Many customers are looking for PCB circuit board manufacturers and don't know how to choose. They accidentally choose small processing factories or workshops. As discussed earlier, they can switch orders to other strong manufacturers for sample production in the next second, which leads to a lot of wasted opportunities. When looking for a printed circuit board manufacturer, it is important to conduct a survey at the factory in order to effectively assess the manufacturer's strength.

Today we bring you a complete version of the production process for circuit boards, hoping to give you a deeper understanding of circuit board production! Cutting materials Purpose: According to the requirements of the engineering data MI, cut into small pieces of production boards on large sheets that meet the requirements. Small pieces of boards that meet customer r

Assuming that the frequency of a digital logic circuit reaches or exceeds 45MHz~50MHz, and the circuit operating above this frequency occupies a certain proportion of the entire electronic system (such as 1/3), it is usually called a high-frequency circuit (multi-layer circuit board). High frequency circuit board planning is a very chaotic planning process, and its wiring is crucial to the entire planning! First move, wiring of high and multi-layer circuit boards High frequency circuits often have high integration and high wiring density. Choosing multi-layer circuit

What inspections are needed during the production process of printed circuit board to reassure customers? Many customers worry about quality issues when selecting suppliers. Today, the editor of Weifu PCB circuit board will share with you how we inspect circuit board at every stage of the entire production process? Interested friends, don't miss out! Firstly, incoming inspection: acceptance inspection of raw materials, auxiliary materials, outsourc

At present, there are two ways for us to electroplate PCB circuit board: full plate arc plating and graphic plating. Graphic electroplating is a process in which a printed circuit board undergoes graphic transfer to protect the copper part of the conductor that does not require copper plating with a dry film. The wires and connecting plates that require copper plating are then selectively electroplated with copper, followed by electroplating with Sn (or Sn/Pb) corrosion inhibitors. After electroplating, the PCBA Circuit Board ca

With the development of the electrical era, there are more and more electromagnetic wave sources in human living environments, such as radio broadcasting, television, microwave communication, household appliances, power frequency electromagnetic fields of transmission lines, high-frequency electromagnetic fields, etc. When the field strength of these electromagnetic fields exceeds a certain limit and the action time is long enough, it may endanger human health; It will also interfere with other electronic devices and communicati

1. Composite printed circuit board substrate Composite substrate is also called [powder board]. The most common composite substrate copper-clad laminates currently on the market include single and double sided CEM-1, CEM-3 semi glass fiber board, 22F, etc., with wood pulp fiber paper or cotton pulp fiber paper as the reinforcing material. At the same time, fiberglass cloth is used as surface reinforcement material, and the two materials are made of

1. As mentioned above, generally electrolytic copper foil is a product processed by wool foil electroplating or copper plating. If the peak value during the wool foil production process is abnormal, perhaps the crystallization branching of the coating during the galvanizing/copper plating process is poor, and the peeling strength of the copper foil itself is insufficient. When bad foil is pressed into a thin sheet to form a printed circuit board, copper wires can fall under the impact of external forces as they penetrate the ele

Regarding the production of multi layer circuit boards, you must first draw the circuit schematic diagram according to the functions that the electronic product needs to realize. There are special drawing tools, which are like understanding each component with wires. The PCB circuit board design software will generate a physical connection file based on the circuit schematic diagram and connect all the components. During actual production, the conn

In recent years, the rapid increase in smartphone production has driven the demand for PCB circuit boards. Especially this year, my country has become a leader in 5G. 5G mobile phones will usher in large-scale widespread replacement applications, thus bringing new growth demand to the PCB circuit board market. There are many printed circuit board manufacturers in mainland China, most of which are located in the Pearl River Delta and Jiangsu and Zhejiang regions. Th

With the application of PCB circuit boards in various major electronic products, PCB circuit board repair has also become a popular industry. Today, Brother Xiaojie will briefly share his views on the current PCB circuit board maintenance. At present, there are various industries that use circuit boards in our country. In the early stages of production, the production process and raw materials will be determined according to their own use needs. However, as the freq

In PCB circuit design, there will be times when IC needs to be replaced. Let`s share the tips when replacing IC to help designers become more perfect in PCB circuit design. 1. Direct substitution Direct substitution refers to directly replacing the original IC with other IC without any modification. The main performance and indicators of the machine will not be affected after the substitution.

In the process of designing high speed PCB circuit board, seemingly simple via holes that leave no sound are likely to bring significant negative effects to the circuit board. Today, Weifu Precision Manufacturer will talk to you about how to reduce the adverse effects of parasitic effects in through-hole design in high speed PCB circuit board: 1. The pins of the power supply and ground should be perforated nearby, and the shorter the lead between the vias and pins, the better, as

The design of a Printed Circuit Board is a complex and meticulous process that requires consideration of multiple factors to ensure the effectiveness, reliability, and performance of the design. Choose appropriate materials for the combination of soft and hard boards according to the application requirements. Consider the electrical, mechanical, thermal, and processing properties of the materials to ensure that the selected materials meet the design requirements. Layer planning re

The circuit layer in a double-sided aluminum substrate is mainly composed of copper foil, which is mainly used for conductivity. This layer is the transmission path of electronic signals, responsible for connecting electronic components together to form a complete circuit system. Through the circuit layer, current can flow throughout the entire printed circuit board, thereby achieving the normal operation of the equipment. Due to the wiring on both sides of the double-sided aluminum substrate, it is necessary to use appropriate wiring c

Whether it is the layout of the devices on the PCB board or alignment and so on have specific requirements. For example, the input and output lines should try to avoid parallel, so as not to generate interference. Two signal lines parallel alignment is necessary to add ground isolation, two adjacent layers of wiring to try to perpendicular to each other, parallel easy to p

Single-sided circuit board inspection defect definition.

Many customers looking for PCB circuit board manufacturers , do not know how to choose, not a careful selection of small processing plants, small workshops, talk in front of a good, the next second turn hand to place orders to other manufacturers of strength for prototype production, so that a lot of wasted time. When looking for PCB circuit board manufacturers, be sure to go

In the process of designing high-speed PCB circuit boards, the seemingly simple over-hole, a silent is likely to bring a great negative effect on the circuit board. Today WeiFu circuit board manufacturers to tell you how to over-hole design in the high-speed PCB circuit board, to reduce the adverse effects of the parasitic effect of the over-hole:.

In recent years, the rapid increase in the production of smart phones has driven the demand for PCB Circuit Boards. Especially this year, China has become the leader of 5G, 5G cell phones will usher in a large-scale throughout the replacement of the use, thus bringing a new increase in demand for PCB circuit board shopping malls. In mainland China, there are many PCB circuit board manufacturers, most of which are located in the Pearl River Delta region and Jiangsu and Zhejiang

Printed circuit board printed circuit board laminate raw material reasons. 1, as mentioned above, the general electrolytic copper foil is through the w

Assuming that the frequency of the digital logic circuit reaches or perhaps exceeds 45MHZ~50MHZ, and the circuit operating above this frequency used to account for a certain amount of the entire electronic system (let's say 1/3), it is usually called a high frequency circuit (multilayer circuit board). High-frequency circuit board planning is a very messy planning process, and

1. For circuits that require repeated bending, it is best to use a single layer of flexible construction and use RA copper to increase fatigue life.

PCB copy board, the industry is also often referred to as circuit board copy board, circuit board cloning, circuit board imitation,