When a PCB engineer lays out a product, it involves more than just component placement and routing. Designing the power and ground planes in the inner layers is equally critical. Managing inner layers requires consideration of power integrity, signal integrity, electromagnetic compatibility, and Design for Manufacturability. Difference Between Inner Layers and Outer Layers Outer layers […]
Typically, PCB uses V-CUTs. Stamp holes are more likely to be used when dealing with irregular or circular boards. Stamp hole bridges connect boards (or empty boards) primarily to provide support, ensuring the boards do not separate during processing. This also prevents mold collapse during molding. Stamp holes are most commonly used to create independent
Proper installation of electronic components on the PCB is crucial to reducing soldering defects. When arranging electronic components, avoid areas with high deflection values and high internal stress. Distribute components evenly, especially those with high thermal conductivity. Avoid using oversized PCBs to prevent expansion and contraction. Poor PCB layout design can affect the PCB’s manufacturability and
Importance of PCB Layout about Electronic Components in PCBA Read More »
The solder mask layer on a PCB refers to the part of the board covered with green solder resist ink. Areas with solder mask openings are left without ink, exposing the copper for surface treatment and soldering components. Areas without openings are covered with solder mask ink to prevent oxidation and leakage. Three Reasons for
How to Prevent Solder Mask Omission in PCB Design Read More »
In computer memory modules and graphics cards, there is a row of golden conductive contact pads, commonly known as “gold fingers.” In the PCB design and manufacturing industry, the PCB gold finger (Gold Finger or Edge Connector) refers to the connector used as the external interface for the PCB to connect to external devices. In
Entire Process of Gold Finger PCB in Design and Manufacturing Read More »
The Bill of Materials (BOM) for electronic products is a straightforward yet intricate task. With numerous components, even a minor oversight can lead to procuring the wrong components. Manual matching increases the risk of errors. If mistakes occur during the BOM matching stage, subsequent procurement inquiries and customer quotes are likely to be flawed as
Assisting BOM Error Checking to Support Component Procurement Read More »
PCB design requires attention to numerous safety distances, including trace spacing, text spacing, and pad spacing. These considerations can generally be categorized into two types: electrical safety distances and non-electrical safety distances. 01 Electrical Safety Distances Trace-to-Trace Spacing For mainstream PCB manufacturers, the minimum spacing between traces must not be less than 0.075mm. The minimum
Introduction Nowadays, circuit boards use more SMD components than plug-in components, but for those electronic products with higher heat dissipation requirements, the performance of plug-in components will be better than that of SMD components. In addition, the external interface of the motherboard and the devices of the connector all use plug-in pins, such as USB,
How to avoid pitfalls in square slots and square holes of device pins Read More »
BGA Overview BGA is a type of chip package, short for Ball Grid Array in English. The package pins are ball grid arrays at the bottom of the package, and the pins are spherical and arranged in a grid-like pattern, hence the name BGA.Many motherboard control chips use this type of packaging technology, and the
All the BGA welding problems you want to know are here Read More »
DIP Overview DIP is a plug-in. The chip using this packaging method has two rows of pins, which can be directly soldered on a chip socket with a DIP structure or in a soldering position with the same number of solder holes. Its characteristics are that it can easily realize the perforation soldering of the
The pitfalls that must be mentioned about DIP devices Read More »
Many friends will encounter the situation of graphic misalignment when using wonderfulpcb DFM Services software to import Gerber files. The reason for the misalignment of graphics is that there are unknown objects outside the design file frame, and the canvas size of each layer is different, which causes the coordinates to change with the canvas size
Easy to use! No need to worry about PCB graphic alignment Read More »
Ensuring the reliability of electronic product designs is crucial. Manufacturability design encompasses three key aspects: PCB manufacturability design, PCBA assembly design, and cost-effective manufacturing design. Among these, PCB manufacturability design focuses on the manufacturing perspective of PCB boards, considering process parameters to improve production yield and reduce communication costs. Design considerations include line width and
Why do PCB design need assembly analysis? It is to consider PCB assembly in the early design stage to get the best product.There is a common problem that may be less common among PCB design masters, but it is still common for novices, that is, the initial circuit board design does not fully consider the
The PCBA hardware design and manufacturing process involves many links. General hardware products are composed of several stages: hardware design, which includes PCB drawing, PCB circuit board manufacturing, component procurement and inspection, SMT patch processing, plug-in processing, program burning, testing, ageing, and other processes. Let us explain the role of DFM in these links. 1.
The Role of wonderfulpcb DFM Services in Hardware Design and Manufacturing Read More »
During the process of PCBA manufacturing and assembly, hardware engineers may often encounter such problems: the PCB design is indeed problematic, the purchased components do not match the actual ones during PBCA processing, the product production cycle is long, and the quality cannot be guaranteed…So how can we discover and solve these manufacturing risks before
Wonderfulpcb DFM Services with DFA is now available! Read More »
At present, electronic products have penetrated into every corner of our lives, and their products cover communications, medical, computer peripheral audio-visual products, toys, household appliances, military products, etc. Regarding the PCBA welding of electronic products, manual welding is generally used in the sample stage. The advantage of manual welding is that it is low-cost and
1. Preventing Tin-Connected Short CircuitsThe safety spacing is closely related to the steel mesh expansion during SMT patch processing. Factors such as steel mesh opening size, thickness, tension, and deformation can cause welding deviations, leading to short circuits due to tin bridging. 2. Facilitating OperationsAdequate spacing ensures operational efficiency during hand welding, selective welding, tooling,
Design for Manufacturability (DFM) integrates CAE (Computer Aided Engineering), CAD(Computer Aided Design), CAPP(Computer Aided Process Planning), and CAM (Computer Aided Manufacturing) with manufacturability analysis, ensuring manufacturing factors are considered at the design stage. From the aspect of focus: Design for manufacturability, this includes: During production process a structured analysis is done, and flow charts are
Design for manufacturability (DFM) has become a necessary skill for PCB designers Read More »
Chip component packaging is a critical aspect of semiconductor device manufacturing. With the rapid development of technology, especially in SMT (Surface-Mount Technology), there are numerous packaging forms used in the electronics industry. Some packaging types, such as chip capacitors and resistors, have standardized sizes, while others, especially IC parts, are continuously evolving. Traditional pin packaging
There are many aspects to the cost of PCBA manufacturing. The core components mainly include the materials for the PCB bare board, the cost of SMT processing, and the cost of components. In addition to these core components, several other processes directly impact the cost of PCBA. Some of these factors are often overlooked, including
How to Use DFM to Reduce PCB Manufacturing Costs? Read More »
