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Schottky diode capable of switching positive electrode and negative electrode

A technology of Schottky diodes, positive and negative poles, applied in the field of diodes, can solve the problems of difficult operation and long time consumption, and achieve the effects of low difficulty in operation, improved heat dissipation performance, and simple structure

Active Publication Date: 2022-05-13
先之科半导体科技(东莞)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In practical applications, due to workers or operating errors, it is easy to reverse the positions of the positive and negative conductive pins. In order to correct the reverse soldering problem, the conventional method is to scrape off the solder, correct the position and then re-solder. Difficult and time consuming

Method used

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  • Schottky diode capable of switching positive electrode and negative electrode
  • Schottky diode capable of switching positive electrode and negative electrode
  • Schottky diode capable of switching positive electrode and negative electrode

Examples

Experimental program
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Effect test

Embodiment 1

[0026] Such as figure 1 The shown Schottky diode with switchable positive and negative poles includes an insulating plastic package 1, and the insulating plastic package 1 is provided with a first Schottky chip 2, a second Schottky chip 3, and a first Schottky chip. The cathode side of the chip 2 is opposite to the cathode side of the second Schottky chip 3, the anode end of the first Schottky chip 2 is connected to the first conductive pin 4 through solder paste, and the anode end of the second Schottky chip 3 The second conductive pin 5 is connected through solder paste.

[0027] A conductive module 6 is connected between the first Schottky chip 2 and the second Schottky chip 3, the conductive module 6 is a U-shaped conductive plate, and the left end of the first Schottky chip 2 and the U-shaped conductive plate is connected by solder paste , the second Schottky chip 3 is connected to the right end of the U-shaped conductive plate through solder paste, the upper end of the ...

Embodiment 2

[0033] Such as image 3 The shown Schottky diode with switchable positive and negative poles includes an insulating plastic package 1, and the insulating plastic package 1 is provided with a first Schottky chip 2, a second Schottky chip 3, and a first Schottky chip. The cathode side of the chip 2 is opposite to the cathode side of the second Schottky chip 3, the anode end of the first Schottky chip 2 is connected to the first conductive pin 4 through solder paste, and the anode end of the second Schottky chip 3 The second conductive pin 5 is connected through solder paste.

[0034] A conductive module 6 is connected between the first Schottky chip 2 and the second Schottky chip 3, the conductive module 6 is a T-shaped conductive plate, and the left end of the first Schottky chip 2 and the T-shaped conductive plate is connected by solder paste , the second Schottky chip 3 is connected to the right end of the T-shaped conductive plate through solder paste, the upper end of the ...

Embodiment 3

[0040] Such as Figure 4 The shown Schottky diode with switchable positive and negative poles includes an insulating plastic package 1, and the insulating plastic package 1 is provided with a first Schottky chip 2, a second Schottky chip 3, and a first Schottky chip. The cathode side of the chip 2 is opposite to the cathode side of the second Schottky chip 3, the anode end of the first Schottky chip 2 is connected to the first conductive pin 4 through solder paste, and the anode end of the second Schottky chip 3 The second conductive pin 5 is connected through solder paste.

[0041] A conductive module 6 is connected between the first Schottky chip 2 and the second Schottky chip 3, the conductive module 6 is a U-shaped conductive plate, and the left end of the first Schottky chip 2 and the U-shaped conductive plate is connected by solder paste , the second Schottky chip 3 is connected to the right end of the U-shaped conductive plate through solder paste, the upper end of the...

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Abstract

The invention provides a Schottky diode capable of switching positive and negative electrodes, which comprises an insulating plastic package body, a first Schottky chip and a second Schottky chip are arranged in the insulating plastic package body, and two opposite surfaces of the first Schottky chip and the second Schottky chip have the same polarity; a conductive module is connected between the first Schottky chip and the second Schottky chip, and the upper end of the conductive module is connected with a first contact part and a second contact part; a switch module is arranged on the insulating plastic package body; when the first conductive pin and the first contact part are powered on, the second conductive pin and the second contact part are powered off; when the second conductive pin and the second contact part are powered on, the first conductive pin and the first contact part are powered off. According to the Schottky diode, the positive electrode and the negative electrode of the Schottky diode can be easily converted, the structure is simple, and the operation difficulty is low.

Description

technical field [0001] The invention relates to the technical field of diodes, in particular to a Schottky diode with switchable positive and negative poles. Background technique [0002] The Schottky rectifier is a metal-semiconductor device made of precious metals such as gold, silver, aluminum, platinum, etc. A as the positive electrode, and an N-type semiconductor B as the negative electrode. The potential barrier formed on the contact surface of the two has rectification characteristics. Because there are a large number of electrons in the N-type semiconductor and only a small amount of free electrons in the noble metal, the electrons diffuse from B with high concentration to A with low concentration. Obviously, there are no holes in metal A, and there is no diffusion of holes from A to B. As electrons continue to diffuse from B to A, the electron concentration on the surface of B gradually decreases, and the surface electrical neutrality is destroyed, thus forming a p...

Claims

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Application Information

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IPC IPC(8): H01L29/872H01L23/367H01L23/498H01L29/40
CPCH01L29/872H01L23/3672H01L29/40H01L23/498
Inventor 周勇
Owner 先之科半导体科技(东莞)有限公司
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