Category Archives: Uncategorized

There are too many PCB manufacturers, and some larger ones will choose customers. For example, your factory is small and the order quantity is not enough, so they may not cooperate with you. Some small factories may have the technology, but by the time of mass production, they may not be able to meet your […]

The basic principles of high-speed PCB layout are as follows: ① Considering the distribution parameters of circuit components under high-frequency working conditions, all components should be arranged evenly, neatly and compactly on the double-sided circuit board, so as to minimize and shorten the lead length between components. ② Analog circuits should be separated from digital […]

1. process window of SMT processing factory Process window is usually used to describe the available limit range of process parameters, and it is the technical term of “USL-LSL” concept in SMT process field. For example, according to experience, the lowest temperature of reflow soldering is generally 11~12ºC higher than the melting point of solder. […]

Advantages and disadvantages of flexible circuit board Strengths: (1) It can be bent, rolled and folded freely, can be arbitrarily organized according to the requirements of spatial layout, and can be arbitrarily moved and elastic in three-dimensional space, so as to achieve the integration of component installation and wire connection; (2) Using FPC can greatly […]

In the process of PCBA processing, reflow soldering is a very important process, which will be divided into three dimensions: basic concept, process flow and process characteristics. PCBA reflow soldering has good manufacturability, and there are no special requirements for the layout position, direction and spacing of components. The layout of components on reflow soldering […]

The layout of PCB Layout design is described from three aspects: right-angle layout, differential layout and serpentine: I. Layout design right-angle routing (three aspects) The influence of right-angle routing on the signal is mainly reflected in three aspects: first, the corner can be equivalent to the capacitive load on the transmission line, slowing down the […]

1.layout design PCB wiring and layout isolation criteria: strong and weak current isolation, large and small voltage isolation, high and low frequency isolation, input and output isolation, and the demarcation standard is one order of magnitude difference. The isolation method includes: the space is far away and the ground wire is separated. 2. The crystal […]

Circuit board simulation is no longer an option but an inevitable way for most layout designs today. EDA industry is the key factor to promote the rapid development of the global electronic industry, and its market size is as high as $1 trillion. Most of the sales are monopolized by several big companies (measured by […]

When it comes to outsourcing, the first thing that people think of is to send products or parts that they can’t or don’t want to produce to other factories for OEM. In fact, driven by the increasingly fine social division of labor, modern outsourcing is not only the outsourcing of products, but also the initial […]

Drilling jig is one of them, but 90% of the jigs have been wave welded. This kind of jig is made of hard computer gongs, and some can move the twist drilling equipment or other drilling devices to the position of each hole accurately by moving the mold. A typical practice is to leave a […]