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SMT PCB Assembly FAQ
1.What is a heavy copper PCB?
Heavy copper PCBs use 4 or more ounces of copper per layer.
2.What is the thickness of a metal core PCB?
The thickness of the metal core in a PCB substrate is typically 30 mil - 125 mil, but thicker and thinner boards are possible.
3.What are the advantages of metal core board?
Metal core boards transfer heat 8 to 9 times faster than FR4 PCBs. These metal core laminates keep heat-generating components cool by dissipating heat faster. The dielectric material is kept as thin as possible in order to create the shortest path from the heat source to the metal backplane.
4.How is a metal core PCB made?
If the board is a single-layer board with no layers transitioning back to the metal plate, the dielectric layers can be pressed and bonded to the metal plate using the standard process used with FR4 dielectrics
5.What is a metal core PCB?
A metal core printed circuit board (MCPCB) is a printed circuit board that contains base metal materials. The core is designed to transfer heat away from components that generate a lot of heat.
6.What are the storage conditions for aluminum substrates?

Aluminum PCBs are usually stored in a dark, dry environment. Most aluminum PCBs are susceptible to moisture, yellowing and blackening. It should generally be used within 48 hours of opening the vacuum pack.

7.What are the structures of aluminum substrates?

Circuit copper layer, insulating layer, metal substrate.

8.What are the advantages of aluminum substrates?

Environmental protection, fast heat dissipation, good durability, lightweight

9.What is an aluminum substrate?

Among all metal core PCBs, aluminum core PCBs are the most common type. The base material consists of an aluminium core and standard FR4. It features thermal cladding to efficiently dissipate heat while cooling components and improving the overall performance of the product.

10.Where are rigid PCBs used?
Laptops, Tablets, Cell Phones, Heart Monitors, CAT Scans, MRI Systems, Aircraft Cockpit Instruments, Temperature Sensors, Control Tower Instruments, etc...
11.What are the characteristics of rigid PCB?
Rigid PCB is a regular PCB, it cannot be like Flexi PCB because rigid PCB cannot be twisted or folded into any shape because it has FR4 reinforcement which is very useful for increasing stiffness. Rigid PCBs are cheaper than flexible PCBs. They are traditional PCBs that are widely used in many electronic products.
12.What is the difference between rigid board and flexible board?
Rigid PCBs are circuit boards built on rigid base layers that cannot be bent, while flexible PCBs, also known as flex circuits, are built on flexible base layers that can be bent, twisted and folded.
Just upload Gerber files, BOM files and design files, and the KINGFORD team will provide a complete quotation within 24h.