Metal Core PCB
Hemeixinpcb is a PCB technology that makes it possible to conduct heat out of the LED and into the atmosphere in a faster and more efficient manner. While the primary focus of Hemeixinpcb is the rapidly evolving LED market, there are other applications for which Hemeixinpcb is an ideal candidate.
The thermal conductivity assisted by the aluminium core in the circuit boards makes higher packing densities, longer operating times, and improved security against failure possible, such as for LED technology and for high power transistors.
The Hemeixinpcb promise is to reduce LED junction temperature allowing users to increase LED life, increase reliability, increase brightness, increase lumens per LED and reduce cost per lumens and that is a promise Hemeixinpcb definitely delivers on.
We can offer aluminum pcb:
- Aluminum Base Single & Multilayer PCB
- Copper Base Single & Multilayer PCB
- Aluminum core PCB
- Copper core PCB
- Metal Back PCB
- Electric separation copper base board
- COB Mirror aluminum base board
- COB Plating silver base board
Metal Core PCB and aluminum pcb Capabilities:
- Laminate – Ceramic filled polymer, glass fiber cloth, pure rubber filled polymer and Ceramic glass fiber cloth
- Base Metal:Aluminum 5052, Aluminum 6061, Copper
- Finished Thickness = 0.60mm~3.0mm
- Maximum Copper Weight = 30 oz.
- Thermally conductive and withstand woltage: 0.5W/m.k~3W/m.k, DC max.7000, AC Max.5000V
- Thermal Resistance: 0.1-0.7℃/W
- Minimum hole size: 0.50mm
- Minimum Countersunk hole size: 2.0mm
- Distance of trace to board adge:≥1.0mm
- Distance of hole to board adge:≥board thickness 1.5 times
- Hot Air Solder Leveling (HASL)&OSP
- Immersion Gold (ENIG) & Immersion Silver
IMS PCB and aluminum pcb Includes:
- Arlon 92ML –2.0W/m.k
- Bergquist –2.2-3.0W/m.k
- Doosan –2.0W/m.k
- Denka Hit Plate –2.0-8.0 W/m.k
- DuPont CoolLam –Polyimide based –0.80W/m.k
- ITEQ-IT859 GTA –2.0W/m.k
- Laird Technology HKA 30W/mk
- Polytronics –2.7W/m.k
- Sekisui –2.0W/m.k
- Ventec -VT 4A1 –1.6W/m.k
Metal core pcb and aluminum pcb Applications:
- Commercial / Industrial lights
- Street lights
- Back lights
- LED Packaging Substrate
- Residential down lights
- Road light
- Fluorescent light
- Stage light
- Spot light
What is an IMS PCB?
IMS = Insulated Metal Substrate, It also called metal core pcb. A metal core printed circuit board (MCPCB) also known as thermal PCB, incorporates a metal material as its base as opposed to the traditional FR4, for the heat spreader fragment of the board. Heat builds up due to some electronic components during the operation of the board. The purpose of the metal is to divert this heat away from critical board components and towards less crucial areas such as the metal heatsink backing or metallic core. Hence, these PCBs are apt for thermal management.
Copper circuitry bonded onto an electrically insulated thermal dielectric layer, that is bonded to a metallic substrate.
- The insulating thermal dielectric is a special material, with good thermal conductivity; normally it is 8 to 10 times more thermally conductive than FR4.
- The dielectric is normally is made using a filling material that normally used aluminium oxide, aluminium nitride, boron nitride, magnesium oxide or silicon oxide.
- An aluminium metal base is perhaps the most common metallic base. It is suitable for drilling, punching and cutting.
- In most cases and IMS board reduced the need for heat sinks.
Metal core pcb and aluminum pcb Material considerations
| Material vendor | Type | MOT | Thermal conductive (W/m-K) | Tg | Dielectric thickness (μm) | Mark |
|---|---|---|---|---|---|---|
| Arlon | 92ML | 140 | 2 | 170 | 75-152 | Single and double side Al / Cu base |
| Arlon | 92ML | 90 | 2 | 170 | 75-152 | Single side Cu / AL base |
| Bergquist | HT | 140 | 2.2 | 150 | 76±5 | Single side Cu / AL base |
| Bergquist | HIGHROAD® T30.20 | 130 | 1.1 | 90 | 76 | Single side AL base |
| Bergquist | HPL-03015 | 140 | 3 | 185 | 38±5 | Single side Cu / AL base |
| Bergquist | MP | 130 | 1.3 | 90 | 76±5 | Single Cu / AL base |
| Kinwong | KW-ALS | 90 | 2 | 110 | 80-200 | Single side stainless steel / Cu / AL base |
| Kinwong | KW-ALS | 90 | 1.5 | 120 | 80-200 | Single Al base |
| Ventec | VT-4A2 | 90 | 2.2 | 130 | 75-200 | Single side AL base |
| Ventec | VT-4B | 130 | 3 | 130 | 75-200 | Single side AL base |
| Laird | T-Lam DSL 1KA | 110 | 3 | 105 | 100-305 | Single side Cu / AL base |
| Laird | T-Lam DSL | 110 | 3 | 105 | 102-305 | Single and double side Cu base |
| Laird | T-Lam DSL | 110 | 3 | 105 | 102-305 | Single and double side Cu / AL base |
| Laird | T-lam SS HTD | 150 | 2.2 | 168 | 102-152 | Single side Cu / AL /Cu alloy base |
| PTTC | PTTC(TCP-2L) | 90 | 2 | 130 | 80-150 | Single and double side AL base |
| PTTC | TCB-2AL | 110 | 2.7 | 130 | 80-150 | Single Al base |
| PTTC | TCB-2L | 90 | 2 | 130 | 80-150 | Single Al base |
| Qingxi | CS-AL-88,CS-AL-89 | 130 | 2 | 100 | 60-200 | Single side Cu / AL base |
| Dongli | EPA-M2CTI | 90 | 2 | 145 | 75-150 | Single Al base |
| DOOSAN | DST-5000 | 110 | 2 | 110 | 95-200 | Single side AL base |
Aluminum pcb Base metal
- Consider the application to choose suitable metal base
- For normal lighting application, can choose 1K (1100) and 3K (3003) serial Aluminium ;
- For Power application, can choose 5K (5052) serial Aluminium;
- For Rectification application (shaking environment), can choose 6K (6061) serial Aluminium ;
- Postfix name “H” means; Work hardening state to increase strength; “T” means after heat treatment; the first digital after “H” &”T” means degree; see next slide.
- Copper base, much better for heat sink;
- Stainless steel, good for electromagnetism shielding;
| Metal(Alloy) | Thermal conductive(W/m*K | CTE(PPM/K) | Density(g/cm3) | Elasticity modulus(Gpa) | Mark |
|---|---|---|---|---|---|
| C1100 Cu | 391.1 | 16.9 | 8.94 | 117 | Low CTE, high thermal conductivity; high cost |
| 1060 H18 Al | 203 | 23.5 | 2.7 | 25.8 | Pure Al, good thermal conductivity but hard for mechanical making, low cost |
| 5052 H34 Al | 150 | 25 | 2.7 | 25.9 | Al-Mg alloy, good bending property, suitable for punch; middle cost |
| 6061 T6 Al | 150 | 25 | 2.7 | 26 | Al-Mg-Si alloy, suitable for CNC, V-cut; high cost |
| 304 stainless steel | 16 | 16 | 7.9 | 200 | |
| Cool Roll steel | 391.1 | 16.9 | 7.9 | 200 |
At Hemeixin you can get aluminium core PCBs with a thermal conductivity of 1.0 W/mK to 8 W/mK. The aluminium core helps to distribute the selective heat of heat-intensive components and to make the heat development on the printed circuit board more homogenous. The rule of thumb for many high-power LEDs is: A 10° C lower junction temperature increases the lifetime by 10.000h.
For one-sided metal core PCBs, a heat sink and/or fan (active cooling) can be mounted directly on the aluminum (passive cooling).
