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Downsizing the Cu signal traces in the redistribution layer is an effective approach to increasing the number of signal I/O lines and thereby greatly increasing signal processing performance between logic and memory chips in advanced fine-pitch packaging. Downsized Cu traces, however, are vulnerable to current stress, which degrades electromigration resistance. This is a serious problem in advanced...
To prove to a customer that a new or overhauled gas turbine satisfies its contractual performance, mechanical and emissions target, an acceptance test is normally performed by the manufacturer. Such acceptance tests typically involve running the turbine through its operational envelope based on a predefined test schedule, with information regarding the thermodynamic and mechanical performance as well...
Thermo-vision is the fastest identification method of the possible defects and energy losses, being an important instrument in the forecast maintenance. In this study, it is proposed a task notebook model for the thermo-vision equipment acquisition that can be utilized in different laboratories for the energetic efficiency study, electrical equipment and mechanics and lasers physics diagnosis. By...
Solar direct-drive (SDD) appliances including refrigerators and freezers are widely used for storing vaccines and other medical products in locations without reliable mains electricity. The capacity of the solar array powering an SDD appliance must be large enough to provide sufficient compressor runtime during periods of reduced solar irradiance. SDD appliance solar arrays therefore create useful...
The testing guideline of medical measuring devices on ultrasonic physiotherapy equipment is published in Thailand, which is conducted under a collaborative project between the ultrasound laboratory of the National Institute of Metrology, Thailand (NIMT) and the department of medical sciences, and the department of health service support, ministry of public health. This project has been carried out...
This paper presents a test system for testing efficiency of single-suction centrifugal electric pumps for quality control in a manufacturer's production line. The proposed system based on testing an individual pump for an expected total head provides automatic test procedures to be conducted in accordance with the requirements specified in the Thai Industrial Standard (TIS) 2618-2557. The hardware...
A methodology for lifetime testing of lithium-ion batteries in small SOC intervals is presented. The specific test procedure and level of control is important in producing reliable data. The methodology offers high precision without increasing the test duration. The duration time can be reduced with up to 50%, by ensuring more continuous cycling and by reducing the number of performance tests.
Development of flexible ultrasonic transducers for non-destructive testing (NDT) application has been desired since many infrastructures were consist of complex geometry. Sol-gel spray technique realized flexible ultrasonic transducers, however, it is difficult for manual spray coating to make quality assurance. In addition, manual spray coating is not suitable for mass production. Therefore, automatic...
The characterization of concentration modules based on Fresnel lens performed in outdoor conditions is presented. Two different types of high concentration photovoltaic modules with point focusing silicone on glass Fresnel lenses as optical concentration element are characterized in order to make a comparison between them. Main differences between the two modules are represented by the number of multijunction...
Peat land fires monitoring that has the highest accuracy is ASMC with an accuracy rate of 60%. So, it takes a peat land fire detector design, in order to mitigate catastrophic fires in peat land. Peat in Riau Province is generally of woody type, therefor the research focus on woody type peat land monitoring. Sensor LM35 is used for this detection system. This sensor works by using the characteristics...
The significant decrease in agricultural land and the rapid development of hydroponic system technology such as Nutrient Film Technique (NFT), have brought huge challenge to farmers. This hydroponic system requires special attention to several parameters such as the water temperature, water level, acidity (pH), and the concentration of the nutrient (EC/PPM). We first monitor and collect information...
The smart electricity meter (SEM) is important in our life, so consumers and manufacturers pay more attention to its reliability. In order to evaluate the performance of SEM, we must spend a lot of time censoring its status. For example, if we want to assess to the SEM reliability, it may take several years at least according to the standards. So accelerated degradation testing (ADT) and accelerated...
Single-event effects and total ionizing-dose testing was performed on a flash NAND device. The results are presented here and the consequences for error correction architectures are analyzed taking into account the fact that beginning-of-life flash devices are susceptible to data corruption with no external stress applied. The analysis indicates that many typical error correction architectures may...
We provide a brief discussion of the basic enhancement mode gallium nitride (GaN) power FET device structure and its performance and then report the results of destructive single-event effects (SEE) testing of the Intersil ISL70023SEH and ISL70024SEH GaN power transistors. We include a discussion of a conservative safe operating area (SOA) specification for both devices.
Recent revisions of IEC 60034-27-3 and API 541 now include recommended acceptance criteria for dissipation factor (DF, or tangent delta) measurements and offline partial discharge (PD) analysis, which are common factory acceptance tests of sacrificial coil samples of new medium voltage stator windings. IEC 60034-27-3 recommends acceptance limits for DF & tip-up and API 541 recommends 100 pC for...
This article describes a method for the long-term testing of storage batteries and high-capacity ion sources, implemented using National Instruments technologies. A test stand was developed using DAQ NI USB-6001. A brief description of the program implemented in NI LabVIEW is given. The part of the program code is opened — the block diagram of correction of temperature coefficients. The interface...
The paper presents a study on the behavior of electric equipments type relay, which are subject to vibratory processes during functioning, the variation of the contacts temperatures and of the effects involved due to this temperature increase. A comparative study was made on a set of three relays.
Dynamic measurements on carbon nanotube (CNT) multiscale glass fiber reinforced polymers (GFRPs) were performed to assess the usage of self-sensing composite structures in vibration environment. To achieve that purpose, a composite cantilever beam was tested in static and dynamic conditions. Applied strain was measured by means of strain gauges mounted on the tested specimen. Static measurements were...
The importance of the mechanical behavior of electronic packages starts at the beginning of the package assembly process and continues through performance testing procedures at different levels. Predicting an electronic package's mechanical performance by simulation is an ongoing challenge and pursuit of both industry and academia. To achieve this goal, advanced simulation or analyses should have...
In this work, we have used nanoindentation methods to explore the creep behavior, and aging effects of SAC305 solder joints at several elevated testing temperatures from 25 to 125 oC. A special high temperature stage and test protocol was used within the nanoindentation system to carefully control the testing temperature, and make the measurements insensitive to thermal drift problems. Solder joints...
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