Technical Library | 1999-08-27 09:27:10.0
Conformal coating is a material that is applied to electronic products or assemblies to protect them from solvents, moisture, dust or other contaminants that may cause harm. Coating also prevents dendrite growth, which may result in product failure. This paper will discuss the variables that affect the application of conformal coatings, and review in detail those variables that impact the process of selective coating of printed circuit boards.
Technical Library | 2013-09-25 20:57:24.0
Conformal coating is an enabling process that allows for the ruggedizing of electronic devices and modules. As the process increases the durability of electronics that are subjected to various end-use environmental conditions, it adds value to the product. While it does add value, consumers and manufacturers expect the electronics to work when subjected to dirt, humidity, moisture, corrosive materials, and various other contaminants. This expectation results in a drive to minimize the cost of the process. The lowest cost of ownership for a conformal coating process occurs by utilizing automated selective conformal coating equipment.
Technical Library | 2019-06-03 15:32:40.0
ACI Technologies was pleased to assist a customer by conducting elemental analysis on several assemblies displaying severe corrosion. Several board assemblies had failed in the field and exhibited areas of corrosion in close proximity to onboard components. The most common source of corrosion on electronic assemblies is residual flux. Fluxes are specific chemistries applied during the soldering process which improve the wetting of the solder to both the pad and component when forming the solder joint. They can be highly reactive chemicals that, if left on the assemblies, can lead to corrosion, electrical degradation, and decreased reliability. In the presence of moisture and electrical bias, flux residue can enable dendritic growth as a result of electrochemical migration (ECM).
Technical Library | 2019-12-05 13:30:46.0
Conformal coatings are regularly employed to protect the surface of a soldered printed circuit board assembly from moisture, chemicals in the PCBA's service environment, and foreign objects or debris. Conformal coatings are nonconductive and therefore cannot be placed on any location where electrical contact will be required, such as connector pins, test points, and sockets. Conformal coatings are also not permitted on any mechanical interface location, such as mounting holes or brackets, to assure the proper fit between items in the final assembly. In order to apply conformal coatings to an assembly and comply with the restrictions on keep-out areas, masking is employed to protect those surfaces.
Events Calendar | Mon Apr 23 00:00:00 EDT 2018 - Thu Apr 26 00:00:00 EDT 2018 | Shanghai, China
SMTA China East Conference 2018
Industry News | 2012-02-07 00:45:44.0
IPC and JEDEC have released the C revision of IPC/JEDEC J-STD-033, Handling, Packing, Shipping and Use of Moisture/Reflow and/or Process Sensitive Components. With an expanded scope, the document now covers the handling, packing and shipping of non-IC electronic components that have been classified per EIA/IPC/JEDEC J-STD-075, Classification of Non-IC Electronic Components for Assembly Processes.
Industry News | 2022-09-26 06:29:47.0
XDry Corp. today announced that it received a 2022 Mexico Technology Award in the category of Dry Boxes for its HXD2-1106-01 Heated Dry Cabinet. The award was announced during a ceremony that took place Wednesday, Sept. 21, 2022 during SMTA Guadalajara in Mexico.
Industry News | 2019-10-22 12:34:34.0
Humitector™ Type 2 delivers advanced sustainable attributes including halogen-free*, cobalt dichloride-free, and reduced cobalt dibromide content The use of Type 2 Humidity Indicator Cards with a non-reversible 60% RH spot indicator is preferred by IPC/JEDEC standard J-STD-033D.
New Equipment | Cleaning Equipment
In-line technologies in a batch footprint. Today’s challenges for PCB manufacturers hinge on high density, increasing complexity, and miniaturization. Manufacturers who currently clean with batch-type cleaners are looking for a solution
New Equipment | Component Counters / SMD Counters
Off-line X-Ray SMD Chip Counting System--ML1000 Equipment overview Used for the rapid increase of reel inventory for production in the SMT industry, testing components: resistors, capacitors, inductors, crystals, LEDs, diodes, transistors, multi-
