Copper Based PCB
Copper core PCB is one of the most expensive metal substrates, and its thermal conductivity
Is many times better than that of aluminum and iron substrates. It is suitable for high frequency
Circuits, high and low temperature changing regions and the heat dissipation and building
Decoration industries of precision communication equipment.




Metal Core PCB Case: Single Sided Copper Core PCB
with Immersion Gold
(PCB's are custom-made products, the picture and parameters shown are just for reference)

General profile
Board thickness: 2.0mm
Copper weight: 35-105um
Production technology: Exposure technology
Surface finish: Immersion gold
Voltage-withstand: AC2500-4000V
Thermal conductivity: Thermoelectric Separation (398 W/MK)
Solder mask: White
E-test: 100% open-short circuit test, AOI Test
Lead time: 2 weeks
Contour: Punch +CNC mill


Metal Core PCB Capability 2019

NO.	Parameter	Value
1	Type of Metal Core	Aluminum, Copper, Iron
2	Model of Metal Core	A1100, A5052, A6061, A6063, C1100
3	Surface Finish	HASL, Immersion Gold, Immersion Silver, OSP
4	Thickness of Surface plating	HASL: Sn>2.54M, ENIG: Au 0.025-0.1m, Ni 2.5-5m
5	Layer Count	1-4 Layers
6	Maximum of Board Size	23" x 46" (584mm1168mm)
7	Mininum of Board Size	0.1969" x 0.1969" (5mm5mm)
8	Board Thickness	0.0157" x 0.2362" (0.4-6.0mm)
9	Copper Thickness	0.5OZ(17.5m),1OZ(35m),2OZ(70m) 3OZ(105m),4OZ(140m) to 10oz (350m)
10	Minimum Track Width	5mil (0.127mm)
11	Minimum Space	5mil (0.127mm)
12	Minimum Hole Size	0.0197" (0.5mm)
13	Maximum Hole Size	No limit
14	Minimum Holes Punched	PCB thickness <1.0mm: 0.0394" (1.0mm)
		PCB thikness 1.2-3.0mm: 0.0591" (1.5mm)
15	PTH Wall Thickness	>20m
16	Tolerance of PTH	0.00295" (0.075mm)
17	Tolerance of NPTH	0.00197" (0.05mm)
18	Deviation of Hole Position	0.00394" (0.10mm)
19	Outline Tolerance	Routing: 0.00394" (0.1mm)
		Punching: 0.00591" (0.15mm)
20	Angle of V-cut	30, 45, 60
21	V-cut Size	0.1969" x 47.24" (5mm1200mm)
22	Thickness of V-cut Board	0.0236" x 0.1181" (0.6-3mm)
23	Tolerance of V-cut Angle	5
24	V-CUT Verticality	0.0059" (0.15mm)
25	Minimum Square Slots Punched	PCB thickness < 1.0mm: 0.0315" x 0.0315" (0.8 x 0.8mm)
		PCB thickness 1.2-3.0mm: 0.0394" x 0.0394" (1.0 x 1.0mm)
26	Minimum BGA PAD	0.01378" (0.35mm)
27	Minimum Width of Solder Mask Bridge.	8mil (0.2032mm)
28	Minimum Thickness of Solder Mask	>13M (0.013mm)
29	Insulation Resistance	1012Normal
30	Peel-off Strength	2.2N/mm
31	Solder float	260 3min
32	E-test Voltage	50-250V
33	Thermal Conductivity	0.8-8W/M.K
34	Warp or Twist	0.5%
35	Flammability	FV-0
36	Minimum Height of Component indicator	0.0059"(0.15mm)
37	Minimum Open Solder Mask on Pad	0.000394" (0.01mm)

the circuit layer of copper substrate is required to have a large current-carrying capacity,
so a thick copper foil should be used, the thickness of which is generally 35 m ~ 280 m; 

Thermal insulation layer is the core technology of copper substrate too. The core thermal
Conductivity is composed of aluminum trioxide and silicon powder and polymer filled with
Epoxy resin, the thermal resistance is low (0.15), viscoelasticity is excellent, and it has the
Ability to resist thermal aging. It is able to withstand mechanical and thermal stress.

Metal base is the support member of copper PCB. It is required to have high thermal
Conductivity, generally copper sheet is used because copper can provide better thermal
Conductivity, suitable for drilling, punching, shearing and cutting and other conventional
Machining.


Thermoelectric Separation 
A) the heat derived from LED is directly transfer through copper 
B) Thermal conductivity is higher at 380 W/MK 
C) Maximum power output 80 watt 

Copper Core PCB 
1) Single sided, double sided. 
2) Insulated metal substrate (IMS PCB) and Metal core PCB (MCPCB) 
3) V-Groove, Punch, CNC milling 
4) ENIG, HASL, OSP and Immersion tin 
5) Solder mask: Black, White and Green


MCPCB

MCPCB


Automatic sticking film machine