A jig for making graphene suspension film into capacitor

Abstract

A clamp for making a graphene suspension film into a capacitor, the present invention relates to a clamp for making a graphene suspension film into a capacitor, in order to solve the problem that the distance between the two pole plates of the existing capacitor cannot be as small as possible, which will affect the capacitance of the made capacitor. The size of the capacitance; the contact resistance of the graphene suspension film and the lead wire will affect the output of the charge when the capacitance changes; the thickness of the lead wire will increase the distance between the two pole plates of the capacitor, and the problem that the two pole plates cannot be guaranteed to be parallel, the upper end cap and the lower end cap Fixed installation, the negative plate is installed in the lower end cover, the silicon wafer attached with the graphene suspension film is installed in the first groove of the lower end cover, and the graphene suspension film side faces the bottom surface of the first groove, and the sheet is installed in the graphite Between the graphene suspension film and the bottom surface of the first groove, the positive lead wire is connected to the graphene suspension film, and a flexible material is installed between the silicon wafer and the upper end cap. This fixture is used when the graphene suspension film is made into a capacitor positive plate Fixing it belongs to the field of fixtures.

Description

technical field [0001] The invention relates to a clamp for making a graphene suspension film into a capacitor, and belongs to the field of clamps. Background technique [0002] As the properties of graphene are explored by the majority of scientific researchers, graphene has more and more uses. Among them, the use of graphene films with excellent mechanical and electrical properties to make capacitive pickups has become one of the research hotspots. [0003] At present, the preparation of graphene suspension film requires a carrier. Generally speaking, the carrier is a silicon wafer. After drilling holes on the silicon wafer, a graphene film is prepared in the perforated part to form a suspension film. If you want to use such a graphene suspension film To make a capacitive pickup, it is necessary to make a silicon wafer with a graphene suspension film into a capacitor positive plate, especially to design a positive lead wire of the positive plate. As well as making a capac...

AI Technical Summary

Problems solved by technology

[0004] 1. The radius of the graphene suspension film is very small, resulting in a small area of ​​the positive plate of the capacitor, and the resulting capacitance value is small. In order to increase the capacitance, the diameter of the graphene suspension film can be increased at present, or the distance between the two plates of the capacitor can be reduced. distance, but the diameter of the graphene suspended film cannot be increased without limit, so the existing literature is to reduce the distance between the two plates of the capacitor to the minimum, which is 8 microns, no matter how small the distance between the two plates of the capacitor is It is easy to cause a short circuit between the two plates due to the vibration of the suspended film. Since the 8 micron is relatively small, in order to prevent the two plates of the capacitor from being broken down by the electric field, the DC bias voltage that can be tolerated between the two plates will be relatively small, which directly affects the output. The amount of charge and the capacitance of the capacitor made

[0005] 2. The graphene suspension film is the positive electrode of the capacitor. The contact resistance between the suspension film and the positive lead wire is very large, which affects the output of the charge generated when the capacitance changes.

[0006] 3. Connect the positive lead-out wire in the traditional way. The positive lead-out wire generally has a certain thickness, which will cause the distance between the two plates of the capacitor to be too large, and the parallelism between the two plates cannot be guaranteed.

[0010] 3. If the positive lead wire is connected in the traditional way, the distance between the two plates of the capacitor will be too large because the positive lead lead has a certain thickness, and the parallelism between the two plates cannot be guaranteed.

Images