Sheet Metal Monitoring
Sheet Metal Monitoring Automotive Sheet Metal Monitoring Thickness Description Introduction: When sheet metal is formed in a continuous process it needs monitoring during the actual feed prior to machining or forming to prevent defects and scrap.  One way to accomplish this is to use a laser sensor to measure the thickness. Problem: A major electrical equipment manufacturer needed a way to monitor the incoming material just prior to shearing and forming. The device needed to be robust, non-contact, reliable, accurate, and fast. The client would be using their data acquisition [...]
Wire Bonding
Wire Bonding Semiconductor Wire Bonding Level Description Introduction What is Wire Bonding? Wire bonding is a critical semiconductor manufacturing process that creates electrical connections between integrated circuits (ICs) and their packaging substrates. This wire bonding technique uses ultra-thin bond wires, typically made of gold or aluminum, to establish reliable electrical pathways in microelectronics applications. Understanding Wire Bond Fundamentals A typical wire bond consists of bonded wire connecting a die pad to a substrate pad on a PC board. The bond wire diameter varies between 18 and 50 microns, with 25 microns [...]
GaAs Substrate Thickness Measurement
Semiconductor Gaas Substrate Thickness Measurement Thickness Description Measuring Thickness of Wafers with Different Chemistries Introduction:  Silicon wafers are ordinarily highly conductive and easy to measure with standard capacitive displacement sensors (See MTI's Proforma 300i). Measuring the thickness of GaAs wafers that have high bulk resistivity (>10k Ohm/cm) is a little more difficult because the wafers act as non-conductive insulators in a capacitive sensor's measuring field. Fortunately, MTI has a solution to this problem. Solution:  It’s possible to measure the thickness and TTV of high resistivity semiconducting wafers (like GaAs) using non-contact [...]
Photolithography Using Capacitance Sensors
Photolithography Using Capacitance Sensors Semiconductor Photolithography Using Capacitance Sensors Positioning Description When it comes to photolithography, how accurate are our sensors? Accurate enough to measure this: ​   Photo by D. Carr and H. Craighead, Cornell The world's smallest guitar is 10 micrometers long -- about the size of a single cell -- with six strings each about 50 nanometers, or 100 atoms, wide. Made by Cornell University researchers from crystalline silicon, it demonstrates a new technology for a new generation of electromechanical devices. Even the world’s smallest guitar’s 2 micron [...]
Adding a Digital Panel Meter to MTI Analog Output Products
Adding a Digital Panel Meter to MTI Analog Output Products Consumer Electronics Electronics Parts Profiling Thickness Description Some MTI Products with Analog outputs, Accumeasure 9000 and Microtrak 3 laser How To Use Digital Displays with Analog Outputs MTI Microtrak 3 Lasers and some of our Accumeasure amplifiers such as the Accumeasure 9000 only have analog outputs. If you wish to add a digital display, then the Lascar Panel pilot © makes a nice cost effective (~ $110) addition - Fig 1. These Digital panel meters have both 1 [...]
Case-In-Point: Step Height Measurement (Thickness) of Copper Foil or EV Battery Film on a Roller Rig GalleryCase-In-Point: Step Height Measurement (Thickness) of Copper Foil or EV Battery Film on a Roller Rig
Application Notes-MTI, Brand-MTI, Industry-Automotive, Industry-Battery, Industry-Compliance Testing, Industry-Consumer Products, Industry-Sensors, Industry: Transportation, Products-MTI-Capacitance
Case-In-Point: Step Height Measurement (Thickness) of Copper Foil or EV Battery Film on a Roller Rig
Step Height Measurement (Thickness) of Copper Foil or EV Battery Film on a Roller Rig Leverage MTI Instruments’ digital Accumeasure system to measure the thickness of the material used as anode and cathode plates in rechargeable Li-Ion battery cells Many roll-to-roll finishing processes typically use a calender, or series of hard pressure rollers, to deliver smooth, high-quality products of plastic, textile, or paper (Fig 1). Ensuring a consistent material thickness, however, depends on the ability to monitor, and maintain, a precise gap between rollers. This application note describes a quick and easy means for roller gap measurement. Introduction [...]
WAFER MEASUREMENT – UNGROUNDED
Industry Semiconductor Applications Wafer Measurement – Ungrounded Measurement Type Metrology Description MTI Instruments Inc. has developed a thickness measurement device that eliminates the effect of varying target conductivity. Called the Push-Pull probe, it’s a unique version of the AccumeasureTM amplifier series. This special design provides accurate surface information for wafer bow and warp. Bow is the deviation of the center point of the median surface of a free, un-clamped wafer from the median surface to the reference plane. Where, the reference plane is defined by three corners of equilateral triangle. This [...]
PHOTOLITHOGRAPHY USING CAPACITANCE SENSORS
Industry Semiconductor Applications Lithography Optics Position Focus Measurement Type Positioning Description When it comes to photolithography, how accurate are our sensors? Photo by D. Carr and H. Craighead, Cornell - The world’s smallest guitar is 10 micrometers long — about the size of a single cell — with six strings each about 50 nanometers, or 100 atoms, wide. Made by Cornell University researchers from crystalline silicon, it demonstrates a new technology for a new generation of electromechanical devices. Even the world’s smallest guitar’s 2 micron [...]
Case-In-Point: High-Accuracy Capacitive Thickness Measurement Optimizes Li-Ion EV Battery Plate Qualities GalleryCase-In-Point: High-Accuracy Capacitive Thickness Measurement Optimizes Li-Ion EV Battery Plate Qualities
Application Notes-MTI, Brand-MTI, Industry-Automotive, Industry-Battery, Industry-Compliance Testing, Industry-Consumer Products, Industry-Electronics, Industry-Manufacturing, Products-MTI-Capacitance, Z-REPUB, z1
Case-In-Point: High-Accuracy Capacitive Thickness Measurement Optimizes Li-Ion EV Battery Plate Qualities
High-Accuracy Capacitive Thickness Measurement Optimizes Li-Ion EV Battery Plate Qualities EV Battery manufacturers need to measure EV battery plate thickness with a high degree of precision (repeatable <2um accuracy and resolution) to optimize manufacturing efficiencies while maintaining uniform cell capacity and minimizing waste. The MTI Accumeasure System provides an effective means of monitoring plate thickness achieving sub 2um accuracy with high repeatability Introduction The rapidly expanding demand for electric vehicles is driving advances in the production of rechargeable cells that comprise the first stage in the composition of EV battery packs. Individual Li-Ion cells are combined to form [...]
MTI App Note: Step Height Measurement (Thickness) of Copper Foil or EV Battery Film on a Roller Rig GalleryMTI App Note: Step Height Measurement (Thickness) of Copper Foil or EV Battery Film on a Roller Rig
Application Notes-MTI, Brand-MTI, Industry-Consumer Products, Industry-Manufacturing, Products-MTI-Capacitance, z1
MTI App Note: Step Height Measurement (Thickness) of Copper Foil or EV Battery Film on a Roller Rig
Step Height Measurement (Thickness) of Copper Foil or EV Battery Film on a Roller Rig Leverage MTI Instruments' digital Accumeasure system to measure the thickness of the material used as anode and cathode plates in rechargeable Li-Ion battery cells Introduction Figure 1. Simplified structure of a Li-Ion battery cell This white paper describes, in detail, how Non-Contact Measurement systems can be used to measure the thickness of the material used as anode and cathode plates in a rechargeable Li-Ion battery Cell. Figure 1 describes the elements comprising a Li-Ion battery cell. The cathode is comprised of [...]