Lead-Free Soldering: Select the Alloy from Product Requirements
Compare lead-free solder alloys using component limits, joint materials and service conditions. Build a clear qualification record before assembly release.
PCB ASSEMBLY / ENGINEERING & PROCUREMENT
Engineering knowledge base
Practical guidance organized around the decisions in an assembly project.
A / KNOWLEDGE BASE
PCB Assembly Basics
Understand the build sequence, terminology and handoffs.
B / KNOWLEDGE BASESMT Assembly
Connect placement data, stencil planning and reflow requirements.
C / KNOWLEDGE BASEThrough-Hole & Mixed Assembly
Plan insertion, mechanical fit and soldering sequence.
D / KNOWLEDGE BASEBGA, QFN & Fine Pitch
Prepare bottom-terminated devices for assembly and inspection.
E / KNOWLEDGE BASESourcing, BOM & Turnkey
Prepare purchasing data and control component changes.
F / KNOWLEDGE BASEDFM, DFA & DFT
Review fabrication, assembly access and test coverage together.
G / KNOWLEDGE BASETesting & Quality
Choose verification methods and define acceptance.
H / KNOWLEDGE BASECost, Lead Time & Quotes
Compare quotations using the same scope and assumptions.
I / KNOWLEDGE BASEPrototype to Production
Build a controlled path from bring-up to repeat orders.
J / KNOWLEDGE BASEIndustry Applications
Translate the product environment into assembly requirements.
K / KNOWLEDGE BASEFlex, HDI & RF
Coordinate special board construction with the build process.
L / KNOWLEDGE BASEStandards & Supplier Selection
Ask for evidence that matches the scope of your order.
M / KNOWLEDGE BASEDefects & Troubleshooting
Turn an observed problem into a traceable investigation.
N / KNOWLEDGE BASETemplates & Terminology
Use consistent terms and a clean assembly handoff.
No topics match. Try “BOM”, “testing” or “cost”.
FROM THE ENGINEERING DESK
Latest engineering articles
SMT Placement Files: Check Origin Units and Rotation Before Release
Check SMT placement-file coordinates, units, origins, bottom-side conventions and rotation against the released assembly drawing before production handoff.
PCB Assembly RFQ: What Engineers Should Send Before Asking for a Quote
Prepare a consistent PCB assembly RFQ with revision-controlled files, sourcing responsibility, quantity breaks and agreed inspection and test requirements.