4-ชั้น Rogers สเปรย์บอร์ด PCB ดีบุก

Composition and Structure

4-layer PCB means that the printed circuit board is made of 4 layers of fiberglass. There are four routing layers: top, bottom, VCC, and GND. โดยทั่วไป, ผ่านหลุม, buried holes, and blind holes are used to connect the layers. There are more buried and blind vias than double-sided.

ข้อควรพิจารณาในการออกแบบ

นอกจากนี้, try not to run signal traces on the VCC and GND layers.

Advantages Over Double-sided Rogers PCB Boards

Compact Design

4-layer PCB boards have many advantages over double-sided Rogers PCB boards. They can be designed to be more compact.

Improved Noise Immunity

They have significantly improved noise immunity.

Easier Layout

And are easier to lay out.