(Printed Circuit Boards are custom-made products. The picture and parameters shown are for reference only.)

Hello everyone,

Warm greetings!

Today, we’ll discuss a 4-layer hybrid PCB designed for attenuator applications, constructed using 8mil (0.203mm) RO4003C and FR-4 materials. The board has a total thickness of 1.1mm, featuring a blue solder mask and immersion silver finish on the pads, with 1oz copper on each layer. This is a straightforward multilayer PCB with a hybrid structure, manufactured in compliance with IPC 6012 Class 2 standards based on provided Gerber files. Each board undergoes 100% electrical testing before delivery, and shipments are packed in sets of 25 boards.

Now, let’s take a closer look at the stack-up.

Layer 1 to Layer 2 consists of the RO4003C core, which has a fixed thickness of 8mil (0.203mm). This precise thickness is critical for maintaining the electrical length of RF lines on the circuit board. The remaining layers are constructed using FR-4 material. The board features through-hole designs for all connections.

Below is the micro-section diagram for reference.

Features and Benefits :

1) RO4003C exhibit a stable dielectric constant over a broad frequency range. This makes it an ideal substrate for broadband applications;

2) Signal integrity performance improvement over the stack-ups with all FR4 build-up;

3) ISO9001, ISO14001, IATF16949, ISO13485, UL Certified;

4) Thermal stress test, reliability test, insulation resistance test and ionic contamination test, AOI test etc.

5) No MOQ required;

6) More than 19+ years of high frequency PCB experience;

7) 16000㎡ workshop; 30000㎡ output capability per month and 8000 types of PCB's per month;

8) Powerful PCB capabilities support your research and development, sales and marketing;

RF transceiver

Power divider

LNB Attenuator

Directional coupler

Photocoupler