In the reverse design or maintenance of electronic equipment, electronic engineers first need to understand the connection relationship between the components on the unknown printed circuit board (PCB), so they need to measure and record the connection re
Nickel gold is a kind of surface treatment technology with large application. Remember: nickel layer is nickel phosphorus alloy layer, which is divided into high phosphorus nickel and middle phosphorus nickel according to phosphorus content.
Printed circuit board (PCB) is an information carrier integrating various electronic components, which has a wide range of applications in the field of electronics. Its quality directly affects the performance of products. In the process of PCB manufactur
The characteristics of PCB splicing machine and stable operation mechanism, prevent improper external force caused by PCB tin surface, solder joints, and other electrical circuit damage to reduce the stress of the splicing board, prevent solder joints cra
In the design of PCB board, PCB anti-ESD design can be realized by layering, proper layout and wiring and installation. During the design process, most design modifications can be limited to adding or subtracting components through prediction.
In PCB circuit design, the coupling between differential routing is generally small, often accounting for only 10~20% of the coupling degree, more or the coupling to the ground, so the main return path of differential routing still exists in the ground pl
Copper plating is the most widely used in order to improve the adhesion of the coating and a kind of precoating, this paper we will introduce the copper plating technology in PCB process encountered common problems and their solutions.
PCB board conductive circuit pattern is not balanced or PCB board two sides of the circuit is obviously asymmetrical, one side has a large area of copper skin, the formation of greater stress, the PCB board warping, in the process of PCB processing temper
Multi-layer PCB production processCompared with the particle board, the two most obvious advantages of the multi-layer board are: 1. The moisture resistance is better, because the fiber of the wood board is longer, and the moisture resistance of the board
Classification of holes on PCB and their functions1. Classification of viasIn terms of function, vias can be divided into two categories: one is used for electrical connection between layers; the other is used for fixing or positioning components. From th
Introduction of various boards of high-frequency circuit board pcbHigh frequency pcb refers to high frequency circuit board. High-frequency and induction heating technology currently has the highest heating efficiency and fastest speed for metal materials
Advantages of Rogers PCBThe dielectric constant (Dk:3.48+/-0.05) of Rogers (Rogers) RO4350B high-frequency sheet has strict tolerance control, and has low loss characteristics (Df:0.0037@10GHz), which is easy to mass produce CAF resistance (ion migration
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