High frequency PCB Manufacturer-Shenzhen Chengchi Circuit Technology Co., Ltd.

What is the Specific Difference Between PCB and PCA?

PCB and PCA are two commonly confused terms in the electronics manufacturing industry, but they refer to distinct stages and components of electronic circuits, with clear differences in definition, function, and application. PCB, short for Printed Circuit Board, is a physical substrate that provides

May 19, 2026 328

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How to Accurately Use Dielectric Constant (Dk) to Calculate Signal Delay on PCBs?

In the field of high-speed PCB design, the precise calculation of signal delay is one of the core aspects ensuring proper circuit operation. As operating frequencies of modern electronic products continue to climb—from a few GHz to over ten GHz and even higher—the transmission delay of signals along

May 18, 2026 246

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Negative Impacts of Excessively Thin PCB Copper Foil on Application Scenarios

Negative Impacts of Excessively Thin PCB Copper Foil on Application ScenariosIn modern electronics manufacturing, the Printed Circuit Board (PCB) serves as the core carrier of electronic products. The thickness of the copper foil is one of the key parameters determining circuit performance and relia

May 16, 2026 241

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PCBA Inspection Report

A PCBA (Printed Circuit Board Assembly) inspection report is a comprehensive and formal document that records the results of evaluating assembled circuit boards against predefined quality standards and specifications. It serves as a critical tool for quality control (QC) teams, production managers,

May 16, 2026 159

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Design of Thermal Vias and Exposed Pad (EP) for High-Power PCBs

Thermal vias and exposed pads serve as the "vertical high-speed channels" for transferring heat from the surface layer to inner and bottom layers in high-power PCBs. They act as the critical bridge connecting heat sources to large copper areas, and their design quality directly determines thermal co

May 15, 2026 469

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PCBA Processing Quote

PCBA (Printed Circuit Board Assembly) processing quote is a comprehensive pricing document that covers the entire assembly process of printed circuit boards, from bare PCB fabrication to final testing and packaging. Unlike single-stage pricing, it integrates multiple links such as component solderin

May 15, 2026 395