Here is the procedures of making four-layer PCB for your reference:
Processing data = >Board cutting = > Inner layer trace = > Outer layer trace= > Drilling = > Electroplating = >Solder mask = >Silk-screen= > Surface treatment =
Here are certain types of design standards of PCB for your reference:
TS—S0902010001 (Information technology equipment design specification of PCB safety regulations)
TS—SOE0199001 (Electronic device design standard of forced air cooling and heating
As you probably know, scrap PCB is a mixture of glass fiber fortified resinand a variety of metals, which is a typical electronic waste. That’s to say, if these electronic waste isn’t properly handled, which will not only lead to a large loss of useful re
You know, at low frequency, the impedance of an inductor coil is proportional to the frequency. However, as the frequency turns high, the impedance of the whole inductor coil will decrease rapidly due to the existence of the inductance distributed capacit
There are five working voltage of common various colors LED for your reference:
White LED is 3.0–3.4V; Red LED is 1.8–2.2V; Blue LED is 3.0–3.2V; Green LED is 2.9–3.1V; Yellow LED is 1.8–2.0V.
Not really. Because every signal circuit is designed as double redundancy, which is used to protect the circuit in a better way. Let alone the complicated CPU.