MCPCBs can be categorized into five basic types
1. single-layer MCPCB - only one trace layer on one side. Single-layer MCPCBs consist of a single copper conductive layer, a metal substrate (such as aluminum) and a dielectric layer as an insulator.
2. COB MCPCB is a chip-on-board, single trace layer. COB MCPCBs are in direct contact with a metal core. The metal core dissipates heat and provides an electrical connection to the PCB traces (wire bonding), providing power.
3. Double-layer MCPCBs - two layers of traces on one side. A double-layer MCPCB consists of a metal core (usually aluminum, copper, or iron alloy) and two copper conductive layers on one side. The metal core is located at the bottom of the MCPCB, unlike a double-sided MCPCB where the two copper layers are located on each side of the metal core. The assembly is only on the top surface.
4. Double-sided MCPCBs - two trace layers on each side. The metal core is placed between the two conductors. The conductors (tracks) are on either side of the metal core and are connected to each other through holes. Therefore, such a PCB is called a "double-sided metal core PCB". SMD components are installed on both the top and bottom sides.
5. Multilayer MCPCBs - more than 2 conductive layers (signal and ground layers) with transition holes separated by a thermally conductive dielectric material. Allow more components to be placed on the board to achieve better electrical performance.
2. COB MCPCB is a chip-on-board, single trace layer. COB MCPCBs are in direct contact with a metal core. The metal core dissipates heat and provides an electrical connection to the PCB traces (wire bonding), providing power.
3. Double-layer MCPCBs - two layers of traces on one side. A double-layer MCPCB consists of a metal core (usually aluminum, copper, or iron alloy) and two copper conductive layers on one side. The metal core is located at the bottom of the MCPCB, unlike a double-sided MCPCB where the two copper layers are located on each side of the metal core. The assembly is only on the top surface.
4. Double-sided MCPCBs - two trace layers on each side. The metal core is placed between the two conductors. The conductors (tracks) are on either side of the metal core and are connected to each other through holes. Therefore, such a PCB is called a "double-sided metal core PCB". SMD components are installed on both the top and bottom sides.
5. Multilayer MCPCBs - more than 2 conductive layers (signal and ground layers) with transition holes separated by a thermally conductive dielectric material. Allow more components to be placed on the board to achieve better electrical performance.