Technical Articles
Posted on 03 October 2013 by Electrolube
标签: Conformal Coatings
Conformal coatings are protective lacquers used within the electronics industry to protect printed circuit boards (PCBs) and eliminate failures caused by exposure to a variety of environmental conditions. Such conditions can include airborne ionic material, atmospheric moisture and the electrostatic attraction of dust. In more challenging environments however protection from chemicals, extreme humidity or even corrosive atmospheres, such as salt mist, may be required. The coatings are designed to ‘conform’ to the contours of the board, protecting…
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Posted on 09 March 2012 by Electrolube
标签: Environment
Concerns regarding chemical use are on the rise; whether it is a result of REACH and/or other regulations or just simply an increased awareness of operator safety and environmental impact, changes are definitely occurring. Organisations are on the lookout for greener, more user-friendly products and processes, whilst maintaining high levels of performance and production throughput.
Chemical use within the electronics industry covers a wide variety of applications; products include cleaners, coating materials, underfill resins, adhesives,…
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Posted on 17 August 2010 by Electrolube
标签: Cleaning
Cleaning is an essential process within electronics manufacture and has been used for many years to remove potentially harmful contaminants during PCB manufacture. Such contaminants include flux, solder and adhesive residues, and other more general contaminants such as dust and debris present from other manufacturing processes. The purpose of cleaning, specifically within the rapidly expanding electronics industry, is to essentially improve product lifetime by ensuring good surface resistance and by preventing current leakage leading to PCB failure.…
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Posted on 01 October 2009 by Electrolube
标签: Thermal Management
Most electronic components are low power and produce negligible amounts of heat in their operation. Some devices, however – such as power transistors, CPUs and power diodes – produce a significant amount of heat and measures may be necessary to take account of this in order to prolong their working life and increase reliability. If we consider a heat producing electronic component in isolation then, during operation, its temperature will rise until the heat produced within the device becomes equal to the heat lost to the surroundings and…
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Posted on 01 October 2009 by Electrolube
标签: Conformal Coatings, Legislation
Most people will have heard about new regulations coming into force relating to controlling the use of organic solvents. These are officially termed the Solvent Emissions Directive (SED), but are sometimes colloquially termed the VOC (volatile organic compound) regulations. The full force of the regulations comes in by October 2007, but the regulations are being phased in gradually – some parts apply already. The object of the regulations is to reduce the emission of solvents into the atmosphere, thus reducing the hazards to the environment…
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Posted on 01 October 2009 by Electrolube
标签: REACH, Legislation
Electrolube, a division of H K Wentworth Limited, is a leading manufacturer of electro-chemicals for electronics and industrial manufacturing. Electrolube’s products are widely used for the manufacture and maintenance of electrical and electronic components worldwide. Research and development, quality and environmental concerns are fundamental to the Electrolube philosophy of providing the highest level of customer service. Recently, the level of support Electrolube provides for its customers has expanded, encompassing REACH.
REACH…
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Posted on 01 October 2009 by Electrolube
标签: REACH, Legislation
Electrolube, a division of H K Wentworth Limited, is a leading manufacturer of electro-chemicals for electronics and industrial manufacturing. Electrolube’s products are widely used for the manufacture and maintenance of electrical and electronic components worldwide. Research and development, quality and environmental concerns are fundamental to the Electrolube philosophy of providing the highest level of customer service. Recently, the level of support Electrolube provides for its customers has expanded, encompassing REACH.
REACH…
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Posted on 01 October 2009 by Electrolube
标签: Encapsulation Resins
Resins used for these applications can be of various chemical types. Epoxy resins have been widely used for many years – they are generally hard and tough and exhibit low shrinkage on cure. They are characterised by an excellent level of mechanical properties, good high temperature performance and good adhesion to a wide variety of substrates – chemical resistance is also good. The cross-linking or curing process generally takes place slowly especially where small volumes of resin are involved. Fast cure hardeners can be used but these generate…
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Posted on 01 October 2009 by Electrolube
标签: Cleaning
Cleaning is an essential process within electronics manufacture and has been used for many years to remove potentially harmful contaminants during PCB manufacture. Such contaminants include flux, solder and adhesive residues, and other more general contaminants such as dust and debris present from other manufacturing processes. The purpose of cleaning, specifically within the rapidly expanding electronics industry, is to essentially improve product lifetime by ensuring good surface resistance and by preventing current leakage leading to PCB failure.…
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Posted on 01 October 2009 by Electrolube
标签: Conformal Coatings
Newly manufactured and cleaned printed circuit boards will generally perform well electrically, but performance will quickly deteriorate due to adsorption of atmospheric moisture, contamination of the surface with airborne ionic material, electrostatic attraction of dust to the surface, condensation etc. In order to avoid these problems boards for more demanding and high specification applications are often conformally coated as the last stage of manufacture.
Conformal coatings are normally applied to circuit boards by dipping or spraying,…
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