PCB Materials

Sunstone Circuits utilizes the following materials for PCB manufacturing:

For certain designs, PCB dielectric properties are critical.

Whether you're working on high-speed designs, RF, microwave, or mobile applications where power management is crucial, there are many situations where standard FR-4 materials just won't suffice. Understanding this, we have expanded our range of materials to include options like the Rogers 4000-series. These low-loss dielectric materials provide enhanced performance for your high-demand PCB prototypes or production needs.

You can find more information on all of Rogers' laminate products in the Rogers High Frequency Laminates Product Selector Guide.


Dielectric Materials:
A dielectric material is a poor conductor of electricity and is used as an insulating layer in PCB construction. Materials such as porcelain, mica, glass, plastics, and some metal oxides are excellent dielectrics. The effectiveness of a dielectric material increases as dielectric loss (energy lost as heat) decreases. If the voltage across a dielectric becomes too great, the material will begin to conduct current, a phenomenon known as dielectric breakdown. Rogers 4350 is less likely to experience dielectric breakdown compared to FR-4.

Pre-impregnated (Pre-preg):
Short for "pre-impregnated composite fibers," pre-pregs are used in PCB manufacturing to influence the performance characteristics of the board. This term also refers to the bonding ply materials used to bond the layers of a multilayer PCB.