Actively promote the "PCB design - manufacturing - PCBA processing (SMT mount)" one-stop service model, with the goal of "creating the best overall value for the project", to eliminate the inconvenience of multi-party communication, fo...
When deciding the number of PCB design layers, the following issues should be taken into account: 1Where will the PCB be used? PCBS are used in various types of simple to complex electronic devices. Therefore, the first thing to figure out is whether the
The choice of the number of layers also depends on the type of signal they need to transmit, the signal is divided into high frequency, low frequency, ground or power supply, for applications requiring multi-signal processing, you need multi-layer PCB, th
In order to achieve a good combination of solder and weldment, the welding surface must be kept clean. Even weldables with good weldability may produce harmful oxide film and oil stains on the surface of weldparts due to storage or contamination. The dirt
PCB boards are generally stored vertically on shelves during the semi-finished product stage. Incorrect stacking and placement of boards during storage can cause mechanical deformation.
The patch pin accurately detects the area of the pad contact pin to avoid affecting the welding 7. Through hole pinAccurately detect the hole size and number of attributes of the through hole pin to avoid the purchase of components cannot be used 8. Press
For circuit boards with components on both sides, consider that the second reflow soldering will wipe off the components on the soldered side.
First of all, we must optimize the key signal wiring on the PCB to avoid EMI problems, more than the layer change hole, we can punch a ground hole around the key signal hole to provide additional return path for the key signal hole
The outer frame (clamping edge) of the PCB assembly should adopt a closed-loop design to ensure that the PCB assembly will not be deformed after it is fixed on the fixture.
Vertical refers to the component body perpendicular to the circuit board installation, welding, its advantage is to save space, horizontal refers to the component body parallel and close to the circuit board installation, welding, its advantage is that th
The circuit board is mainly composed of welding pad, through hole, mounting hole, wire, component, connector, filling, electrical boundary and so on.
It is divided into PCB electroplating hard gold (gold alloy) and water gold (pure gold) process, hard gold plating and soft gold bath liquid composition is basically the same.
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