Electronics Forum | Wed May 08 14:24:22 EDT 2013 | wahahasteven
we are using acrylic conformal coating on the PCB. Under the same program, same parameters (not changing anything on the machine), and we always found one or two boards have some spots which are not coated (shown as picture). The location of the spot
Electronics Forum | Wed May 08 20:14:24 EDT 2013 | davef
What happens when you rework those non-coated areas? Please list your rework steps Br, davef
Industry News | 2023-08-01 19:17:59.0
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Industry News | 2023-04-11 09:52:04.0
MIRTEC will premier its complete line of 3D AOI and SPI Inspection Systems at SMTconnect, scheduled to take place May 9-11, 2023 in Nuremberg, Germany. The company will showcase a total of five (5) Inspection Systems specifically designed to address the full spectrum of inspection requirements associated with the electronics manufacturing industry in Hall 4A, Stand 128.
Technical Library | 2017-06-01 17:12:08.0
The corrosion of Nickel-Palladium-Gold (Ni-Pd-Au) finish terminals in humid environments is known to be reduced with the application of a conformal coating such as acrylic. Corrosion has a higher rate of occurrence around the terminal ‘knee’ of a surface mount component, which may be reduced with the application of conformal coatings. Although radio frequency (RF) plasma processing is generally known to enhance conformity of conformal coating to surfaces through ionic bombardment, the effect on the functionality of assembled printed circuit boards (PCB) is not as well known. The purpose of this study is to assess whether RF plasma processing can enhance the adhesive and coverage qualities of an acrylic conformal coating on PCBs, specifically on Ni-Pd-Au terminals with a knee, and if plasma processing has an effect on the electrical functionality of components and fully assembled PCB.
Technical Library | 2007-08-28 20:18:06.0
A conformal coating is defined as a thin polymeric material which covers the surface of an electronic assembly. These coatings are used to provide an electrically insulative and environmentally protective seal or cover to a completed printed circuit board (PCB).
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Practical Set-Up, Qualification of Cleaning Process in PCB Assembly
SMTnet Express, June 1, 2017, Subscribers: 30,507, Companies: 10,601, Users: 23,315 Evaluating the Effects of Plasma Treatment prior to Conformal Coating on Eectronic Assemblies to Enhance Conformity of Coverage John D. Vanderford, Ann E. Paxton
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Surface Mount Technology Association (SMTA) | https://www.smta.org/knowledge/proceedings_abstract.cfm?PROC_ID=4717
Predicting the Reliability of Packaging-On Package-On- Package (POPOP) Interconnections Based on Accelerated Aging Experiments and Computational Modeling 中文
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