The copper-free hole is a functional problem of PCB. With the development of science and technology, the precision (aspect ratio) of PCB becomes higher and higher, which not only brings trouble to PCB manufacturer (the contradiction between cost and quality) but also brings serious quality hidden trouble to downstream customers!
Classification and characteristics of copper-free holes
XPCB Limited is a high quality PCB & PCBA manufacturer based in China.
We specialize in complex flexible circuit, rigid-flex PCB and ELIC HDI PCB.
Quick-turn prototyping service and one-stop PCB assembly service are readily available.