Blogs
Advantages of Measuring Semiconductor Thin Film Thickness with Capacitance
Semiconductor Thin Films: Measuring Thickness with Capacitance In the semiconductor industry, thin films are deposited onto silicon and other wafer materials one atomic layer at a time. The thickness of these extremely thin coatings is important because thin-film thickness affects the wafer’s electrical, optical, and mechanical properties. With semiconductors, either conductive metallic films or non-conductive metal oxide films are deposited. There are two main thin-film coating methods, chemical vapor deposition (CVD) and physical vapor deposition (PVD), both of which use a variety of processes. Because the coatings for semiconductor wafers are so thin, thickness measurement require a high degree [...]
CEMENT BOARD QUALITY CONTROL
Cement backer board is used as underlayment for tile floors, walls and counter tops. It is also used as exterior sheathing and in exterior stucco systems. Cement backer board has proven to be more durable than virtually any other underlayment if quality control and thickness is maintained. The Problem: A major cement board manufacturer was faced with the challenge to improve a board production line throughput and decrease the amount of waste in the process. Too thin of cement board material weakens it structurally, while board that is too thick wastes material and resources, as well as drives up production costs. [...]
Vitrek Test & Measurement Products
High Voltage Test & Measurement Solutions Hipot & Ground Bond Testers View Products Power Analyzers View Products High Voltage Measurement View Products High Voltage Switching/Cable Testing View Products Additional Products IR Tester DC Electronic Load Test Automation Software High-Voltage Electrical Safety & Compliance Solutions 95X Series Electrical Safety Hipot Testers Demanding applications call for the high power, high resolution 95X Series Hipot & Ground Bond Testers. With up [...]
How Often Should Vibration Analysis Be Performed?
How Often Should Vibration Analysis Be Performed? Once a customer takes delivery of a PBS system and learns how to use it, the next logical question is: “How often should we use it?” At a minimum, your approved maintenance program (whether it’s a program developed by your operation, or the maintenance procedures outlined by the engine/airframe manufacturer) will tell you about the intervals at which to perform a vibration analysis. Usually, there is a procedure to specify how an engine vibration analysis and balance need be only completed when squawked by a pilot or after the completion of maintenance work [...]
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Contact vs. Non-Contact Measurement and Linear Displacement Sensors
Contact vs. Non-Contact Measurement and Linear Displacement Sensors Linear displacement sensors are used to measure the distance between two points or two plane surfaces. They use various technologies, but there are two basic types: contact and non-contact. As their names suggest, contact sensors make physical contact with the object that is being measured and non-contact sensors do not. This is an obvious but important difference, but there is much more to consider. Non-contact measurement is faster than contact measurement, especially for applications with high sampling rates. Because contact-type devices must touch and then traverse the object, measurement is slower. [...]
Capacitance Sensors vs. Eddy Current Sensors Application Note
Capacitance Sensors vs. Eddy Current Sensors Application Note Capacitance sensors and Eddy current sensors are both used for non-contact measurements. Capacitive probes use electric fields to measure the distance from the sensor face to the surface of a target that is typically conductive and grounded. Eddy current probes use an alternating AC current to induce a magnetic field in a conductive target instead. In turn, the induced magnetic field produces a back magnetic field that is proportional to the gap between the probe face and the target. In a recent application note, MTI Instruments examines the differences between capacitance [...]
Press Release: Barcode Scanner Adds Functionality to Vitrek’s QT Enterprise Electrical Safety Testing Automation Software
Barcode Scanner Adds Functionality to Vitrek’s QT Enterprise Electrical Safety Testing Automation Software QT Enterprise software facilitates test sequence setup, report creation and data archiving; SQL database of test procedures and results accessible from multiple PCs; Barcode scanner input automatically loads and runs test sequences […]
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