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Blind and buried via circuit board: definition and explanation

Blind and buried via circuit board: definition and explanation

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  • Time of issue:2020-08-19 15:09
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Blind and buried via circuit board: definition and explanation

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Speaking of blind and buried via circuit boards, everyone's understanding and understanding of blind and buried via circuit boards is vague. Some manufacturers cannot know exactly what blind vias are, how to treat blind vias and what kind of blind vias it is. What is buried-hole board, the definition and difference of buried-hole board; Let’s talk about the history of PCB board: the name of circuit board appeared from the 20th century to the beginning of the 21st century, and the appearance of circuit board guides the development of electronic products. The progress of the company is advancing by leaps and bounds, and electronic assembly technology has been rapidly improved. However, due to the increase in circuit density, the packaging methods of parts are constantly updated. In order to allow the limited circuit board area to place more high-performance parts, in addition to the thinner circuit width, the diameter of the hole was also reduced from 1 mm in the DIP jack to 0.6 mm in the SMD, and further reduced. Reduce to less than 0.4mm. But it still occupies the surface area, so there will be buried and blind holes. The definition of the blind buried via circuit board is as follows:


  Buried hole


  Buried vias are through holes between inner layers. They cannot be seen after pressing, so there is no need to occupy the outer area. The upper and lower sides of the holes are located in the inner layer of the board, in other words, they are buried inside the board. In short, it's just sandwiched in the middle, you can't see these processes from the surface. Therefore, you must carefully inquire and understand the file before producing the buried-hole circuit board, otherwise it will bring a lot of trouble!


  Blind hole


  Blind buried vias are used to connect the surface layer and one or more inner layers. One side of the hole is on the side of the board and then reaches the inside of the board. Simply put, the surface of the blind hole can see one side and the other. The board of directors is intangible, just like the order in our daily lives. There is only one opening on the surface, and the water goes straight to the ground. If you want to make samples, I suggest you go to Jaguar's 24-hour fast PCB factory to try it. PCB proofing is priced online, with fast response, affordable prices, fast speed and good quality. Through the above introduction, I hope you have an understanding of blind holes. To understand.

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The evaluation system of the circuit board factory should follow the following principles

The evaluation system of the circuit board factory should follow the following principles

Establishing a good cooperative relationship with circuit board factories is conducive to cost reduction, response time reduction and the creation of new market value, etc. The core issue is how to choose the ideal circuit board factory. There are many factors involved in the evaluation of circuit board factories, and the evaluation index systems are diverse, both qualitative and quantitative, and the index weights are also different. Therefore, it is necessary to establish a universal and expandable evaluation index system for circuit board factories. , And the indicator system should follow the following principles:
The use of soft and hard circuit boards?

The use of soft and hard circuit boards?

In our daily life, circuit boards are mostly single-sided, double-sided, or multi-layer boards, rigid boards, metal-based circuit boards, aluminum, copper substrates, thermally conductive fiberboards, etc., do you know what a flexible and rigid circuit board is? Rigid-flex circuit board: refers to a special circuit board made by pressing a rigid circuit board (PCB) and a flexible circuit board (FPC). The main board materials used are rigid board FR4 and flexible board polyimide (PI). Rigid and flexible circuit boards combine the rigid characteristics of rigid circuit boards and the advantages of flexible circuit
Soft and hard circuit board production process

Soft and hard circuit board production process

The flexible and hard circuit board is the flexible circuit board and the rigid circuit board. After pressing and other processes, they are combined according to the relevant process requirements to form a circuit board with FPC characteristics and PCB characteristics. In the past, two hard boards were connected by using soft boards and connectors to connect each other. In order to improve the reliability of the connection between the rigid board and the flexible board, the flexible board is directly fabricated between two rigid boards in the printed circuit board (PCB) factory, which can avoid the subsequent connection process, whether it is a rigid board manufacturer or FPC manufacturers are now able to supply rigid-flex boards. Under the demand for light and thin end products, the

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