Patents Represented by Attorney, Agent or Law Firm Marian Underweiser
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Patent number: 6514843Abstract: A method of enhancing the rate of transistor gate corner oxidation, without significantly increasing the thermal budget of the overall processing scheme is provided. Specifically, the method of the present invention includes implanting ions into gate corners of a Si-containing transistor, and exposing the transistor including implanted transistor gate corners to an oxidizing ambient. The ions employed in the implant step include Si; non-retarding oxidation ions such as O, Ge, As, B, P, In, Sb, Ga, F, Cl, He, Ar, Kr, and Xe; and mixtures thereof.Type: GrantFiled: April 27, 2001Date of Patent: February 4, 2003Assignee: International Business Machines CorporationInventors: Omer Dokumaci, Oleg Gluschenkov, Suryanarayan G. Hegde, Richard Kaplan, Mukesh Khare
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Patent number: 6515723Abstract: The present invention solves a first problem, that the damage of the TFTs on the LCD panel of the tiling panel due to the ESD during the rubbing operation and other process, and a second problem that various kinds of lower glass substrate 1 and various kinds of upper glass substrate 2 are required to provide the tiling panel.Type: GrantFiled: July 14, 2000Date of Patent: February 4, 2003Assignee: International Business Machines CorporationInventor: Shunji Suzuki
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Patent number: 6509612Abstract: A method and structure for a metal oxide semiconductor field effect transistor (MOSFET) includes patterning a gate stack (having a gate conductor layer and a gate dielectric) over a substrate and modifying the gate dielectric beneath the gate conductor, such that the gate dielectric has a central portion and modified dielectric regions adjacent the central portion. The modified dielectric regions have a lower dielectric constant than that of the gate dielectric and the central portion is shorter than the gate conductor.Type: GrantFiled: May 4, 2001Date of Patent: January 21, 2003Assignee: International Business Machines CorporationInventors: Lawrence A. Clevenger, Louis L. Hsu, Carl J. Radens, Joseph F. Shepard, Jr.
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Patent number: 6509947Abstract: A device and method for maintaining the volume of a liquid contained within a cavity between two substrates to something equal or nearly equal to that of the volume of the cavity. A particular application is a liquid crystal display (LCD), in which a liquid crystal (LC) material is contained within a cavity between two flat display substrates. The device serves to minimize the volume differential between the liquid and the cavity caused by a change in temperature of the display, such that the formation of bubbles within the liquid is substantially or completely prevented. In so doing, the device essentially eliminates thermally-induced defects that would otherwise be visible to the user.Type: GrantFiled: December 19, 2000Date of Patent: January 21, 2003Assignee: International Business Machines CorporationInventors: Robert Jacob von Gutfeld, James Henry Glownia, Richard Allen John, Shui-Chih Alan Lien
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Patent number: 6503664Abstract: The fabrication of transmissive attenuating types of phase shift masks by formation of and selective etch of a layer, deposited on a substrate. This single layer provides both the phase shift and the attenuation required and is readily patterned and processed to produce attenuating phase shift masks.Type: GrantFiled: April 9, 1999Date of Patent: January 7, 2003Assignee: International Business Machines CorporationInventors: Derek Brian Dove, Kwang Kuo Shih
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Patent number: 6502324Abstract: The present invention provides a method of alignment between sheet materials, a method of alignment, a substrate assembling method, and an aligning apparatus, which are capable of easily and surely performing highly accurate alignment and suppressing a reduction in material yield. After alignment performed based on a band-like light as a reference, alignment is performed based on a joint of a condenser lens portion of a lenticular lens as a reference. More specifically, the deviation of a liquid crystal display cell in a rotational direction is corrected by using a light emitted from a light source and condensed to be band-like at the lenticular lens as a reference. Subsequently, by changing a depth of focus of a microscope, measurement is performed for positions of a black matrix of the liquid crystal display cell and the joint of the condenser lens portion of the lenticular lens.Type: GrantFiled: December 12, 2000Date of Patent: January 7, 2003Assignee: International Business Machines CorporationInventors: Michikazu Noguchi, Tsuneo Heitoh, Evan George Colgan, Masaru Suzuki
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Patent number: 6501217Abstract: An organic light emitting device is provided which includes a cathode (51), an anode (47, 46, 48), and an organic electroluminescent region (49, 50). The anode includes a metal layer (46), a barrier layer (47), and an anode modification layer (48). Light is emitted through the cathode (51) when a voltage is applied between the anode (47, 46, 48) and the cathode (51).Type: GrantFiled: January 10, 2000Date of Patent: December 31, 2002Assignee: International Business Machines CorporationInventors: Tilman A. Beierlein, Eliav Haskal, Heike Riel, Walter Riess, Paul Seidler, Samuel Clagett Strite, Horst Vestweber
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Patent number: 6501529Abstract: The present invention provides a newly constituted liquid crystal display element incorporating a touch sensor unit. In a liquid crystal display element where a liquid crystal layer is inserted between a first substrate and a second substrate, a display electrode for displaying an image and a touch electrode for detecting a touch position are provided on the surfaces of the first substrate and the second substrate opposing with each other. The display electrode may be used as the touch electrode. A pillar-shaped spacer may be formed to support the first substrate and the second substrate. Additionally, the touch electrode may be provided on a convex-shaped part formed on the substrate.Type: GrantFiled: July 28, 2000Date of Patent: December 31, 2002Assignee: International Business Machines CorporationInventors: Mikio Kurihara, Eisuke Kanzaki, Fumitoshi Kiyooka
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Patent number: 6495854Abstract: A method and structure for a d-wave qubit structure includes a qubit disk formed at a multi-crystal junction (or qubit ring) and a superconducting screening structure surrounding the qubit. The structure may also include a superconducting sensing loop, where the superconducting sensing loop comprises an s-wave superconducting ring. The structure may also include a superconducting field effect transistor.Type: GrantFiled: December 30, 1999Date of Patent: December 17, 2002Assignee: International Business Machines CorporationInventors: Dennis M. Newns, Chang C. Tsuei
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Patent number: 6490217Abstract: A magnetic memory device for selectively writing one or more memory cells in the memory device includes a plurality of global write lines for selectively conveying a destabilizing current, the global write lines being disposed from the memory cells such that the destabilizing current passing through the global write lines does not destabilize unselected memory cells in the memory device, each global write line including a plurality of segmented write lines operatively connected thereto. The memory device further includes a plurality of segmented groups, each segmented group including a plurality of memory cells operatively coupled to a corresponding segmented write line, each segmented write line being disposed in relation to the plurality of corresponding memory cells such that the destabilizing current passing through the segmented write line destabilizes the corresponding memory cells for writing.Type: GrantFiled: May 23, 2001Date of Patent: December 3, 2002Assignee: International Business Machines CorporationInventors: John Kenneth DeBrosse, William Robert Reohr
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Patent number: 6490018Abstract: A reflective liquid crystal display device includes a first transparent substrate, a first electrode disposed on one surface of the first transparent substrate, a second transparent substrate having a first surface and a second surface, and a second electrode disposed on the first surface of the second transparent substrate. The first transparent substrate and the second transparent substrate are arranged so that the first electrode and the second electrode face each other and a space is provided between the first electrode and the second electrode. A guest-host liquid crystal layer is disposed in the space, and the first electrode and the second electrode define a plurality of picture element positions. A reflector unit having a shape of a trigonal pyramid is disposed at each of the plurality of picture element positions on the second surface of the second transparent substrate.Type: GrantFiled: September 19, 2000Date of Patent: December 3, 2002Assignee: International Business Machines CorporationInventor: Yoichi Taira
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Patent number: 6484314Abstract: The present invention provides a method and a system for generating an exception handling instruction and for avoiding the execution of unnecessary instructions. More particularly, an internal opcode in a compiler is read and one internal opcode is obtained. Whether or not the obtained internal opcode is an instruction for which exception checking is required is determined. If exception checking is required for the opcode, an exception checking instruction having a sequence of bits that are uniquely determined must be generated in accordance with the type of exception, without generating an instruction for substituting into a register a label indicating the type of exception. Then, a processor instruction is generated corresponding to the obtained internal opcode. The above processing is repeated for the remaining internal opcode, and an exception handling instruction is generated.Type: GrantFiled: October 14, 1999Date of Patent: November 19, 2002Assignee: International Business Machines CorporationInventors: Kazuaki Ishizaki, Hideaki Komatsu
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Patent number: 6479847Abstract: A method of manufacturing an integrated circuit device includes forming a laminated structure having a first side and a second side, the first side includes a first type Mott channel layer and the second side includes a second type Mott channel layer. A first source region and a first drain region is formed on the first side, a second source region and a second drain region is formed on the second side, a first gate region is formed on the second side, opposite the first source region and the first drain region and a second gate region is formed on the first side, opposite the second source region and the second drain region. The first source, the first drain and the first gate comprise a first type field effect transistor and the second source, the second drain and the second gate comprise a second type field effect transistor.Type: GrantFiled: May 7, 1999Date of Patent: November 12, 2002Assignee: International Business Machines CorporationInventors: James A. Misewich, Alejandro G. Schrott, Bruce A. Scott
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Patent number: 6472705Abstract: The present invention is directed to a microelectric device and especially a Field effect transistor comprising a source, drain, channel, an insulating layer overlying said channel containing at least one closed cage molecule, said closed cage molecule being capable of exhibiting a Coulomb blockade effect upon application of a voltage between said source and drain. Two different microelectronic devices are described containing the closed cage molecule, a logic cell and a memory cell.Type: GrantFiled: November 18, 1998Date of Patent: October 29, 2002Assignee: International Business Machines CorporationInventors: Donald Stimson Bethune, Sandip Tiwari
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Patent number: 6472804Abstract: An electrode for an electro-optical device is provided. Light is passing through this electrode which comprises a pattern of conductive elements. The elements have dimensions small compared to the wavelength of light, so that the electrode appear transparent. The light intensity distribution after having penetrated the electrode compared with the light intensity distribution before having penetrated the electrode is influenced by forward scattering.Type: GrantFiled: June 25, 1999Date of Patent: October 29, 2002Assignee: International Business Machines CorporationInventors: Peter Mueller, Walter Riess
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Patent number: 6468599Abstract: An organic polymer film can be completely decomposed and removed from a substrate surface by exposing the film to ultraviolet radiation having a wavelength of 180 nm or less. Also, ultraviolet radiation not longer than 180 nm in wavelength is scarcely transmitted through a transparent conductive oxide such as ITO and, thus, can be used for eliminating a defective polyimide alignment film formed on a color filter substrate and an array substrate having a transparent electrode pattern of ITO formed on the surface of a pigment portion and a TFT structure, respectively. According to the present invention, the defective alignment film on the substrates can be removed completely without any damage such as discoloring of the pigment portion and/or changing the TFT characteristics.Type: GrantFiled: December 17, 1999Date of Patent: October 22, 2002Assignee: International Business Machines CorporationInventor: Kazuo Terada
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Patent number: 6457833Abstract: A digital micro mirror device (and a single-panel color projector using a digital micro mirror device) includes a reflection surface including an array of micro mirrors. The reflection surface is divided into two or more areas, and the axis direction about which a mirror of the array of micro mirrors rotates in one area is the same for all of the micro mirrors in the area. The single-panel color projector includes a white light source, a color separator for separating a white light from the white light source into two or more light beams, the digital micro mirror device reflecting the two or more light beams, an illumination light establishing unit for illuminating the two or more light beams from the color separator, and a projection unit for collecting and projecting light reflected from the digital micro mirror device.Type: GrantFiled: March 3, 2000Date of Patent: October 1, 2002Assignee: International Business Machines CorporationInventors: Yoshimoto Ishikawa, Akinori Kaneko
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Patent number: 6452110Abstract: A method and structure for producing metallic polymer conductor lines comprising of an alternative methodology to a traditional damascene approach, called a cloisonne or inverse damascene approach. The cloisonne approach comprises the steps of coating a photosensitive polymer such as pyrrole or aniline with a silver salt on a semiconductor substrate. Using standard photolithography and resist developing techniques, the conducting polymer is exposed to a wet chemical developer, removing a portion of the exposed conducting polymer region, leaving only conducting polymer lines on top of the substrate. Next, an insulating dielectric layer is deposited over the entire structure and a chemical mechanical polish planarization of the insulator is performed creating the conducting polymer lines. Included in another aspect of the invention is a method and structure for a self-planarizing interconnect material comprising a conductive polymer thereby reducing the number of processing steps relative to the prior art.Type: GrantFiled: July 5, 2001Date of Patent: September 17, 2002Assignee: International Business Machines CorporationInventors: Lawrence A. Clevenger, Louis L. Hsu, Carl J. Radens, Li-Kong Wang, Keith Kwong Hon Wong
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Patent number: 6452093Abstract: A cable (and heat sink) for radiating heat includes a heat conducting and radiating member for conducting heat in a longitudinal direction of the cable and radiating the conducted heat. The heat sink includes the cable for radiating heat, and a heat connecting member for thermally connecting a heat generator to the cable.Type: GrantFiled: February 25, 2000Date of Patent: September 17, 2002Assignee: International Business Machines CorporationInventors: Shigeru Ishii, Shigeki Mori, Hirokazu Nishimura, Shinji Nakai
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Patent number: 6452764Abstract: Magnetoresistive devices are disclosed which include a changeable magnetic region within which at least two magnetic states can be imposed. Upon magnetoresistive electrical interaction with the device, the relative orientation of the magnetic states of the changeable magnetic region, and a proximate reference magnetic region, can be sensed thereby providing a binary data storage capability. The present invention limits the electrical interaction to only a preferred portion of the changeable magnetic region, e.g., the portion within which the two magnetic states can be dependably predicted to be substantially uniform, and opposite of one another. Structures for limiting the electrical interaction to this preferred portion of the changeable magnetic region are disclosed, and include smaller interaction regions, and alternating areas of insulation and conductive, interaction regions, disposed proximate the changeable magnetic region.Type: GrantFiled: October 16, 2000Date of Patent: September 17, 2002Assignee: International Business Machines CorporationInventors: David William Abraham, Philip Edward Batson, William Joseph Gallagher, Stuart Parkin, John Slonczewski, Philip Louis Trouilloud