Parylene Conformal Coating Specifications & Properties
ثبت نشده
چکیده
Parylene N is a primary dielectric, exhibiting a very low dissipation factor, high dielectric strength, and a dielectric constant invariant with frequency. This form has the highest penetrating power of all the Parylenes. Parylene C has a useful combination of electrical and physical properties plus a very low permeability to moisture and other corrosive gases. Along with its ability to provide a true pinhole free conformal insulation, Parylene C is the material of choice for coating c assemblies. ritical electronic
منابع مشابه
Evaluation and Characterization of Reliable Non-Hermetic Conformal Coatings for Microelectromechanical System (MEMS) Device Encapsulation
The thrust of this project was to evaluate commercial conformal encapsulation candidates for low cost aerospace applications. The candidate conformal coatings evaluated in this study included silicone elastomers, epoxies, and Parylenes with bi-layer or tri-layer designs. Properties characterized in this study included mobile ion permeation and moisture ingress resistance, interfacial adhesion v...
متن کاملEffectiveness of Conformal Coat to Prevent Corrosion of Nickel-palladium-gold-finished Terminals
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 fro...
متن کاملParylene-based electret power generators
An electret power generator is developed using a new electret made of a charged parylene HT R © thin-film polymer. Here, parylene HT R © is a room-temperature chemical-vapor-deposited thin-film polymer that is MEMS and CMOS compatible. With corona charge implantation, the surface charge density of parylene HT R © is measured as high as 3.69 mC m−2. Moreover, it is found that, with annealing at ...
متن کاملThe Effect of Parylene-C Coating on the Surface Free Energy, Water Sorption, Solubility and Staining of PMMA
Background and objective: Parylenes are conformal protective polymer coating materials utilized in various biomedical applications since they are chemically and biologically inert and stable. Acrylic resins, used in the manufacturing of different types of intra-oral prostheses, are vulnerable to fluid sorption and solubility and consequently alteration of different physical and mechanical prope...
متن کاملBiocompatible coatings for CMUTs in a harsh, aqueous environment
The results of coating capacitive micromachined ultrasonic transducer (CMUT) arrays with two different biocompatible materials, parylene-c and polydimethylsiloxane (PDMS), are reported. These materials were characterized for use with CMUTs to enable direct contact transcutaneous and in vivo imaging. A passivation coating is required to provide electrical isolation to the active areas of the dev...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
عنوان ژورنال:
دوره شماره
صفحات -
تاریخ انتشار 2005