Technical Library | 2013-04-18 16:46:42.0
Conformal coatings are considered a method of providing corrosion protection to electrical assemblies used in high-humidity or harsh environments. They are applied to PCBs for various reasons: to protect from moisture and contamination, to minimize dendritic growth, to provide stress relief, and for insulation resistance. These contribute to more durable handling, enhanced device reliability, and reduced warranty costs. Increased miniaturization of new circuit board designs requires flexible, low stress coating material to protect delicate components and fine-pitch leads. Silicone conformal coatings offer many advantages that address the general trend of ongoing PCBs designs, such as: high flexibility and low modulus to reduce stress on delicate or small components... First published in the 2012 IPC APEX EXPO technical conference proceedings.
Industry Directory | Consultant / Service Provider / Manufacturer
PCT specializes in Parylene conformal coating. We also offer parylene dimer sales, machine sales & consulting services. We offer the fastest turn times in the industry and take pride in our excellent quality and customer service.
Technical Library | 2015-03-26 19:16:03.0
Nickel-palladium-gold-finished terminals are susceptible to creep corrosion. Excessive creep corrosion can result in device failure due to insulation resistance loss between adjacent terminals. The mixed flowing gas test has been demonstrated to produce creep corrosion on parts with nickel-palladium-gold finished terminals. Conformal coats are often used to protect printed wiring assemblies from failure due to moisture and corrosion. However, coating may not be sufficient to protect lead terminations from failure.In this study, acrylic, silicone, urethane, parylene, and atomic layer deposit (ALD) coatings were examined for their effectiveness at preventing corrosion of nickel-palladium-gold-finished terminals.
BIRAL VG-HT (VISCO GREASE HIGH TEMERATURE) is sprayed on initially as a thin liquid and then it rapidly penetrates into normally inaccessable parts/components before setting to its grease consistency The fine no-drip "stay-in-place" grease film is
Technical Library | 2019-05-01 15:19:19.0
"Sealing" in dispensing and potting technology describes a process in which sensitive electronics surfaces are coated with a very thin layer of casting resin or protective varnish. It serves to protect against environmental influences and corrosion, resulting in a longer service life and operational reliability of the components. To ensure that the material is distributed homogeneously across the surface, this well-known "conformal coating" process is employed using low-viscosity casting resins.
Industry Directory | Manufacturer's Representative
Our new protective coating service is a scientific breakthrough to enhance the metallic surface of electric contacting components, PCB, etc. to prevent corrosion. We also recycle parts like prober pins, test boards, test sockets, etc. that lost their conductivity due to wear. Gauranteed to save money for your company.
A preparation for removing oxides and sulfides from electric contacts and for providing protection against corrosion, ensures non-obstructed electricity flow especially in the case of oxidized or worn contacts, can be used in audio products -high and
Technical Library | 2023-01-10 20:15:42.0
Over the past years there has been consistent growth in the use of electroless nickel / immersion gold (ENIG) as a final finish. The finish is now frequently being used for PBGA, CSP, QFP and COB and more recently gathered considerable interest as a low cost under-bump metallization for flip chip bumping application. One of the largest users for this finish has been the telecommunication industry, were millions of square meters of PCBs with ENIG have been successfully used. The nickel layer offers advantages such as multiple soldering cycles and hand reworks without copper dissolution being a factor. The nickel also acts as a reinforcement to improve through-hole and blind micro via thermal integrity. In addition the nickel layer offers advantages such as co-planarity, Al-wire bondability and the use as contact surface for keypads or contact switching. Especially those pads, which are not covered by solder need a protective coating in corrosive environment – such as high humidity or pollutant gas.
We offer electronics potting and encapsulation services to help protect your electronics against shock and vibration, corrosion, and contaminants such as dust, moisture and chemicals.
We offer electronics potting and encapsulation services to help protect your electronics against shock and vibration, corrosion, and contaminants such as dust, moisture and chemicals.
