The definition of the impedance board is: a good layer structure can control the characteristics of the characteristic impedance of the printed circuit board, and its wiring can form an easy -to -control and predictable transmission line structure called
The halogen -free PCB has the following characteristics: 1. TG high and conventional PCB board. 2. There is a lower water absorption and high stability. 3. More adapted to environmental protection requirements. 4. Suitable for the production of impedance
MCPCB aluminum substrate structureThe MCPCB aluminum substrate structure consists of circuit layer (copper foil layer), thermal conductivity insulation layer, and metal grassroots. The circuit layer requires a large load capacity, so that thicker copper f
As a substrate material in the manufacturing of the printing line board, the MCPCB copper plate is mainly on the role of interconnection, insulation, and support for the printing line board. influences.The performance, quality, manufacturing, manufacturin
Detailed processing of PCB Gold Finger:1) For PCB boards that need to be plugged in frequently, golden fingers generally need to be plated hard to increase the abrasion resistance of the golden finger.2) Golden fingers need to fall backwards, generally 45
Golden finger function: ① If Shen Jin+Gold -plating finger process is made, the welding of double -sided PCB boards will be very good, the performance of the PCB board will be stable, the pads will be stronger There will be poor contact and short circuit.
Golden fingers are connected parts between the memory slot and the memory slot, and all the signals are transmitted through the golden finger. Golden fingers are composed of many golden -yellow conductive tactics. Because of its gold -plated and conductiv
Golden fingers are connected parts between the memory slot and the memory slot, and all the signals are transmitted through the golden finger. Golden fingers are composed of many golden -yellow conductive tactics. Because of its gold -plated and conductiv
The principle of high -frequency oscillator detecting metalAdjusting the gain potentiometer of the high -frequency oscillator just makes the oscillator be in a critical oscillating state, which means that the oscillator just vibrates. When the detection c
Golden finger classification1. Conventional gold finger (Qiping finger)Located on the edge of the plate neatly arranged the same length and width rectangular pad. It is often used in types of network cards and graphics cards. These gold fingers are more.2
Metal detector is a kind of instrument specially used to detect metal. It uses the principle of electromagnetic induction. The magnetic field produced can sensor the vortex current inside the metal. The vortex current will produce a magnetic field The det
What is Shen Jin PCB?Chemical nickel plating Shen (Enig or ENI/IAU), also known as Shen Jin (AU), chemical Ni/AU, or soft gold, is a metal electroplating process for manufacturing printing circuit board (PCB) to avoid Oxidation and improvement of copper t
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