Understanding these common misunderstandings in circuit design is essential for engineers who want to improve efficiency, reduce power consumption, and design more reliable systems. By addressing these myths, you can avoid co
In circuit board manufacturing, various electroplating methods are employed to enhance performance, durability, and contact quality. This article focuses on four specialized electroplating methods commonly used in PCB (printed circuit board) welding processes
It is generally recommended to use the method of automatic routing + manual adjustment. Automatic routing requires routing in the order of ground line – power line – clock line – others. Set the routing priority in the routing rules, 0 is the lowest level, 100 is the highest level, and there are 101 situations in total. In more complex circuit boards, considering the requirements of electrical characteristics, interference and other factors, we all use manual routing. It is forbidden to place vias on the pins of components, and the already routed lines should be locked before automatic routing. The routing should take into account both aesthetics and electrical characteristics. In particular, the routing that affects the appearance should be routed on the reverse side. In principle, do not route the front side of the product name, model and Zhongyou logo (except in special cases), and do not allow front routing between the silk screen frame and the Keepout frame (except in special cases).
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When discussing wiring-related technologies, two issues will be discussed: What if management cannot use a double-layer board or a ground plane, but still needs to reduce the noise in the circuit? And how to design the circuit to meet the ground plane requirements? Generally speaking, the solution is to tell management that a ground plane is necessary if reliable circuit performance is to be achieved. The main reason for using a ground plane is that the ground impedance is low and it can reduce EMI to a certain extent. But if cost constraints prevent users from achieving what they need, some suggestions provided in this article, such as star networks and correct current return paths, can also slightly reduce circuit noise.
24GHz radar detection system mainly supports short-range detection (SRR), high frequency circuit board and high wavelength. Applicable boards: RO4835, RO4350B, RO4003C . Among them, RO4350B nitride ceramic laminate and RO4835 nitride ceramic laminate are highly recommended. These two series belong to the cost-effective series for people’s daily use.
High-frequency PCB is a special circuit board with a higher electromagnetic frequency, which is above 1GHz. The physical properties, precision and technical parameters of high-frequency PCB are very high, and it is often used in radar, military equipment, aerospace and other fields.
RO4000 series laminates can be processed using standard FR-4 techniques without specialized via preparation. They are rigid, thermoset laminates, compatible with automated systems and scrubbing equipment for copper surface preparation. RO4835 laminates are RoHS compliant and suitable for UL 94V-0 certified applications.
RO4000 hydrocarbon ceramic laminates are designed to offer superior high frequency PCB performance and low cost circuit fabrication. The result is a low loss material which can be fabricated using standard epoxy/glass (FR-4) processes offered at competitive prices.
This study was conducted to evaluate dimensional movement of Rogers RO4350B
Product through the circuit fabrication process. The study was conducted using Six
Sigma tools and the DMAIC process as a guideline for the evaluation (Define, Measure,
Analyze, Improve, and Control). The Six Sigma project was initiated as a joint exercise between Rogers Corporation and printed circuit board manufacturer Cirtech Inc.