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 100m.

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 (35m) or 2oz (70m) 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>=2.54m
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	Gerber RS-274-X, PCBDOC etc
SERVICE AREA	Worldwide, Globally.

Variety of PCBs

X-ray target shooting