This article clarifies the distinctions between PCB and ABF substrate. Compare their scale, fabrication processes, materials, industrial positioning and common misconceptions, covering AI chip packaging and domestic substitution trends.
This paper classifies embedded copper block PCBs into copper-insert type and buried copper block type. It systematically introduces process flow, machining parameters, process capability and comparison of two structures, providing quantifiable manufacturing control rules for high-power, high-reliability PCBs used in automotive electronics, industrial control and communication power amplifiers.
This paper studies PCB micro-drilling copper foil chip formation for multilayer heterogeneous PCB. It explores how spindle speed, feed rate, drilling quantity, helix angle and point angle affect …
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.
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.
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.
Learn systematic PCB layout planning methods to avoid design rework before routing. Explore schematic-driven component placement, selection between ground tree and ground plane, differential signal routing, low/high frequency return current rules and key pre-layout design strategies for complex circuit boards.
Discover the main difficulties in high-layer-count PCB manufacturing including interlayer alignment, inner layer circuit fabrication, lamination and drilling issues. Learn material selection, stack-up design, LDI exposure, lamination parameters and drilling process control for stable multilayer PCB production.
Study PCB component detachment failures during SMT reflow soldering. Analyze root causes including insufficient glass fiber-resin wetting and thermal stress, and introduce metallographic, SEM, TMA, DSC test methods and effective improvement measures for PCB substrate quality.
