Hi Everyone,

Today, I'm going to talk about a type of high frequency PCB made on 12mil RO4003C pressed with FR-4.

This board is designed as a 4-layer structure. 4-layer PCB is relatively simple and inexpensive, which is helpful to open up a new market.

Viewing from stack up, we can see

The first layer to the second layer and 4th layer to 3rd layer are 12mil core of RO4003C, the core has fixed thickness which is very important to the electrical length of RF lines on the circuit board, and the rest are FR-4 materials. Copper weight on inner layer and outer layer is 1 ounce.

The surface finish of this board is HASL. Other finish like Immersion gold, immersion tin, immersion silver and OSP etc. are available for your option.

At present, the mature mixed pressing materials are as follows:

RO4350B + FR4;

RO4003C + FR4;

F4B + FR4;

Duroid/RT5880 + RO4350B

Duroid/RT5880 + FR4

At the same time, we are able to supply blind via board, buried via board and HDI board. All the PCB's of our company will go through AOI test, open and short circuit test, solderability test and 288 ℃ thermal stress test to ensure high quality PCB shipped to your hands.

If you're interested in, please feel free to contact us. Thank you for your reading.

Bicheng PCB is headquartered in Shenzhen, a city with great economic vitality. Based in China, we adhere to the philosophy of servicing small and medium sized companies offering variety of circuit boards to meet the demands of market.

We maintain the highest standards which support products that exhibit exceptional quality, performance and reliability. The circuit board ranges from conventional FR-4 to PTFE, metal core to flexible circuits which are used in the industries of home appliances, portable and consumable electronics, medical filed, aerospace as well as telecommunications etc.

Main material partners