Engineering Cases focuses on real PCB engineering reviews, manufacturing challenges, and production optimization processes from actual fabrication projects. This category highlights how different PCB designs are evaluated and adjusted during engineering review, covering topics such as stack-up analysis, impedance control, drill optimization, copper balancing, solder mask alignment, DFM review, and production risk assessment across various PCB applications. The content in this section is based on practical manufacturing scenarios rather than theoretical introductions. Each engineering case demonstrates how specific PCB issues are identified, analyzed, and resolved during production preparation and fabrication. These records help engineers, purchasers, and hardware teams better understand the relationship between PCB design decisions and manufacturing stability, yield control, and process reliability. Topics may include multilayer PCB engineering review, HDI process optimization, flexible PCB manufacturing considerations, heavy copper processing adjustments, surface finish selection, Gerber data verification, and other real-world PCB production experiences. By organizing engineering challenges and process solutions into structured case content, this category provides valuable insight into practical PCB manufacturing and engineering workflow management.
Real 10-layer FR-4 PCB engineering case study by a senior CAM engineer. Explore critical DFM challenges including gold finger bevel clearance, impedance recalculation, via plugging confirmation, and tight via spacing. Learn how professional CAM review prevents manufacturing defects, exposed copper, yield loss, and signal integrity problems in multilayer boards.
This 6 layer HDI PCB case study covers stackup optimization and solder mask bridge limits. Learn about via placement in BGA areas and resin flow for high density board manufacturing.
This case study examines a 4-layer rigid-flex PCB. Real EQs covered via cover oil conflicts with Gerber windows, insufficient edge clearance risking exposed copper after routing, right-angle outline corners, flex-region characters, and material/stackup alignment. DFM adjustments prevented solder wicking, cracking, and assembly failures on the five-piece batch.
Senior PCB CAM engineer shares a real 4-layer rigid-flex PCB DFM engineering case study. Key issues include tight pad-to-edge clearance causing exposed copper risk, via plugging clarification (resin plug vs cover), rigid-flex stackup confirmation, and process edge details. Learn how proper EQ review prevents manufacturing defects and ensures reliable production.
As a senior PCB CAM engineer, this case study examines an 8-layer FR-4 PCB with blind vias. Real EQs addressed oversized solder mask openings, via plugging conflicts on double-sided windows, V-CUT clearance and panel alignment, plus BGA silkscreen proximity. DFM adjustments prevented exposed copper, edge shorting, ink peeling, and assembly defects.
Senior PCB CAM engineer presents a real 2-layer FR-4 TG170 DFM engineering case study. Key issues include selective copper paste via plugging, panel dimension conflicts with process edges, and silkscreen marking placement. Learn how proper EQ clarification prevents manufacturing defects, dimensional errors, and assembly problems.
Senior PCB CAM engineer shares a real 14-layer TG170 FR-4 DFM case study. Discover key manufacturing issues including undersized solder mask openings, resin plugging ambiguity, copper-to-edge clearance problems, and impedance control challenges. Learn essential DFM insights to avoid production delays and improve PCB manufacturability.
In this real 4-layer FR-4 PCB manufacturing case study, our senior CAM engineer reveals critical issues found during review — including V-CUT copper clearance violations, 0.25mm via spacing risks, and Gerber layer conflicts. Learn key DFM lessons to prevent production delays, scrap, and assembly failures.
Senior PCB CAM engineer analyzes a real 6-layer 2oz heavy copper FR-4 TG150 PCB case. Explore key DFM issues including board edge clearance, PTH/NPTH hole attribute conflicts, silkscreen overlap on pads, and how timely engineering review prevents manufacturing defects and yield loss.
Senior PCB CAM engineer shares a real 20-layer FR-4 TG170 high-density PCB DFM case study. Detailed analysis of stackup optimization, copper thickness confirmation, impedance line verification, and other critical engineering questions during CAM review. Learn key manufacturability lessons to avoid production delays and reliability risks.
Senior PCB CAM engineer presents a real rigid-flex 8-layer PCB DFM case study. Detailed review of stackup optimization, copper weight clarification, via-in-pad filling & capping under BGA, flex-rigid transition challenges, and critical engineering questions resolved during CAM review. Essential DFM lessons for reliable rigid-flex manufacturing.
Real 6-layer HDI PCB manufacturing case study by a senior CAM engineer. Discover critical DFM issues including solder mask bridge failure on tight SMD pads, low inner layer copper density causing delamination risk, laser blind via sizing, and panelization optimization. Learn why factories raise EQs and how these problems were resolved before production. Essential reading for PCB designers.
