build pcb

PCB wiring specifications (Huawei) () Design Process A. Create a network table 1. the network table is the schematic diagram and PCB interface file. The PCB designer should select the correct network table based on the principle diagram and the features of the PCB design tool to create a network Table meeting the requi

The PCB is the abbreviation of the printed circuit board (i.e. printed circuit Board). The printed circuit board is a substrate for assembling electronic parts, and a printed circuit board which forms the connection between the points and the printed components on a general base material according to the predetermined design. The main function of the product is to make a variety of electronic 0 components to form a predetermined circuit connection, th

First:Preparations. This includes preparing the component library and schematic. "To do a good job, you must first sharpen the tool." To make a good board, you must draw a good picture in addition to designing the principles. Before designing a PCB, you must first prepare the component library of the schematic SCH and the component library of the PCB. You can use the library that comes with peotel, but it i

Address: http://blog.csdn.net/devincoder/article/details/6598052 The final purpose of PCB layout is to produce applications. When it becomes a formal and valid product, layout's work is regarded as a paragraph. In layout, which common key points should be paid attention to so that the files drawn by myself can effectively comply with the general PCB processing factory rules, so as not to cause unnecessary a

We all know that PCB is to turn the designed schematic diagram into a real PCB Board. Please do not underestimate this process. There are many things that work in principle that are hard to implement in the project, or what others can achieve, but others cannot. Therefore, it is not difficult to do a PCB, but it is not easy to do a PCB.The two major difficulties

Author: Instructor Lu,Hua Qing vision embedded college lecturer. 4. Brief PCB design To compile the schematic diagram or the entire project, this step is to generate a network table and prepare for the work. Open it in project and project options. 4.1 DRC rules In terms of electrical rules, I searched for some annotations on the Internet for reference:Violations associated with buses various types of bus electrical errors (12 in total)Bus indices out

Original article address: PCB decoupling capacitor reasonable configuration Author: ker11f I. Category of decoupling capacitors in PCB The decoupling capacitor can be used for energy storage when the operating voltage of the integrated chip or circuit board is compensated. It can be divided into three types: integral, partial, and inter-board. The overall decoupling capacitor is also called a bypass capacit

PCB design software Cadsoft Eagle Professional v7.5 multilingual Win64 1CDCadsoft Eagle Professiona is an easy-to-use printed circuit board design software that includes a schematic editor, PCB editingand automatic wiring three modules, convenient for the designer to operate. Cadsoft Eagle Professiona Support Chinese versionDownstream products 2015.11 1CD industry-leading

參考资料 通过以下的关键词直接从网络上Google或Baidu就能非常easy的找到以下的资料，这里仅仅是以參考文献的方式做一个整理以及简单的说明。 刘雅芳，张俊辉. 抗干扰角度分析六层板的布线技巧. 天津光电通信技术有限公司技术中心.介绍了六层板的布线技巧，非常有用，画多层板的强烈推荐。 AN1258, "Op Amp Precision Design: PCB Layout Techniques", Microchip.我就是看着这个做运放的PCB的布局布线的，看了非常多遍。 John Ardizzoni. Apractical Guide to High-Speed Printed-Cricuit-Board Layout. Analog Dialogue.快速PCB设计的布局方法，简单看了看，老外写的东西

Address: http://www.dz3w.com/articlescn/pcb/2030.html Introduction to PCB electrical testing methods 1. Electrical Testing In the process of PCB production, it is inevitable that external factors may cause electrical defects such as short-circuit, open circuit, and leakage. In addition, the PCB continues to evolve tow

In this article, we will discuss the PCB cabling design methods and requirements. The layout design of components and the direction of electrical connections may produce different results, and the results may vary greatly, therefore, the structure of printed circuit board components should be correctly designed and the correct PCB design should be selected. I. Design of layout structure of printed line comp

-panel SMD only with the top layer, the straight-type single panel only with the bottom, but the multilayer board of the power layer is not set here (can be in the Design-layer Stack Manager, point top or bottom, with Add Plane added, with the left mouse button double-click after setting, After the point in this layer is deleted with delete), the mechanical layer is not set here (you can select the desired mechanical layer in the design-mechanical layer and choose whether it is visible and wheth

4-layer PCB design (based on AD) Reprinted from:Http://blog.sina.com.cn/s/blog_982d7fa301019f21.html tag: miscellaneous category: technical _ hardware Among the many operating layers provided by the system, there are two layers of electrical layers, namely the signal layer and the inner layer. These two layers have completely different properties and usage methods. The signal layer is called the front-slice

Ctrl+end tune to 0. Q switch mm and mil Ctrl+q/////o+b "Separately according to the" British metric system Switch-----"8 detailed said" 0805 stands for length 80mil width 50mil of which 1mil=10 minus three square inches, 1 inches =25.40mmThat's 0805 of the length is about 2.0MM and the width is about 1.27MM. V+f display of all PCB components Top overlay Layer (note), similar to the wiring inside the pad "Align": check-right-click-align-align bottom

Definition of PCB layer:Solder Mask: Solder masks, refers to the board on the green oil on the part, because it is negative output, so actually there is solder mask part of the actual effect is not on the green oil, but tin plating, silver. Help solder layer: Paste mask, is the machine to use the patch, is corresponding to all SMD components of the pad, the size and Toplayer/bottomlayer layer, is used to open the steel network leakage tin. Key points:

character on the back of the board, two or more layers of characters are used for dual panel. Keepoutlayer (disallow wiring layer) (the red color is the same as the mechanical layer) is simply the frame and shape of the Board. MultiLayer (multi-layer) (silver) All wiring layers are included. Generally, single-and double-sided plug-in pad is on this layer, and the lines are painted on all layers.1. toplayer (top layer) top layer wiring layer, used to draw electrical connection lines between

Article 1 PCB cablingIn PCB design, wiring is an important step to complete the product design. It can be said that the previous preparations are for it. In the entire PCB, wiring is the most restrictive in the design process, the skills are the finest and the workload is the greatest. PCB wiring includes single-sided

In today's fiercely competitive battery power supply market, designers often use dual Panels due to cost restrictions. Despite its significant advantages in dimensions, noise, and performance, the multi-board (Layer 4, layer 6, and Layer 8) solution has prompted engineers to rethink their wiring strategy and adopt dual panels. In this article, we will discuss the correct use and incorrect use of the Automatic wiring function, the design strategy of the current circuit when there is no ground pla

Although semiconductor integration is becoming increasingly high, many applications also have ready-to-use on-chip systems, while many powerful and out-of-the-box boards are becoming more accessible, but many use cases of electronic products still require the use of custom PCBs. In one-off development, even a common PCB can play a very important role. The PCB is the physical platform for the design and the

Despite the increasing integration of semiconductors, many applications also have ready-to-use on-chip systems. At the same time, many powerful and out-of-the-box development boards are increasingly accessible, however, in many use cases, the application of electronic products still needs to use custom PCB. In one-time development, even a general PCB can play a very important role.