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

PCB Design: The Top 6 "Career-Ending" Mistakes That Leaders Fear Most

In electronic project development, every decision made by a PCB designer can be critical to the success or failure of the project. Today, let's take stock of the behaviors that leaders fear most from PCB engineers.1. **"Bare-Metal" Specifications** - No stack-up design documentation, with layer

Mar 05, 2026 1

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When an impedance trace crosses a split, reference plane repair

**When an impedance trace has to cross a split, reference plane repair becomes the last line of defense. The core goal of the repair is singular: to provide a "shortcut" for the return current—a path that is nearby, low-impedance, and short—so it doesn't have to take a detour, thereby restoring impe

Mar 04, 2026 1

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Hidden Hardware Pitfalls That Make Programs Run Away: Crystal, Reset, and Boot Configuration Demystified

**Many people are frustrated: The code is fine, the power supply is fine, interference has been dealt with, but the program still runs away! This article discusses: Program runaway caused by hidden hardware faults.****1) Crystal Oscillator Issues: Clock becomes unstable, program goes haywire**All ac

Mar 03, 2026 1

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JLC PCB Technology Class: Learn to Understand PCB Manufacturing Processes!

Common PCB Working Layers: - **Routing Layer**: Located on the top layer, bottom layer, and inner layers of multi-layer boards. Used to draw copper traces that carry current, such as pads, traces, and copper pours. - **Silkscreen Layer**: Also known as the legend layer. Used to mark component anno

Mar 02, 2026 1

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Low Output Voltage in Power Modules

**Series 1: A Systematic Framework for Troubleshooting Low Output Voltage in Power Modules**In electronic devices, industrial control motherboards, communication equipment, automotive electronics, and consumer products, low output voltage in power modules is a highly prevalent failure with a wide im

Feb 28, 2026 1

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Detailed Q&A on Inner Layer Browning/Black Oxide Defects in PCBs

**Q1: What is browning used for? What's its relationship with bubbles?****A:** Browning is used to create a micro-roughness + passivation on the inner layer copper surface, allowing the prepreg (PP) resin to firmly "grip" the board. Poor roughening → Poor wettability → Resin cannot spread → Air cann

Feb 27, 2026 1