1. What PCB back drill? In fact, back drilling is a special kind of depth control drilling. In the production of multi-layer boards, such as 12 layer boards, we need to connect the first layer to the ninth layer. Usually we drill through holes (once), and then use copper. In this way, the first floor [...]
Circuit board is the most active industry in the contemporary electronic component industry, and its growth rate is generally about 3% higher than that of the electronic component industry. From the perspective of development mode, China's circuit board industry continues to grow at a high speed, and its import and export have also completed a [...]
1. Brief introduction of capacitor Capacitance, also known as "capacitance", refers to the charge storage under a given potential difference. It is recorded as C, and the international unit is farad (f). Generally speaking, the charge will move under the force in the electric field. When there is a medium between the conductors, it will [...]
There are lots of resources to learn about electronic circuits, so where do you start? What do you need? In what order? If you don't know what you need to learn, it's a waste of time. Step 1: learn the closed circuit loop If you don't know what circuits need to work, how can you [...]
The nominal noise in an electronic circuit can be generally considered to be a general term for all signals other than the destination signal. At first people called the electronic signals that caused the noise of such sound equipment as radios. However, not all the effects of non-purpose electronic signals on electronic circuits are related [...]
Circuit board welding is an important part of electronic technology. Correct welding joint design and good machining technology are the key factors to obtain reliable welding. Xiaobian for you to finish the circuit board welding technology paper, I hope you like. Circuit board welding technology paper I Some understandings on the welding and wiring of [...]
Typical applications: Used for bonding, sealing, insulation and fixing of electronic components, inductors, capacitors, circuit boards, cables, data cables, connectors and solder joints. 2. FPC reinforcement /IC chip encapsulation UV glue FPC reinforced UV adhesive, UV curing resin, fast fixing speed, high adhesion and bonding strength, can maintain long-term bonding, has good toughness, good elasticity, [...]
First, the principle of brief introduction Induction cooker is the application of the principle of electromagnetic induction heating, the use of current through the coil to generate a magnetic field, the magnetic field line through the bottom of the iron pot to form a closed loop will produce countless small eddies, so that the iron [...]
PCB is made of different components and a variety of complex technological processing, and the structure of PCB circuit board has single-layer, double-layer and multi-layer structures. Different hierarchical structures have different ways of making. This article will introduce in detail :PCB circuit board components name and the corresponding use, and PCB circuit board single-layer, double-layer, [...]
Process comparison 1. Before laminating the PI ﹣ covering film with the FPC circuit layer, windows with different sizes and shapes should be cut at corresponding positions according to the circuit design requirements. 2. The traditional manufacturing method is mainly die-cutting stamping, which has the problems of low machining accuracy and high manufacturing cost. With [...]