The innovation of printed circuits lies first in the innovation of PCB products and markets. The innovation of printed circuits is based on technological innovation. Printed electronic circuits (PEC) have brought revolutionary changes to PCB products and production processes. Printed circuit boards (PCBs) have become an indispensable accessory for modern electronic equipment. Whether it is…
In the design of electronic systems, in order to avoid detours and save time, the requirements of anti-interference should be fully considered and met, and anti-interference remedial measures should be avoided after the design is completed. There are three basic elements that form interference: (1) Interference source, which refers to the components, equipment or signals…
(Printedcircuitboard, referred to as PCB) is a substrate for assembling electronic parts. It is a printed board that forms point-to-point connections and printed components on a general substrate according to a predetermined design. The main function of this product is to enable various electronic components to form a predetermined circuit connection, play a role in…
1.Generally, there are several reasons for copper cladding. （1）.EMC. For large-area ground or power copper cladding, it will play a shielding role. Some special grounds, such as PGND, play a protective role. （2）.PCB process requirements. Generally, in order to ensure the electroplating effect or lamination deformation, copper is laid on PCB layers with less wiring….
The innovation of printed circuits lies first in the innovation of PCB products and markets. The innovation of printed circuits is based on technological innovation. Noise printed electronic circuits (PEC) have brought revolutionary changes to PCB products and production processes. Printed circuit boards (PCBs) have become an indispensable accessory for modern electronic equipment. Whether it…
Via is one of the important components of multi-layer PCB, and the cost of drilling usually accounts for 30% to 40% of the cost of PCB board manufacturing. Simply put, every hole on the PCB can be called a via. From the perspective of function, vias can be divided into two categories: one is used…
1.PCB surface treatment: Anti-oxidation, tin spraying, lead-free tin spraying, immersion gold, immersion tin, immersion silver, hard gold plating, full-board gold plating, gold finger, nickel-palladium gold OSP: low cost, good solderability, harsh storage conditions, short time, environmentally friendly process, good welding, flatness. Spiking tin: The tin spraying board is generally a multi-layer (4-46 layers) high-precision PCB…
PCB Introduction PCB, Chinese name for printed circuit board, also known as printed circuit board, printed circuit board, is an important electronic component, a support for electronic components, and a provider of electrical connections for electronic components. Because it is made using electronic printing technology, it is called a “printed” circuit board. Classification according to…
1 Suppress interference source Suppressing interference source means reducing du/dt and di/dt of interference source as much as possible. This is the most important and most important principle in anti-interference design, which often achieves twice the result with half the effort. Reducing du/dt of interference source is mainly achieved by connecting capacitors in parallel at…
Printed circuit board (PCB) manufacturers face significant pressure to increase density, shrink footprint, reduce side dimensions, manage thermal flow, and increase data rates while improving reliability and reducing costs. As they continue to successfully address these pressures, an interesting challenge has emerged for designers: aligning multiple mated connector groups between two PCBs. What is needed…
The core of electronic equipment is the circuit board, which is composed of a large number of various types of electronic components. If the equipment fails or short-circuits, the reason is mostly due to the failure or damage of the electronic components. Today, the technical staff of Andwin will bring you some methods and techniques…
On-site process is the backbone of the product manufacturing process of PCBA factories. On-site process personnel must identify the difficulties of product manufacturing in advance, prevent and control various potential design defects, and ensure that the products are produced in the most economical way. This is the core work of on-site process. As electronic products…
There are many aspects to the cost of PCBA manufacturing. The core parts mainly include the materials of PCB bare board, the cost of SMT processing, and the cost of components. In addition to the core parts, there are a series of links that will directly affect the cost of PCBA.There are many links that…
Regarding the issue of PCB layout and routing, today we will not talk about signal integrity analysis (SI), electromagnetic compatibility analysis (EMC), and power integrity analysis (PI). We will only talk about manufacturability analysis (DFM). Unreasonable manufacturability design will also lead to product design failure. Successful DFM in PCB layout begins with setting design rules…
To do high-speed PCB design, you must first understand the following basic concepts, which are the foundation. 1.What is electromagnetic interference (EMI) and electromagnetic compatibility (EMC)? (Electromagnetic Interference), there are two types of conducted interference and radiated interference. Conducted interference refers to the coupling (interference) of a signal on an electrical network to another electrical…
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