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A kind of conductive paste and semiconductor device made of it

A technology of conductive paste and air duct, which is applied to conductive materials, semiconductor devices, circuits, etc. dispersed in non-conductive inorganic materials, can solve the problem that the pattern uniformity needs to be further improved, and achieve good printability and excellent plasticity. , the effect of neat graphics

Active Publication Date: 2020-11-10
CHANGZHOU BAOBANG NEW ENERGY MATERIAL
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the cleanness and clarity of the grid line edges and the uniformity of the graphics still need to be further improved after using

Method used

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  • A kind of conductive paste and semiconductor device made of it
  • A kind of conductive paste and semiconductor device made of it
  • A kind of conductive paste and semiconductor device made of it

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0058] Synthesis of Vinylpyrrolidone Microgel PVP Microgel

[0059] A 1000mL four-necked bottle is equipped with a dropping funnel, a reflux condenser, a thermometer and an air guide tube, and placed in a constant temperature water bath. Add 400.0g of cyclohexane and 0.80g of emulsified water with a mass ratio of 4:1 to the bottle in sequence. Agents Span 80 and Tween 80, stirred under nitrogen to make the layer a transparent oil phase solution. Add an ice pack to control the temperature of the water bath at around 0°C. Dissolve 25.0 g of N-vinylpyrrolidone (NVP), 0.08 g of N,N'-methylenebisacrylamide (MBA) and 0.021 g of ammonium persulfate (APS) in 40 g of deionized water under continuous stirring for half an hour Slowly add the aqueous solution dropwise to the above emulsified oil phase solution. After half an hour of reaction, 100 μL of tetramethylethylenediamine (TMEDA) was added, the temperature was gradually raised to 20° C., and the reaction was terminated after stir...

Embodiment 2

[0067] Synthesis of Acrylamide Microgel PDMAM Microgel

[0068] A 1000mL four-necked bottle is equipped with a dropping funnel, a reflux condenser, a thermometer and an air guide tube, and placed in a constant temperature water bath. Add 400.0g of cyclohexane and 0.80g of emulsified water with a mass ratio of 3:1 to the bottle in sequence. Agents Span 80 and Tween 80, magnetically stirred under the condition of nitrogen gas to make the layer into a transparent oil phase solution. Add an ice pack to control the temperature of the water bath at around 0°C. Dissolve 20.0 g of N,N'-dimethylacrylamide (DMAM), 0.12 g of N,N'-methylenebisacrylamide (MBA) and 0.018 g of ammonium persulfate (APS) in 40 g of In deionized water, slowly add the aqueous solution dropwise to the above-mentioned emulsified oil phase solution within half an hour. After half an hour of reaction, 100 μL of tetramethylethylenediamine (TMEDA) was added, the temperature was gradually raised to 20° C., and the re...

Embodiment 3

[0073] Synthesis of Acrylic Microgels

[0074] A 1000mL four-necked bottle is equipped with a dropping funnel, a reflux condenser, a thermometer and an air guide tube, and placed in a constant temperature water bath. Add 450g of deionized water to the bottle and heat it to 85°C. Then add 400mg sodium dodecylsulfonate (SDS) and 1.4g7%KH 2 PO 4Solution (pH value about 7), respectively add 92g methyl methacrylate (MMA) and 276mg ethylene glycol dimethacrylate (EGDMA) crosslinking agent into a beaker to make a monomer mixture. About 30 mL of the monomer mixture was added to the flask. After stirring was started, 1.1 g of a 5 wt % solution of ammonium persulfate (APS) initiator in water was slowly added. At the same time, the remaining monomer mixture was continuously added dropwise within 1.5 h. After continuing to react for 4 h, the reaction was terminated. The emulsion was freeze-dried, and then washed with acetone to remove emulsifiers, surfactants and unreacted monomers, ...

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Abstract

The invention provides conductive paste and a semiconductor device prepared by the conductive paste. The conductive paste comprises an organic carrier containing one or more microgel polymers, conductive powder and glass powder, wherein the microgel polymers are vinyl pyrrolidone microgel or acrylamide microgel; polyvinyl pyrrolidone and polyacrylamide polymers have excellent plasticity, film-forming property and binding property; and the printability of the conductive paste and the photoelectric conversion efficiency of a final conductive device can be improved. The conductive paste can be used for preparing the semiconductor device. A preparation method of the semiconductor device comprises the steps of providing a semiconductor substrate, applying the conductive paste to the substrate,and performing heating to allow the conductive paste to form a stable conductive structure as a semiconductor electrode. A figure of the conductive structure formed by the conductive paste can meet characteristics of clean grid line edge, tidy line shape, narrow and thin grid and large height-to-width ratio; and the efficiency of the semiconductor device can be effectively improved.

Description

technical field [0001] The invention relates to a conductive paste which can be heated to form a stable conductive structure and can be used in the production of semiconductor devices and other electrical devices. Background technique [0002] In order to save non-renewable resources, the development of wind energy and solar energy is an important issue for human survival and development, especially solar energy, which is less affected by environmental factors, has more and more applications, and constantly innovates in technology. Solar cells absorb sunlight and form electron-hole pairs on the p-n junction of semiconductors. Under the action of the built-in electric field, holes move to the p region, electrons move to the n region, and flow through the positive and negative electrodes respectively. A connected circuit produces a current. In order to allow solar cells to receive as much sunlight as possible, increase the light receiving area, and improve efficiency as much ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01B1/22H01L31/0224
CPCH01B1/22H01L31/022425Y02E10/50
Inventor 谭恺王海林史伟陈云
Owner CHANGZHOU BAOBANG NEW ENERGY MATERIAL
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