Blog — PCB Manufacturing Insights

Solder Balling & Beading Defects — Causes, Acceptance Criteria & Process Fixes

Solder balling and beading cause field failures and rework. Learn the root causes: IPC-based acceptance criteria and an ordered fix path for paste

Reflow Oven Profiling — Thermocouple Setup, Soak vs Ramp & Process Windows

A filed reflow profile is not process control. Learn thermocouple setup, process windows and the PWI — and how to verify a supplier's thermal control

Pick-and-Place Machine Capability — Placement Cpk, Feeder Types & Tape-and-Reel Handling

Placement accuracy stats hide the real risk. Learn placement Cpk, and the 7 capability questions to ask an SMT supplier

Rigid-Flex PCB Design & Manufacturing — Stackups | Huaxing PCBA

Rigid-flex construction types: stiffeners and the cost drivers behind a hybrid PCB. What to specify before you commit to a build

Creepage & Clearance for High-Voltage PCB — IEC 60664 & IPC-2221 Rules

Creepage and clearance spacing tables for high-voltage PCB design: pollution degree, altitude derating, IPC-2221 vs IEC 60664 limits, and coating credit.

Annular Ring & Pad-to-Hole Rules — Sizes, Tolerances | Huaxing PCB

Minimum annular ring by IPC class and how IPC-A-600 grades a breakout. The fabrication spec most quotes assume

Solder Mask Thickness & Registration | Huaxing PCBA

Solder mask thickness is a measurable spec: not a vague quality claim. How IPC-SM-840 classes map to real thickness bands, how registration tolerance works

PCB Drill Bit Life & Hit Count — Drilling Cost Per Board

Why a 0.2 mm hole costs several times a 0.8 mm hole and how wear shows up in the delivered board. The consumable cost a quote never breaks out

HTOL & Thermal Aging for PCBA — Reliability Data | Huaxing PCBA

HTOL tests wear-out under continuous bias at temperature: thermal cycling tests fatigue. Different mechanisms, constantly confused. How aging is set up

Insights & Resources