Patents by Inventor Eliezer Wiener-Avnear
Eliezer Wiener-Avnear has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 6798717Abstract: A pixel array device is fabricated by a laser micro-milling method under strict process control conditions. The device has an array of pixels bonded together with an adhesive filling the grooves between adjacent pixels. The array is fabricated by moving a substrate relative to a laser beam of predetermined intensity at a controlled, constant velocity along a predetermined path defining a set of grooves between adjacent pixels so that a predetermined laser flux per unit area is applied to the material, and repeating the movement for a plurality of passes of the laser beam until the grooves are ablated to a desired depth. The substrate is of an ultrasonic transducer material in one example for fabrication of a 2D ultrasonic phase array transducer. A substrate of phosphor material is used to fabricate an X-ray focal plane array detector.Type: GrantFiled: June 9, 2003Date of Patent: September 28, 2004Assignee: Eli Wiener-AvnearInventors: Eliezer Wiener-Avnear, James Earl McFall
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Publication number: 20040114467Abstract: A pixel array device is fabricated by a laser micro-milling method under strict process control conditions. The device has an array of pixels bonded together with an adhesive filling the grooves between adjacent pixels. The array is fabricated by moving a substrate relative to a laser beam of predetermined intensity at a controlled, constant velocity along a predetermined path defining a set of grooves between adjacent pixels so that a predetermined laser flux per unit area is applied to the material, and repeating the movement for a plurality of passes of the laser beam until the grooves are ablated to a desired depth. The substrate is of an ultrasonic transducer material in one example for fabrication of a 2D ultrasonic phase array transducer. A substrate of phosphor material is used to fabricate an X-ray focal plane array detector.Type: ApplicationFiled: June 9, 2003Publication date: June 17, 2004Inventors: Eliezer Wiener-Avnear, James Earl McFall
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Patent number: 6586702Abstract: A pixel array device is fabricated by a laser micro-milling method under strict process control conditions. The device has an array of pixels bonded together with an adhesive filling the grooves between adjacent pixels. The array is fabricated by moving a substrate relative to a laser beam of predetermined intensity at a controlled, constant velocity along a predetermined path defining a set of grooves between adjacent pixels so that a predetermined laser flux per unit area is applied to the material, and repeating the movement for a plurality of passes of the laser beam until the grooves are ablated to a desired depth. The substrate is of an ultrasonic transducer material in one example for fabrication of a 2D ultrasonic phase array transducer. A substrate of phosphor material is used to fabricate an X-ray focal plane array detector.Type: GrantFiled: February 9, 2001Date of Patent: July 1, 2003Assignee: Laser Electro Optic Application Technology CompanyInventors: Eliezer Wiener-Avnear, James Earl McFall
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Publication number: 20010013510Abstract: A pixel array device is fabricated by a laser micro-milling method under strict process control conditions. The device has an array of pixels bonded together with an adhesive filling the grooves between adjacent pixels. The array is fabricated by moving a substrate relative to a laser beam of predetermined intensity at a controlled, constant velocity along a predetermined path defining a set of grooves between adjacent pixels so that a predetermined laser flux per unit area is applied to the material, and repeating the movement for a plurality of passes of the laser beam until the grooves are ablated to a desired depth. The substrate is of an ultrasonic transducer material in one example for fabrication of a 2D ultrasonic phase array transducer. A substrate of phosphor material is used to fabricate an X-ray focal plane array detector.Type: ApplicationFiled: February 9, 2001Publication date: August 16, 2001Inventors: Eliezer Wiener-Avnear, James Earl McFall
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Patent number: 6087618Abstract: An x-ray focal plane array (XFPA) detector is fabricated by a laser micro-milling method under strict process control conditions. The detector has an array of phosphor pixels bonded together with a light reflective adhesive filling the grooves between adjacent pixels. The phosphor array is bonded on top of a visible detector array, either directly or via a light guiding structure, such that each phosphor pixel is aligned with a corresponding visible detector pixel. The phosphor array is fabricated by moving a phosphor substrate relative to a laser beam of predetermined intensity at a controlled, constant velocity along a predetermined path defining a set of grooves between adjacent pixels so that a predetermined laser flux per unit area is applied to the phosphor material, and repeating the movement for a plurality of passes of the laser beam until the grooves are ablated to a desired depth.Type: GrantFiled: March 24, 1999Date of Patent: July 11, 2000Assignee: Eliezer Wiener-AvnearInventors: Eliezer Wiener-Avnear, James Earl McFall
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Patent number: 5956382Abstract: An x-ray focal plane array (XFPA) detector is fabricated by a laser micro-milling method under strict process control conditions. The detector has an array of phosphor pixels bonded together with a light reflective adhesive filling the grooves between adjacent pixels. The phosphor array is bonded on top of a visible detector array, either directly or via a light guiding structure, such that each phosphor pixel is aligned with a corresponding visible detector pixel. The phosphor array is fabricated by moving a phosphor substrate relative to a laser beam of predetermined intensity at a controlled, constant velocity along a predetermined path defining a set of grooves between adjacent pixels so that a predetermined laser flux per unit area is applied to the phosphor material, and repeating the movement for a plurality of passes of the laser beam until the grooves are ablated to a desired depth.Type: GrantFiled: September 25, 1997Date of Patent: September 21, 1999Assignee: Eliezer Wiener-Avnear, doing business as Laser Electro Optic Application Technology Comp.Inventors: Eliezer Wiener-Avnear, James Earl McFall
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Patent number: 4817850Abstract: A substrate contact structure which includes a plurality of contact pads formed on a surface of the substrate and located for receiving a predetermined integrated circuit chip or die having conductive bonding bumps corresponding to and respectively associated with the plurality of contact pads. Each of the contact pads includes a plurality of bonding sites, wherein the pattern of bonding sites is substantially identical for each of the contact pads. Each bonding site has corresponding bonding sites on the other contact pads which cooperatively form sets of bonding sites, each of which is a mirror image of the conductive bonding bumps on the predetermined integrated circuit chip. Methods of producing substrates suitable for removal and replacement of bump bonded integrated circuit chips, as well as methods of repair of such structures are also disclosed.Type: GrantFiled: March 28, 1988Date of Patent: April 4, 1989Assignee: Hughes Aircraft CompanyInventors: Eliezer Wiener-Avnear, Ronald L. Williams
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Patent number: 4466702Abstract: This invention is a light valve using birefringent nematic liquid crystals in which compensation for residual birefringence is achieved by passing light through two separate liquid crystal layers having their major optical axes aligned perpendicular to one another at the interface between the two liquid crystal layers.Type: GrantFiled: April 1, 1981Date of Patent: August 21, 1984Assignee: Hughes Aircraft CompanyInventors: Eliezer Wiener-Avnear, Jan Grinberg
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Patent number: 4408839Abstract: This invention is a light valve using birefringent nematic liquid crystals in which compensation for residual birefringence is achieved by passing light through two separate liquid crystal layers having their major optical axes twisted oppositely along an axis parallel to the direction of light propagation and aligned perpendicular to one another at the interface between the two liquid crystal layers.Type: GrantFiled: April 1, 1981Date of Patent: October 11, 1983Assignee: Hughes Aircraft CompanyInventor: Eliezer Wiener-Avnear
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Patent number: 4378955Abstract: Method of and apparatus for operating an image display system using a hybrid field effect liquid crystal light valve of the type wherein the molecules of the nematic liquid crystal layer are helically twisted through an acute angle. A polarized projection beam is oriented with its polarization direction within the acute twist angle and applied to a reflective face of the light valve. A writing light input image is applied to a photoresponsive opposite face in order to modulate the reflected projection beam. An electric field applied across the light valve is adjusted between two levels to produce either a simultaneous display of multicolor symbology and achromatic (black-white) gray scale images or a separate display of either one of them.Type: GrantFiled: June 30, 1981Date of Patent: April 5, 1983Assignee: Hughes Aircraft CompanyInventors: William P. Bleha, Jr., Eliezer Wiener-Avnear, Paul F. Robusto
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Patent number: 4149073Abstract: A system and method are described for the real-time conversion of a two-cr optical input into coherent light of two colors. The system includes a first electrooptic device oriented to receive the optical input, the device having applied thereto a periodic voltage producing an electrical field periodically varying between magnitudes effective to block one or the other color of the optical input. The system further includes a second electrooptic device oriented to produce coherent light of two colors, this device having applied thereto a second periodic voltage in synchronization with the first-mentioned voltage to produce an electrical field periodically varying between magnitudes effective to block one or the other color of the coherent light source. A gate applies the second periodic voltage to the second electrooptic device only when light of either of the two colors is outputted by the first electrooptic device.Type: GrantFiled: August 23, 1977Date of Patent: April 10, 1979Assignees: Ramot University Authority for Applied Research & Industrial Development Ltd., Ben Gurion University of the Negev, Research & Development AuthorityInventors: Nadav Bar-Chaim, Ady Seidman, Eliezer Wiener-Avnear