Modeling method for morphological characteristics of a terahertz device mounting material forming interface

Abstract

The invention discloses a modeling method for morphological characteristics of a terahertz device mounting material forming interface, which comprises the following steps of: firstly, acquiring a mounting material forming interface sample test piece with the same particle size by adopting a Monte Carlo sampling method, and respectively acquiring morphological height field sample data in different dimension directions according to the test piece sample; performing feature extraction and recognition on measured point cloud data of the molding surface topography of the mounting material, selecting different-dimension correlation function model types according to a fitting correlation function curve, constructing correlation function models of height field point cloud data of the molding surface topography of the mounting material in different dimension directions, and forming correlation coefficient matrixes of different dimensions, using a matrix array product algorithm to realize a global correlation coefficient matrix; extracting various error components, and establishing a multi-scale surface height information and multi-scale surface topography information transmission model; and based on the fractal theory, establishing a model of the influence relationship between the mounting material granularity forming interface and the transmission performance of the interconnected signals after the assembly of the terahertz key device.

Description

technical field [0001] The invention relates to a modeling method for the morphology characteristics of the forming interface of a mounting material for a terahertz device. Background technique [0002] Terahertz (THZ) waves refer to electromagnetic waves between 0.1-10THz, which occupy a special position in the electromagnetic spectrum. They not only have some characteristics related to macroelectronics and microphotonics, but also exhibit low photon energy, Unique properties such as spectral multifunctionality and selective high transmittance. Terahertz waves have significant characteristic absorption for many materials, and the characteristic energy levels of a large part of biological tissues and organic macromolecules are in the terahertz wave frequency band, and no matter how small the difference in material structure and type will change the terahertz spectrum, making The terahertz spectrum of matter can distinguish the difference between very fine material structure...

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