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Searching: chemistry





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Patent # Description
US-6,165,795 Methods for performing fibrinogen assays using dry chemical reagents containing ecarin and magnetic particles
A method of performing a fibrinogen assay is provided using an assay reagent containing ecarin to give an assay that is insensitive to the presence of heparin...
US-6,165,695 Thin resist with amorphous silicon hard mask for via etch application
A method of forming a via structure is provided. In the method, a dielectric layer is formed on an anti-reflective coating (ARC) layer covering a first metal...
US-6,162,645 Determination of % glycated hemoglobin
A glycated hemoglobin assay utilizes a simple procedure for the determination of standardized %GHb in whole blood samples correlated to the Diabetes Control and...
US-6,162,587 Thin resist with transition metal hard mask for via etch application
A method of forming a via structure is provided. In the method, a dielectric layer is formed on an anti-reflective coating (ARC) layer covering a first metal...
US-6,159,863 Insitu hardmask and metal etch in a single etcher
A method of manufacturing a semiconductor wafer wherein a layer of hardmask material is formed on the surface of a metal layer formed on a layer of interlayer...
US-6,158,996 Screw rotor set
Known designs of single-thread screw rotors in single-piece cast iron constructions having wrap angles of >720 degrees with balancing cavities on the face of...
US-6,158,244 Method of producing optical quality glass having a selected refractive index
Optical quality glass having a selected refractive index is produced by a two stage drying process. A gel is produced using sol-gel chemistry techniques and...
US-6,156,905 Deoxy epothilones and intermediates utilized in the process for preparing epothilones
The invention relates to a process for the production of epothilones and intermediate products within the process. Epothilones A and B are natural substances, which...
US-6,156,181 Controlled fluid transport microfabricated polymeric substrates
Microfluidic devices are provided for the performance of chemical and biochemical analyses, syntheses and detection. The devices of the invention combine precise...
US-6,156,007 Apparatus for whole-body hyperthermia
An apparatus for use in whole body hypothermia includes a dialyzer having a blood side and a dialysate side separated by one or more dialysis membranes. A blood...
US-6,153,744 Nucleoside derivatives with photolabile protective groups
The invention relates to nucleo-side derivatives with photo-unstable protective groups of the general formula (I) ##STR1## in which R.sup.1 is H, NO.sub.2,...
US-6,153,514 Self-aligned dual damascene arrangement for metal interconnection with low k dielectric constant materials and...
A method of forming a self-aligned dual damascene structure in a semiconductor device arrangement forms a first low k dielectric material over an underlying...
US-6,153,437 Method for sequential chemical treatment of less than milligram quantities of a plurality of chemical samples
A cassette chemical immobilization and treatment method enables the performance of various complex chemistries with minimal human intervention, near-zero dead...
US-6,153,398 Method to identify specific inhibitors of IMP dehydrogenase
This invention relates to methods to identify specific inhibitors of the purine nucleotide synthesis enzyme, IMP dehydrogenase (IMPDH). IMPDH is an essential...
US-6,151,517 Method and apparatus for noninvasive quantitative measurement of blood analytes
A method and apparatus for performing quantitative noninvasive measurement of blood analytes, includes correction for measurement interference caused by pulse...
US-6,150,548 Linkers
The invention relates to a compound having the formula I ##STR1## wherein R.sup.1 is hydroxy, (1-6C)alkoxy or NR.sup.4 R.sup.5, R.sup.4 and R.sup.5 being...
US-6,149,508 Chemical mechanical planarization system
A chemical mechanical planarization tool that reduces a volume of polishing chemistry used in a wafer polishing process includes a rinse bar (87) for removing...
US-6,149,211 Inclusion of tooth whitening oxidation chemistries into slow releasing food products
A solid tooth whitening composition in the form a table, gum, candy, or the like, is formed by combining carbamide peroxide with a non-hygroscopic sweetener base...
US-6,147,175 Crosslinked biological products, process for obtaining such products, and their use as removers
The invention relates to the field of biological chemistry, and to polysaccharides in particular. Specifically, it concerns biological products obtained as a...
US-6,146,948 Method for manufacturing a thin oxide for use in semiconductor integrated circuits
A method for forming a gate dielectric having different thickness begins by providing a substrate (12). A sacrificial oxide (14) is formed overlying the...
US-6,146,477 Metal alloy product and method for producing same
A method for producing a cast aluminum alloy article having high strength and/or toughness is provided. The method includes providing a molten aluminum alloy,...
US-6,143,648 Method for forming an integrated circuit
A method for forming void free tungsten plug contacts (56a-56c) begins by etching a contact opening (55a-55c) using a C.sub.2 F.sub.6 and CHF.sub.3 chemistry....
US-6,140,638 Bandpass reactive collision cell
A method of reducing isobaric interferences by transmitting ions from an ion source through an ion transmission device, typically a quadrupole collision cell,...
US-6,140,218 Method for fabricating a T-shaped hard mask/conductor profile to improve self-aligned contact isolation
The present invention provides a method of fabricating a T-shaped hard mask/conductive pattern profile and a process of etching a self-aligned contact opening...
US-6,140,023 Method for transferring patterns created by lithography
A lithographic process for fabricating sub-micron features is provided. A silicon containing ultra-thin photoresist is formed on an underlayer surface to be...
US-6,137,280 Universal power manager with variable buck/boost converter
A universal power manger capable of power converting a universal range of unregulated power inputs into a high-resolution programmable regulated (constant)...
US-6,136,649 Method for removing anti-reflective coating layer using plasma etch process after contact CMP
The present invention provides a method for selectively removing anti-reflective coating (ARC) from the surface of a dielectric layer over the surface of a...
US-6,136,276 Flexible vessel and frame for microwave assisted chemistry
A self venting sealable vessel system for microwave assisted chemistry is disclosed. The system includes a vessel formed of a microwave-transparent material, one...
US-6,136,233 Hydrogen peroxide based ECL
An electrochemiluminescence (ECL)-based assay for the quantitation of classical clinical chemistry analytes, where glucose, ethanol, carbon dioxide, cholesterol,...
US-6,134,458 Light probe for a near-infrared body chemistry measurement instrument
A light probe method and apparatus is provided for an infrared body chemistry measurement instrument. The light probe includes an illumination ring of a...
US-6,133,628 Metal layer interconnects with improved performance characteristics
Two patterned metal layers are interconnected by forming a through-hole in one or more insulating layers, employing an etch process minimizing the formation of...
US-6,133,436 Beads bound to a solid support and to nucleic acids
Novel compositions comprised of at least one bead conjugated to a solid support and further conjugated to at least one nucleic acid and preferred methods for...
US-6,133,139 Self-aligned composite insulator with sub-half-micron multilevel high density electrical interconnections and...
The present invention relates generally to a new sequence of methods and materials to improve the process yield and to enhance the reliability of multilevel...
US-6,132,790 Carotenoid composition
The invention is to a carotenoid composition comprising: a) a carotenoid in an oil solvent wherein the weight of carotenoid in the carotenoid composition is up to...
US-6,132,513 Process chemistry resistant manometer
A manometer resistant to chemical change caused by process chemistry used in a plasma processing chamber is provided. The manometer includes a pressure sensitive...
US-6,130,166 Alternative plasma chemistry for enhanced photoresist removal
A CF.sub.4 /H.sub.2 O.sub.2 plasma is used to remove residues remaining after an ashing step. On a substrate, a layer of photoresist is formed over an underlying...
US-6,127,258 Method for forming a semiconductor device
In accordance with embodiments of the present invention a trench-level dielectric film (26) and a via-level dielectric film (24) are formed overlying a...
US-6,127,070 Thin resist with nitride hard mask for via etch application
A method of forming a via structure is provided. In the method, a dielectric layer is formed on an anti-reflective coating (ARC) layer covering a first metal...
US-6,126,670 Cordless surgical handpiece with disposable battery; and method
A surgical procedure is disclosed utilizing a cordless surgical handpiece powered from a sterile battery pack that contains a battery in condition for immediate...
US-6,125,131 Laser system utilizing sorbent-based gas storage and delivery system
A laser system utilizing a fluid as the excitatory medium for stimulated light emission, wherein the fluid is supplied from a sorbent-based fluid storage and...
US-6,124,582 Pressure sensing reaction vessel for microwave assisted chemistry
A microwave vessel system for external and noninvasive pressure monitoring and control is disclosed. The system comprises a reaction vessel formed of a material...
US-6,124,445 Phosphotriester oligonucleotides, amidities and method of preparation
Oligonucleotides having bioreversible phosphate blocking groups can be used as pro drugs for the oligonucleotides. The bio-reversible blocking groups can be...
US-6,124,171 Method of forming gate oxide having dual thickness by oxidation process
Transistors are formed on the substrate having two different thickness' of gate oxides. A silicon nitride mask is used to protect one of the gate oxides while...
US-6,121,488 Quenching reagents for solution phase synthesis
A method for enhancing the purity of a desired compound comprising: Step (a) treating a crude reaction product which contains at least one desired compound, unreacted...
US-6,121,418 PNA synthesis using a base-labile amino protecting group
PNA synthesis using a base-labile amino protecting group Processes are described for preparing PNA oligomers, ##STR1## in which R.sup.0 is hydrogen,...
US-6,120,678 Desalting adjunct chemistry
Improved performance in the phase separation of aqueous brines from hydrocarbons within an electrostatic desalter operation is obtained by the addition to the...
US-6,117,786 Method for etching silicon dioxide using fluorocarbon gas chemistry
A semiconductor manufacturing process wherein deep and narrow 0.6 micron and smaller openings are plasma etched in doped and undoped silicon oxide. The etching...
US-6,117,391 Cup handling subsystem for an automated clinical chemistry analyzer system
The present invention relates to a cup handling subsystem for an automated clinical chemistry analyzer system which includes a nestable sample cup for holding...
US-6,114,250 Techniques for etching a low capacitance dielectric layer on a substrate
A method for etching through a low capacitance dielectric layer in a plasma processing chamber. The low capacitance dielectric layer is disposed below a hard...
US-6,113,983 Method of forming metallic and ceramic thin film structures using metal halides and alkali metals
A new low temperature method for nanostructured metal and ceramic thin film growth by chemical vapor deposition (CVD) involves the use of a low pressure co-flow...
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