Structure of MCPCB
The most common MCPCB construction consists of the following layers:
A metal substrate, typically aluminum. In some applications, a copper substrate is more appropriate
due to its high thermal conductivity than aluminum (401W/MK versus 237 W/MK) but more expensive.
Epoxy dielectric layer. This is the most important layer in the MCPCB construction as it affects the
thermal performance, electrical breakdown strength, and, in some cases, the solder joint performance
of the MCPCB system. The typical thermal conductivity of the dielectric layer on a MCPCB is 1W/MK.
A higher value is better for good thermal performance. A thinner dielectric layer is better for thermal
performance as well but can negatively impact the ability of the MCPCB to withstand a high potential
test to meet minimum electrical safety standards as required in certain lighting markets. The typical
dielectric thickness layer is 100μm.
Top copper layer. A thicker copper layer improves heat spreading into the PCB but may pose
challenges for PCB manufacturers when fabricating narrow traces or spaces. A copper thickness
of 1oz (35μm) or 2oz (70μm) is common.
MCPCB Case: Single Sided Aluminum PCB 2W / MK HASL
LF Applied In LED Lighting
(PCB's are custom-made products, the picture and parameters shown are just for reference)
General description
This is a type of Aluminum PCB for the application of Led Lighting. It's a single layer MCPCB board
at 1.6 mm thick with 2W/MK thermal conductivity. The aluminum plate is from ITEQ, Solder mask and
silkscreen from Taiyo. It's fabricated per IPC 6012 Class 2 using supplied Gerber data. Each 10
boards or panels are packed separately.
Features and benefits
SMT process;
Effective heat dissipation reduces the operating temperature of the module and prolongs the
service life;
Power density and reliability are improved up 10%;
Reduce the dependence of heat sinks and other hardware (including thermal interface materials),
Reduce the volume of the product;
Reduce the cost of hardware and assembly,
Strict WIP inspection and monitoring as well as working instruction,
Whole fabrication processes are totally controlled;
Meeting your printed circuit board needs from PCB prototyping to mass volume production;
UL recognized and RoHS Directive-compliant;
RoHS materials;
UL conformed
Application
Input-output amplifier, DC/AC converter, automotive ignitor, Street lamp,
Parameter and data sheet
| PCB SIZE |
160 x 83mm=8PCS |
| BOARD TYPE |
|
| Number of Layers |
Single sided PCB |
| Surface Mount Components |
YES |
| Through Hole Components |
NO |
| LAYER STACKUP |
copper ------- 35um(1oz) |
| 80um 2W/MK dielectric material |
| Metal base (Aluminum 5052) |
| TECHNOLOGY |
|
| Minimum Trace and Space: |
10mil/12mil |
| Minimum / Maximum Holes: |
0.4/2.5mm |
| Number of Different Holes: |
5 |
| Number of Drill Holes: |
454 |
| Number of Milled Slots: |
22 |
| Number of Internal Cutouts: |
0 |
| Impedance Control |
no |
| BOARD MATERIAL |
|
| Glass Epoxy: |
2W/MK dielectric material, Aluminum based PCB |
| Final foil external: |
1oz |
| Final foil internal: |
0oz |
| Final height of PCB: |
1.6mm ±0.16 |
| PLATING AND COATING |
|
| Surface Finish |
HASL, Lead Free, Sn>=2.54µm |
| Solder Mask Apply To: |
Top ,12micon Minimum. |
| Solder Mask Color: |
White. |
| Solder Mask Type: |
LPSM |
| CONTOUR/CUTTING |
Routing |
| MARKING |
|
| Side of Component Legend |
TOP |
| Colour of Component Legend |
Black |
| Manufacturer Name or Logo: |
Marked on the board in a conductor and leged FREE AREA |
| VIA |
Plated Through Hole(PTH), via tented. |
| FLAMIBILITY RATING |
UL 94-V0 Approval MIN. |
| DIMENSION TOLERANCE |
|
| Outline dimension: |
0.0059" (0.15mm) |
| Board plating: |
0.0030" (0.076mm) |
| Drill tolerance: |
0.002" (0.05mm) |
| TEST |
100% Electrical Test prior shipment |
| TYPE OF ARTWORK TO BE SUPPLIED |
email file, Gerber RS-274-X, PCBDOC etc |
| SERVICE AREA |
Worldwide, Globally. |
About Us
Bicheng PCB, a unique printed circuit board supplier based in Shenzhen China serves worldwide
customers since it's born in 2003. At Bicheng, every batch of PCB goes through electrical test, AOI
inspection, high voltage test, Impedance control test, micro-section, solder-ability test, thermal stress
test, reliability test, insulation resistance test and ionic contamination test etc. Finally it is like a
beautiful gift to be delivered to your hands.
Different plant scale to suit for your requirements
16000 square meter factory building
30000 square meter month capability
8000 types of PCB per month
ISO9001, ISO14001, TS16949, UL Certified
Variety of PCB technology to meet the market demands
HDI board
Heavy copper board
Hybrid material board
Blind via board
High frequency board
Metal core board
Immersion gold board
Multilayer board
Backplane board
Gold finger board
Comprehensive sales service presale, in sale and after sale
Quick CADCAM checking and free PCB quotation
Free-of-charge PCB panelization
Prototype PCB capability
Volume Production capability
Quick turn-around samples
Free-of-charge PCB test
Solid carton packing
Variety of PCBs
Automatic sticking film machine
Audited Supplier 
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