Constant A quantity assumed to have a fixed value in a specified mathematical context. Sustained (of an electric arc) continuous; Heat transfer to the anode in free burning arcs Constant An experimental or theoretical condition, factor, or quantity that does not vary or that is regarded as inva...
What Does PCB Tg Mean? Tg stands for the glass transition temperature of the laminate material used in a PCB. The laminate is the insulating substrate that forms the core layers of the board on which the copper traces are patterned. The most common laminate material used in PCBs is FR-4 ...
We have found that a combination of conductive and non-conductive material work well to improve sample collection and to allow ease of sample removal like the image shown.Does this mean you always need to use a substrate during sample development? Not really. If your material and application ...
Ion–ion recombination and asymmetrical charge transfer are two of a series of physical phenomena which are commonly explained through transitions taking p... Borondo,F - 《Journal of Chemical Physics》 被引量: 40发表: 1981年 Dielectric constant measurements near the critical point of cyclohexane-...
Over 90% of rigid PCBs manufactured use some grade of FR4 dielectric. But what exactly does the FR acronym mean? And why is FR4 the dominant material over other FR versions? This article covers everything to know about FR4 PCB substrates, including: Meaning of flame retardant (FR) rating ...
Polyetheretherketone(PEEK) is a semi-crystalline, high-performance organic thermoplastic polymer that belongs to the PAEK family.What does PEEK mean? Let’s look into it. Is PEEK a Polymer? PEEK(Polyetheretherketone) is a colourlessorganic thermoplastic polymer, even though when printed it looks be...
Polyimides are a type of polymer made up of imine monomers. Many digital isolators use polyimide as an insulating material for a variety of reasons, including its high breakdown strength, thermal and mechanical stability, chemical resistance, ESD performance, and low dielectric constant. ...
A fuse is a safety device which protects the electrical appliances in case of sudden increase in current. Characteristics of fuse wire : 1. Its melting point should be low. 2. It has suitable value of resistivity.
What materials are used for 5g communication antenna, and the price of 5g communication antenna of different materials is also different. Therefore, when selecting 5g communication antenna, we should also consider the price. It does not mean that the more expensive the price is, the better the ...
d) What influence does sintering temperature have on tantalum powder breakdown voltage? Figure. 7 Because the impurities are eliminated more thoroughly at higher sintering temperatures, the breakdown voltage rises in a non-linear fashion as the sintering temperature rises. e) What will happen to th...