Rolff, DE
Haiko Rolff, Dresden DE
Patent application number | Description | Published |
---|---|---|
20080318139 | Mask Blank, Photomask and Method of Manufacturing a Photomask - Mask blanks of the invention include an absorber layer, an anti-reflective layer disposed over the absorber layer, and a hard mask layer disposed over the anti-reflective layer. The absorber layer is absorbent at an exposure wavelength and is reflective at an inspection wavelength. The inspection wavelength is greater than or equal to the exposure wavelength. The anti-reflective layer is not reflective at the inspection wavelength. None of the main constituents of the hard mask layer has an atomic number greater than 41. The mask blank may be a reflective EUVL mask blank or a transparent mask blank. | 12-25-2008 |
20100266939 | Lithographic Mask and Method of Forming a Lithographic Mask - A lithographic mask comprises a first layer including grooves, a second layer including regions, sections and a groove-like structure that encloses the sections. The first and second layers are formed so as to reduce electrical potential differences within the second layer. A method of forming a lithographic mask includes forming first and second layers to dispose the second layer over the first layer, patterning the second layer to comprise sections, a region, and a groove-like structure enclosing the sections, and forming grooves in the first layer at portions not covered by the second layer. The first and second layers are formed to reduce potential differences within the second layers during the step of forming the grooves in the first layer. | 10-21-2010 |
Malte Rolff, Leonberg DE
Patent application number | Description | Published |
---|---|---|
20150155560 | METHOD FOR MANUFACTURING A POLYACRYLONITRILE-SULFUR COMPOSITE MATERIAL - A method is provided for manufacturing a polyacrylonitrile-sulfur composite material, the polyacrylonitrile-sulfur composite material having an sp | 06-04-2015 |
Norbert Rolff, Kerpen DE
Patent application number | Description | Published |
---|---|---|
20090188302 | Leak Detector - A leak detector comprising a base appliance provided with a gas detector, a vacuum pump, and a control device. A sniffer probe is connected to the base appliance. A test leak device containing the supply of test gas is arranged in a separate sub-housing. The sub-housing also contains a temperature sensor, a processor, and a data memory. The processor corrects the measured temperature according to a sample, and modulates the light of a light barrier. The processor is connected to the control device in the base appliance by a data cable. | 07-30-2009 |
20110283769 | LEAK DETECTION METHOD - In the leak detection method, it is provided that a specimen ( | 11-24-2011 |
Norbert Rolff, Horrem DE
Patent application number | Description | Published |
---|---|---|
20090120165 | Sampling Leak Detector - A sampling leak detector which comprises a basic device and a sniffling probe connected thereto via a tube. A visual display is located on the sniffling probe. A tactile indicator is provided in a handle. An acoustic indicator is arranged on the basic device. The detector can be switched to a detection mode in which the color in the visual display changes and the indicator are activated when a predetermined leakage rate is exceeded. The detector can also be switched to a locating mode in which leakage rate information is displayed by means of a bar of variable length and a sound is generated which has a parameter depending on the leakage rate information. | 05-14-2009 |
20090314052 | Method for Calibrating a Mass Spectrometric Sniffing Leak Detector - Usually, a sniffing leak detector must be calibrated for each tracing gas. The calibration comprises ranging of the spectral positions into the mass spectrum and the amplitude height. At least one mass line is determined with a calibrating gas. The mass lines lying between two mass lines and/or between a zero point and a line are determined by interpolation and/or extrapolation. In this manner, a sniffing leak detector can be used for such tracing gases which have not previously been used for calibration purposes. | 12-24-2009 |
20100005861 | SNIFFING LEAK DETECTOR - To achieve a large measurement range from small up to larger leakage rates, a switchover from normal operation to gross operation occurs. In gross operation, the sucked-in gas flow is separated by different throttles, wherein the throttle that leads to the test gas sensor has a low flow rate. This manner of operation prevents a too large quantity of test gas from reaching the sensor surface and contaminating the sensor. In another alternative, in gross operation the test gas flows only across a part of the sensor surface. The other part is flushed. | 01-14-2010 |
20100294026 | SNIFFING LEAK DETECTOR - A sniffing leak detector which comprises a first suction line in a sniffing probe, the line leading to a main device, is provided with a larger second suction line through which gas is sucked in from the sniffing tip by a gas delivery pump. By connecting the second suction line, the distance sensitivity is increased. By disconnecting the second suction line, on the other hand, the sensitivity is increased. Thus, it is possible to first search for leaks by use of a high gas throughput and subsequently exactly determine the leaks under the quantitative aspect by use of a reduced flow. | 11-25-2010 |
20110100097 | Leakage Seeker - A leak detector having a pre-vacuum feed pump, a gas detector and a flow sensor. The detector also includes a buffer volume and a restrictor to be arranged between the feed pump and the flow sensor. This protects the flow sensor against pressure surges generated by the feed pump. | 05-05-2011 |
20150014523 | METHOD FOR DETERMINING THE MAXIMUM MASS PEAK IN MASS SPECTROMETRY - A fast method for determining molecular mass using mass spectrometry has the following steps: specifying a first adjusting value (M1) of the mass spectrometer, recording the associated signal amplitude (A1), specifying a second adjusting value (M2) which is different to the first, measuring the associated second signal amplitude (A2), specifying a third adjusting value (M3) which is different to the first (M1) and the second (M2) adjusting value, measuring the associated third signal amplitude (A3), determining a quadratic function containing the measured amplitude values as y-values and the specified adjusting values as x-values, determining the maximum of the quadratic function, wherein the searched adjusting value is determined from the x-value of the maximum. | 01-15-2015 |
20150028743 | DEVICE FOR SUPPLYING VOLTAGE TO THE CATHODE OF A MASS SPECTROMETER - A simplified device for voltage supply of the cathode of a mass spectrometer comprises a push-pull transformer, wherein, apart from the normal rectifier diodes ( | 01-29-2015 |
Norbert Rolff, Kerpen-Horren DE
Patent application number | Description | Published |
---|---|---|
20080223112 | Sniffing Probe - Sniffing probes are frequently used for detecting leaking gases in difficult-to-access and poorly visible environments, for example for detecting a gas leakage in a cooling device of a motor vehicle. It is an object of the invention to improve handling of the sniffing probe. According to the invention, the object is achieved by providing an illumination device ( | 09-18-2008 |
Randolf Rolff, Kerpen DE
Patent application number | Description | Published |
---|---|---|
20090013766 | Method and device for detecting leaks - In leak detection, the signal generated by a test gas is superposed by interferences which fade as the vacuum generation in a container proceeds. Depending on the negative slope of the volume signal (MS), a lower indication limit (AG) is calculated. Upon activation of a zero function, the volume signal (MS) is not reduced to zero but only to the level of the indication limit (AG). Any exceeding of the indication limit is identified as a leak. Thus, the maximum sensitivity of the leak detection is guaranteed at any time. | 01-15-2009 |
20090188302 | Leak Detector - A leak detector comprising a base appliance provided with a gas detector, a vacuum pump, and a control device. A sniffer probe is connected to the base appliance. A test leak device containing the supply of test gas is arranged in a separate sub-housing. The sub-housing also contains a temperature sensor, a processor, and a data memory. The processor corrects the measured temperature according to a sample, and modulates the light of a light barrier. The processor is connected to the control device in the base appliance by a data cable. | 07-30-2009 |
Randolf Rolff, Kerpen-Horrem DE
Patent application number | Description | Published |
---|---|---|
20080223112 | Sniffing Probe - Sniffing probes are frequently used for detecting leaking gases in difficult-to-access and poorly visible environments, for example for detecting a gas leakage in a cooling device of a motor vehicle. It is an object of the invention to improve handling of the sniffing probe. According to the invention, the object is achieved by providing an illumination device ( | 09-18-2008 |
20090212960 | Sniffing Leak Detector - The sniffing leak detector comprises a sniffing probe, a suction device and gas detector. An operator-activated switch initiates the beginning of a measuring operation. The switch starts a time measurement, wherein an alarm signal is generated by a signal transmitter at the end of a predetermined measuring period. The sniffing leak detector allows for an operator guidance from measuring point (MP) to measuring point, wherein the measuring period is predetermined and an adherence to the measuring period is monitored. | 08-27-2009 |
20120031162 | METHOD FOR FUNCTIONALLY TESTING A LEAK DETECTOR - In order to functionally test a leak detector ( | 02-09-2012 |
Randolf Paul Rolff, Horrem DE
Patent application number | Description | Published |
---|---|---|
20090314052 | Method for Calibrating a Mass Spectrometric Sniffing Leak Detector - Usually, a sniffing leak detector must be calibrated for each tracing gas. The calibration comprises ranging of the spectral positions into the mass spectrum and the amplitude height. At least one mass line is determined with a calibrating gas. The mass lines lying between two mass lines and/or between a zero point and a line are determined by interpolation and/or extrapolation. In this manner, a sniffing leak detector can be used for such tracing gases which have not previously been used for calibration purposes. | 12-24-2009 |
20110100097 | Leakage Seeker - A leak detector having a pre-vacuum feed pump, a gas detector and a flow sensor. The detector also includes a buffer volume and a restrictor to be arranged between the feed pump and the flow sensor. This protects the flow sensor against pressure surges generated by the feed pump. | 05-05-2011 |