Diode pickling device

Abstract

The invention discloses a diode pickling device belonging to the field of manufacturing of diodes. The diode pickling device comprises a pickling tank, a motor and a pickling box, wherein a pickling frame is arranged in the pickling tank; the side wall of the top end and the bottom surface of the pickling frame are in a net shape; a vibration frame is fixed at the top end of the pickling frame; the motor is located at one side of the pickling tank; a vibration device is fixed at an output end of the motor; the vibration frame is connected with the vibration device; the pickling box is located at one side, far away from the pickling tank, of the motor; the pickling box is connected with a liquid supply pipe; an outlet of the liquid supply pipe is located above the pickling tank; and a liquid supply valve is arranged at the outlet of the liquid supply pipe. According to the diode pickling device, the dosage of a pickling solution is controlled through the liquid supply valve; a diode fully contacts the pickling solution in the pickling process through the motor and the vibration device; pickling of the diode can be finished with only a little of pickling solution; the pickling solution is high in utilization rate and high in pickling efficiency; the surface of the diode is pickled evenly; and the pickling quality is good.

Description

technical field [0001] The invention relates to the field of diode manufacturing, in particular to a diode pickling device. Background technique [0002] A diode is an electronic component, a device with two electrodes that only allows current to flow in one direction. The most common function of a diode is to only allow current to pass in a single direction (called forward bias), and to block it when it is reversed (called reverse bias). So a diode can be thought of as the electronic version of a check valve. [0003] In the existing production process of axial diodes, the process flow is: lead wire arrangement—chip screening—chip loading—welding—pickling—gluing—baking—plastic sealing—post curing— --Electroplating---Printing test--External inspection--Packaging. The existing diode surface pickling device generally includes a pickling plate and a pickling tank. The pickling plate is arranged on the pickling tank, and the pickling plate is provided with an acid leakage hol...

AI Technical Summary

Problems solved by technology

Because the pickling solution is highly corrosive, in the cleaning process, the pickling solution is generally washed directly onto the surface of the diode to clean the diode. When this cleaning method is used, the use efficiency of the pickling solution is low, and generally it takes It takes a lot of pickling solution to clean the surface of the diode, and the cleaning time will be longer, and the work efficiency is low; the distribution of the diodes on the pickling plate is uneven, resulting in that the surface of the diode cannot be evenly contacted with the acid solution during the pickling process. The pickling of the diode surface is uneven, and the pickling quality of the diode is low

Images