Mechanically-controllable cracking device with high attenuation coefficient

Abstract

The invention provides a mechanically-controllable cracking device with a high attenuation coefficient and relates to a mechanically-controllable cracking device. The mechanically-controllable cracking device is provided with a skeleton base, a stepping motor, a micro chip and a probe device; the skeleton base is a stainless steel cylindrical base; an opening is formed in the stepping motor, and the micro chip, the probe device and the stepping motor are assembled and fixed on the opening for single molecular test; the stepping motor is connected with the skeleton base; the micro chip is provided with a polyimide layer and a gold electrode; a micro electrode in the micro chip is led out by the probe device to form a planar external electrode, the probe device is provided with a supporting structure and a contact structure, the supporting structure can adopt a bridge type structure made of an aluminum alloy material, and a hole with a diameter of 1 cm is drilled in the center of the supporting structure for the erection of the micro chip; the contact structure takes the hole in the middle of the supporting structure as a dividing line, and polyester-coated flexible copper-clad laminates, polyfluortetraethylene plates, epoxy fiberglass cloth substrates and silver needles are symmetrically assembled on the two sides.

Description

technical field [0001] The invention relates to a mechanically controllable splitting device, in particular to a mechanically controllable splitting device with a high attenuation coefficient. Background technique [0002] In 1985, Moreland and Ekin were studying the tunneling effect of superconducting materials ([1] Zheng, J.-T.; Yan, R.-W.; Tian, ​​J.-H.; Liu, J.-Y. ; Pei, L.-Q.; Wu, D.-Y.; Dai, K.; Yang, Y.; Jin, S.; ), the mechanically controllable break junction method (Mechanically Controllable Break Junction, MCBJ) was proposed for the first time. After the development and improvement of Professor van Ruitenbeek of Leiden University in the Netherlands in the 1990s, the mechanically controllable split junction method has become one of the most mainstream methods for constructing nanometer intervals, metal atom point contact structures, and single-molecule junctions. [0003] The key to the success of the experiment using MCBJ is to make a microchip with a high attenu...

AI Technical Summary

Problems solved by technology

[0007] The invention provides a mechanically controllable cracking device with a high attenuation coefficient for the problem that it is difficult for the experimental device to have a high attenuation coefficient and a long service life at the same time when the mechanically controllable splitting method is used for experiments.

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