Embedded component PCB，Buried capacitance and resistance board，Buried blind vias PCB

The products are widely used in: consumption, automobile, industrial control, power supply, security, medical and other fields.
A printed circuit board containing a buried resistor comprises, from bottom to top, a first dielectric layer, a buried resistor, a circuit layer and a second dielectric layer, wherein a portion of the buried resistor on which the circuit layer is not provided is covered with a polymer isolation layer, and the surface of the polymer isolation layer is roughened, and its surface roughness Rz is greater than 0.01 μm, and the thickness of the polymer isolation layer at the corner is at least 0.1 μm. The printed circuit board of the utility model covers a layer of polymer isolation layer on the surface of the buried resistor, thereby protecting the buried resistor from being attacked and corroded by chemical solutions in subsequent wet processes such as browning and super-roughening, improving the process capability of manufacturing buried resistor boards, and further promoting the application of buried resistor boards to inner buried resistors.