Diode pickling machine

A pickling machine and diode technology, which is applied in the manufacture of electrical components, semiconductor/solid-state devices, circuits, etc., can solve problems such as large environmental pollution, strong corrosion, and large human injuries

Inactive Publication Date: 2016-02-24
CHONGQING CASEY YI ELECTRONICS TECH CO LTD
View PDF4 Cites 10 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

During the pickling process, chemical reagents such as mixed acid and hydrogen peroxide should be used to treat the surface of the diode. The mixed acid is usually mixed with nitric acid, sulfuric acid, hydrofluoric acid and acetic acid in a certain proportion. There will be a certain amount of acid

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Diode pickling machine

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0011] The present invention will be described in further detail below by means of specific embodiments:

[0012] The reference signs in the drawings of the description include: bracket 1, pickling tank 2, acid tank 3, collecting cover 4, exhaust fan 5, exhaust pipe 6, rotating shaft 7, isolation cloth 8, liquid supply pipe 9, limiter Flow valve 10, strut 11.

[0013] The embodiment is basically as attached figure 1 Shown: diode pickling machine, including pickling tank 2, base, acid tank 3. The pickling tank 2 is located at the upper end of the base, and the inner wall of the pickling tank 2 is provided with a plurality of ultrasonic vibration plates. The base on one side of the pickling tank 2 is provided with a vertical support 1, and the acid tank 3 is fixed on the side of the support 1 close to the pickling tank 2, and the acid tank 3 is located at the side of the pickling tank 2 Above, the pickling tank 2, the base and the support 1 are integrally formed. A liquid su...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The invention discloses a diode pickling machine in the diode manufacturing field, and the diode pickling machine comprises a pickling trough, a base and a pickling tank. The pickling trough is located at the upper end of the base, one side, where the pickling trough locates, of the base is provided with a vertical support, the pickling tank is fixed to one side, close to the pickling trough, of the support, the pickling tank is located above the pickling trough, and the bottom of the pickling trough is provided with a liquid supply pipe. The top of support is provided with a flow collecting cover, the top end of the flow collecting cover is provided with a drawing fan, and an exhaust pipe is connected to the drawing fan. The flow collecting cover locates above the pickling trough, the outer side wall at the lower end of the flow collecting cover is hinged with a rotary shaft, and transparent isolation cloth is fixed to the rotary shaft. Through arrangement of the flow collecting cover, the drawing fan, the isolation cloth and the like, acid mist volatilized in the diode pickling process is isolated and detached, the acid mist diffusing in a processing place is prevented from causing damage on a human body and pollutions on environment, the diode pickling machine is relatively environmental-friendly, and pickling environment of diodes is relatively healthy.

Description

technical field [0001] The invention relates to the field of diode manufacturing, in particular to a diode pickling machine. 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 ho...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): H01L21/329B08B3/08
CPCH01L29/6609B08B3/08
Inventor 魏广乾
Owner CHONGQING CASEY YI ELECTRONICS TECH CO LTD
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap