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Counterfeit Electronic Components
Counterfeit electronic components are electronic parts whose origin or quality is deliberately misrepresented. Counterfeiting of electronic components can infringe on the legitimate producer's trademark rights. The marketing of electronic components has been commoditized, making it easier for counterfeiters to make it out into the supply chain. Trends According to a January 2010 study by the US Department of Commerce Bureau of Industry and Security, the number of counterfeit incidents reported grew from 3,868 in 2005 to 9,356 in 2008. 387 respondents to the survey cited the two most common types of counterfeit components: 'blatant' fakes and used products re-marked as higher grade. The World Semiconductor Trade Statistics estimate that the global total addressable market (TAM) for semiconductors is in excess of $200 billion. This increase in instances of counterfeit products entering the supply chain is characterized by globalization and the industries in China. On December 11, ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Counterfeit
A counterfeit is a fake or unauthorized replica of a genuine product, such as money, documents, designer items, or other valuable goods. Counterfeiting generally involves creating an imitation of a genuine item that closely resembles the original to deceive others into believing it is authentic. Counterfeit products are often made to take advantage of the higher value of the original product, typically using lower-quality materials or production methods. Counterfeit food, drinks, medicines, and personal care products can contain harmful or inactive ingredients, causing anything from mild issues to serious, life-threatening ones. Counterfeit footwear, clothing, and accessories have been found to contain high levels of lead, arsenic, and phthalates. Forgery of money or government bonds Counterfeit money is currency that is produced without the legal sanction of the state or government; this is a crime in all jurisdictions of the world. The United States Secret Service, mostly ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lead (electronics)
In electronics, a lead () or pin is an electrical connector consisting of a length of wire or a metal pad ( surface-mount technology) that is designed to connect two locations electrically. Leads are used for many purposes, including: transfer of power; testing of an electrical circuit to see if it is working, using a test light or a multimeter; transmitting information, as when the leads from an electrocardiograph are attached to a person's body to transmit information about their heart rhythm; and sometimes to act as a heatsink. The tiny leads coming off through-hole electronic components are also often called ''pins''; in ball grid array packages, they are in form of small spheres, and are therefore called "balls". Many electrical components such as capacitors, resistors, and inductors have only two leads, while some integrated circuits can have several hundred or even more than a thousand for the largest ball grid array packages. Integrated circuit pins often ei ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Supply-chain Security
__NOTOC__ Supply chain security (also "supply-chain security") activities aim to enhance the security of the supply chain or value chain, the transport and logistics systems for the world's cargo and to "facilitate legitimate trade".Government of CanadaAgreement between Canada and the European Union on Customs Cooperation with Respect to Matters Related to Supply-Chain Security signed 4 March 2013, accessed 18 August 2021 Their objective is to combine traditional practices of supply-chain management with the security requirements driven by threats such as terrorism, piracy, and theft. A healthy and robust supply chain absent from security threats requires safeguarding against disturbances at all levels such as facilities, information flow, transportation of goods, and so on. A secure supply chain is critical for organizational performance. Typical supply-chain security activities include: * Credentialing of participants in the supply chain * Screening and validating of the conte ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Counterfeit Consumer Goods
Counterfeit consumer goods are goods illegally made or sold without the brand owner's authorization, often violating trademarks. Counterfeit goods can be found in nearly every industry, from luxury products like designer handbags and watches to everyday goods like electronics and medications. Typically of lower quality, counterfeit goods may pose health and safety risks. Various organizations have attempted to estimate the size of the global counterfeit market. According to the OECD, counterfeit goods made up approximately 2.5% of global trade in 2019, with an estimated value of $464 billion. Sales of counterfeit and pirated goods are projected to reach €1.67 trillion (approximately $1.89 trillion USD) by 2030. Despite the illegality of counterfeit items, many counterfeit items, especially fashion items such as handbags, watches, shoes and sports jerseys, are widely sold in many regions and are purchased by both locals and tourists, typically at markets in Africa, Asia, Lati ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Capacitor Plague
The capacitor plague was a problem related to a higher-than-expected failure rate of non-solid aluminium electrolytic capacitors between 1999 and 2007, especially those from some Taiwanese manufacturers, due to faulty electrolyte composition that caused corrosion accompanied by gas generation; this often resulted in rupturing of the case of the capacitor from the build-up of pressure. High failure rates occurred in many well-known brands of electronics, and were particularly evident in motherboards, video cards, and power supplies of personal computers. A 2003 article in ''The Independent'' claimed that the cause of the faulty capacitors was due to a mis-copied formula. In 2001, a scientist working in the Rubycon Corporation in Japan stole a mis-copied formula for capacitors' electrolytes. He then took the faulty formula to the Luminous Town Electric company in China, where he had previously been employed. In the same year, the scientist's staff left China, stealing again the m ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Solderability
The solderability of a substrate is a measure of the ease with which a soldered joint can be made to that material. Good solderability requires wetting (low contact angle) of the substrate by the solder. __TOC__ Of metals Solderability varies depending on the type of solder alloy under discussion. The discussion that follows applies only to unspecified electronic solders (which may include solders that contain lead, now banned for use in nearly all electronic equipment made or sold in the EU). Solderability when using lead-free alloys can differ significantly from solderability when using lead based alloys. Noble metals may be easy to solder but they have brittle joints. The metals in the good category require a large amount of heat therefore oxidation is an issue. To overcome this a flux is required. For carbon steel, low alloy steel, zinc, and nickel the presence of sulfur creates a brittle joint; lower temperatures are used to minimize this problem. The oxides on the surface o ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Stereo Microscope
The stereo, stereoscopic or dissecting microscope is an optical microscope variant designed for low magnification observation of a sample, typically using light reflected from the surface of an object rather than transmitted through it. The instrument uses two separate optical paths with two objectives and eyepieces to provide slightly different viewing angles to the left and right eyes. This arrangement produces a stereoscopy, three-dimensional visualization of the sample being examined."Introduction to Stereomicroscopy" by Paul E. Nothnagle, William Chambers, and Michael W. Davidson, ''Nikon MicroscopyU''. Stereomicroscopy overlaps macrophotography for recording and examining solid samples with complex surface topography, where a three-dimensional view is needed for analyzing the deta ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Compressor
A compressor is a mechanical device that increases the pressure of a gas by reducing its volume. An air compressor is a specific type of gas compressor. Many compressors can be staged, that is, the gas is compressed several times in steps or stages, to increase discharge pressure. Often, the second stage is physically smaller than the primary stage, to accommodate the already compressed gas without reducing its pressure. Each stage further compresses the gas and increases its pressure and also temperature (if inter cooling between stages is not used). Types Compressors are similar to pumps: both increase the pressure on a fluid (such as a gas) and both can transport the fluid through a pipe. The main distinction is that the focus of a compressor is to change the density or volume of the fluid, which is mostly only achievable on gases. Gases are compressible, while liquids are relatively incompressible, so compressors are rarely used for liquids. The main action of a pump is ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Tracer-gas Leak Testing
A tracer-gas leak testing method is a nondestructive testing method that detects gas leaks. A variety of methods with different sensitivities exist. Tracer-gas leak testing is used in the petrochemical industry, the automotive industry, the construction industry and in the manufacture of semiconductors, among other uses. Types Several tracer-gas leak testing methods exist, including: * Detection of leaks using helium mass spectrometer, which provides high sensitivity * Hydrogen leak testing, which provides the best mobility * Refrigerant gas leak detection, for refrigeration applications Method selection Typical leakage rates The nature of the product or the process and the process gases will set the leak rate requirement: Sensitivity of methods Based on the target leak rate, the table below will help to choose the most suitable method. Applications Typical applications of tracer-gas leak testing include: * In petrochemical plants, hydrocracking, vapocracking, cata ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Curve Tracer
A curve tracer is a specialised piece of electronic test equipment used to analyze the characteristics of discrete electronic components, such as diodes, transistors, thyristors, and vacuum tubes. The device contains voltage and current sources that can be used to stimulate the device under test (DUT). Operation The function is to apply a swept (automatically continuously varying with time) voltage to two terminals of the device under test and measure the amount of current that the device permits to flow at each voltage. This so-called I–V (current versus voltage) data is either directly displayed on an oscilloscope screen, or recorded to a data file for later processing and graphing with a computer. Configuration includes the maximum voltage applied, the polarity of the voltage applied (including the automatic application of both positive and negative polarities), and the resistance inserted in series with the device. The main terminal voltage can often be swept up to several ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Scanning Acoustic Microscope
A scanning acoustic microscope (SAM) is a device which uses focused sound to investigate, measure, or image an object (a process called scanning acoustic tomography). It is commonly used in failure analysis and non-destructive evaluation. It also has applications in biological and medical research. The semiconductor industry has found the SAM useful in detecting voids, cracks, and delaminations within microelectronic packages. History The first scanning acoustic microscope (SAM), with a 50 MHz ultrasonic lens, was developed in 1974 by R. A. Lemons and C. F. Quate at the Microwave Laboratory of Stanford University. A few years later, in 1980, the first high-resolution (with a frequency up to 500 MHz) through-transmission SAM was built by R.Gr. Maev and his students at his Laboratory of Biophysical Introscopy of the Russian Academy of Sciences. First commercial SAM ELSAM, with a broad frequency range from 100 MHz up to 1.8 GHz, was built at the Ernst Leitz Gmb ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
X-ray Fluorescence Spectroscopy
X-ray fluorescence (XRF) is the emission of characteristic "secondary" (or fluorescent) X-rays from a material that has been excited by being bombarded with high-energy X-rays or gamma rays. The phenomenon is widely used for elemental analysis and chemical analysis, particularly in the investigation of metals, glass, ceramics and building materials, and for research in geochemistry, forensic science, archaeology and art objects such as paintings. Underlying physics When materials are exposed to short-wavelength X-rays or to gamma rays, ionization of their component atoms may take place. Ionization consists of the ejection of one or more electrons from the atom, and may occur if the atom is exposed to radiation with an energy greater than its ionization energy. X-rays and gamma rays can be energetic enough to expel tightly held electrons from the inner orbitals of the atom. The removal of an electron in this way makes the electronic structure of the atom unstable, and electron ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
