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What is HDI and what is HDI circuit board?
02-142023
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What is HDI and what is HDI circuit board?

What does HDI circuit board mean? It is easy to understand what HDI circuit board means from the perspective of the circuit board industry. First, HDI is High Density Interconnection, which means high density interconnection. HDI circuit board or HDI circuit board, HDI board, HDI blind buried plate, etc. Are printed circuit board is a special term name, simply said that HDI board is the circuit board industry considers appropriate and the use of micro blind buried hole technology and stacking method processing high density multi-layer PCB board a precise process technology.

HDI is a high density interconnection (HDI) made of printed circuit board, printed circuit board is a structural component formed by insulating material and conductor wiring. When the printed circuit board is made into the final product, it is fitted with integrated circuits, junction transistors (tubes with three electrodes, diodes), passive components (resistors, capacitors, co-transmitters, etc.), and various other electronic components. With the help of wire connection, can form electronic signal connection and function. Because of this, a printed circuit board is a platform that provides component linkages to hold the bases of bonded parts.

Because the printed circuit board is not an ordinary terminal product, because the definition of the name is a little out of order, for example: private computer with the mother board, called the host board and can not be directly called the circuit board, although there is a circuit board in the host board but not one, because the evaluation of the industry when the two related language is not the same. Another example: because there are integrated circuit parts loaded on the circuit board, so the news station called integrated circuit board (IC board), but essentially it is not equal to the printed circuit board.

HDI board is generally considered to be appropriate and the use of the lamination process, the more the number of lamination, the higher the technical difficulty of hdi board processing. Is we often say that the 1 level HDI board, 2 level HDI board, 3 level HDI board, 4 level HDI board, etc., the higher the order of the increase in the number of product levels, the usual HDI board is basically 1 level of the layer for the 1 level hdi board, the high level HDI circuit board is considered appropriate and the use of 2 times or more of the production technology of the layer, At the same time, it is considered appropriate to use advanced PCB manufacturing technology such as hole stacking, electroplating and laser direct drilling.

PCB circuit board

High level HDI circuit boards are mainly compact electronic products preset by small volume users, such as 4G5G mobile phones, advanced digital cameras, IC carrier boards, high-grade vehicle choke motherboards, etc. It is generally considered appropriate and the use of plate can be parallel preset, a plate volume 1000VA (height 1U), natural cooling, can be directly put into the 19 "frame, the maximum parallel 6 plates. The product is considered appropriate and the use of digital signal disposal (DSP) technology and a number of patented technologies, with a full range of suitable for the load has experience and strong transient transfer experience, can not think about the problem of load power factor and peak factor.

With the rapid development of science and technology, the electronic product presets are increasing the performance of the whole machine at the same time, they are also trying their best to reduce the size from large. In small-scale portable products, from mobile phones to smart weapons, small is the constant quest. Because this high density integrated HDI circuit board technology can make the terminal product preset more small scale, can also satisfy the higher standard of electrical production quality, performance and speed. HDI circuit board so far widely used in mobile phones, digital (photography) camera, MP3, MP4, laptop, transportation electronics and other digital products, which to the most popular 4G/5G smart mobile phone application is the most widely.


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