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Acoustic Micro-Imaging
Acoustic Micro-Imaging Customer Case The customer is a leader in the field of acoustic micro-imaging. They use pulse ultrasound to image non-human materials. The ultrasound frequency used is between 100 and 200 MHz, as the materials they study can handle these frequencies (one cannot normally use such high frequencies with human tissue). The customer's PRF (Pulse Repeat Frequency) is approximately 4 KHz, with a PRI (Pulse Repeat Interval) of 250 ms. They need to capture approximately 2 ms (1,000 points) of data for each pulse. The customer wants scope emulation software to allow verification of board operation without having [...]
High Resolution Semiconductor Wafer Measurements at Lower Costs GalleryHigh Resolution Semiconductor Wafer Measurements at Lower Costs
Application Notes-MTI, Brand-MTI, Industry-Consumer Products, Industry-Electronics, Industry-Manufacturing, Industry-Semiconductor, Industry-Semiconductor-MTI, Products-MTI-Capacitance, Products-MTI-Semiconductor/Metrology, Z-REPUB, z1
High Resolution Semiconductor Wafer Measurements at Lower Costs
MTI's Proforma technology characterizes semiconductor wafers in terms of bow and warp, thickness, total thickness variation (TTV) and center thickness. Until recently, semiconductor wafer measurements at resolutions less than 100 µm were cost-prohibitive. Moreover, only expensive devices such as interferometers were capable of these measurements. Today, the semiconductor industry can use capacitance gauges instead of laser interferometers to achieve high resolution at fraction of the cost. Much like affordable CCD cameras transformed and expanded the market for video, cost-effective capacitance is disrupting the semiconductor wafer measurement market and creating new opportunities for quality testing and validation. The [...]
Measure Wafer Bow, Warp and TTV with Capacitance GalleryMeasure Wafer Bow, Warp and TTV with Capacitance
Application Notes-MTI, Brand-MTI, Industry-Battery, Industry-Compliance Testing, Industry-Consumer Products, Industry-Electronics, Industry-Manufacturing, Industry-Semiconductor, Industry-Semiconductor-MTI, Industry-Sensors, Products-MTI-Capacitance, Z-REPUB, z1, ZOK
Measure Wafer Bow, Warp and TTV with Capacitance
The flatness of silicon wafers used to manufacture integrated circuits is controlled to tight tolerances to help ensure that the whole wafer is sufficiently flat for lithographic processing. To ensure your wafer manufacturing process is within tolerance, you need to measure the wafers being produced. Various measurement techniques exist to verify process tolerances and eliminate expensive scrap wafers. Non-contact capacitive sensing is a highly precise and cost-effective means to measure wafer flatness, bow, warp, and total thickness variation (TTV). MTI Instruments’ Proforma 300i and 300iSA systems use capacitance sensors to improve yields while reducing costs through better dimensional control of [...]
Non-Destructive Testing (NDT) Scanning Inspection
Non-Destructive Testing (NDT) Scanning Inspection Customer Case The customer is testing interior of pipes with time-resolved fluorescence, a Photo Multiplier Tube (PMT), a transducer with 8 MHz BandWidth and an integration chamber. They are searching for rare events and the scan width is approximately 3.5 inches. Multiple Record: 350 scans x 3 Kpts. GaGe Case Solution We recommended 5X-10X over sampling - therefore CompuScope 14100, CompuScope 12100, or even the 8-bit CS8500 may be sufficient. For a CS8500 Single Record example, say, at the single-channel sampling-rate of 50 MS/s, a 3000 point (i.e. 3 KS) acquisition would take about [...]
Non-Destructive Testing (NDT) of Concrete Structures
Non-Destructive Testing (NDT) of Concrete Structures Customer Case Our customer needs to perform Non Destructive Testing (NDT) to test concrete. The testing method involves using a special hammer mounted with a geophone, which serves as a transducer. They strike the concrete structure with the hammer and record the results for analysis. A definitive echo in the signal will be appear should there be a crack or a weak point in the concrete. GaGe Case Solution The customer was looking for a low-cost board that would be able to sample at 20 MHz or more, so we recommended the CompuScope [...]
How to Measure Dielectric Separator Thickness in EV Batteries GalleryHow to Measure Dielectric Separator Thickness in EV Batteries
Application Notes-MTI, Brand-MTI, Industry-Automotive, Industry-Compliance Testing, Industry-Consumer Products, Industry-Electronics, Industry-Government/Military, Industry-Manufacturing, Industry: Transportation, News-MTI, News-MTI-Instrumentation, Products-MTI-Capacitance, Products-MTI-Laser/Fiber Optic, Products-MTI-Signal Generators, Z-REPUB, z1
How to Measure Dielectric Separator Thickness in EV Batteries
The International Energy Agency predicts that as many as 125 million electric vehicles (EVs) will be on the road by 2030. At the heart of these electric cars, trucks, and buses is the lithium-ion (Li-ion) battery, a type of rechargeable battery with high energy density and low self-discharge. The plates in Li-ion batteries consist of lithium compounds that are applied to either a copper plate substrate (cathode) or an aluminum substrate (anode). In turn, these two plates are separated by a dielectric separator. All of the layers in an EV battery are extremely thin. In fact, the cathode and [...]
Non-Destructive Testing (NDT) for Steel Manufacturing
Non-Destructive Testing (NDT) for Steel Manufacturing Customer Case The customer is a custom-built contractor of Non-Destructive Test (NDT) instruments for steel manufacturing. NDT uses ultrasonic pulses to scan through thick sheets of metals for possible causes of early wear, such as cracks or impurities. The stimulus is a stream of ultrasonic pulses. The response is their reflection from various depths. The center frequencies used by this customer are in the range of 250 KHz to 2.25 MHz and pulses are about 10 microseconds. The pulse repeat frequency (PRF) is less than 1 KHz. The thickness of steel sheets is [...]
Galvannealing Phosphor Thermometry
Galvannealing Phosphor Thermometry Customer Case During the process of galvanizing, steel is dipped in a bath of liquid tin to increase its resistance to oxidation and moisture. After galvanizing, a precise heat treatment allows control of the mechanical properties of the final galvanized steel. This heat treatment is known as galvannealing. During galvannealing, precise temperature control is necessary to promote the desired grain growth in the steel's tin-rich coating. Galvanneal thermometry is difficult. The rolling of the hot steel makes contact thermocouples and optical pyrometry impractical. A customer's galvanneal furnace is equipped for phosphor thermometry. This novel technique uses [...]
SEPTA Case Study: Major Metropolitan Transit System Uses Vitrek Power Analyzer to Monitor High-Power DC Feeders
- - - Challenges Personnel needed a reliable, portable instrument to accurately measure and record the current on each feeder over a selected time period. - Overview The Southeastern Pennsylvania Transportation Authority (SEPTA) operates the transit system throughout the city of Philadelphia, extending into the surrounding counties in Pennsylvania and across the Delaware River into New Jersey. A major component of this system is the network of subways and commuter trains. Power for the operation of these trains is provided by an array of substations distributed throughout the region. One [...]
Machine Tools Characterization
Machine Tools Characterization Customer Case This customer is involved in characterizing machine tools. In order to do this, they need five simultaneous channels capturing 12-bit samples at 50 KSPS, with a 20 us sample width. A total of 5 seconds of data is required. GaGe Case Solution The solution to this problem is a three-card Master/Slave CompuScope 512 system, with each card having 512 Kilosamples of on-board memory. The CompuScope 512 is a 12-bit 5 MSPS A/D card for the ISA bus. As each CompuScope 512 has two channels, this system would provide 6 channels for the customer's application. [...]