This article conducts PCB via hole electroplating failure analysis and process optimization research on automotive PCBA open-circuit samples. Metallographic section, SEM, thermal shock and TMA thermal performance tests are adopted to study the mechanism of via copper fracture and put forward electroplating and drilling process improvement suggestions.
This paper introduces PCB thermal design and heat dissipation technology, covering substrate material selection, component layout optimization, trace & thermal via design, component packaging selection and thermal path optimization for circuit boards.
This article elaborates PCB EMC design technology, including PCB layering strategies, multilayer/single/double board design, component layout principles and high-speed signal routing rules to control return path, EMI radiation and crosstalk.
PCB inner layer browning is copper surface pretreatment before multilayer board lamination. It introduces process flow, bonding mechanism, reliability test items and advantages over traditional blackening process.
Compare immersion gold (chemical nickel-gold) and electroplated gold (electrolytic nickel-gold) for PCBs, including gold thickness, crystal structure, solderability, flatness, short-circuit risk and applicable scenarios.
This paper introduces PCB vertical continuous nickel-gold plating equipment, process flow, technical specifications, key challenges & solutions. It improves plating uniformity, saves gold salt cost and realizes unmanned automated production.
Master RF circuit PCB design techniques including component layout, RF routing rules, ground handling and shield enclosure design to reduce coupling interference and improve circuit anti-interference performance.
Learn FPC bend life testing for flexible printed circuits, including IPC & GB standards, bend radius, bending frequency, failure criteria, test equipment selection and practical testing precautions.
Explore copper-embedded PCBs’ key benefits: superior heat dissipation, higher structural strength, greater current-carrying capacity, EMI shielding, compact design and full lifecycle cost reduction for AI servers and NEV electronics.
Analyze root causes of PCB warpage after SMT through comparative experiments covering baking process, PCS connection design and substrate material, provide practical engineering optimization suggestions for PCB manufacturers and assembly plants.
