Nine basic principles of SMB design
Basic principles of SMB design: layout, wiring, wire width, printed wire spacing, selection of components, selection of PCB substrate, PCB anti-electromagnetic interference, PCB heat dissipation, and arc Angle.
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In PCBA processing, which situations need to use post-welding processing?
The reasons for the need for post-welding processing are as follows: 1, the components are not resistant to high temperature, 2, the components are too high, 3, there are a small number of plug-ins in the side of the wave crest, 4, the components plug-in
AOI application strategy for SMT patch production
Application scope: SMT, LED, BGA, CSP flip chip testing, semiconductor, packaging components, lithium industry, electronic components, automotive parts, photovoltaic industry, aluminum die casting, molded plastics, ceramic products and other special indus
Automatic pcba welding process
In the dispensing process, the technical parameters of the patch glue and the dispensing machine can be changed as follows: (1) the rheology of the patch glue. (2) The initial adhesive strength of the patch adhesive. (3) glue point contour. (4) glue point
Wiring technology for PCB High speed signal circuit design specification Skill Sharing
A perfect PCB board not only needs to do the component selection and setting is reasonable, but also needs to have good signal conduction performance.
Multilayer soft PCB classification knowledge detailed
The simplest multilayer soft PCB is a three-layer soft PCB formed by two layers of copper shielding on both sides of a single-sided PCB. The most commonly used multilayer soft PCB structure is the four-layer structure.
The characteristics, problems and solutions of lead-free flux used in SMT plant
Analysis of bad causes of PCBA patch processing plant: 1, PCBA air welding, 2, PCBA short circuit, 3, PCBA warping, 4, PCBA missing parts, 5, PCBA tin beads, 6, PCBA offset
Analysis of advantages of laser marking in the application of PCB circuit board industry
In the PCB industry using laser marking two-dimensional code technology, can realize PCB production, process, quality traceability, and realize the automation, intelligent management requirements.
PCBA board factory: Why use electric soldering iron to produce tin beads
Prevention can be carried out in the following ways: 1, moisture-proof storage of components, 2, choose well-known brand solder paste, 3, adjust printing parameters, 4, adjust reflow temperature curve, 5, try to use reflow welding, reduce manual welding,
Which parts constitute the price of PCB board?
So what are the factors that affect the price of a PCB board? 1, PCB material difference, 2, surface treatment process difference, 3, PCB itself difficulty difference, 4, copper foil thickness difference, 5, customer quality acceptance standard difference
What are the main difficulties in making multilayer PCB board
Traditionally, we define PCB boards with more than 4 layers as "multilayer PCB boards", and more than 10 layers as "high multilayer PCB boards".
PCB proofing design cloth pass rate and design efficiency skills
To provide you with effective skills to improve PCB design spread rate and design efficiency: 1, determine the number of PCB layers, 2, design rules and restrictions, 3, component layout, 4, fan out design, 5, manual wiring and key signal processing, 6, a
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