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.
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.
|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|
|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).