236mil Printed Circuit Board Fabrication 0.4mm LED PCB Circuit Board

LED means light emitting diode,PCB means printed Circuit board

So, led pcb is printed circuits board for light emitting diode. Currently in order to provide LED lighting’s life, LED lighting factory always use

Metal core PCB for solder the LEDs Chip to the Circuit boards!

As Metal Core PCB means the base material for PCB is metal, but not normal FR4-

CEM1-3, etc, and currently what the metal used are Aluminum, Copper alloy.

MCPCBs are used instead of traditional FR4 or CEM3 PCBs because of the ability to

efficiently dissipate heat away from the components. This is achieved by using a

Thermally Conductive Dielectric Layer.

The main difference between a FR4 board and MCPCB is the thermally conductive

dielectric material in the MCPCB. This acts as a thermal bridge between the IC components

and metal backing plate. Heat is conducted from the package through the metal core to an

additional heat sink. On the FR4 board the heat remains stagnant if not transferred by a

topical heatsink. According to Avago’s white paper a MCPCB with a 1W LED

remained near an ambient of 25C, while the same 1W LED on a FR4 board reached 12C over ambient.

Aluminium PCB Construct:

1. Circuit layer

2. Insulatinglayer

3. Aluminum substrate

Advantage of LED PCB

1. heat dissipation

Some LEDs dissipate between 2-5W of heat and failures occur when the heat from a LED is not properly removed;

a LED’s light output is reduced as well as degradation when the heat remains

stagnant in the LED package. The purpose of a MCPCB is to efficiently remove the

heat from all topical IC’s (not just LEDs). The aluminum base and thermally conductive

dielectric layer act as bridges between the IC’s and heat sink. One single heat sink is

mounted directly to the aluminum base eliminating the need for multiple heat sinks

on top of the surface mounted components.

2. thermal expansion

Thermal expansion and contraction is the common nature of the substance,

different CTE is different in thermal expansion. As its own characterics,

aluminum and copper have unique advance than normal FR4,

thermal conductivity can be 1.0~7.0 W/c.K

3. dimensional stability

It is clear that the size of the metal-based printed circuit board more stable than insulating materials.

The size change of 2.5 ~ 3.0% when Aluminum PCB and aluminum sandwich

panels was heated from 30 ℃ to 140 ~ 150 ℃.

• ase material: Aluminum/Copper/Iron Alloy

• Thermal Conductivity (dielectrial layer): 0.8, 1.5, 2.0, 3.0 W/m.K.up to 10 w/m.k

• Board Thickness: 0.5mm~3.0mm(0.02″~0.12″)

• Copper thickness: 0.5 OZ, 1.0 OZ, 2.0 OZ, 3.0 OZ, up to 10 OZ

• Outline: Routing, punching, V-Cut

• Soldermask: White/Black/Blue/Green/Red Oil

• Legend/Silkscreen Color: Black/White

• Surface finishing: Immersion Gold, HASL, OSP

• Max Panel size: 600*1500mm(23.62″*59”)

• Packing: Vacuum/Plastic bag

• Samples L/T: 4~6 Days

• MP L/T: 5~7 Days

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Global Well Electronic Limited as a professional PCB&PCBA manufacturer vendor, focuses on the production and manufacture of precision multilayer boards and special boards and has set up branches in many cities. The company adheres to the core values of "Customer First, Quality First, Continuous Innovation, Win-Win Cooperation", and is committed to providing global customers with good price, good quality, good service and fast delivery, creating greater value for customers and employees.

The company focuses on electronic products from PCB design- PCB production-SMT&DIP assembly - PCBA burn process and testing- Conformal coating - Electronic components procurement - finished product assembly and other one-stop manufacturing services. We are certified by UL, ISO9001,ISO13485, IATF1694, ISO14001, REACH, RoHS.

Global Well has a professional technology development team, mastering the industry's advanced process technology, with reliable production equipment, testing equipment and a fully functional physical and chemical laboratory. Our products are widely applied for including computers, power electronics, medical instruments, security electronics, consumer electronics, military equipment, power communication, industrial automation, AI artificial intelligence and smart home, and are exported to North America, South America, Europe, Southeast Asia and other countries and regions.

The company's core advantages：

1. More than 4500+ customers and cover 210+ Countries ;
2. 15years+ experience in PCB manufacturing, assembly, components sourcing one-stop serice;
3. Support ODM&OEM, with professional engineer desingers team;
4. 100% AOI and functional testing