Aluminum PCB Manufacturer — LED, EV Power, Automotive

Riching PCB manufactures aluminum PCB (metal core PCB / MCPCB) for LED lighting, EV power electronics, automotive and industrial thermal management applications. Thermal conductivity 1.0–4.0 W/m·K. IATF16949 and ISO13485 certified. ENIG surface finish. SMT assembly available. No MOQ, from 1 board.

Table of Contents

1–4

W/m·K thermal
conductivity grades

5–7

day prototype
from DFM approval

IATF16949

& ISO13485
certified

No MOQ

From 1 board
SMT assembly available

Aluminum PCB StructureAluminum PCB structure diagram showing copper circuit layer dielectric insulation layer and aluminum base plate cross section

Aluminum PCB consists of three layers: a copper circuit layer (typically 1oz), a thermally conductive dielectric insulation layer (75–150μm), and an aluminum base plate (1.0–1.6mm). The dielectric layer conducts heat from the circuit to the aluminum base while maintaining electrical isolation. Thermal conductivity of the dielectric determines how efficiently heat is transferred — standard grade is 1.0 W/m·K, high-thermal grade reaches 2.0–4.0 W/m·K for power electronics applications.

Manufacturing Capability

ParameterStandardHigh Thermal
Thermal conductivity1.0 W/m·K2.0–4.0 W/m·K
Dielectric thickness75–150 μm50–100 μm
Copper weight1oz standard0.5oz–3oz available
Max board size600×600mm600×600mm
Surface finishENIG / HASLENIG / OSP
Voltage withstand≥2500V AC≥2500V AC
Lead time (prototype)5–7 working days7–10 working days

Applications

ApplicationThermal RequirementNote
LED street lighting1.0–2.0 W/m·KStandard — 5–7 day prototype
LED high-bay industrial2.0 W/m·KStandard high-thermal grade
EV power inverter module2.0–4.0 W/m·KIATF16949, IPC Class 3 on request
Automotive LED headlight1.0–2.0 W/m·KIATF16949 certified, halogen-free
Motor driver / BLDC2.0 W/m·KSMT assembly available
Telecom power supply1.0 W/m·KENIG, controlled impedance on copper layer
Medical imaging illumination1.0–2.0 W/m·KISO13485, IPC Class 3 available

Certifications

  • IATF16949 — automotive quality management, for automotive LED and EV power applications. See automotive PCB manufacturer
  • ISO13485 — medical device QMS, for medical imaging and surgical illumination. See medical PCB manufacturer
  • ISO9001 — general quality management baseline
  • IPC Class 2 standard, IPC Class 3 on request
  • RoHS and halogen-free materials available

SMT Assembly for Aluminum PCB

SMT assembly on aluminum PCB requires careful reflow profile management — the aluminum base plate acts as a heat sink and affects the thermal mass during soldering. Riching PCB provides turnkey PCB assembly for aluminum PCB including paste printing, LED/component placement, reflow and AOI inspection.

How to Order

  • WhatsApp: +86 13760473650
  • Send: Gerber zip + NC drill + board outline drawing
  • Specify: thermal conductivity grade (1.0 / 2.0 / 3.0 / 4.0 W/m·K), copper weight, surface finish, quantity
  • DFM review: 4–8 hours
  • No MOQ. From 1 board.

Frequently Asked Questions — Aluminum PCB Thermal Design

What thermal conductivity grade should I use for LED aluminum PCB?
For general LED lighting (up to 3W per device), 1.0 W/m·K standard grade is typically sufficient. For high-power LEDs (>3W) or automotive applications, 2.0 W/m·K is recommended. For EV power electronics and motor drives, 3.0–4.0 W/m·K is required. Calculate junction temperature rise to confirm adequate thermal margin.
What is the thermal resistance of an aluminum PCB dielectric?
Thermal resistance of the dielectric layer is Rth = t / (k × A), where t is dielectric thickness, k is thermal conductivity, and A is the component pad area. For a standard 1.0 W/m·K grade with 100μm dielectric and a 3×3mm LED pad, Rth = 11.1°C/W. Upgrading to 2.0 W/m·K reduces this to 5.6°C/W.
Can I use a thinner dielectric to improve thermal performance?
Yes — thinner dielectric reduces thermal resistance. Standard is 100–150μm; high-thermal grades use 50–75μm. However, thinner dielectric also reduces voltage withstand. Verify that the reduced dielectric still meets your isolation voltage requirement (typically ≥2500V AC) before specifying.
What is the difference between aluminum PCB and FR4 for heat dissipation?
Standard FR4 has thermal conductivity of approximately 0.3 W/m·K. Aluminum PCB dielectric grades range from 1.0 to 4.0 W/m·K — plus the aluminum base plate provides a direct thermal path to a heatsink. For power components dissipating more than about 1W per device, aluminum PCB provides significantly lower junction temperatures than FR4.

Aluminum PCB Manufacturer — Shenzhen, IATF16949 & ISO13485

1–4 W/m·K Thermal Grades · LED · EV Power · Automotive
SMT Assembly Available · No MOQ

Send Gerber + board outline. DFM review within 4–8 hours.
Specify thermal conductivity grade and copper weight.

WhatsApp +86 13760473650

DFM review within 4–8 hours

PCB Project Review

Request a PCB Quote

Upload your Gerber ZIP file and project requirements. Our engineering team will review your PCB material, stackup, impedance needs, surface finish, and production quantity before quoting.

Please prepare:

  • Gerber files in ZIP format
  • PCB material or stackup requirements
  • Controlled impedance notes if available
  • Prototype or batch production quantity
ZIP format only. Please compress all Gerber and drill files into one ZIP package before uploading.