Design of Rectangular Sheet Type Component Solder Pad

Abstract:Thought the design software has been very advanced and convenient, and has been improving fast, it can’t satisfy all the designer, especially no solder pad library responding to all kinds of SMC or SMD. So analyze the influences of PCB solder pad on the reliability of PCA, and according to the relative quality requirements, give some simple design methods.Solder Pad Design:1. Rectangular Sheet Type Component Solder Pad:The inspection of welding quality of rectangular components, whet...

PCB Requirements for Typical SMT Equipment

Introduction:There are many types of SMT equipment. How to make the design of PCB meet its requirements is decided by the type of equipment. The basic requirements of typical SMT equipment to PCB in China are summarized as follows.Edge (Break-away tab):PCB in the process of SMT equipment is generally completed by rail transportation. When locating in equipment such as patch machine and wave soldering, it is guaranteed that it can be fixed reliably. Generally, more than 5mm should be reserved at ...

SMT

Introduction of MVI & ICT & X-Ray Inspection

MVI (Manual visual inspection):Manual visual inspection, shortly as MVI, is a method to detect defects in digital circuits by naked eye, magnifier and microscope in SMT production. In the manual visual inspection, you can also make a comprehensive judgment with the help of metal needles or bamboo toothpicks, and with appropriate force and speed across the QFP pins. In addition, MVI has a good effect in checking whether the IC pin has pseudo soldering or bridge connection. MVI with the aid of mag...

MVI (Manual visual inspection) ICT (In-Circuit Test) AXI (Automated X-Ray Inspection)

PCB Layout and The requirements of The Drawing of Pads

Introduction:In SMT production process, the layout of PCB and the pattern of component solder pad are very important to production efficiency and product quality. Through long-term practice, it is found that good layout and welding panel graphics can greatly improve production efficiency and product quality. Principles of Component Arrangement:The component arrangement at design time should conform to and follow the following principles.a) Principle of uniform heat distribution of welding. ...

PCB Layout PCB Design

HardworX Shenzhen Innovation Tour 2018--- PCBWay Factory Visit

---HardworX Shenzhen Innovation Tour 2018--- PCBWay Factory Visit (If you want to know more about the details of this tour, please click here!)Abstract: On November 12, 2018, PCBWay was honored to receive a team from Australia and visit our factory, which was led by Ms. Vela who was the founder of HardworX. HardworX is a company which helps growth stage startups and scaling SMEs unlock the power of hardware by demystifying manufacturing and the hardware supply chain, helping them get to scale su...

Analysis of Common Problems of PCB Cleaning

Introduction:With the rapid development of PCB manufacturing technology, PCB cleaning technology must be constantly updated and developed. Various cleaning technologies emerge at the right moment have different advantages and disadvantages in the process of their use. This paper discusses the analysis and solutions of the problems that often occur in these PCB cleaning technologies.1. White Spots:One of the problems encountered after the formation of the cleaning process is that after the PCB...

PCB Cleaning

The Purpose of PCB Design

Introduction:The purpose of any design is to be able to manufacture successfully and effectively. The design is ineffective if it is divorced from the purpose. PCB design is also for better achieve and improve the speed, cost and quality of manufacturing.1. Design of Edge span style="color:#333333;background:white">Positioning Hole:In order to realize production, PCB panel design and layout must be done well. The edges, on both sides of the PCB board, must be not reserved less than 5 mm, and ...

PCB Design

Enter the PCBWay Thanksgiving Event Page, Get 500 Beans to Redeem Gifts!

Introduction:As we all know, Thanksgiving is coming! Are you looking forward to it? After the preheating of Christmas and Halloween, our activities have come to a climax this year. We have also prepared a surprise activity for Thanksgiving, and this activity is more simple and wonderful than the previous two activities! Let's see how we can get in!Enter the PCBWay Thanksgiving event page, Earn 500 Beans!(Coming soon)Time: November 21 - November 23Participant: All customersParticipation Metho...

PCBWay Thanksgiving

Nov. & Dec. Shopping Festival 2018------From October 25 to December 25, A Lot of Surprises Are Coming to You!

Introduction:How time flies! There are only two months left in 2018! Do you feel that this year has passed too quickly? Do you still remember the activities of Christmas and Halloween held in PCBWay last year? Are you still attached to last year's activities? So, let me tell you something very exciting, that is PCBWay's 2018 surprise activities. Do you want to know what activities are available? Let me elaborate on our activities this year.First surprise---Free Prototyping for Christmas ...

Discount Coupon Halloween Free Prototyping Christmas PCB Nov and Dec Shopping Festival 2018

Determining SMT Process and Its Packaging

Abstract:Standardized design is good for the accomplishment of electric with SMT and the improvement of production efficiency. Introduce the standardized design of process flow, the choice of components, the layout of PCB, the requirement of SMT machine for design. The standardized design will assure the products to be of higher manufacturability, quality and production efficiency.Determine the Technological Process:In the initial stage of product design, the designer should basically determine ...

High Frequency PCB Layout Techniques

Introduction:The components are developing towards high speed, low consumption, small volume and high anti-interference. PCB design is an important stage of electronic product design. It can realize the connection and function between electronic components, and is also an important part of power circuit design. High frequency circuit has the higher integration and the higher layout density, so it is very vital how to make layout more reasonable and more scientific.PCB can realize the connection ...

Signal Integrity Analysis for High-speed PCB

Signal Integrity Analysis for High-speed PCBIntroduction:As large-scale and ultra-large-scale integrated circuits are more and more applied to power circuit systems, the requirements of users are higher and higher. As a result, the integration scale of chips is larger and smaller, the number of pins is larger and higher, and the frequency is higher and higher. However, the rapid development of the circuit brings about such a problem: the chip size is getting smaller, and the pins are generally i...

Influence of PCB Quality Problem on Wave Soldering and Reflow Soldering

Background:After the production of PCB, the original components need to be assembled to be used further. At present, the most common assembly methods are wave soldering, reflow soldering and the combination of the two technologies. The quality of PCB has great influence on the assembly quality of the three processes.Wave Soldering:Technological introduction: Wave soldering is a bulk soldering process used in the manufacture of printed circuit boards. The circuit board is passed over a pan of mol...

Wave Soldering, Reflow Soldering

How to Design a PCB Panel for Less Money?

Introduction:PCB panel is a combination of several PCB unit boards with various possible connection modes, as shown in the figures below.Typical, when a hardware designer a PCB, he considers the electrical signal and the layout of the components on the circuit board, focusing on the function of the product. Less consideration is given to PCB manufacturing and assembly. To make PCB production smooth, especially for SMT assembly, special attention should be paid to PCB assembly design.I. Pur...

panel

Kicad Like a Pro, 2nd edition from Peter Dalmaris

Today we'd like to recommend an ebook from Peter Dalmaris - Kicad Like a Pro, 2nd edition. This book will teach you to use KiCad. Whether you are a hobbyist or an electronics engineer, this book will help you become productive quickly, and start designing your own boards.For people already familiar with previous versions of Kicad, the transition is seamless, and the changes make its usage easier than before. Features and workflows that used to be broken or problematic, now work (I am looking...

Kicad PCB design

Defects Contrast between Wave Soldering and Reflow Soldering

Introduction:As a kind of traditional welding technology, wave soldering and reflow soldering play an active role in the field of electronic manufacturing in the assembling process of electronic products. The quality of welding is related to product performance, reliability, service life, etc., and will affect each subsequent process flow. By analyzing and comparing the defects in the process of wave soldering and reflow welding from the quality control before welding, production process materia...

Wave Soldering, Reflow Soldering

Notes for Gerber files Generated from Eagle 9.20

Several days ago, Eagle released the lastest version 9.20, which still provide the convenient button for generating Gerber files. But what followed was some file problems.When opening Eagle.brd file and clicking the "CAM processor", you need be aware of the option of soldermask layers. Please cancel checking the "Nagative Polarity" which is checked by default, shown as below screenshot:If there is no board outline in the profile layer, please check and add the #Dimension and...

Eagle; Gerber; PCB design

The Main Factors Affect the Quality of SMT Soldering and Its Solutions

Abstract: SMT process as the core of the electronic assembly process, the welding quality affects the overall quality of the products. For SMT industry, high quality welding quality is the basis of products, and the capital and leverage for products to compete with others. The following are some main factors affecting SMT welding quality.Materials:As one of the important components of SMT, the quality and performance of materials directly affect the quality of backflow welding, so that the follo...

SMT Solder paste Stencil 3. Scraper Reflow Welding

Ball Grid Array (BGA)

Background:In the information age, the update speed of electronic products is accelerated. In one hand, the popularity of computers, mobile devices, portable devices and other products has made people's demands on electronic products higher and higher, which means that the performance of products must be improved in order to meet people’s requirements. The feature size of IC chip should be smaller and smaller, and the complexity should be increased. That is to say, the number of I/O in the c...

Ball Grid Array (BGA)

The Application of AOI System in PCB

—created by PCBWayIntroduction: With the rapid development of IC industry and the improvement of special components as well as multifunction of electronic components, the number of pins in unit area are substantially increasing, which accelerated the transfer of QFP & TCP to BGA & CSP and promoted the obvious change of PCB technology. PCB products are also developing towards ultra-thin, small components, high density and fine spacing. As the density of components on the PCB increases, PC...

PCB AOI

1 2 3 4 5 6 7 8 9 10 11 ...
Ranking Name Answers
1 PCBWay Support 10
2 S****qui 2
3 А**рей 1
4 J*das 1
5 Engineer 1
Back to top