Parallelism adjusting method of welding head and sample applicable to ultrasonic nano welding

An adjustment method and technology of parallelism, applied in welding equipment, welding equipment, auxiliary welding equipment, etc., can solve the problems of difficult to ensure complete parallelism, insufficient contact between the welding head and the sample, and ineffective transmission of ultrasonic energy, so as to solve the problem of contact effect of the problem

Inactive Publication Date: 2009-10-21
SHANGHAI JIAO TONG UNIV +1
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  • Application Information

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Problems solved by technology

However, during the welding process, due to the special connection structure of the welding head, it is often difficult to ensure complete parallelism during installation; the sample stage may also be inclined to a certain extent under the impact of welding pressure, although this is often only a small inclination angle, it will still As a result, the welding head and the sample cannot be fully contacted, so that the ultrasonic energy cannot be effectively transmitted to the sample to be welded, which seriously affects the welding effect of nanomaterials

Method used

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  • Parallelism adjusting method of welding head and sample applicable to ultrasonic nano welding
  • Parallelism adjusting method of welding head and sample applicable to ultrasonic nano welding
  • Parallelism adjusting method of welding head and sample applicable to ultrasonic nano welding

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Embodiment 1

[0023] This embodiment is implemented under the following conditions of implementation and technical requirements:

[0024] The area of ​​the welding head is 1cm 2 The aluminum oxide superhard flat welding head, the material to be welded is single-walled carbon nanotubes. Use the method of dielectrophoretic deposition to arrange the single-walled carbon nanotubes between the titanium microelectrodes with a spacing of 1.5 microns; the elastic rubber pad 3 is made of silicone rubber material, and the silicone rubber is made of polydimethylsiloxane (PDMS) spin Coated on a 3-inch glass substrate, the spin-coating speed is 1500 rpm, and the thickness of the spin-coating on the glass is 50 microns. The sample 2 to be welded is placed on the rubber pad 3, and the rubber pad 3 is placed on the pitch table 4 that has been preliminarily leveled. After applying a static pressure of 0.4 MPa to the welding head, the sample 2 was welded with the welding parameters of ultrasonic welding fr...

Embodiment 2

[0027] This embodiment is implemented under the following conditions of implementation and technical requirements:

[0028] The area of ​​the welding head is 1cm 2 The aluminum oxide superhard flat welding head, the material to be welded is multi-walled carbon nanotubes. Electrophoretic deposition method is used to deposit multi-walled carbon nanotubes on the titanium metal electrode surface. The elastic rubber pad 3 adopts silicon rubber material. The preparation of the silicone rubber pad is to spin-coat polydimethylsiloxane (PDMS) on a 3-inch silicon lining. On the bottom, the rotation speed was 500 rpm during spin coating, and the thickness of spin coating on the glass was 500 μm. The sample 2 to be welded is placed on the rubber pad 3, and the rubber pad 3 is placed on the pitch table 4 that has been preliminarily leveled. After applying a static pressure of 0.2 MPa to the welding head, the sample 2 was welded with the welding parameters of ultrasonic welding frequency ...

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Abstract

The invention relates to a parallelism adjusting method of a welding head and a sample, which is applicable to ultrasonic nano welding and belongs to the field of nano technology. The method arranges an elastic rubber pad under the sample, utilizes the elastic deformation characteristic of the elastic rubber pad to realize automatic compensation of micro-inclination angle of the welding head and the sample, leads the welding head and the sample to be contacted completely and ensures the ultrasonic energy is effectively and uniformly applied to the whole welding area, thus improving the welding quality of the nano electronic device. Simultaneously, the method also has the function of utilizing the elastic rubber pad to protect the sample and avoids the sample from being deformed and damaged and the like caused by uneven force application. The parallelism adjusting method has important application in the field of ultrasonic nano welding, especially can lead the nano material to be welded evenly over a wide area and realize large-scale ultrasonic welding of nano material.

Description

technical field [0001] The invention relates to a process method in the field of nanotechnology, in particular to a method for adjusting the parallelism between a welding head and a sample in ultrasonic nano-welding. Background technique [0002] When preparing nanoelectronic devices, it is often difficult to form a reliable electrical contact between one-dimensional nanomaterials and metal electrodes. The high contact barrier and large contact power consumption make the outstanding performance of nanoelectronic devices not well reflected. And limit the practical application of nanoelectronic devices to a great extent. [0003] After searching the literature of the prior art, it was found that the Chinese patent "Method for Bonding Nanomaterials to Metal Electrodes" (application number: 200510028887.6, publication number CN1738018, authorized announcement number: CN100336192C) introduced a bond for nanoelectronic devices. The patent states that "the contact part between the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B23K37/00B23K20/10
Inventor 徐东张亚非赵波毛启明陈翔何丹农
Owner SHANGHAI JIAO TONG UNIV
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