Huaxing PCBA PCB manufacturing insights and articles

Insights & Resources

Technical articles on PCB design, manufacturing, and industry best practices. Written by our engineering team.

PCB Fiducial Mark Design — Size, Placement & SMT Assembly Rules

PCB Fiducial Mark Design — Size, Placement & SMT Assembly Rules

PCB fiducial mark design rules: fiducial size and shape, solder mask clearance, global vs local fiducials, minimum placement from board edge, and how pick-and-p

PCB Depanelization — V-Score vs Routing vs Laser Tab-Routing

PCB Depanelization — V-Score vs Routing vs Laser Tab-Routing

PCB depanelization methods compared: V-score vs tab routing vs laser cutting. Depth rules, edge quality, flexible board handling, cost and yield, and how to cho

PCB Silkscreen Legend Design — Reference Designators, Readability & DFM Rules

PCB Silkscreen Legend Design — Reference Designators, Readability & DFM Rules

PCB silkscreen legend design rules: minimum line width and character height per IPC-2221, reference designator placement, polarity and pin-1 marks, and the DFM

PCB Thermal Interface Materials — Gap Pads, Paste & Phase-Change for High-Power Boards

PCB Thermal Interface Materials — Gap Pads, Paste & Phase-Change for High-Power Boards

Choose the right thermal interface material (TIM) for a power PCB: gap pad vs thermal paste vs phase-change vs liquid metal, thermal conductivity, thickness, pr

Hybrid RF Laminate Stackup — Rogers + FR-4 for Mixed-Signal PCB

Hybrid RF Laminate Stackup — Rogers + FR-4 for Mixed-Signal PCB

Combine a low-loss RF laminate (Rogers) with economical FR-4 in a single stackup: Dk and Df fields, CTE matching, prepreg selection, layer ordering, impedance p

Ethernet Magnetics — LAN Transformer & Common-Mode Choke Design for the PCB

Ethernet Magnetics — LAN Transformer & Common-Mode Choke Design for the PCB

Design the LAN magnetics module right: isolation transformer turns ratio, common-mode choke, 1500V isolation, creepage, Bob Smith termination, and PoE-class mag

CE Marking for Electronic Products — LVD, EMC & RED Directives and the Declaration of Conformity

CE Marking for Electronic Products — LVD, EMC & RED Directives and the Declaration of Conformity

CE marking for imported electronic products: which directives apply (LVD, EMC, RED, RoHS), what a Chinese PCBA supplier can actually provide vs what the importe

SMD vs NSMD Pads — Solder-Mask-Defined vs Non-Solder-Mask-Defined Pad Design Guide

SMD vs NSMD Pads — Solder-Mask-Defined vs Non-Solder-Mask-Defined Pad Design Guide

Solder-mask-defined (SMD) vs non-solder-mask-defined (NSMD) PCB pads: how the soldermask opening changes solderable area, fine-pitch wetting, joint strength and

QFN & LGA Leadless Package Soldering — Exposed-Pad Voiding, Stencil Aperture & IPC-7093 Acce

QFN & LGA Leadless Package Soldering — Exposed-Pad Voiding, Stencil Aperture & IPC-7093 Acce

QFN and LGA leadless package soldering: exposed thermal pad voiding, stencil aperture design to IPC-7525, reflow and wetting, and IPC-7093 void acceptance crite

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