Basic Materials Needed for PCB Assembly

Printed Circuit Board or PCB perfunctorily supports electrical components that are electronically connected with conductive ways and traces fixed with cooper sheets which are coated on a non-conductive substrate. There are standards set for much of electronic assembly, quality control and PCB design by the IPC organization. For example, IPC-2221A is the basic standard for a printed circuit design, regardless of the material used in manufacturing the board.

Various PCB materials together make a range of PCB specifications and prices in printed circuit board production and prototyping. Boards with 1 or 2 layers require one pre-preg ‘core’ or numerous layer-boards which use different types of cores within construction.


Made up from fine layers of fiberglass, pre-preg is a material which is pre-impregnated with the help of bonding agent or metal core in the form of a sheet. It has lots of different measures depending on the required density and intended use of the board. The width of the board varies from a few mils for flex board to a quarter-inch dense for hefty burn in the board. Core materials are similar to slim double sided boards which typically have dialectic elements such as fiberglass and copper foil found on both sides. These are usually referred to predefined thickness.

PCB Prototyping with FR4

Made up from glass fiber, this is the most commonly used family of substrates in printed circuit boards. FR4 comes with the most standardized material with higher constants like FR4-06 or FR4-08. Also, it has higher temperature constants and lower dielectric coefficients. With a starting TG of 140 degrees Celsius, the temperature increases as you move up the FR family. For instance, the material of FR4-06 comes with a TG of 170 degrees.

PCB Prototyping with Metal Core

Metal core is a popular choice when it comes to PCB prototyping in a light emitting diode printed circuit board. It’s an amazing material which is basically known for great heat elimination. The metal core works as a superlative heat sink in order to ensure the safety of the LEDs. Mainly, a single-layer metal core PCB includes a metal base (usually a non-conductive aluminum layer), a copper-circuit layer, solder mask, and IC components.

PCB Prototyping with Polyimide for flexibility

Polyimide is a tougher substance than FR4 and can sustain hotter temperatures. This trait makes it the best material for use in those electrical insulation applications that need to fulfill the class ‘H’ requirements. Polyimide has a silicone adhesive design and a polyimide film fabricated to endure high temperatures. It can well protect edge connectors and gold edge fingers during the process of wave soldering as well as safeguard the reflow soldering process during PCB assembly.

PCB Prototyping with Isola Range

Isola range is a blend of high-performance FR4 epoxy laminate and pre-preg system. It is commonly used in advanced circuitry applications. It has low dielectric number along with long dissipation element that makes it a perfect substance to be used in broadband circuit designs that need improved signal integrity and faster signal speed.

If you are looking for a good firm to help you have PCB designed and built, use RayMing Technology to avail the best services in the town. They not only suggest smart design options but also provide valuable contribution to make your product.

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