Patents by Inventor Mukta S. Farooq
Mukta S. Farooq 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: 6489686Abstract: The distance between a discrete or passive electrical component and an electrical semiconductor device and substrate or carrier is minimized by shortening the lead length connections of the passive component. One or more passive electronic components are mounted within the body of a carrier or board by creating a cavity in the substrate or carrier that is directly below a semiconductor device. The passive component is electrically connected to the substrate and device using solder bump technology resulting in much shorter lead length connections to and from the passive component.Type: GrantFiled: March 19, 2001Date of Patent: December 3, 2002Assignee: International Business Machines CorporationInventors: Mukta S. Farooq, John U. Knickerbocker, Srinivasa S. Reddy
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Patent number: 6461493Abstract: A process for fabricating a structure using a metal carrier and forming a double capacitor structure. The process comprises forming a first via hole through the metal carrier, forming a dielectric layer around the metal carrier and inside the first via hole, forming a second via hole through the dielectric layer and the metal carrier, and filling at least one of the via holes with conductive material. In one preferred embodiment, the process further comprises forming a third via hole through the metal carrier before the forming of a dielectric layer, wherein the dielectric layer is formed around the metal carrier, inside the first via hole, and inside the third via hole. The first via hole, the second via hole, and the third via hole are all filled with a conductive material. In one preferred embodiment, the dielectric layer comprises a top surface opposed to a bottom surface, and electrodes are formed on at least one of the top surface and the bottom surface of the dielectric layer.Type: GrantFiled: December 23, 1999Date of Patent: October 8, 2002Assignee: International Business Machines CorporationInventors: Mukta S. Farooq, Shaji Farooq, John U. Knickerbocker, Robert A. Rita, Srinivasa N. Reddy
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Patent number: 6430030Abstract: A multi-layer ceramic capacitor and method of manufacturing the capacitor, the capacitor having signal vias surrounded by an area containing a material having a low dielectric constant, the via and surrounding area of low dielectric constant material inserted in a material having a high dielectric constant.Type: GrantFiled: January 26, 2001Date of Patent: August 6, 2002Assignee: International Business Machines CorporationInventors: Mukta S. Farooq, Harvey C. Hamel, Robert A. Rita, Herbert I. Stoller
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Patent number: 6339527Abstract: The capacitor on a ceramic substrate one by unique film metallization including in one embodiment an in situ oxidation of titanium to create a metal oxide capacitor. The combination of metals when used with the appropriate optimized oxidation conditions and parameters ensures a high yielding capacitor with high capacitance in absence of noble metals and with ease of manufacture providing a low cost, high yield capacitor on ceramic.Type: GrantFiled: December 22, 1999Date of Patent: January 15, 2002Assignee: International Business Machines CorporationInventors: Mukta S. Farooq, John U. Knickerbocker, Srinivasa S. N. Reddy, Robert A. Rita, Roy Yu
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Patent number: 6335210Abstract: The present invention relates generally to a new structure and method for chip burn-in and/or testing. More particularly, the invention encompasses a baseplate that is secured to a delicate chip and a method for such an invention is also disclosed. The inventive baseplate provides an added strength to a complex chip while it is being tested and/or burned-in, and then during normal use the baseplate of this invention is an integrated component of the chip.Type: GrantFiled: December 17, 1999Date of Patent: January 1, 2002Assignee: International Business Machines CorporationInventors: Mukta S. Farooq, Raymond A. Jackson, Sarah H. Knickerbocker, Sudipta K. Ray
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Patent number: 6333563Abstract: The present invention relates generally to an electrical interconnection package and a method thereof. More particularly, the invention encompasses an invention that increases the fatigue life of a Ball Grid Array (BGA) electrical interconnection. This invention structurally couples at least one module to an organic interposer using a high modulus underfill material. The organic interposer is then joined to a organic board using standard joining processes. The inventive module can then be removed from the organic board at any time by moving the organic interposer using standard rework techniques.Type: GrantFiled: June 6, 2000Date of Patent: December 25, 2001Assignee: International Business Machines CorporationInventors: Raymond A. Jackson, Anson J. Call, Mark G. Courtney, Stephen A. DeLaurentis, Mukta S. Farooq, Shaji Farooq, Lewis S. Goldmann, Gregory B. Martin, Sudipta K. Ray
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Patent number: 6281692Abstract: Disclosed is an interposer and test structure for making contact between a substrate and a test bed. One embodiment of the interposer has a floating, rigid conductive element in a nonconductive body which makes temporary contact between the test bed and the substrate. In another embodiment of the invention, the interposer includes two layers of material, in which one layer includes pogo pins for contacting the substrate and the other layer includes pads for contacting the test bed. The pogo pins are on a grid spacing corresponding to that of the substrate input/output pads while the interposer pads are on a grid spacing corresponding to that of the pogo pin contactors of the test bed.Type: GrantFiled: October 5, 1998Date of Patent: August 28, 2001Assignee: International Business Machines CorporationInventors: Paul F. Bodenweber, Ralph R. Comulada, Mukta S. Farooq, Charles J. Hendricks, Philo B. Hodge, Vincent P. Peterson, Terence W. Spoor, Kathleen M. Wiley, Yuet-Ying Yu
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Publication number: 20010011571Abstract: A multi-layer ceramic capacitor and method of manufacturing the capacitor, the capacitor having signal vias surrounded by an area containing a material having a low dielectric constant, the via and surrounding area of low dielectric constant material inserted in a material having a high dielectric constant.Type: ApplicationFiled: January 26, 2001Publication date: August 9, 2001Applicant: International Business Machines CorporationInventors: Mukta S. Farooq, Harvey C. Hamel, Robert A. Rita, Herbert I. Stoller
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Patent number: 6255827Abstract: A system for locating electrically conductive contact points on an integrated circuit semiconductor substrate utilizes capacitance and line continuity measurements to control and direct the movement of a two-point probe tester in order to locate and precisely align each test probe with designated contact points. The system is capable of testing for continuity conditions or defects and perform other related electrical measurements.Type: GrantFiled: April 30, 1999Date of Patent: July 3, 2001Assignee: International Business Machines CorporationInventors: Mukta S. Farooq, Vincent P. Peterson, Kathleen M. Wiley
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Patent number: 6228682Abstract: The distance between a discrete or passive electrical component and an electrical semiconductor device and substrate or carrier is minimized by shortening the lead length connections of the passive component. One or more passive electronic components are mounted within the body of a carrier or board by creating a cavity in the substrate or carrier that is directly below a semiconductor device. The passive component is electrically connected to the substrate and device using solder bump technology resulting in much shorter lead length connections to and from the passive component.Type: GrantFiled: December 21, 1999Date of Patent: May 8, 2001Assignee: International Business Machines CorporationInventors: Mukta S. Farooq, John U. Knickerbocker, Srinivasa S. Reddy
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Patent number: 6216324Abstract: An electronic component structure is proposed, wherein an interposer thin film capacitor structure is employed between an active electronic component and a multilayer circuit card. A method for making the interposer thin film capacitor is also proposed. In order to eliminate fatal electrical shorts in the overlying thin film regions that arise from pits, voids, or undulations on the substrate surface, a thick first metal layer, on the order of 0.5-10 mm thick, is deposited on the substrate upon which the remaining thin films, including a dielectric film and second metal layer, are then applied. The first metal layer is comprised of Pt or other electrode metal, or a combination of Pt, Cr, and Cu metals, and a diffusion barrier layer. Additional Ti layers may be employed for adhesion enhancement. The thickness of the first metal layers are approximately: 200 A for the Cr layer; 0.5-10 mm for the Cu layer; 1000 A-5000 A for the diffusion barrier; and 100 A-2500 A for a Pt layer.Type: GrantFiled: August 25, 1999Date of Patent: April 17, 2001Assignee: International Business Machines CorporationInventors: Mukta S. Farooq, Shaji Farooq, Harvey C. Hamel, John U. Knickerbocker, Robert A. Rita, Herbert I. Stoller
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Patent number: 6200400Abstract: A multi-layer ceramic capacitor and method of manufacturing the capacitor, the capacitor having signal vias surrounded by an area containing a material having a low dielectric constant, the via and surrounding area of low dielectric constant material inserted in a material having a high dielectric constant.Type: GrantFiled: December 16, 1999Date of Patent: March 13, 2001Assignee: International Business Machines Corp.Inventors: Mukta S. Farooq, Harvey C. Hamel, Robert A. Rita, Herbert I. Stoller
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Patent number: 6178082Abstract: A multilayer ceramic substrate having a thin film structure containing capacitor connected thereto is provided as an interposer capacitor, the capacitor employing platinum as the bottom electrode of the capacitor. In a preferred capacitor, a dielectric material such as barium titanate is used as the dielectric material between the capacitor electrodes. The fabrication of the interposer capacitor requires an in-situ or post deposition high temperature anneal and the use of such dielectrics requires heating of the capacitor structure in a non-reducing atmosphere. A layer of a high temperature, thin film diffusion barrier such as TaSiN on the lower platinum electrode between the electrode and underlying multilayer ceramic substrate prevents or minimizes oxidization of the metallization of the multilayer ceramic substrate to which the thin film structure is connected during the fabrication process.Type: GrantFiled: February 26, 1998Date of Patent: January 23, 2001Assignee: International Business Machines CorporationInventors: Mukta S. Farooq, David E. Kotecki, Robert A. Rita, Stephen M. Rossnagel
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Patent number: 6072690Abstract: A multi-layer ceramic capacitor and method of manufacturing the capacitor, the capacitor having signal vias surrounded by an area containing a material having a low dielectric constant, the via and surrounding area of low dielectric constant material inserted in a material having a high dielectric constant.Type: GrantFiled: January 15, 1998Date of Patent: June 6, 2000Assignee: International Business Machines CorporationInventors: Mukta S. Farooq, Harvey C. Hamel, Robert A. Rita, Herbert I. Stoller
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Patent number: 6023407Abstract: An electronic component structure is proposed, wherein an interposer thin film capacitor structure is employed between an active electronic component and a multilayer circuit card. A method for making the interposer thin film capacitor is also proposed. In order to eliminate fatal electrical shorts in the overlying thin film regions that arise from pits, voids, or undulations on the substrate surface, a thick first metal layer, on the order of 0.5-10 .mu.m thick, is deposited on the substrate upon which the remaining thin films, including a dielectric film and second metal layer, are then applied. The first metal layer includes of Pt or other electrode metal, or a combination of Pt, Cr, and Cu metals, and a diffusion barrier layer. Additional Ti layers may be employed for adhesion enhancement. The thickness of the first metal layers are approximately: 200 A for the Cr layer; 0.5-10 .mu.m for the Cu layer; 1000 A-5000 A for the diffusion barrier; and 100 A-2500 A for a Pt layer.Type: GrantFiled: February 26, 1998Date of Patent: February 8, 2000Assignee: International Business Machines CorporationInventors: Mukta S. Farooq, Shaji Farooq, Harvey C. Hamel, John U. Knickerbocker, Robert A. Rita, Herbert I. Stoller
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Patent number: 5549808Abstract: The present invention relates generally to a new structure and method for capped copper electrical interconnects. More particularly, the invention encompasses a novel structure in which one or more of the copper electrical interconnects within a semiconductor substrate are capped to obtain a robust electrical interconnect structure. A method for obtaining such capped copper electrical interconnect structure is also disclosed. These capped interconnects can be a single layer or multi-layer structures. Similarly, the interconnect structure that is being capped can itself be composed of single or multi-layered material.Type: GrantFiled: May 12, 1995Date of Patent: August 27, 1996Assignee: International Business Machines CorporationInventors: Mukta S. Farooq, Suryanarayana Kaja, Eric D. Perfecto, George E. White
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Patent number: 5545927Abstract: The present invention relates generally to a new structure and method for capped copper electrical interconnects. More particularly, the invention encompasses a novel structure in which one or more of the copper electrical interconnects within a semiconductor substrate are capped to obtain a robust electrical interconnect structure. A method for obtaining such capped copper electrical interconnect structure is also disclosed. These capped interconnects can be a single layer or multi-layer structures. Similarly, the interconnect structure that is being capped can itself be composed of single or multi-layered material.Type: GrantFiled: May 12, 1995Date of Patent: August 13, 1996Assignee: International Business Machines CorporationInventors: Mukta S. Farooq, Suryanarayana Kaja, Eric D. Perfecto, George E. White
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Patent number: 5266446Abstract: A method of making a multilayer thin film structure on the surface of a dielectric substrate which includes the steps of:a. forming a multilayer thin film structure including the steps of:applying a first layer of dielectric polymeric material on the surface of a dielectric substrate,applying a second layer of dielectric polymeric material over the first layer of polymeric material wherein the second polymeric material is photosensitive,imagewise exposing and developing the second polymeric material to form a feature therein, the second layer feature in communication with at least one feature formed in the first polymeric material; andb. filling the features in the entire multilayer structure simultaneously with conductive material.Preferably, the first layer feature is a via and the second layer feature is a capture pad or wiring channel. Also disclosed is a multilayer thin film structure made by this method.Type: GrantFiled: May 26, 1992Date of Patent: November 30, 1993Assignee: International Business Machines CorporationInventors: Kenneth Chang, George Czornyj, Mukta S. Farooq, Ananda H. Kumar, Marvin S. Pitler, Heinz O. Steimel