Контрактное производство электроники под ключ в Китае
Шэньчжэнь, район Баоань, улица Фуюн, улица Фуцяо, район 3, промышленный парк Лонгхуй 6
Kingford
Часто задаваемые вопросы о сборке SMT PCB
Impedance is the combination of capacitance and inductance when a circuit operates at high frequencies.
Two types: electroless nickel immersion gold and electroplated hard gold.
Because it has the highest corrosion resistance and electrical conductivity after copper and silver. Gold is sometimes used in combination with cobalt and nickel to increase the wear resistance of the fingers.
Gold fingers are gold-plated, narrow connectors on the edge of a printed circuit board that enable connections between multiple circuit boards. They are made of meat gold, the hardest form of gold available, which works for long periods of time and has excellent conductivity.
The general TG plate is more than 130 degrees, the high TG is generally greater than 170 degrees, and the medium TG is about 150 degrees.
Higher stability, best to withstand high power density designs, ideal for multilayer and HDI PCBs.
The circuit board material must be flame retardant, cannot burn at a certain temperature, but can only soften. This temperature point is called the glass transition temperature (Tg). A higher Tg point means higher temperature requirements during lamination.
Tg, or glass transition temperature, is a basic material parameter of temperature (°C). It defines the temperature at which the substrate becomes mechanically unstable. Tg is the temperature value that guarantees the mechanical stability of the PCB during the life of the PCB.
Lightweight and understated
Dimensional stability
heat dissipation
Low cost backlit membrane switch
Dust and moisture proof
Easy integration into complex interface components
High efficiency and low power consumption
Available in a variety of sizes, colors and strengths
Available for silver flexible membrane switches and copper flexible membrane switches.
Flexible LED PCB, Rigid LED PCB, Hybrid LED PCB, Multilayer LED PCB, Single Layer LED PCB.
The LEDs are attached to the PCB through a soldering process and emit light when electrically connected.
Increase resistance to thermal strain; increase current carrying capacity; increase mechanical strength of connector sites and PTH holes; take advantage of special materials (i.e. high temperatures) without circuit failure.
Достаточно загрузить файлы Gerber, BOM и проектные документы, и команда KINGFORD предоставит полное предложение в течение 24 часов.