# US 8,786,975 B2 · Thin-femto magnetic head slider and method for producing the same > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,786,975 B2 - Document ID: US8786975B2 - Status: Granted - Kind: B2 - Application number: 13/104,830 - Filed: 2011-05-10 - Published: 2012-11-15 - Granted: 2014-07-22 - Earliest claimed: 2011-05-10 - Assignees: HGST Netherlands B.V. - Applicants: Tomomitsu Inoue; Hideo Yamakura; Takateru Seki - Inventors: Tomomitsu Inoue; Hideo Yamakura; Takateru Seki - Web page: https://patentgrep.com/patent/US8786975B2 ## CPC - G11B 5/3166: {Testing or indicating in relation thereto, e.g. before the fabrication is completed} - G11B 5/3173: {Batch fabrication, i.e. producing a plurality of head structures in one batch} - G11B 5/102: {Manufacture of housing} - G11B 5/607: {using thermal means} - Y10T 29/49032: Fabricating head structure or component thereof - G11B: INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER (recording measured values in a way that does not require playback through a transducer G01D9/00; recording or playback apparatus using mechanically marked tape, e.g. punched paper tape, or using unit records, e.g. punched or magnetically marked cards G06K; transferring data from one type of record carrier to another G06K1/18; circuits for coupling output of reproducer to radio receiver H04B1/20; gramophone pick-ups or like acoustic electromechanical transducers or circuits therefor H04R) - Y10T: TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION ## Abstract In one embodiment, a magnetic head slider includes a substrate, at least two elements (read element, write element, and/or heater element) positioned adjacent to the substrate, a resistance detection element positioned near the two elements, a pair of conductive terminals in an accessible position and coupled to each of the two elements, a protective film surrounding the two elements and the resistance detection element, a first and a second thin conductive wire extending from the resistance detection element and terminating at an edge of the protective film, a third thin conductive wire extending from one of the pair of conductive terminals for a first of the two elements and terminating at an edge of the protective film, and a fourth thin conductive wire extending from one of the pair of conductive terminals for a second of the two elements and terminating at an edge of the protective film. ## Claims ### Claim 1 A magnetic head slider, comprising: a substrate; at least two elements positioned adjacent to the substrate, the elements being selected from a group consisting of: a read element, a write element, and a heater element; a resistance detection element positioned near the at least two elements; a pair of conductive terminals for each of the at least two elements, each pair of conductive terminals being in an accessible position and being coupled to the associated element; a first thin conductive wire electrically coupled to the resistance detection element and terminating at a first edge of the slider; a second thin conductive wire electrically coupled to the resistance detection element and terminating at a second edge of the slider; a third thin conductive wire extending from one of the conductive terminals for a first of the at least two elements and terminating at the first edge of the slider; and a fourth thin conductive wire extending from one of the conductive terminals for a second of the at least two elements and terminating at the second edge of the slider. ### Claim 2 (depends on 1) The magnetic head slider as recited in claim 1, further comprising a pair of conductive terminals for the resistance detection element, wherein the pair of conductive terminals are coupled to the resistance detection element. ### Claim 3 (depends on 2) The magnetic head slider as recited in claim 2, wherein a portion of the first thin conductive wire extends from a first of the pair of conductive terminals for the resistance detection element and terminates at the first edge of the slider, and wherein a portion of the second thin conductive wire extends from a second of the pair of conductive terminals for the resistance detection element and terminates at the second edge of the slider. ### Claim 4 (depends on 1) The magnetic head slider as recited in claim 1, further comprising a protective film above the at least two elements and the resistance detection element. ### Claim 5 (depends on 1) The magnetic head slider as recited in claim 1, wherein the substrate comprises aluminum titanium carbide (AlTiC). ### Claim 6 (depends on 1) The magnetic head slider as recited in claim 1, wherein the pair of conductive terminals for the at least two elements comprise at least one of: gold (Au), silver (Ag), copper (Cu), nickel-iron (NiFe), and alloys thereof. ### Claim 7 (depends on 1) The magnetic head slider as recited in claim 1, wherein the first, second, third, and fourth thin conductive wires comprise at least one of: gold (Au), silver (Ag), copper (Cu), nickel-iron (NiFe), and alloys thereof. ### Claim 8 (depends on 1) A magnetic data storage system, comprising: a magnetic medium; at least one magnetic head slider as recited in claim 1, each magnetic head slider comprising a magnetic head for reading from/writing to the magnetic medium; a drive mechanism for passing the magnetic medium over the magnetic head; and a controller electrically coupled to the magnetic head for controlling operation of the magnetic head. ### Claim 9 A magnetic head slider, comprising: a substrate; at least two elements positioned adjacent to the substrate, the elements being selected from a group consisting of: a read element, a write element, and a heater element; a resistance detection element positioned above the substrate; a pair of conductive terminals for each of the at least two elements, each pair of conductive terminals being coupled to the associated element; a first conductive wire electrically coupled to the resistance detection element and terminating at a first edge of the slider; a second conductive wire electrically coupled to the resistance detection element and terminating at a second edge of the slider; a third conductive wire extending from one of the conductive terminals for a first of the at least two elements and terminating at the first edge of the slider; and a fourth conductive wire extending from one of the conductive terminals for a second of the at least two elements and terminating at the second edge of the slider. ### Claim 10 (depends on 9) The magnetic head slider as recited in claim 9, further comprising a pair of conductive terminals for the resistance detection element, wherein the pair of conductive terminals are coupled to the resistance detection element. ### Claim 11 (depends on 10) The magnetic head slider as recited in claim 10, wherein a portion of the first conductive wire extends from a first of the pair of conductive terminals for the resistance detection element and terminates at the first edge of the slider, and wherein a portion of the second conductive wire extends from a second of the pair of conductive terminals for the resistance detection element and terminates at the second edge of the slider. ### Claim 12 (depends on 9) The magnetic head slider as recited in claim 9, further comprising a protective film above the at least two elements and the resistance detection element. ### Claim 13 (depends on 9) The magnetic head slider as recited in claim 9, wherein the substrate comprises aluminum titanium carbide (AlTiC). ### Claim 14 (depends on 9) The magnetic head slider as recited in claim 9, wherein the pair of conductive terminals for the at least two elements comprise at least one of: gold (Au), silver (Ag), copper (Cu), nickel-iron (NiFe), and alloys thereof. ### Claim 15 (depends on 9) The magnetic head slider as recited in claim 9, wherein the first, second, third, and fourth conductive wires comprise at least one of: gold (Au), silver (Ag), copper (Cu), nickel-iron (NiFe), and alloys thereof. ### Claim 16 (depends on 9) A magnetic data storage system, comprising: a magnetic medium; at least one magnetic head slider as recited in claim 9, each magnetic head slider comprising a magnetic head for reading from/writing to the magnetic medium; a drive mechanism for passing the magnetic medium over the magnetic head; and a controller electrically coupled to the magnetic head for controlling operation of the magnetic head.