In the process of purchasing PCBA, we need to pay urgent attention to PCBA quality control points, and adopt a professional perspective to examine whether each PCBA board meets the application requirements of electronic products.
When the overshoot is serious, the protection diode will fail prematurely because of its work. Severe downstrokes can cause false clock or data errors (misoperation)
The snake line on PCI board is to adapt to the line length requirements of PCI 33MHzClock. If in the general ordinary PCB board, is a distributed parameter LC filter, can also be used as a radio antenna inductor coil, short and narrow snake wire can do fu
Since there are many logic components, it is easy to cause confusion and difficult to manage when they are built under one library.
PCB board making fee, material fee, SMT welding fee, steel mesh fee, PCBA fixture, PCBA test frame and packaging and transportation fee.
According to customers' individual needs, we can exchange the positions of components in the board, rearrange the circuit and pcb design layout, etc., in order to achieve the desired effect of customers.
1. Fill in the test application form（1）Report format: If SGS report needs Chinese report, you can fill in Chinese; If you need English, please fill in both English and Chinese. ITS report is filled out in English and Chinese.(2) According to the needs, en
The understanding of restricted use of metals and substances is based on the analysis of their potential harm to human body.
From this point of view, whether gold or silver, the purpose of the process itself is to prevent oxidation, protect the pad, so that it in the following welding process to ensure yield.
The PCBA project should be completed in seven steps: first, preliminary preparation stage, second, design and development, third, design and editing of operation instruction of SMT production process, fourth, confirmation of steel mesh production ability,
Generally, there are several ways to deal with analog ground and digital ground: 1, directly separate,2, digital ground and analog ground connected with magnetic beads; 3, digital and analog ground with capacitor connection, using the principle of capacit
The main measures to reduce the surface tension and viscosity in PCBA welding process are as follows: (1) increase the temperature, (2) adjust the proportion of metal alloy, (3) increase the active agent, and (4) improve the PCBA welding process environme
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