Method for Embedding Resistors in Printed Circuit Board and Printed Circuit Board

Abstract

The invention discloses a method for embedding resistors in a printed circuit board and the printed circuit board thereof, comprising a connecting cylinder, a fixing plate is arranged inside the connecting cylinder, a plurality of air holes are arranged on the fixing plate, the fixing plate A moving block is installed below, the moving block and the inner wall of the connecting cylinder are in a matching structure, a bottoming spring is installed between the moving block and the fixed plate, a bottoming needle is installed on the lower side of the moving block, and the bottoming needle The lower end extends to the outside through the bottom of the connecting cylinder, the probe is a hollow structure, the probe is provided with a plurality of ventilation grooves, and the probe device is equipped with an air blowing device and a liquid suction device. The present invention first Use a small drill to create a protective layer around the resistance tank. Through the protection of the protective layer, air blowing device and liquid suction device, excessive erosion is prevented. It has the characteristics of not damaging the circuit board and small resistance deviation.

Description

technical field [0001] The invention relates to the technical field of printed circuit boards, in particular to a method for embedding resistors in a printed circuit board and the printed circuit board thereof. Background technique [0002] With the rapid increase of digital products that send and receive signals at a high speed in electronic products, high-density packaging technology has increasingly shown its importance. Embedded components can shorten the distance of signal transmission, improve electrical characteristics, improve and increase the effective area of ​​the package, reduce soldering parts, and improve the reliability of the package. At the same time, small size and easy packaging are very beneficial to reduce costs, especially to improve electrical characteristics. Embedded planar thin-layer resistors are generally used in the special printed circuit board manufacturing technology layer of the inner printed circuit information of the multi-layer board. The...

AI Technical Summary

Problems solved by technology

[0003] Existing circuit boards use chemical erosion or grinding drills to open the grooves when digging the resistance slots. However, when the grinding drills are used for slotting, although the large grinding drills are fast in slotting, they are easy to damage the circuit boards. At the same time, chemical erosion is the safest, but It is difficult to control the thickness and width of the slot, which may easily lead to resistance deviation

Images