Patents by Inventor Raschid Bezama

Raschid Bezama 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).

  • Publication number: 20080060792
    Abstract: A manifold apparatus, system and method for thermally controlling a substrate whereby a manifold body having a microjet array and a drain array traversing there-through in a direction orthogonal to a substrate surface and parallel to each other is attached to the substrate surface for heating or cooling thereof. A cavity of the manifold body resides over the substrate surface such that liquid is emitted from the liquid microjets into the cavity for contact with the substrate surface, while the drains orthogonally remove spent liquid from the cavity. The manifold body is designed and configured into a plurality of cooling cells, whereby each cooling cell has a liquid microjet surrounded by at least three drains for preventing interactions between adjacent liquid microjets within adjacent cooling cells. Gas microjets may also traverse through the manifold body to form an atomized liquid spray for contact with the substrate surface.
    Type: Application
    Filed: June 1, 2007
    Publication date: March 13, 2008
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Daniel Berger, Raschid Bezama, Lester Herron, Bruno Michel, Govindarajan Natarajan
  • Publication number: 20070227173
    Abstract: A distribution apparatus, system and method for thermal control whereby a plate of a manifold assembly has predetermined surface features positioned on specific locations on a surface thereof for enhancing the cooling capabilities of the assembly. The predetermined surface features of the plate delay a velocity decay of a fluid impinging the surface of the plate, while also increase the surface area of the plate exposed to the impinging liquid, which in turn, maximize both the reliability and thermal performance of the overall thermal system at a given maximum operating pressure.
    Type: Application
    Filed: March 30, 2006
    Publication date: October 4, 2007
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Raschid Bezama, Govindarajan Natarajan
  • Publication number: 20070188731
    Abstract: An apparatus for reducing contamination in immersion lithography includes a wafer chuck assembly including a wafer chuck configured to hold a semiconductor wafer on a support surface thereof. An O-ring assembly has a deformable O-ring attached to movable support sections arranged in a generally circular configuration so as to surround the wafer.
    Type: Application
    Filed: February 16, 2006
    Publication date: August 16, 2007
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Raschid Bezama, Dario Goldfarb, Kafai Lai, Xiao Liu, Dmitriy Shneyder
  • Publication number: 20070177124
    Abstract: An apparatus for reducing contamination in immersion lithography includes a wafer chuck assembly having a wafer chuck configured to hold a semiconductor wafer on a support surface thereof. The wafer chuck has a gap therein, the gap located adjacent an outer edge of the wafer, and the gap containing a volume of immersion lithography fluid therein. A fluid circulation path is configured within the wafer chuck so as to facilitate the radial outward movement of the immersion lithography fluid in the gap, thereby maintaining a meniscus of the immersion lithography fluid at a selected height with respect to a top surface of the semiconductor wafer.
    Type: Application
    Filed: January 27, 2006
    Publication date: August 2, 2007
    Applicant: International Business Machines Corporation
    Inventors: Dmitriy Shneyder, Raschid Bezama, Dario Goldfarb, Kafai Lai
  • Publication number: 20070065647
    Abstract: A method to control the post sinter distortion of hot pressing sintered multilayer ceramic laminate by placing a non-densifying structure in the green ceramic laminate prior to sintering. One or more non-densifying structures are placed on one or more ceramic greensheets which are then stacked and laminated to form a green ceramic laminate. The laminate is then sintered and the non-densifying structure will control the dimensions of the hot pressed multilayer ceramic substrate. The method can be used to control post sinter dimensions in MLC substrates manufactured as either single or multi-up substrates by placing the non-densifying structure in the kerf area between the individual product ups prior to sintering.
    Type: Application
    Filed: December 5, 2003
    Publication date: March 22, 2007
    Inventors: Govindarajan Natarajan, Raschid Bezama
  • Publication number: 20070045816
    Abstract: An electronic package and method for forming such package that expands the current capability of lines and/or reducing line resistance for packages with a given feature dimension while relaxing feature tolerances. The methods and structures include electrical wirings having regions of larger wire cross-sectional areas in locations where the package must supply higher current distribution to the electronic devices and/or where signal lines need lower electrical resistance. These larger wire cross-sectional areas are vertically extended conductors applied to either the entire conductor or portions of the conductor.
    Type: Application
    Filed: September 28, 2006
    Publication date: March 1, 2007
    Applicant: International Business Machines Corporation
    Inventors: Govindarajan Natarajan, Raschid Bezama
  • Publication number: 20060266497
    Abstract: A manifold apparatus, system and method for thermally controlling a substrate whereby a manifold body having a microjet array and a drain array traversing there-through in a direction orthogonal to a substrate surface and parallel to each other is attached to the substrate surface for heating or cooling thereof. A cavity of the manifold body resides over the substrate surface such that liquid is emitted from the liquid microjets into the cavity for contact with the substrate surface, while the drains orthogonally remove spent liquid from the cavity. The manifold body is designed and configured into a plurality of cooling cells, whereby each cooling cell has a liquid microjet surrounded by at least three drains for preventing interactions between adjacent liquid microjets within adjacent cooling cells. Gas microjets may also traverse through the manifold body to form an atomized liquid spray for contact with the substrate surface.
    Type: Application
    Filed: May 25, 2005
    Publication date: November 30, 2006
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Daniel Berger, Raschid Bezama, Lester Herron, Bruno Michel, Govindarajan Natarajan
  • Publication number: 20060260784
    Abstract: Low-pressure drop thermal assemblies, systems and methods of making low-pressure drop thermal assemblies for use in high power flux situations. A manifold body is attached to a distributor to form a subassembly. This subassembly is in communication with a substrate surface, which has a semiconductor device in need of thermal management thereon. An enclosed cavity is formed between the target substrate surface and the subassembly, and a seal of the cavity protects critical components residing on the active surface of the semiconductor device. The distributor includes a distributed liquid impingement microjet inlet array isolated from and parallel with a distributed microjet drain array for impinging cooling fluid and removing spent heated fluid in a direction orthogonal to a target surface for maximizing the heat transfer rate, and thereby providing high cooling flux capabilities while enabling low-pressure drops.
    Type: Application
    Filed: May 19, 2005
    Publication date: November 23, 2006
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Raschid Bezama, Govindarajan Natarajan, Kamal Sikka, Hilton Toy
  • Publication number: 20060002087
    Abstract: Apparatus and methods are provided for microchannel cooling of electronic devices such as IC chips, which enable efficient and low operating pressure microchannel cooling of high power density electronic devices. Apparatus for microchannel cooling include integrated microchannel heat sink devices and fluid distribution manifold structures that are designed to provide uniform flow and distribution of coolant fluid and minimize pressure drops along coolant flow paths.
    Type: Application
    Filed: July 1, 2004
    Publication date: January 5, 2006
    Inventors: Raschid Bezama, Evan Colgan, John Magerlein, Roger Schmidt
  • Publication number: 20060002088
    Abstract: Apparatus and methods are provided for microchannel cooling of electronic devices such as IC chips, which enable efficient and low operating pressure microchannel cooling of high power density electronic devices having a non-uniform power density distribution, which are mounted face down on a package substrate. For example, integrated microchannel cooler devices (or microchannel heat sink devices) for cooling IC chips are designed to provide uniform flow and distribution of coolant fluid and minimize pressure drops along coolant flow paths, as well as provide variable localized cooling capabilities for high power density regions (or “hot spots”) of IC chips with higher than average power densities.
    Type: Application
    Filed: July 1, 2004
    Publication date: January 5, 2006
    Inventors: Raschid Bezama, Evan Colgan, John Magerlein, Roger Schmidt
  • Publication number: 20050205699
    Abstract: A fluid particle cleaner and method are disclosed. The invention provides a partition to a side of a fluid nozzle to form: a central cavity configured to define the fluid departing the surface into a central cavity vortex; and a side cavity adjacent the central cavity to define fluid escaping from the central cavity into a side vortex. The vortices interact in a counter-rotating and stationary fashion. The strong and smaller central vortex creates an upward air velocity field that forces any airborne particle to move away from the surface. The side vortex is designed to: connect the central vortex velocity field to the vacuum flow and allow airborne particles to remain suspended until they reach the vacuum flow; and create a decelerating field for high speed particles traveling parallel (horizontally) to the surface to increase the residence time in the central vortex with positive vertical velocity.
    Type: Application
    Filed: March 22, 2004
    Publication date: September 22, 2005
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Raschid Bezama, Nike Medahunsi
  • Publication number: 20050146016
    Abstract: An electronic package and method for forming such package that expands the current capability of lines and/or reducing line resistance for packages with a given feature dimension while relaxing feature tolerances. The methods and structures include electrical wirings having regions of larger wire cross-sectional areas in locations where the package must supply higher current distribution to the electronic devices and/or where signal lines need lower electrical resistance. These larger wire cross-sectional areas are vertically extended conductors applied to either the entire conductor or portions of the conductor.
    Type: Application
    Filed: January 6, 2004
    Publication date: July 7, 2005
    Applicant: International Business Machines Corporation
    Inventors: Govindarajan Natarajan, Raschid Bezama
  • Publication number: 20050077025
    Abstract: A method and apparatus for the rapid cooling of screen masks used in the fabrication of semiconductor components is provided. The method and apparatus use a specially designed cooling plate which is contacted with a mask frame holding the screening mask. After a heated cleaning step which cleans the mask frame and screening mask of metal paste used in the screening operation, the cooling plate having one or more concave lower surfaces contacts the upper surfaces of the mask frame and bends the mask frame in the shape of the concave surfaces. This ensures intimate contact between the cooling plate and mask frame and enhances the thermal efficiency of the cooling step.
    Type: Application
    Filed: October 14, 2003
    Publication date: April 14, 2005
    Applicant: International Business Machines Corporation
    Inventors: Raschid Bezama, William Harkins, David Long, Jason Miller, Christopher Pepe, Ronald Rothkranz, John Rudy, Benjamin Tongue
  • Publication number: 20050077657
    Abstract: A plate for use in mixing and testing materials in the pharmaceutical industry is formed by a method in which apertures in a set of greensheets are formed by a material removal process, at least some of the apertures being filled with a composite material combining a durable matrix material that remains in the final structure and a temporary material that is removed after the sintering step. An array of apertures is formed in a template plate by photolithographic means and transferred to an adjacent greensheet.
    Type: Application
    Filed: October 14, 2003
    Publication date: April 14, 2005
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: UMAR AHMAD, RASCHID BEZAMA, JAMES HUMENIK, JOHN KNICKERBOCKER, GOVINDARAJAN NATARAJAN, RAO VALLABHANENI
  • Publication number: 20050054200
    Abstract: An apparatus for flattening sintered ceramic electronic packaging substrates having opposing faces with undesired camber interleaves the substrates with spacers. At least one heating zone includes a heat transfer medium movable toward and away from the stack of interleaved ceramic substrates and spacers to apply a desired rate of heat by direct contact with or close proximity to sides of the stack. A plunger applies pressure to the stack in a direction normal to the faces of the substrates. At least one cooling zone includes a heat transfer medium movable toward and away from the stack to remove heat introduced in the heating zone by direct contact with or close proximity to sides of the stack. A reducing gas supply is operatively connected to the at least one heating zone and at least one cooling zone to supply gas to maintain a controlled reducing atmosphere within the apparatus.
    Type: Application
    Filed: September 16, 2004
    Publication date: March 10, 2005
    Inventors: Raschid Bezama, Renee Weisman