I want to buy a circuit board? How is the market of the circuit board now?

This one is still relatively easy to buy, and it can be bought in general stores, and then a little better can be selected in the building materials store, and then you can also consider buying it online.

Buying electronic components is like buying a disk, you have to know the detailed specifications before you can buy the right components. Electronic components are much more complex than disks, often causing buyers to not know how to order, and sellers do not know what you need, the main purpose of this article is to guide readers to make the right order, and then complete the hardware and software experiments.

Generally, genuine electronic components will be marked with three pieces of information in the blank space of the component: manufacturer, component number and production date. Marking the manufacturer is a responsible attitude, some directly print the company's English name, and others, some companies directly print the company's unique symbol to represent the manufacturer, and further print which place the manufacturer produces.

The component number represents the unique specifications and application specifications of the component, in most cases, the components with the same number should be interchangeable, but in some special occasions, some differences in some hardware often cause the abnormal operation of the entire electronic circuit, which often takes a long time to see the reason. Here we will assume that electronic components with the same part number from different manufacturers should be interchangeable. When purchasing, we should prioritize components from the same manufacturer first, and consider alternatives when the conditions are not suitable.

The third number marked on the component should be the date of production, usually represented by four numbers, the first two numbers are the year of manufacture, and the last two numbers are the weeks of manufacture, such as 0038 represents the production of this component in the 38th week of 2000.

If you want to buy a circuit board, I recommend that you go to a computer repair place to buy it, because he will have this kind of circuit board assembled by himself, and it is also very cost-effective.

For the needs of circuit board customization, you can consider choosing the Jiepu Extreme Speed PCB Super Factory, which is an Internet gene factory, committed to building a collaborative manufacturing service platform for the electronic information industry, serving consumer electronic communication equipment and industrial control.

China's semiconductors will develop rapidly

Wafers are the basic raw materials for the manufacture of semiconductor devices, and wafer production capacity plays an important role in the development of the semiconductor industry. While the U.S. has continued to invest steadily in semiconductor manufacturing technology and wafer capacity, Asian countries and regions are also expanding production capacity at a faster pace. The U.S. has only the world's largest production capacity, with more than 80% of its production capacity in Asia.

In 2019, six new fabs were built around the world, all outside the United States, four of which were in China.

According to **, by 2030, the wafer production capacity of the United States will drop to 10%, while Asian countries and regions will account for 83%, and Chinese mainland will become the country with the largest production capacity.

In the context of rapid development of production capacity, there are still opportunities for rapid development of China's semiconductors. According to IBS**, China's semiconductor market** will reach $538.5 billion by 2030.

According to IBS**, the proportion of semiconductors in the Chinese market from local Chinese companies will gradually increase from 2020 to 2030, and will reach it by 2030. It is estimated that by 2030, 69% of consumption will come from local Chinese companies, and the demand will mainly come from data centers, consumer electronics, automotive, medical and other applications.

The expansion of the scale of the semiconductor industry requires strong support from technology and capital, and the improvement of technology requires time accumulation. Although there is still a large gap between China's semiconductor industry and developed countries such as the United States, with China's large investment in technologies such as 5G, AI, Internet of Things and cloud computing. The "new infrastructure" represented by 5G networks and industrial Internet of Things will drive the rapid growth of the semiconductor industry, and it is expected that by 2030, China will achieve world leadership in many key technology fields.

Is it the kind inside the electrical appliance??? Copper.

The official website delivers on time, the process is good, the yield is high, and the 24-hour expedited Shun Yijie PCB proofing is good and fast.

Are you asking what the circuit board is for or what? If it is a use, it can be used as a motherboard for various electrical appliances.

Circuit board is also called circuit board, PCB board, the types of circuit board also include aluminum substrate, FR4 board, CEM-1 board, according to the technical process can be divided into, printed circuit board (copper etching circuit board), rosin circuit board, lead, lead-free tin spraying circuit board, OSP process, gold process, etc., according to the thickness can also be divided into thickness.

Circuit boards can also be divided into single-sided, double-sided, multi-layer boards, etc., we all know that circuit boards can save space, circuit boards (circuit boards) make the circuit miniaturized, and look more intuitive. It plays a crucial role in fixing the circuit and optimizing the layout of the appliance to save space.

The circuit board is mainly composed of pads, vias, mounting holes, wires, components, connectors, fillers, electrical boundaries, etc.

The main advantages of using printed board are:

1.Due to the repeatability (reproducibility) and consistency of the graphics, errors in wiring and assembly are reduced, and time is saved in maintenance, commissioning and inspection of equipment;

2.The design can be standardized, which is conducive to interchangeability;

3.High wiring density, small size, light weight, conducive to the miniaturization of electronic equipment;

4.It is conducive to mechanized and automated production, which improves labor productivity and reduces the cost of electronic equipment.

The manufacturing method of printed board can be divided into two categories: subtraction method (subtraction method) and addition method (addition method). At present, large-scale industrial production is still dominated by the corroded copper foil method in the subtraction method.