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.
Explore how DFM review prevented edge breakout, burrs, and clearance issues in a single-layer aluminum PCB. Learn key manufacturability risks around countersink holes, V-cut panelization, and copper spacing to ensure high yield and thermal reliability before production.
Discover how proactive DFM review prevented exposed copper, resin plugging inconsistencies, and impedance issues in a compact 4-layer FR4 PCB. Learn critical manufacturability risks and preventive strategies to protect yield and reliability before production begins.
This technical assessment examines manufacturing capability for thermoelectric separation copper base PCBs. It focuses on the decision to adopt conventional stackup over customer documentation and the resulting 0.05µm ENIG gold thickness limit caused by direct connection between edge pads and base copper, while maintaining 380W thermal conductivity and insulation performance.
AIVON assesses manufacturing capability for a 4-layer FR4 PCB featuring 0.15mm holes, HDI blind vias, 1.6mm thickness, and 1.35mm countersink depth control. This technical review examines drilling precision limits, lamination adjustments, and process validation for reliable production of fine-feature boards with immersion silver finish.
This case evaluates the manufacturability of a 4-layer FR4 PCB with tight 1.2mm ±0.12mm thickness tolerance, 0.78mm controlled-depth drilling for L2/L3 pad exposure, and blind vias. This engineering capability assessment details lamination control, depth drill precision, and process validation for reliable production.
As Senior CAM Auditor at AIVON, I investigated conflicting blind via sizes, soldermask vs SMT data, and plugging requirements in a 4-layer FR-4 HDI PCB. Discover how targeted Engineering Questions resolved data-to-manufacturing conflicts, ensured stackup accuracy, and prevented production risks before fabrication. Essential insights for designers on HDI via processing and CAM verification.
Senior PCB CAM engineer examines a real 2-layer FR-4 board case with critical DFM issues including copper-to-edge clearance for V-cut routing, asymmetric hole pads, silkscreen layer placement, and via tenting conflicts. Learn practical manufacturing risks and solutions to avoid exposed copper, burrs, and assembly defects in large panel production.
Senior PCB CAM engineer shares a real 2-layer FR-4 board engineering case focusing on file verification, custom UL logo silkscreen markings, milling data confirmation, and missing solder paste layer handling. Learn practical DFM insights to avoid production delays, marking errors, and assembly issues in quick-turn PCB projects.
Senior PCB CAM engineer analyzes a real 16-layer HDI FR-4 board case with 2.2mm thickness. Discover critical stackup adjustments, resin via plugging, stamp hole panelization, and DFM solutions to prevent delamination, soldering defects, and production delays. Practical manufacturing insights for high-density PCB designers.
As a senior PCB CAM engineer, this real rigid-flex 6-layer manufacturing case study details critical EQs during CAM review, including hybrid stackup tolerances, rigid-flex junction point glue, inner layer optimization, and mechanical feature adjustments. Learn key DFM insights to avoid common production risks and ensure reliable fabrication.
Senior PCB CAM engineer shares a real 2-layer FR-4 TG170 manufacturing case study. Discover critical DFM issues including 2oz copper thickness conflict with tight 6.89mil spacing and BGA solder mask bridge challenges at 7.87mil clearance. Learn how we resolved the issues through targeted EQs to prevent etching defects, solder bridging, and production scrap. Essential DFM insights for reliable PCB fabrication.
Senior CAM engineer case study on a 4-layer 1.0mm FR-4 PCB. Discover critical DFM issues including insufficient copper-to-outline clearance causing exposed copper risks, tight stamp hole spacing, process edge copper pour recommendation, and 0.5mm hole clarification. Learn how our engineering team resolved these challenges to prevent edge defects, peeling, and depanelization problems. Practical insights for PCB designers.
