Polarity determining device of direct plug-in type two-pin semiconductor

Abstract

The invention provides a polarity determining device of a direct plug-in type two-pin semiconductor. The device comprises a power supply module, a frequency control module, a testing signal generation module, a test module, an optocoupler module, an amplifying module, a logic processing module, a NOT gate circuit module and a control module, wherein the testing signal generation module is connected with the frequency control module and used for outputting a pair of alternate square wave testing signals with opposite polarities; the test module outputs testing square wave pulse signals after current which passes through the alternate square wave testing signals passes through a test point; the optocoupler module converts the testing square wave pulse signals into backward signals, the amplifying module is used for amplifying the backward signals; the logic processing module converts the amplified backward signals into digital signals logically; the NOT gate circuit module amplifies the digital signals reversely and outputs driving current; and the control module controls the semiconductor according to testing states of the semiconductor. During online high-speed testing, a state of a semiconductor bulk material can be identified accurately, the direction of the bulk material is accurately led into a feeding channel, and misdirection, short circuit and open circuit are avoided.

Description

technical field [0001] The invention relates to the field of semiconductor polarity judgment, in particular to an in-line two-pin semiconductor polarity judgment device. Background technique [0002] Since the states of semiconductor bulk materials include positive direction, reverse direction, short circuit and open circuit, it is difficult to distinguish their states during online high-speed testing. Therefore, traditional plug-in machines can only tape various horizontal semiconductor electronic components A predetermined sequence program is inserted into the PCB (circuit board), and then the feet are bent and cut, but the bulk semiconductor electronic components cannot be automatically inserted into the PCB; that is, in the prior art, the bulk materials must be braided into 52mm, spacing 5mm and parallel perpendicularity ± 0.5mm braiding materials can be used, resulting in low production efficiency and high labor costs. Contents of the invention [0003] The technica...

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Problems solved by technology

[0002] Since the states of semiconductor bulk materials include positive direction, reverse direction, short circuit and open circuit, it is difficult to distinguish the state during online high-speed testing. Therefore, the traditional plug-in machine can only tape various horizontal semiconductor electronic A predetermined sequence program is inserted into the PCB (circuit board), and then the feet are bent and cut, but the bulk semiconductor electronic components cannot be automatically inserted into the PCB; that is, in the prior art, the bulk materials must be braided into 52mm, spacing 5mm and parallel perpendicularity ± 0.5mm braiding materials can be used, resulting in low production efficiency and high labor costs

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