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Method for preparing polymer film capacitor

A polymer film and capacitor technology, applied in the direction of thin film/thick film capacitors, laminated capacitors, etc., can solve the problems of high cost, complex preparation process of polymer film capacitors, high equipment requirements, etc., and achieve low cost, accurate injection position and reliable The effect of simple control and preparation process

Inactive Publication Date: 2016-10-12
NANJING UNIV OF SCI & TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In view of the above-mentioned preparation method of existing polymer film capacitors having the disadvantages of complex preparation process, high equipment requirements and high cost, the purpose of the present invention is to provide a polymer film capacitor with simple structure, low cost and high precision Preparation

Method used

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  • Method for preparing polymer film capacitor
  • Method for preparing polymer film capacitor

Examples

Experimental program
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Effect test

Embodiment 1

[0029] The preparation of polymer film capacitors, the specific steps are as follows:

[0030] Step 1 Cleaning treatment of the cover glass substrate 10: Put the PET film into a beaker, pour in an appropriate amount of concentrated sulfuric acid, heat it on a heating furnace for 10 minutes, then take it out and cool it for 10 minutes, and then rinse the surface of the PET film with deionized water residual concentrated sulfuric acid. Dry it with a cotton ball and put it into a beaker containing acetone, then put the beaker into an ultrasonic cleaner and vibrate for 10 minutes, take it out, rinse it with deionized water, and blow dry the surface moisture with nitrogen, as figure 2 as shown in a.

[0031] Step 2 Preparation of the internal biconical glass micronozzle 6: the internal biconical glass micronozzle a with an inner diameter of 50 μm is prepared by using the method for preparing the internal biconical glass micronozzle a, and the micronozzle a of the internal biconic...

Embodiment 2

[0041] The preparation of polymer film capacitors, the specific steps are as follows:

[0042] Steps 1 and 2 are identical to steps 1 and 2 described in Example 1

[0043] Step 3 Preparation of the nano-silver layer film 11: set the driving voltage amplitude of the piezoelectric actuator 3 to 60V, the driving frequency to 5Hz, set the motion parameters of the two-dimensional workbench 9 so that the droplet overlap rate is 60%, and drive Glass micro-nozzle a, uniformly and stably micro-spray nano-silver conductive ink onto the surface of the cleaned cover glass substrate on demand to form a nano-silver layer film 11 with straight edges, such as figure 2 as shown in b;

[0044] Step 4 Preparation of the conductive layer 12 at the bottom of the polymer film capacitor: place the cover glass substrate prepared with a nano-silver coating film in a constant temperature drying oven, set the sintering temperature to 140° C., and the sintering time to 25 minutes. After sintering and c...

Embodiment 3

[0052] The preparation of polymer film capacitors, the specific steps are as follows:

[0053] Steps 1 and 2 are identical to steps 1 and 2 described in Example 1

[0054] Step 3 Preparation of the nano-silver layer film 11: set the driving voltage amplitude of the piezoelectric actuator 3 to 40V, the driving frequency to 5Hz, set the motion parameters of the two-dimensional workbench 9 so that the droplet overlap rate is 70%, and drive Glass micro-nozzle a, uniformly and stably micro-spray nano-silver conductive ink onto the surface of the cleaned cover glass substrate on demand to form a nano-silver layer film 11 with straight edges, such as figure 2 as shown in b;

[0055] Step 4 Preparation of the conductive layer 12 at the bottom of the polymer film capacitor: place the cover glass substrate prepared with a nano-silver coating film in a constant temperature drying oven, set the sintering temperature to 140° C., and the sintering time to 25 minutes. After sintering and c...

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Abstract

The invention discloses a method for preparing a polymer film capacitor. The method comprises a step of using a micro-droplet spray method to prepare a polymer film capacitor bottom nano silver layer film and carrying out sintering solification on the film to form a bottom conductive layer, a step of preparing a middle insulating layer film and carrying out sintering solification on the film to form an intermediate dielectric layer, a step of preparing a top nano silver layer film and carrying out sintering solification on the film to form a top conductive layer, and a step of carrying out annealing processing to obtain the polymer film capacitor. The preparation process of the polymer film capacitor is simple, the cost is low, a specific template is not needed, the shape of the capacitor can be directly formed by injection, the geometrical size and electrical properties of the capacitor are highly controable, the performance is stable, and the consistency is high.

Description

technical field [0001] The invention relates to a method for preparing a capacitor, in particular to a method for preparing a polymer film capacitor. Background technique [0002] Printed electronics technology uses printing technology to quickly print functional inks on various substrates to form electronic components and electronic circuits, which can effectively solve the problems existing in existing electronic products manufactured by silicon technology. Many problems such as complex process, long production cycle, large waste of materials, and serious environmental pollution have been widely used in various fields such as production management, scientific research, traffic management, and logistics supply chain. Film capacitors are key electronic components in printed electronic circuits, and their performance has an important impact on the performance of printed electronic circuits. [0003] At present, the preparation methods of thin film capacitors mainly include e...

Claims

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Application Information

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IPC IPC(8): H01G4/33
CPCH01G4/33
Inventor 杨利军朱丽
Owner NANJING UNIV OF SCI & TECH
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