various exemplary embodiments of the present invention relate to a method for controlling magnetic leakage flux in a sputtering target containing magnetic and non-magnetic elements. The method relates to selecting a particle size of at least one non-magnetic phase in a microstructure, where the particle size of the non-magnetic phase is greater than or equal to one micron. The non-magnetic phase is combined with at least one magnetic phase in the microstructure, where the magnetic phase is greater than or equal to 10 atomic percent and is greater than one micron in size. The selected particle size of the non-magnetic phase decreases the diffusion between the magnetic and non-magnetic phases in the microstructure, and may increase the pass through flux (PTF) of the sputtering target. The magnetic phase and non-magnetic phases may be combined in the microstructure by hot isostatic pressing, sintering, spark plasma sintering, or vacuum hot pressing.

Abstract: A sputter target is provided with a first elemental phase of a first material, the first material being either cobalt or tungsten, a first intermetallic phase including the first material and a second material, the second material being either tungsten or cobalt and different from the first material, the first material in a greater atomic percentage than the second material, and a second intermetallic phase including the second material and the first material, the second material in a greater atomic percentage than the first material. The sputter target includes 20-80 at. % cobalt, and has a density greater than 99% of a theoretical maximum density thereof. The sputter target is fabricated by selecting a cobalt powder and a tungsten powder having the same particle size distribution, blending the cobalt powder and the tungsten powder to form a blended powder, canning the blended powder, hot pressing the blended powder to form a solid, and machining the solid to form a sputter target.

Abstract: The present invention relates to an apparatus for a magnetic field detector holding assembly for manually-operated or automated pass-through flux (PTF) measurement stands for measuring sputter targets. The magnetic field detector holding assembly has an insert with a longitudinal opening, where the opening of the insert allows a magnetic field detector to be located. At least one fastener passes through at least one opening in the magnetic field detector holding apparatus, where the fastener is adapted to be adjusted to mechanically couple with the insert so as to hold the insert at a predetermined location within the magnetic field holding assembly. The insert prevents the magnetic field detector from being damaged by over-tightening of the fasteners, and also prevents scratching of the surface of a sputter target to be tested. The magnetic field detector holding assembly can be used by manually operated mechanical PTF stands or automated PTF stands.

Abstract: The various embodiments of the present invention generally relate to the deposition of a seedlayer for a magnetic recording medium used for perpendicular magnetic recording (PMR) applications, where the seedlayer provides for grain size refinement and reduced lattice mis-fit for a subsequently deposited underlayer or granular magnetic layer, and where the seedlayer is deposited using a nickel (Ni) alloy based sputter target. The nickel (Ni) alloy can be binary (Ni—X; Ni—Y) or ternary (Ni—X—Y). In addition, the binary (Ni—X; Ni—Y) or ternary (Ni—X—Y) nickel (Ni) based alloys can be further alloyed with metal oxides, thus forming seedlayer thin films with a granular microstructure containing metallic grains, surrounded by an oxygen rich grain boundary. The nickel-based alloys (with or without metal oxides) of the various exemplary embodiments can be made by powder metallurgical technique or by melt-casting techniques, with or without thermo-mechanical working.

Abstract: A sputter target comprises a plurality of materials. The plurality of materials includes at least a first material and a second material. The first material is comprised of cobalt (Co), chromium (Cr), ruthenium (Ru), nickel (Ni), or iron (Fe). The second material is comprised of carbon (C), a carbon (C)-containing material, a carbide, a nitrogen (N)-containing material, a nitride, a silicon (Si)-containing material, a silicide, an oxygen (O)-containing material, an oxide, boron (B), a boron (B)-containing material or a boride. The second material constitutes a phase where the phase of the second material has an average size between greater than 0 micron and 50 microns. According to one aspect, the first material comprises at least 15 atomic percent or greater. Methods of fabricating sputter targets by blending a plurality of materials are also disclosed.

Abstract: A sputter target comprises a plurality of materials. The plurality of materials includes at least a first material and a second material. The first material is comprised of cobalt (Co), chromium (Cr), ruthenium (Ru), nickel (Ni), or iron (Fe). The second material is comprised of carbon (C), a carbide, a nitrogen (N)-containing material, a nitride, a silicide, an oxygen (O)-containing material, an oxide, boron (B), or a boride. The second material has an average size of between 0.01 microns and 50 microns or is not more than 50 microns in size. In one embodiment, the first material comprises at least 15 atomic percent or greater.

Abstract: A monolithic self-constrained green body tape for use in low temperature ceramic co-firing is provided. The tape contains at least two layers: one low temperature ceramic layer containing particles of a glass, a ceramic, and an organic binder, and a self-constraining layer containing a refractory ceramic and a wetting agent for the glass in the first layer. When the tape is fired at a sintering temperature of the low temperature ceramic layer, densification occurs in the z (thickness) direction, but essentially no shrinkage (less than about 1%) occurs in the x-y planes. A method for forming a multilayer green body tape using simultaneous wet on wet ceramic slurry deposition is also provided. A dense, monolithic, low temperature, co-fired, self-constrained, multicomponent structure is also provided. The structure contains at least two multilayer ceramic substrates having electronic circuit components mounted thereon or therein.

Abstract: A monolithic self-constrained green body tape for use in low temperature ceramic co-firing is provided. The tape contains at least two layers: one low temperature ceramic layer containing particles of a glass, a ceramic, and an organic binder, and a self-constraining layer containing a refractory ceramic and a wetting agent for the glass in the first layer. When the tape is fired at a sintering temperature of the low temperature ceramic layer, densification occurs in the z (thickness) direction, but essentially no shrinkage (less than about 1%) occurs in the x-y planes. A method for forming a multilayer green body tape using simultaneous wet on wet ceramic slurry deposition is also provided. A dense, monolithic, low temperature, co-fired, self-constrained, multicomponent structure is also provided. The structure contains at least two multilayer ceramic substrates having electronic circuit components mounted thereon or therein.

Abstract: A monolithic self-constrained green body tape for use in low temperature ceramic co-firing is provided. The tape contains at least two layers: one low temperature ceramic layer containing particles of a glass, a ceramic, and an organic binder, and a self-constraining layer containing a refractory ceramic and a wetting agent for the glass in the first layer. When the tape is fired at a sintering temperature of the low temperature ceramic layer, densification occurs in the z (thickness) direction, but essentially no shrinkage (less than about 1%) occurs in the x-y planes. A method for forming a multilayer green body tape using simultaneous wet on wet ceramic slurry deposition is also provided. A dense, monolithic, low temperature, co-fired, self-constrained, multicomponent structure is also provided. The structure contains at least two multilayer ceramic substrates having electronic circuit components mounted thereon or therein.

Abstract: A monolithic self-constrained green body tape for use in low temperature ceramic co-firing is provided. The tape contains at least two layers: one low temperature ceramic layer containing particles of a glass, a ceramic, and an organic binder, and a self-constraining layer containing a refractory ceramic and a wetting agent for the glass in the first layer. When the tape is fired at a sintering temperature of the low temperature ceramic layer, densification occurs in the z (thickness) direction, but essentially no shrinkage (less than about 1%) occurs in the x-y planes. A method for forming a multilayer green body tape using simultaneous wet on wet ceramic slurry deposition is also provided. A dense, monolithic, low temperature, co-fired, self-constrained, multicomponent structure is also provided. The structure contains at least two multilayer ceramic substrates having electronic circuit components mounted thereon or therein.

Abstract: Coating compositions of silver flake suspended in predominantly aqueous vehicle is disclosed for laying down a coating of electrically conductive metal on resistive or dielectric substrates useful in the electronics industry. The coating compositions provide an ideal combination of high silver loading and low viscosity for spray painting desired thickness coatings at high speed in a single pass. The novel compositions include the three basic components: silver flake, water soluble polymer binder, water. Up to about 10 wt % of a substantially completely water soluble, organic co-solvent can be an optional, additional ingredient. The coating compositions have good green strength after drying and may be used to apply an electrically conductive base to enable electroplating plastic or elastomer parts. Optional sintering adhesives can be added to allow high temperature, permanent bonding of the silver to a ceramic substrate. The compositions can include surfactants, defoamers and antisettling agents.

Abstract: Coating compositions of silver flake suspended in predominantly aqueous vehicle is disclosed for laying down a coating of electrically conductive metal on resistive or dielectric substrates useful in the electronics industry. The coating compositions provide an ideal combination of high silver loading and low viscosity for spray painting desired thickness coatings at high speed in a single pass. The novel compositions include silver flake, water soluble polymer binder, water and a substantially completely water soluble, organic co-solvent. The coating compositions have good green strength after drying and may be used to apply an electrically conductive base to enable electroplating plastic or elastomer parts. Optional sintering adhesives can be added to allow high temperature, permanent bonding of the silver to a ceramic substrate. The coating compositions have excellent storage stability such that settled solids can be redispersed readily with brief and/or mild agitation.

Abstract: A non-oxidizing cooper thick film conductor comprising copper, said copper comprising metallic copper powder and copper oxide powder and applied to said copper are a manganese boron compound, an inorganic phosphate-containing acid and an organic vehicle, wherein the manganese boron compound ranges from 0.5 to 1.5 weight %, based on the total conductor weight and wherein the amount of phosphate is 50 to 300 ppm based on the weight of the metallic copper powder.

Abstract: A nitrogen fireable resistor composition comprising:a. a conductive phase containing (1) a perovskite of the form A'.sub.1-x A".sub.x B'.sub.1-y B".sub.y O.sub.3, wherein when A' is Sr; A" is one or more of Ba, La, Y, Ca and Na, and when A' is Ba, A" is one or more of Sr, La, Y, Ca and Na, B' is Ru and B" is one or more of Ti, Cd, Zr, V and Co, O<x<0.2; 0<y<0.2, (2) 5 to 30 weight % of a metallic copper powder, nickel metallic powder or cupric oxide, relative to the total conductive phase weight, andb. a glass phase selected from the group consisting of (a) 40 to 60 mole % SrO or BaO, 25 to 45 mole % B.sub.2 O.sub.3, 0 to 6 mole % ZnO, 0.25 to 2.0 mole % TiO.sub.2, 2 to 14 mole % SiO.sub.2 and (b) 40 to 60 mole % SrO or BaO, 25 to 45 mole % B.sub.2 O.sub.3, 5 to 20 mole % Al.sub.2 O.sub.3, 0.25 to 2.0 mole % TiO.sub.2.