Patent application number | Description | Published |
20110041804 | Multiplexing Drive Circuit For An AC Ignition System - A multiplexing drive circuit for an AC ignition system having a common leg that includes two switches coupled in series, and one or more dedicated legs, wherein each leg includes two switches coupled in series. The multiplexing drive circuit also includes a transformer for each of the one or more dedicated legs, each transformer having a primary winding coupled between one of the one or more dedicated legs and the common leg, and wherein each transformer has a secondary winding coupled in parallel to a spark plug, and a pulse-width modulated (PWM) switch controller configured to operate the common leg and dedicated leg switches to control characteristics of the spark discharge for the spark plug. | 02-24-2011 |
20110080174 | Self Charging Ion Sensing Coil - A self charging ion current sensing circuit is provided. The self charging ion current sensing circuit is coupled to spark generation circuitry, and utilizes the spark plug electrodes as the ion current sensing electrodes. The self charging is achieved by utilizing the spark current during an ignition event to charge an ion bias capacitor. After the ignition event, the charge voltage build up on the ion bias capacitor is used to provide an ion current across the spark plug gap. The ion current is passed through an offset stage that translates the ion current sense voltage to a voltage that can be buffered and amplified from a single power source available in automotive and vehicular applications. The output of the circuit provides tri-state information, including spark current, null current, and linear representation of ion sense current. | 04-07-2011 |
20110255208 | MULTIPLEXING DRIVE CIRCUIT FOR AN AC IGNITION SYSTEM WITH CURRENT MODE CONTROL AND FAULT TOLERANCE DETECTION - A multiplexing drive circuit for an AC ignition system having a common leg that includes two switches coupled in series, and one or more dedicated legs, wherein each leg includes two switches coupled in series. The multiplexing drive circuit also includes a transformer for each of the one or more dedicated legs, each transformer having a primary winding coupled between one of the one or more dedicated legs and the common leg, and wherein each transformer has a secondary winding coupled in parallel to a spark plug, and a pulse-width modulated (PWM) switch controller configured to operate the common leg and dedicated leg switches to control characteristics of the spark discharge for the spark plug. Wherein the switch controller is capable of real time diagnostic checks by monitoring the time at which a spark discharge event takes place. | 10-20-2011 |
20120125287 | Controlled Spark Ignited Flame Kernel Flow in Fuel-Fed Prechambers - A pre-chamber spark plug that includes a shell. Additionally, the pre-chamber spark plug includes an insulator disposed within the shell. In a particular embodiment, a center electrode has a first portion surrounded by the insulator, and a second portion that extends from the insulator into a pre-chamber. The pre-chamber defined by the shell. In a further embodiment, a ground electrode is attached to the insulator. In particular embodiments, the ground electrode is tubular in shape and includes an inner spark surface ring spaced in surrounding relation to the center electrode to create a spark gap, an outer ring attached to the shell, and a plurality of rounded spokes connecting the inner and outer rings. In a particular embodiment, the ground and center electrodes accommodate attachment of precious metal alloys to increase electrode surface life. In another embodiment the ground electrode and insulator is coaxial to the center electrode. | 05-24-2012 |
20130042834 | Controlled Spark Ignited Flame Kernel Flow in Fuel-Fed Prechambers - A pre-chamber spark plug that includes a shell. Additionally, the pre-chamber spark plug includes an insulator disposed within the shell. In a particular embodiment, a center electrode has a first portion surrounded by the insulator, and a second portion that extends from the insulator into a pre-chamber. The pre-chamber defined by the shell. In a further embodiment, a ground electrode is attached to the insulator. In particular embodiments, the ground electrode is tubular in shape and includes an inner spark surface ring spaced in surrounding relation to the center electrode to create a spark gap, an outer ring attached to the shell, and a plurality of rounded spokes connecting the inner and outer rings. In a particular embodiment, the ground and center electrodes accommodate attachment of precious metal alloys to increase electrode surface life. In another embodiment the ground electrode and insulator is coaxial to the center electrode. | 02-21-2013 |
Patent application number | Description | Published |
20090253072 | NANOPARTICLE REVERSIBLE CONTRAST ENHANCEMENT MATERIAL AND METHOD - The invention is to a reversible photobleachable material comprised of nanoparticles of indium gallium oxide or gallium oxide, and a method of exposing a substrate, such as in semiconductor manufacture, using same. | 10-08-2009 |
20100087065 | STABILIZATION OF POLYMER-SILICA DISPERSIONS FOR CHEMICAL MECHANICAL POLISHING SLURRY APPLICATIONS - Chemical mechanical polishing (CMP) compositions and single CMP platen process for the removal of copper and barrier layer material from a microelectronic device substrate having same thereon. The process includes the in situ transformation of a copper removal CMP composition, which is used to selectively remove and planarize copper, into a barrier removal CMP composition, which is used to selectively remove barrier layer material, on a single CMP platen pad. | 04-08-2010 |
20100317150 | ANTIMONY AND GERMANIUM COMPLEXES USEFUL FOR CVD/ALD OF METAL THIN FILMS - Antimony, germanium and tellurium precursors useful for CVD/ALD of corresponding metal-containing thin films are described, along with compositions including such precursors, methods of making such precursors, and films and microelectronic device products manufactured using such precursors, as well as corresponding manufacturing methods. The precursors of the invention are useful for forming germanium-antimony-tellurium (GST) films and microelectronic device products, such as phase change memory devices, including such films. | 12-16-2010 |
20110117751 | NON-SELECTIVE OXIDE ETCH WET CLEAN COMPOSITION AND METHOD OF USE - Composition and method to remove undoped silicon-containing materials from microelectronic devices at rates greater than or equal to the removal of doped silicon-containing materials. | 05-19-2011 |
20120283163 | COPPER CLEANING AND PROTECTION FORMULATIONS - A cleaning composition and process for cleaning post-chemical mechanical polishing (CMP) residue and contaminants from a microelectronic device having said residue and contaminants thereon. The cleaning compositions include novel corrosion inhibitors. The composition achieves highly efficacious cleaning of the post-CMP residue and contaminant material from the surface of the microelectronic device without compromising the low-k dielectric material or the copper interconnect material. | 11-08-2012 |
20130298769 | CARBON PYROLYZATE ADSORBENT HAVING UTILITY FOR CO2 CAPTURE AND METHODS OF MAKING AND USING THE SAME - A particulate form carbon pyrolyzate adsorbent, having the following characteristics: (a) CO | 11-14-2013 |
20140027352 | CARBON ADSORBENT AND PROCESS FOR SEPARATING HIGH-OCTANE COMPONENTS FROM LOW-OCTANE COMPONENTS IN A NAPTHA RAFFINATE STREAM USING SUCH CARBON ADSORBENT - A carbon adsorbent having the characteristics of: a nitrogen micropore volume at 77° K, measured as liquid capacity, that is greater than 0.30 mL/g; a neopentane capacity measured at 273° K and 1 bar, measured as liquid capacity, that is less than 7% of the nitrogen micropore volume, measured as liquid capacity; and an access pore size in a range of from 0.50 to 0.62 nm. Such adsorbent is usefully employed for contacting with hydrocarbon mixtures to adsorb low-octane, linear and mono- or di-substituted alkanes therefrom, and thereby increase octane rating, e.g., of an isomerization naphtha raffinate. Adsorption processes and apparatus are also described, in which the carbon adsorbent can be utilized for production of higher octane rating hydrocarbon mixtures. | 01-30-2014 |
20140298992 | ADSORBENT HAVING UTILITY FOR CO2 CAPTURE FROM GAS MIXTURES - A carbon pyrolyzate adsorbent is described that is selective for carbon dioxide in contact with gas mixtures including carbon dioxide and methane. The adsorbent has a carbon dioxide adsorbent capacity at 1 bar pressure of greater than 50 cm | 10-09-2014 |
20150202593 | CARBON PYROLYZATE ADSORBENT HAVING UTILITY FOR CO2 CAPTURE AND METHODS OF MAKING AND USING THE SAME - A particulate form carbon pyrolyzate adsorbent, having the following characteristics: (a) CO | 07-23-2015 |