Method for improving total dosage effect of anti-ionizing radiation of device

A total dose effect and anti-ionization technology, which is applied in the direction of electric solid-state devices, semiconductor devices, semiconductor/solid-state device components, etc., to achieve the effect of improving the total dose effect of anti-ionizing radiation, small packaging quality, and good shielding effect
CN103996673AInactive Publication Date: 2014-08-20XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN ¡ China
Patent Type
Applications(China)
Current Assignee / Owner
XINJIANG TECHN INST OF PHYSICS & CHEM CHINESE ACAD OF SCI
Publication Date
2014-08-20
Estimated Expiration
Not applicable ¡ inactive patent

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Abstract

The invention relates to a method for improving the total dosage effect of anti-ionizing radiation of a device. The method comprises the first step of manufacturing a single-layer structure composite material, the second step of manufacturing a multi-layer structure composite material, the third step of measuring transmission coefficients of an electron beam in the composite materials, the fourth step of simulating and calculating theoretical transmission coefficients of the materials based on the Monte Carlo particle transporting method, the fifth step of correcting the electronic transmission coefficients, and the sixth step of carrying out secondary packing on corresponding chips of the device through the composite materials with the best shielding effect. By means of the method, the shielding effect is best, the packing weight is minimal, and the total dosage effect of anti-ionizing radiation of the spacecraft device can be improved.
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Description

technical field

[0001] The invention belongs to the application of electronic technology and nuclear technology in the field of aerospace electronics, and specifically relates to a method for improving the ability of devices to resist the total dose effect of ionizing radiation by using local shielding design. Background technique

[0002] The space radiation environment mainly includes cosmic rays, Van Allen Belt (Van Allen Belt), solar flares, solar electromagnetic radiation and auroral radiation. Different orbits have different radiation environments. The greatest threat to spacecraft orbiting the earth is the inner and outer Van Allen radiation belts located above the equator. They are mainly composed of high-energy protons (10-100 MeV) and high-energy electrons (0.4-7 MeV). Respectively reach 1Gy(Si) / h and tens of Gy(Si) / h. For LEO (Low Earth Orbit), the radiation dose includes electrons and protons in the capture zone, while for geosynchronous orbit, the dose is main...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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