Class 205/791.5 - Defects

Subclass of Class 205 - Electrolysis: processes, compositions used therein, and methods of preparing the compositions
Definition: Subject matter which involves detecting undesirable localized
No. of patents: 40
Last issue date: 05/06/2008

Number	Title	Issue Date
7368050	Quantitative transient analysis of localized corrosion The invention provides an electrochemical noise method, apparatus and system for estimating parameters of interest related to corrosion rates of an electrically conductive article, the method comprising: placing a working electrode, a reference electrode, and a coun...	05/06/2008
7225681	Statistical method for identifying microcracks in insulators One embodiment of the invention is a method for evaluating a material such as low-k dielectric, by a stress-generating test tool such as a needle. The evaluation object is shaped as a stack of adhering layers: low-k dielectric, first metal (preferably copper), barri...	06/05/2007
7063988	Circuit for detecting arcing in an etch tool during wafer processing According to one exemplary embodiment, a circuit configured to interface with an etch tool comprises an ESC input for receiving a first signal from the etch tool, where the first signal indicates a magnitude of a chuck current passing through a chuck holding a wafer...	06/20/2006
6884333	Electrochemical system for analyzing performance and properties of electrolytic solutions The invention relates to the analysis of the performance and properties of electrochemical processes, and specifically, to electrolytic solutions and electrode processes. The invention discloses a device and a method for obtaining qualitative and quantitative inform...	04/26/2005
6843904	Inspection and repair of active type substrate An in-substrate selective electrochemical treatment system for finding and repairing pinholes of an active substrate including holding an insulating substrate having a conductive pattern, supplying a predetermined amount of a specified chemical solution to a specifi...	01/18/2005
6620309	Method for monitoring aluminum electrolytic cells A measuring method is provided for monitoring of aluminum electrolysis cells, together with a corresponding measurement arrangement that includes an immersion sensor. In order to obtain reproducible measurements, the bath electrode of the immersion sensor...	09/16/2003
6365034	High throughput electrochemical test for measuring corrosion resistance A high throughput electrochemical test method for determining the resistance to corrosion of a metal article coated with a resinous coating which comprises: (a) making, as the working electrode in an electrochemical cell which also comprises a reference e...	04/02/2002
6328878	Adhesive tape sensor for detecting and evaluating coating and substrate degradation utilizing electrochemical processes A portable and nondestructive adhesive tape corrosion sensor which is utilized under actual field or laboratory conditions in detecting coating and substrate degradation using Electrochemical Impedance Spectroscopy (EIS) of coated or uncoated metal struct...	12/11/2001
6224746	Method and device for testing the quality of a sheet-like element comprising a membrane A method and device for testing the quality of a sheet-like element comprising a membrane are presented. The quality test is limited to a part-area of the sheet-like element. A useful material is fed to one side of the sheet-like element via an outlet ori...	05/01/2001
6162349	Method for package partitioning wall testing The integrity of the dividing partitions walls of a multichamber container can be tested for voids after the filling of the containers. This is particularly useful for multichamber tube containers. These containers can have relatively thin tube divider pa...	12/19/2000
6118280	Method for detecting defects in dielectric film Disclosed are a method and an apparatus for detecting a defect in a dielectric film. The dielectric film is electrified in an electrolyte solution containing a metal in such a manner the dielectric film is charged negative, thereby the metal is deposited ...	09/12/2000
6080293	Electrolytic test machine An electrolytic test machine is used for a corrosion resistance test for a test material comprised of a metal blank and a coating film. The electrolytic test machine is constructed so that an adverse influence, due to chlorine gas generated during a test,...	06/27/2000
6054038	Portable, hand-held, in-situ electrochemical sensor for evaluating corrosion and adhesion on coated or uncoated metal structures A hand-held and flexible corrosion sensor is described that uses electrochemical impedance spectroscopy (EIS, also known as AC impedance) to detect coating degradation and corrosion of coated and uncoated metals. The hand-held and flexible corrosion senso...	04/25/2000
5980711	Electrolytic test machine An electrode is mounted in a vertical manner in an electrolytic liquid in an electrolytic cell. A harmful gas collecting hood is disposed within the electrolytic cell to cover the entire upper portion of the electrode. One end of a bottom surface of the h...	11/09/1999
5972186	Electrolytic test machine An electrolytic test machine includes an electrolytic cell in which an electrolytic liquid is stored so that a test material is immersed in the electrolytic liquid. An electrode is immersed in the electrolytic liquid. A DC power source supplies a current ...	10/26/1999
5882719	Solid tantalum capacitor test A combination of static voltage and sweep voltage tests performed on capacitor grade powders gives a valid prediction of performance of eventual solid electrolyte capacitors incorporating such powders....	03/16/1999
5851376	Catalyst degradation determination apparatus and method A catalyst degradation determination apparatus having O2 sensors provided at the upstream and downstream of a catalyst, detects degradation of the catalyst by, during A/F ratio feed-back control since an engine has been started, comparing an in...	12/22/1998
5820746	Metal surface state evaluation method and semiconductor device production method Metal formed on a semiconductor wafer is brought into contact with ions adapted to corrode the metal, and subjected to constant-current electrolysis using a galvanostat. The electrode potential of the metal is measured. There are obtained (i) the relation...	10/13/1998
5612621	Method for monitoring cracks and critical concentration by using phase angle A method for monitoring cracks in a sample of materials by applying the theory that the phase angle increases in the sample of materials being tested where cracks have formed. The method is performed by preparing a solution capable of forming cracks in th...	03/18/1997
5518601	Extended use planar sensors A planar, solid-state electrochemical oxygen sensor having a substrate, conductive strips deposited on the substrate, and a dielectric layer insulating portions of the conductive strips except those portions which define a working electrode and at least o...	05/21/1996
5505827	Method of detecting carbides in alloy steels by electrochemical polarization An electrolyte such as a saturated picric acid solution in a cell for measuring electrochemical polarization is placed in contact with an alloy steel such as a CrMoV steel which has been subjected to a high-temperature and stress-applied condition, and a ...	04/09/1996
5316633	Method and apparatus for measuring sensitization of structural members A method and system for electrochemically measuring the sensitization to stress corrosion cracking of small pipes of plant structural members in a very short period of time. A micro electrochemical cell for measuring the sensitization is movably disposed ...	05/31/1994
5286357	Corrosion sensors A corrosion sensor (1), apparatus for detecting corrosion of a surface incorporating the sensor, a structural assembly (1,21) incorporating the sensor and method for detecting corrosion of a surface employing the sensor are provided. The sensor comprises ...	02/15/1994
5262034	Electrochemical sensor for monitoring electrochemical potentials of fuel cell components An electrochemical sensor comprised of wires, a sheath, and a conduit can be utilized to monitor fuel cell component electric potentials during fuel cell shut down or steady state. The electrochemical sensor contacts an electrolyte reservoir plate such th...	11/16/1993
5227033	Electrolytic etching of metals to reveal internal quality The internal quality of continuously cast and other steel samples in the form of ingots, billets, blooms, slabs and bars is determined in rapid manner to enable potentially problem-causing casting conditions to be identified and corrected in timely manner...	07/13/1993
5015346	Electrochemical method for defect delineation in silicon-on-insulator wafers An electrochemical method for defect delineation in thin-film SOI or SOS wafers in which a surface of a silicon wafer is electrically connected so as to control the voltage of the surface within a specified range, the silicon wafer is then contacted with ...	05/14/1991
4718992	Test medium and method for detecting phosphorus segregates in metallic material An aqueous electrolytic solution of a molybdate ion and an oxidizing agent is effective to detect phosphorus segregates in a metallic material, particularly cast steel through electrolysis. Segregated phosphorus can be detected by (a) applying a test shee...	01/12/1988
4715218	Method of determining degree of embrittlement of low alloy steel A method of determining the degree of embrittlement of low alloy steel with high accuracy and good reproducibility, comprising the steps of bringing the low alloy steel into contact with an aqueous solution of an aromatic compound having a nitro group and...	12/29/1987
4518464	Method of detecting embrittlement of heat-resisting steel A method of detecting embrittlement of a heat-resisting steel comprises evaluating the brittleness of the heat-resisting steel on the basis of the repassivation current value obtained by (a) connecting the steel as the anode of an anode polarization curve...	05/21/1985
4498960	Electrochemical method for visual detection of nonmetallic surface inclusions in metallic substrates An electrochemical method for fast and non-destructive visual detection of nonmetallic surface inclusions in metallic substrates is provided. The method uses electrode modification techniques, wherein, for example, a monomer is electrochemically polymeriz...	02/12/1985
4473795	System for resist defect measurement A non-destructive test system for determining the number, size and location of pinhole defects in insulative coatings on a semiconductor substrate employing photocathodic current measurement at the semiconductor surface. This current is produced by contac...	09/25/1984
4451970	System and method for eliminating short circuit current paths in photovoltaic devices Systems and methods for detecting and eliminating short circuit current paths through photovoltaic devices of the type including at least one semiconductor region overlying a substrate and a layer of conductive light transmissive material overlying the at...	06/05/1984
4427496	Method for improving the inspection of printed circuit boards An improved method is provided for the visual inspection of printed circuit boards to determine the continuity or discontinuity of the circuits. In the method the circuit boards are treated in an electrolytic bath to cause an electrochemical change in the...	01/24/1984
4217180	Method of determining susceptibility of alloys to stress corrosion cracking Accelerated testing method for determining the susceptibility of alloys to stress corrosion cracking. Test parts are anodized to form an oxide coating thereon. The anodized parts are deformed to a known amount of tensile strain sufficient to rupture the o...	08/12/1980
4190501	Process for measuring internal metal stress An apparatus and procedure for measuring internal metal stress and determining the effectiveness of metal stress-relief treatments. More specifically, an apparatus and procedure for determining the effectiveness of metal stress-relief by heat treatment in...	02/26/1980
4180439	Anodic etching method for the detection of electrically active defects in silicon Electrically active defects, i.e., current-carrying defects or leakage paths in silicon crystals, are detected by an anodization process. The process selectively etches the crystal surface only where the electrically active defects are located when the an...	12/25/1979
4160702	Electrochemical measurement of fatigue damage Testing method for the early detection and assessment of metal fatigue damage prior to the initiation of fatigue cracks. Test parts are anodized to form an oxide coating thereon. The anodized parts are fatigue tested. Microcracks created in the oxide coat...	07/10/1979
4125440	Method for non-destructive testing of semiconductor articles A non-destructive method of mapping damage sites in the surface of a semiconductor article, such as a silicon wafer, establishes an interface between the semiconductor and a dilute acid electrolyte. The semiconductor article is negatively biased with resp...	11/14/1978
4063644	Process for nondestructive inspection A process for the nondestructive inspection of chromium-plated or coated metal parts. The process uses an uncomplicated electrolytic technique to etch selectively the surface of the part to thereby develop indications of thermal damage which are readily d...	12/20/1977
4006063	Method for measuring surface characteristics of metals and metalloids A process applicable to metal and metalloid surfaces for detecting and determining the boundaries of stressed areas and areas exhibiting chemical variations involves ascertaining at a number of points on a surface the electrical potential generated betwee...	02/01/1977

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Class 205/791.5 - Defects