domestic pcb manufacturer-Shenzhen Chengchi Circuit Technology Co., Ltd.

Engineer's Must-Know PCB Shielding Material Pitfalls and New Trends

Having worked in hardware for so many years, I've seen countless engineers choose the right shielding material, only to fail in electromagnetic compatibility (EMC) testing, damage the PCB, or experience shielding failure due to incorrect application. Let me share 10 high-frequency pitfalls—each one

Mar 20, 2026 17

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Common PCB BGA Soldering Defects and Precision X-Ray Inspection Criteria

Many electronic R&D engineers and PCB manufacturing practitioners have encountered similar frustrations: BGA chips appear flat and intact after soldering, but the assembled device frequently experiences crashes, signal instability, or functional failures. Only upon removing the chip for inspection a

Mar 19, 2026 363

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In-Depth Analysis of PCB Circuit Boards and Four-Layer Board Design

In electronic product R&D, a PCB circuit board is not merely a carrier for components; it is a critical infrastructure that determines signal integrity, power supply stability, manufacturing yield, assembly efficiency, and delivery timelines. For hardware teams, the success of a prototype verificati

Mar 18, 2026 1

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High-frequency, high-speed multilayer PCB power integrity control

With the widespread adoption of technologies such as 5G communications, artificial intelligence, and high-speed storage, the operating frequencies of electronic devices continue to rise. Chip clock frequencies have advanced from the MHz range to the GHz range, making high-frequency and high-speed sc

Mar 17, 2026 1

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Practical Guide to Corrosion Resistance Throughout the PCB Lifecycle

The core principle for addressing PCB corrosion is "prevention first, with repair as a supplement." This is because once corrosion occurs, the loss of the metal layer is irreversible. Repair can only mitigate faults and cannot restore original performance. Severe corrosion necessitates PCB replaceme

Mar 16, 2026 1

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The Tiny Jumper, The Big Deal: The Ultimate Guide to Jumper Usage in PCB Design

In the intricate world of PCB design, there exists a seemingly insignificant yet crucial "supporting character"—the jumper. Acting as a "bridge" within the circuit, it silently connects various components, resolving layout dilemmas. But did you know? Improper use of jumpers can lead to the collapse

Mar 14, 2026 1