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公开(公告)号：FI65492C
公开(公告)日：1984-05-10
申请号：FI134474
申请日：1974-05-02
Applicant: IBM
Inventor： TYNAN EUGENE EDWARD , GUTFELD ROBERT J VON
Abstract: A light detector consisting of a thin film of metallic (or conducting) material having an induced anisotropy in conjunction with means for establishing a temperature gradient in the film in a direction normal to the plane of the film is disclosed. When thin films of molybdenum and tungsten are excited by a pulsed laser light at normal incidence to the film, transverse thermoelectric voltages are generated. Output voltages across a 50 ohm load of 10 millivolts have been observed for an incident laser pulse of approximately 1 KW. Wave lengths in the range of 0.46-1.06 mu m and pulse widths of approximately 3 to 300 nanoseconds produce output voltages. A correlation between intrinsic film stress and output voltage indicates that stress (one of induced anisotropy) in the metal film introduced during deposition or externally induced anisotropy such as can be produced by a magnetic field in magnetic materials gives rise to a nonscalar absolute thermoelectric power even though the metal films are usually considered to be isotropic in their transport properties. The output from the detector, in terms of polarity, may be reversed by reversing the direction of light incidence. Also, the direction and magnitude of the output may be controlled by adjusting the position of the metallic film relative to a pair of contacts disposed in sliding relationship with the metallic film. While not necessary to the practice of the present invention, an electrically insulating substrate is preferably used to cause a better temperature gradient normal to the plane of the film. In general, the response time of the films is dependent on the laser pulse width.
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公开(公告)号：DK140679B
公开(公告)日：1979-10-22
申请号：DK244274
申请日：1974-05-03
Applicant: IBM
Inventor： TYNAN EUGENE EDWARD , GUTFELD ROBERT J VON
Abstract: A light detector consisting of a thin film of metallic (or conducting) material having an induced anisotropy in conjunction with means for establishing a temperature gradient in the film in a direction normal to the plane of the film is disclosed. When thin films of molybdenum and tungsten are excited by a pulsed laser light at normal incidence to the film, transverse thermoelectric voltages are generated. Output voltages across a 50 ohm load of 10 millivolts have been observed for an incident laser pulse of approximately 1 KW. Wave lengths in the range of 0.46-1.06 mu m and pulse widths of approximately 3 to 300 nanoseconds produce output voltages. A correlation between intrinsic film stress and output voltage indicates that stress (one of induced anisotropy) in the metal film introduced during deposition or externally induced anisotropy such as can be produced by a magnetic field in magnetic materials gives rise to a nonscalar absolute thermoelectric power even though the metal films are usually considered to be isotropic in their transport properties. The output from the detector, in terms of polarity, may be reversed by reversing the direction of light incidence. Also, the direction and magnitude of the output may be controlled by adjusting the position of the metallic film relative to a pair of contacts disposed in sliding relationship with the metallic film. While not necessary to the practice of the present invention, an electrically insulating substrate is preferably used to cause a better temperature gradient normal to the plane of the film. In general, the response time of the films is dependent on the laser pulse width.
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公开(公告)号：IT7926086D0
公开(公告)日：1979-09-28
申请号：IT2608679
申请日：1979-09-28
Applicant: IBM
Inventor： CHAUDHARI PRAVEEN , KIESSLING JOHN BRADFORD , PERLMAN DAVID JACOB , TYNAN EUGENE EDWARD , GUTFELD ROBERT JACOB VON
Abstract: 1. A method for bonding a metallic wire (13) to a microcircuit conductor (11), characterized in that it includes the steps of : a. applying said wire to the conductor, b. maintaining said wire in close contact with said conductor, c. applying a focussed energy beam (14) directed towards a point at least tangentially in contact with said wire, and forming a hole in said conductor, and d. applying additional energy to portions of said wire adjacent to said point for melting the wire metal so that the metal flows into said hole (15) to form an electrical contact between the wire and the conductor.
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公开(公告)号：AU6859774A
公开(公告)日：1975-11-06
申请号：AU6859774
申请日：1974-05-03
Applicant: IBM
Inventor： GUTFELD ROBERT J VON , TYNAN EUGENE EDWARD
Abstract: A light detector consisting of a thin film of metallic (or conducting) material having an induced anisotropy in conjunction with means for establishing a temperature gradient in the film in a direction normal to the plane of the film is disclosed. When thin films of molybdenum and tungsten are excited by a pulsed laser light at normal incidence to the film, transverse thermoelectric voltages are generated. Output voltages across a 50 ohm load of 10 millivolts have been observed for an incident laser pulse of approximately 1 KW. Wave lengths in the range of 0.46-1.06 mu m and pulse widths of approximately 3 to 300 nanoseconds produce output voltages. A correlation between intrinsic film stress and output voltage indicates that stress (one of induced anisotropy) in the metal film introduced during deposition or externally induced anisotropy such as can be produced by a magnetic field in magnetic materials gives rise to a nonscalar absolute thermoelectric power even though the metal films are usually considered to be isotropic in their transport properties. The output from the detector, in terms of polarity, may be reversed by reversing the direction of light incidence. Also, the direction and magnitude of the output may be controlled by adjusting the position of the metallic film relative to a pair of contacts disposed in sliding relationship with the metallic film. While not necessary to the practice of the present invention, an electrically insulating substrate is preferably used to cause a better temperature gradient normal to the plane of the film. In general, the response time of the films is dependent on the laser pulse width.
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Patent Agency Ranking
公开(公告)号：DE2417004A1
公开(公告)日：1974-11-14
申请号：DE2417004
申请日：1974-04-08
Applicant: IBM
Inventor： TYNAN EUGENE EDWARD , GUTFELD ROBERT J VON
Abstract: A light detector consisting of a thin film of metallic (or conducting) material having an induced anisotropy in conjunction with means for establishing a temperature gradient in the film in a direction normal to the plane of the film is disclosed. When thin films of molybdenum and tungsten are excited by a pulsed laser light at normal incidence to the film, transverse thermoelectric voltages are generated. Output voltages across a 50 ohm load of 10 millivolts have been observed for an incident laser pulse of approximately 1 KW. Wave lengths in the range of 0.46-1.06 mu m and pulse widths of approximately 3 to 300 nanoseconds produce output voltages. A correlation between intrinsic film stress and output voltage indicates that stress (one of induced anisotropy) in the metal film introduced during deposition or externally induced anisotropy such as can be produced by a magnetic field in magnetic materials gives rise to a nonscalar absolute thermoelectric power even though the metal films are usually considered to be isotropic in their transport properties. The output from the detector, in terms of polarity, may be reversed by reversing the direction of light incidence. Also, the direction and magnitude of the output may be controlled by adjusting the position of the metallic film relative to a pair of contacts disposed in sliding relationship with the metallic film. While not necessary to the practice of the present invention, an electrically insulating substrate is preferably used to cause a better temperature gradient normal to the plane of the film. In general, the response time of the films is dependent on the laser pulse width.
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公开(公告)号：NO141328C
公开(公告)日：1980-02-13
申请号：NO741564
申请日：1974-04-30
Applicant: IBM
Inventor： TYNAN EUGENE EDWARD , GUTFELD ROBERT J VON
Abstract: A light detector consisting of a thin film of metallic (or conducting) material having an induced anisotropy in conjunction with means for establishing a temperature gradient in the film in a direction normal to the plane of the film is disclosed. When thin films of molybdenum and tungsten are excited by a pulsed laser light at normal incidence to the film, transverse thermoelectric voltages are generated. Output voltages across a 50 ohm load of 10 millivolts have been observed for an incident laser pulse of approximately 1 KW. Wave lengths in the range of 0.46-1.06 mu m and pulse widths of approximately 3 to 300 nanoseconds produce output voltages. A correlation between intrinsic film stress and output voltage indicates that stress (one of induced anisotropy) in the metal film introduced during deposition or externally induced anisotropy such as can be produced by a magnetic field in magnetic materials gives rise to a nonscalar absolute thermoelectric power even though the metal films are usually considered to be isotropic in their transport properties. The output from the detector, in terms of polarity, may be reversed by reversing the direction of light incidence. Also, the direction and magnitude of the output may be controlled by adjusting the position of the metallic film relative to a pair of contacts disposed in sliding relationship with the metallic film. While not necessary to the practice of the present invention, an electrically insulating substrate is preferably used to cause a better temperature gradient normal to the plane of the film. In general, the response time of the films is dependent on the laser pulse width.
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公开(公告)号：DE2223935A1
公开(公告)日：1973-01-18
申请号：DE2223935
申请日：1972-05-17
Applicant: IBM
Inventor： WELBER BENJAMIN , TYNAN EUGENE EDWARD
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公开(公告)号：IT1165447B
公开(公告)日：1987-04-22
申请号：IT2608679
申请日：1979-09-28
Applicant: IBM
Inventor： PRAVEEN CHAUDHARI , KIESSLING JOHN BRADFORD , PERLAMN DAVID JACOB , TYNAN EUGENE EDWARD , VON GUTFELD ROBERT JACOB
Abstract: 1. A method for bonding a metallic wire (13) to a microcircuit conductor (11), characterized in that it includes the steps of : a. applying said wire to the conductor, b. maintaining said wire in close contact with said conductor, c. applying a focussed energy beam (14) directed towards a point at least tangentially in contact with said wire, and forming a hole in said conductor, and d. applying additional energy to portions of said wire adjacent to said point for melting the wire metal so that the metal flows into said hole (15) to form an electrical contact between the wire and the conductor.
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公开(公告)号：FI65492B
公开(公告)日：1984-01-31
申请号：FI134474
申请日：1974-05-02
Applicant: IBM
Inventor： TYNAN EUGENE EDWARD , GUTFELD ROBERT J VON
Abstract: A light detector consisting of a thin film of metallic (or conducting) material having an induced anisotropy in conjunction with means for establishing a temperature gradient in the film in a direction normal to the plane of the film is disclosed. When thin films of molybdenum and tungsten are excited by a pulsed laser light at normal incidence to the film, transverse thermoelectric voltages are generated. Output voltages across a 50 ohm load of 10 millivolts have been observed for an incident laser pulse of approximately 1 KW. Wave lengths in the range of 0.46-1.06 mu m and pulse widths of approximately 3 to 300 nanoseconds produce output voltages. A correlation between intrinsic film stress and output voltage indicates that stress (one of induced anisotropy) in the metal film introduced during deposition or externally induced anisotropy such as can be produced by a magnetic field in magnetic materials gives rise to a nonscalar absolute thermoelectric power even though the metal films are usually considered to be isotropic in their transport properties. The output from the detector, in terms of polarity, may be reversed by reversing the direction of light incidence. Also, the direction and magnitude of the output may be controlled by adjusting the position of the metallic film relative to a pair of contacts disposed in sliding relationship with the metallic film. While not necessary to the practice of the present invention, an electrically insulating substrate is preferably used to cause a better temperature gradient normal to the plane of the film. In general, the response time of the films is dependent on the laser pulse width.
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