Single Layer Aluminum PCB Stackup: The Standard Layer Breakdown & LED Design Rules
Understand the single layer aluminum PCB stackup: circuit copper, ceramic dielectric, and base alloy. Compare 75 vs 100 µm limits and DFM rules.

Author on lighting PCB and thermal design
Feesi Huang is an engineer focused on lighting PCB solutions, with ongoing work around aluminum PCB, LED PCB, and related thermal and structural design topics.
She regularly organizes and publishes practical content around product characteristics, manufacturing logic, and real application issues in the lighting PCB field.
Her work is aimed at helping B2B buyers, purchasers, importers, and lighting brands understand products more clearly, evaluate options with better context, and communicate requirements more accurately before prototyping and mass production.
Understand the single layer aluminum PCB stackup: circuit copper, ceramic dielectric, and base alloy. Compare 75 vs 100 µm limits and DFM rules.
BOM sourcing for LED PCB assembly: who buys each line, how to lock the LED spec, and what to send with the RFQ besides the BOM.
FR4 glass cloth rose through August 2026. Thin 2116 and 1080 moved first. Standard 7628 followed. Reported China quotes, not a finished-board formula.
Automatic X-ray inspection (AXI) checks hidden solder cameras miss. Most single-sided LED boards do not need 100% X-ray. Name thermal pads and QFNs in the RFQ.
For most LED lighting, aluminum PCB is the practical metal core. Copper conducts heat better, but weight, cost, and the dielectric usually decide the board.
Download our practical LED PCB assembly BOM template (.xlsx). Learn the 7 must-have columns, DNP rules, and how to prevent costly SMT quoting delays.