Electronic component manufacturing method

Abstract

The invention belongs to the technical field of production of electronic products, and specifically relates to an electronic component manufacturing method. An injection mold is adopted to perform plastic package, and the injection mold includes a rack, a mold, a drainage mechanism and an air control mechanism. The steps of plastic package include A, prearranging gas; B, feeding; C, injection; D,cooling molding; and E, demolding. In Step A, a piston rod is pulled downward, so that gas enters into a cylinder; in Step B, chips are put at the bottom of a fixed groove, the piston rod is continuedto be pulled downward, and the chips are fixed; in Step C, molten plastic package resin is injected into the fixed groove from a drainage rod, and at the same time, the piston rod is continued to bepulled downward; in Step D, the piston rod is fixed, the mold is cooled, and the plastic package resin is molded; and in Step E, the piston rod and sliding racks move upward, and demolding is performed. By adoption of the scheme, rein can be effectively prevented from flowing to the bottoms of the chips in the injection molding process, the risk of a chip lead short circuit is reduced, and the product yield is improved.

Description

technical field [0001] The invention belongs to the technical field of electronic product production, and particularly relates to a method for manufacturing electronic components. Background technique [0002] There are many classifications of electronic components. A single device such as a resistor and a capacitor is called a basic device, while a chip integrates many basic devices into a very small circuit board, so it is also called an integrated circuit. The chip is small in size and is the most important part of an electronic product, responsible for computing and storage functions. The complete process of chip fabrication includes several links such as chip design, wafer fabrication, packaging fabrication, and cost testing. Among them, chip packaging is to install a shell outside the semiconductor integrated circuit chip, so as to place, fix, seal, protect and enhance the electrical and thermal performance of the chip, and the packaging process is also a bridge to co...

AI Technical Summary

Problems solved by technology

[0004] However, there are still the following defects in the current injection molding process: resin is injected from the side of the mold, not only it is easy for the resin to overflow to the bottom of the chip, resulting in overflow; moreover, the resin is easy to impact the lead wire at the end of the chip near the injection port, making each lead wire Under the action of the fluid, there is an offset and contact between them, causing a short circuit of the wires, resulting in the scrapping of the chip; increasing the defective rate of the product

Images