high reliability PCB will strictly define the shape, hole and other mechanical characteristics of the tolerance, very good to improve the size of the product quality - improve the fit, shape and function. thin solder resistance layer can lead to adhesion,
Smooth transition of the line, the direction of the line should be perpendicular to the bending direction 4.2 The wire should be evenly distributed throughout the bending zone 4.3 The width of the wire should be maximized throughout the bending zone. 4.4
Reminder: Try to provide a special wiring layer for key signals such as clock signals, high-frequency signals, and sensitive signals, and ensure its minimum loop area. The signal quality is guaranteed by means of shielding and increasing safety distance.
Stamp hole is the motherboard plate inside, the small board and the small board need to be connected between the tendon, in order to facilitate cutting, the tendon will be opened up some holes, similar to the stamp edge of the kind of hole.
There are several categories of transmission line technology, the earliest transmission line is the coaxial transmission line invented by Oliver Heaviside to solve the long-distance transmission problem of the telegraph at that time, and the common forms
High-end equipment can be attached to precision shaped parts, BGA, QFN, 0201 materials. Also can be template patch, loose material hand. Sample and size batch can be produced, proofing from 800 yuan, batch 0.008 yuan/point, no start-up fee
The time required for each lamination cycle depends on the number of board layers in the stack and the materials used. Each individual layer adds an average of 4-5 days to the production process, including drilling, filling and plating time. And board man
Aluminum is a very attractive material with abundant resources, low cost, excellent thermal conductivity and strength. In addition, it is very environmentally friendly and can be used on most metal substrates or metal cores. Due to the advantages of econo
Prevent the surface solder paste from flowing into the hole to cause virtual welding, affecting the mounting. 5. Prevent the tin bead from popping out during over-wave soldering, resulting in short circuit. The realization of the plugging technology of co
Thermal expansibility. The aluminum substrate can improve the heat dissipation function of the product, thus easing the thermal expansion and contraction of the components on the printed board, while improving the reliability of the product and making the
Avoid the concentration of hot spots on the PCB, distribute the power evenly on the PCB board as much as possible, and maintain the uniform and consistent temperature performance of the PCB surface. It is often difficult to achieve strict uniform distribu
The design process begins with circuit design. The first thing you need to do is take out a document called a schematic. You can think of it as a blueprint that shows all the components and how they communicate in detail.You can design circuits on a PC us
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