A plasma display device of the type having a composite back plate including a metal substrate and a ceramic barrier rib structure, is formed using a green ceramic tape which is a combination of two glasses, a primary glass which flows back during firing and a secondary glass that has a relatively high thermal coefficient of expansion. These glasses are combined in proportion to match the thermal coefficient of expansion of the metal substrate. Channels are formed on the inner surface of the back panel by laminating a green ceramic tape to the metal substrate and then soaking the laminated tape in a solvent before embossing the green tape to form the ribs. This soaking step enhances the flow of the green ceramic tape during the embossing process. The ceramic components of the green tape are formulated with a particle size 15 m or more to enhance particle flow when the green tape is embossed. Electrodes are printed onto one or more of the green ceramic tape layers, by screen printing using a metal emulsion screen, prior to embossing such that the electrode layer covers all or substantially all of the green tape layer and the electrodes are separated by the embossing process.
Integrated Heat Sinking Packages Using Low Temperature Co-Fired Ceramic Metal Circuit Board Technology
Integrated packages incorporating multilayer ceramic circuit boards mounted on a metal support substrate can be used for temperature control by the metal support substrate. Various electronic components, as well as additional temperature control devices, can be connected to the circuit boards and to the metal support substrate to control or regulate the temperature of operation of the components. The integrated package can be hermetically sealed with a lid.
Michael James Liberatore - Lawrenceville NJ Leszek Hozer - West Windsor NJ Attiganal Narayanaswamy Sreeram - Edison NJ Rajan Kumar - Robbinsville NJ Chetna Bindra - Piscataway NJ Zhonghui Hugh Fan - Plainsboro NJ
Assignee:
PowerZyme, Inc. - Monmouth Junction NJ
International Classification:
H01M 816
US Classification:
429 2
Abstract:
Provided is a fuel cell comprising a first compartment, a second compartment and a barrier separating the first and second compartments, wherein the barrier comprises a proton transporting moiety.
Materials To Fabricate A High Resolution Plasma Display Back Panel
Materials for making a plasma display having a transparent front panel spaced from a back panel which is a metal core having layers of a dielectric material extending over and bonded to the core. The materials of which the back panel is made are chosen to form a back panel having a thermal coefficient of expansion compatible with that of the front panel. The dielectric material is made from a green ceramic tape which is bonded to the core and cofired with the core to form the back panel. The materials for the dielectric can be chosen such that the composite TCE of the cofired assembly matches the TCE of the front panel.
Thermal Interface Material And Heat Sink Configuration
Attiganal N. Sreeram - Princeton NJ Brian Lewis - Branford CT Leszek Hozer - Plainsboro NJ Michael James Liberatore - Trenton NJ Gerard Minogue - Kinnelon NJ
Assignee:
Frys Metals, Inc. - Jersey City NJ
International Classification:
H01L 2348
US Classification:
257781, 257779, 257783, 257782, 257784
Abstract:
A thermal interface material for use in electronic packaging, the thermal interface material comprises a solder with relatively high heat flow characteristics and a CTE modifying component to reduce or prevent damage due to thermal cycling. The thermal interface material comprises an active solder that contains indium and an intrinsic oxygen getter selected from the group consisting of alkali metals, alkaline-earth metals, refractory metals, rare earth metals and zinc and mixtures and alloys thereof. Lastly, damage due to an electronic package due to thermal cycling stress is reduced by using an insert in a lid of an electronic device package wherein the insert has a coefficient of thermal expansion that is between about that of the lid and about that of a semiconductor substrate.
George Herbert Needham Riddle - Princeton NJ Roger Casanova Alig - Princeton Junction NJ Aly Fathy - Langhorne PA Attiganal Narayanaswamy Sreeram - Edison NJ Barry Jay Thaler - Lawrenceville NJ Michael James Liberatore - Lawrenceville NJ
An electron gun as for a cathode ray tube includes a plurality of electrodes biased at different potentials to electrostatically shape and focus the one or more electron beams produced thereby. A dynamic focus grid is driven by a substantial ac voltage signal at the horizontal line rate, which signal is undesirably coupled through parasitic capacitance to an intermediate grid located between the dynamic focus grid and the gun anode. A resistive biasing network includes a high value resistance to divide the anode potential to develop bias potential for the intermediate grid and a capacitance to ac couple the intermediate grid to ground potential. The resistance is formed in a single layer ceramic circuit and the capacitance is formed on the single layer ceramic circuit or on the tube neck. The ceramic circuit may be located in the tube neck on or with the electron gun.
Cathode-Ray Tube Having A Focus Mask With Improved Insulator Performance
A color cathode-ray tube (CRT) having an evacuated envelope with an electron gun therein for generating at least one electron beam is provided. The envelope further includes a faceplate panel having a luminescent screen with phosphor elements on an interior surface thereof. A focus mask, having a plurality of spaced-apart first conductive strands, is located adjacent to an effective picture area of the screen. The spacing between the first conductive strands defines a plurality of apertures substantially parallel to the phosphor elements on the screen. Each of the first conductive strands has a substantially continuous insulating material layer formed on a screen facing side thereof. A plurality of second conductive wires are oriented substantially perpendicular to the plurality of first conductive lines and are bonded thereto by the insulating material layer. The insulating material layer comprises a low porosity lead-zinc-borosilicate glass.
Bernard Dov Geller - Princeton NJ, US Michael James Liberatore - Lawrenceville NJ, US Attiganal Narayanswamy Sreeram - Edison NJ, US Barry Jay Thaler - Lawrenceville NJ, US Aly Eid Fathy - Langhorne PA, US
Assignee:
Lamina Ceramics, Inc. - Westampton NJ
International Classification:
H01P001/207 H01P003/16
US Classification:
333208, 333227
Abstract:
Embedded, coupled, shaped waveguide resonators having conductive walls sandwiched between two fired green tape stacks, said conductive walls having apertures therein whose size and location determine the degree of coupling. These waveguides are made by forming openings in a first green tape stack, defining walls and apertures therein, mounting a second green tape stack having a conductive layer thereon thereover and firing the assembly. E-plane probes are inserted in openings in the second green tape stack and connected to microstrip transmission lines on an external surface pf this green tape stack.