Solar cell multifunctional contact resistance automatic measuring instrument and measuring system thereof

A technology for solar cells and contact resistance, which is used in the measurement of electrical variables, measurement devices, and resistance/reactance/impedance measurement. , the effect of simple structure
CN103197147AActive Publication Date: 2013-07-10广东顺德宙思信息科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
广东顺德宙思信息科技有限公司
Publication Date
2013-07-10

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Abstract

The invention discloses a solar cell multifunctional contact resistance automatic measuring instrument which comprises a box body. A test probe, a camera and a sample stage which is used for placing solar cell samples to be measured are arranged inside the box body. The sample stage is located on the lower portion of the box body. Both the test probe and the camera are located above the sample stage. The camera is arranged on the periphery of the test probe to monitor a probe of the test probe. The sample stage and the test probe can be moved relatively to enable the probe of the test probe to aim at and contact grid lines of the solar cell samples to be measured. According to the solar cell multifunctional contact resistance automatic measuring instrument, the camera is used for monitoring the probe of the test probe, and the sample stage and the test probe can be moved relatively, and the probe is capable of being located quickly and accurately, and quickly and accurately measuring metal grid line contact resistances of solar cells and square resistances of silicon slices. The invention further relates to a measuring system which is formed by the solar cell multifunctional contact resistance automatic measuring instrument. The solar cell multifunctional contact resistance automatic measuring instrument and the measuring system are simple in structure, stable in operation, easy to achieve, convenient to use, high in test efficiency and suitable for application in the production line of measurement of solar cell contact resistances.
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Description

technical field

[0001] The present invention relates to the testing field of crystalline silicon solar cells, in particular to a solar cell multifunctional automatic contact resistance measuring instrument, and also relates to a measuring system composed of the measuring instrument, which can automatically measure solar cell surface grid wire contact resistance, square resistance and surface resistance. Scan and measure the sheet resistance and resistivity of the silicon wafer surface. Background technique

[0002] The quality of the metal ohmic contact on the surface of crystalline silicon solar cells is reflected by the contact resistance. Contact resistance is an important aspect to consider in solar cell electrode optimization. The size of the contact resistance is not only related to the contact pattern, but also related to the diffusion process and contact formation process. The ohmic contact quality of different grid line patterns can be reflected by the size of the...

Claims

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