Lesker U Live! is series of free webinars spanning many topics taught by leading vacuum experts.
Lesker U provides the following:
- High-value vacuum expert training
- A solid base of understanding surrounding vacuum technology
- Deep dives on specific vacuum technology topics
Pressure measurement for High & Ultra High Vacuum Applications
Like vacuum pump technology, the vast differences in molecular density at atmosphere and high or ultra-high vacuum require a multitude of pressure measurement techniques. This course describes a wide range of pressure measurement approaches as well as the pros and cons of each device. Certain process-specific characteristics are identified that might guide the user on the selection of the suite of instruments required to cover large pressure ranges.
Duration: 1 Hour(s)
Expert(s): Evan Sawyer
Evan Sawyer is the Global Product Manager for Instrumentation and Pressure Measurement at the Kurt J Lesker Company. With a background in Chemistry, Evan is one of KJLC's product experts and specializes in chemical compatibility / reactivity, pressure measurement, pressure control, and gas analysis. Evan's talents have enabled him to contribute to many different system designs and upgrades for his global clientele. His skills also include troubleshooting instrumentation issues and the creation of technical documentation for his products to further assist the scientific community.
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REGISTERVacuum Pumps for High Vacuum Applications
There is no one vacuum pump technology that can work from atmosphere down to high vacuum (pressures in the range of 10-6 Torr) and below. The achievement of low pressures in research or industrial vacuum systems requires a well-engineered combination of pumping technologies. The mechanisms to pump gases at high molecular densities are quite different from the techniques needed to move molecules once their numbers are substantially reduced. In this webinar we will discuss some of the measures required to achieve high vacuum and review the range of tools designed specifically to get to a low base pressure. Simple modeling will be introduced which will illustrate critical pressure ranges during pump down and system-specific characteristics that must be considered when determining pump down time and base pressures. The course will include details on the operating principles of rotary vane and dry scroll pumps, as well as turbomolecular, cryopumps, and oil-based diffusion pumps required to reach high vacuum.
Duration: 1 Hour(s)
Expert(s): Evan Sawyer
Evan Sawyer is the Global Product Manager for Instrumentation and Pressure Measurement at the Kurt J Lesker Company. With a background in Chemistry, Evan is one of KJLC's product experts and specializes in chemical compatibility / reactivity, pressure measurement, pressure control, and gas analysis. Evan's talents have enabled him to contribute to many different system designs and upgrades for his global clientele. His skills also include troubleshooting instrumentation issues and the creation of technical documentation for his products to further assist the scientific community.
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REGISTERIntroduction to High Power Impulse Magnetron Sputtering (HiPIMS)
This course focuses on the theory and practice of High-Power Impulse Magnetron Sputtering (HiPIMS). The theoretical side this course covers how HiPIMS differs from other sputtering techniques, the functionalities of a HiPIMS supply, and process parameters of interest. The practical content will be going over a basic HiPIMS process and discuss applications where HiPIMS has been shown to be a beneficial technique. The class is suitable for researchers with some background with the sputtering technique and who are wondering if HiPIMS might be suitable for their application.
Duration: 1 Hour(s)
Expert(s): Nick Franzer
Nick Franzer is the Process Engineer in our Process Equipment Division for the Kurt J. Lesker Company. Nick's focus within KJLC is on the development of PVD technologies and processes to deposit an optimal film for a wide variety of applications. Nick has championed the integration of the novel High Power Impulse Magnetron Sputtering technology (HiPIMS) with deposition systems and, from sharing his technical experience with HiPIMS, has assisted researchers around the world to quickly master the HiPIMS process.
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REGISTERCharacterization & Simple Modeling of Vacuum System Performance
Understanding the performance of a vacuum system can provide insights into the quality and repeatability of processes done in vacuum. There are several factors which can result in large differentials between what a vacuum system was designed to accomplish, on paper, and what can be achieved empirically. In this 1-hour webinar we will discuss a few simple tests that can be used to effectively characterize the performance of a vacuum system. In addition, we will review the basic equations that relate ultimate pressure, gas load, chamber volume, cleanliness, and pumping speed. We will also discuss tactics to optimize vacuum system performance and take questions from participants on their specific vacuum system issues.
Duration: 1 Hour(s)
Expert(s): J.R. Gaines
J.R. Gaines is the Technical Director of Education for the Kurt J. Lesker Company, (Jefferson Hills, PA). The Lesker Company is a global scientific equipment manufacturer supplying materials and tools for vacuum-enabled innovation. Gaines has more than 40 years of experience in the research, development and commercialization of advanced materials technologies including superconductivity, semiconductors, cryogenics, space simulation, energy generation, energy conversion and storage. His experience includes vacuum systems, thin film deposition, inorganic chemistry, nanotechnology, and advanced ceramic processing.
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REGISTERIntroduction to Pressure Control for Vacuum Systems, featuring Mass Flow Controllers
The control of pressure in vacuum systems can be critical to the achievement of process parameters necessary for certain vacuum-enabled processes. While application like thin film deposition by thermal and e-beam evaporation are enhanced by extremely low operating pressures, other techniques, like sputtering and certain chemical processes, can only be accomplished at pressures which are significantly HIGHER than the base pressure achievable by a high vacuum pumping system. The control of pressure in vacuum can be achieved by a variety of techniques. In this webinar several techniques will be described, with examples, to control operating pressure in vacuum. Both manual and automated techniques will be discussed as they apply to various applications.
Duration: 1.25 Hour(s)
Expert(s): Evan Sawyer
Evan Sawyer is the Global Product Manager for Instrumentation and Pressure Measurement at the Kurt J Lesker Company. With a background in Chemistry, Evan is one of KJLC's product experts and specializes in chemical compatibility / reactivity, pressure measurement, pressure control, and gas analysis. Evan's talents have enabled him to contribute to many different system designs and upgrades for his global clientele. His skills also include troubleshooting instrumentation issues and the creation of technical documentation for his products to further assist the scientific community.
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REGISTERDetecting Leaks in Vacuum Systems
Leaks are the bane of vacuum systems. Leaks are one of the principal causes that inhibit the achievement of optimal base pressures. There are several approaches available to detect leaks of various sizes which do not involve expensive leak detection tools. In this course the methods to quantify leaks and a general approach to detection will be presented. In addition, specific techniques to detect leaks in rough, medium, high and ultra-high vacuum will be detailed. The use of helium-based leak detectors as well as the use of residual gas analysis for finding very small leaks will also be highlighted.
Duration: 1 Hour(s)
Expert(s): J.R. Gaines
J.R. Gaines is the Technical Director of Education for the Kurt J. Lesker Company, (Jefferson Hills, PA). The Lesker Company is a global scientific equipment manufacturer supplying materials and tools for vacuum-enabled innovation. Gaines has more than 40 years of experience in the research, development and commercialization of advanced materials technologies including superconductivity, semiconductors, cryogenics, space simulation, energy generation, energy conversion and storage. His experience includes vacuum systems, thin film deposition, inorganic chemistry, nanotechnology, and advanced ceramic processing.
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REGISTERDry Vacuum Pumps for Reduced Contamination & the Oil-Free Production of Vacuum
Oil contamination introduces an unwanted variable in vacuum processes which can ruin research results and create the need for an extensive cleaning of a vacuum system. Contamination resulting from backstreamed vapors from oil-sealed vacuum pumps is increasingly an issue that must be mitigated to produce pristine vacuum environments. Removal of oil contamination may require complete disassembly and other heroic measures to renew all vacuum-facing surfaces and return a system to pristine condition. A range of oil-free vacuum pumps have been developed for rough, high, and ultra-high vacuum. These pumps, including dry scroll, screw and roots pumps, for rough vacuum, as well as turbomolecular, cryopump, and various solid-state getters, for high and ultra-high vacuum, provide extremely clean routes for the production of vacuum. In this brief introduction, the specific pumping mechanisms, advantages, and drawbacks, of various dry pumping technologies will be discussed and a few example applications will be featured.
Duration: 1 Hour(s)
Expert(s): Evan Sawyer
Evan Sawyer is the Global Product Manager for Instrumentation and Pressure Measurement at the Kurt J Lesker Company. With a background in Chemistry, Evan is one of KJLC's product experts and specializes in chemical compatibility / reactivity, pressure measurement, pressure control, and gas analysis. Evan's talents have enabled him to contribute to many different system designs and upgrades for his global clientele. His skills also include troubleshooting instrumentation issues and the creation of technical documentation for his products to further assist the scientific community.
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REGISTERQuartz Crystal Microbalance (QCM) for Thin Film Deposition Process Monitoring
Quartz Crystal Microbalances (QCM) are devices that can monitor and control the deposition rate of evaporation, sputtering, and other thin film deposition processes in real time. QCM’s are highly precise mass balances that can measure increases in weight on a scale necessary to determine the rate at which atoms or molecules are adsorbed onto a substrate as a thin film grows. They can have an accuracy on the nanogram or microgram scale. This means they can resolve film thickness on the scale of tens of nanometers up to several microns. The QCM is made up of several components including an electroded quartz crystal, a temperature-controlled crystal holder, an oscillator and a controller which reads changes in oscillation, and stores process parameters. In this lecture, we will highlight each of these components, compare some of the more common options, and describe how these components work together for precise thin film deposition monitoring and control.
Duration: 1 Hour(s)
Expert(s): Evan Sawyer
Evan Sawyer is the Global Product Manager for Instrumentation and Pressure Measurement at the Kurt J Lesker Company. With a background in Chemistry, Evan is one of KJLC's product experts and specializes in chemical compatibility / reactivity, pressure measurement, pressure control, and gas analysis. Evan's talents have enabled him to contribute to many different system designs and upgrades for his global clientele. His skills also include troubleshooting instrumentation issues and the creation of technical documentation for his products to further assist the scientific community.
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REGISTER
