The Role of Resin and Copper in PCB Durability and Performance

When it comes to the usage of electronic circuits, PCBs from PCB Manufacturer with incorporated electronic components are present in virtually all electrical devices.

PCBs can be classified into different types:

• Rigid
• Flex
• Rigid/Flex

Certain boards may call for a material that has physical properties defining electrical characteristics at high frequencies and data speed. Furthermore, some boards may need to be exposed to high temperatures and may need thermally conformal or material boards or those that need a heat dispersion system.

PCB materials from PCB Manufacturer provides PCB materials and they are made up of three elements that are compiled to work together so that they can meet the specific needs of the electronic system: The glass work of copper, resin was done with copper forming the base material for the case while the resin and glass were used to cast two parts of the case.

Glass

As for the glass fabric it is produced in different width and thickness range.

Resin

The resin  is established based on what properties are required in the design of the board functions. i.e Tg, Dk, Df etc.

The resin must be likewise tolerant with the glass fabric and the copper foil that are utilised in the manufacture of the printed circuit board.

Copper

Weight is given in terms of lb and foil type.

The copper has to be with a good peel strength in other not to delaminate from the glass and the resin.

Thermoset: These have relatively high melting points, though once they have melted and are exposed to a particular temperature at which they solidify the constituents and characteristics become more or less permanent. They cannot be remitted or regenerated to their initial purity and state. Reinforced thermos set materials include epoxy resin, polyimide resin, and aramid resin.

Thermoplastic: They have low melting points, and when heated will merely become soft enough or even be liquefied. This in turn means that they can be formed into almost any shape or form and made to fit almost any design. In other words, if the material turns into ashes through intense heat, the materiality of the cell is not altered. Thermoplastic type is generally made from PTFE with incorporation of organic or inorganic fillers.

Thermoset materials are procured as laminates from the manufacturer. C stage i.e., after the polymer (Prepreg ) known as B stage has been processed through a cycle of heating up to 200 degree centigrade as well as at high pressure between two copper foils.

Preg is typically a woven glass fabric infused in some form of resin. As it was mentioned earlier the resin could be of different types. As with the glass fibers, the types of glass and thicknesses might also differ between each E-Glass strand.