Nuclear battery structure and preparation method thereof

A nuclear battery, one-sided technology, applied in the field of nuclear batteries, can solve the problems of low energy conversion efficiency of nuclear batteries, and achieve the effect of improving energy conversion efficiency and collection efficiency

Pending Publication Date: 2022-02-08
WUXI HOPE MICROELECTRONICS
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] The invention provides a nuclear battery structure and a preparation method of the nuclear batter

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  • Nuclear battery structure and preparation method thereof
  • Nuclear battery structure and preparation method thereof
  • Nuclear battery structure and preparation method thereof

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Embodiment Construction

[0032] It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and examples.

[0033] In order to enable those skilled in the art to better understand the solutions of the present invention, the following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only Embodiments of some, but not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts shall fall within the protection scope of the present invention.

[0034] It should be noted that the terms "f...

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Abstract

The invention relates to the technical field of nuclear batteries, and particularly discloses a nuclear battery structure which comprises a first nuclear battery chip, a second nuclear battery chip and a radioactive isotope source layer positioned between the first nuclear battery chip and the second nuclear battery chip. Each of the first nuclear battery chip and the second nuclear battery chip comprises a first conductive type substrate, and a first conductive type epitaxial layer, a second conductive type epitaxial layer with a first doping concentration, a second conductive type epitaxial layer with a second doping concentration, a second conductive type ohmic contact layer and a metal bonding layer which are sequentially arranged on the first conductive type substrate. The radioactive isotope source layer is in contact with the metal bonding layer of the first nuclear battery chip and the metal bonding layer of the second nuclear battery chip, and a first conduction type ohmic contact layer is arranged on one surface, deviating from the radioactive isotope source layer, of the first conduction type substrate. The invention also discloses a preparation method of the nuclear battery. The nuclear battery structure provided by the invention can improve the energy conversion efficiency.

Description

technical field [0001] The invention relates to the technical field of nuclear batteries, in particular to a nuclear battery structure and a preparation method for the nuclear battery. Background technique [0002] Radioisotope batteries, also known as nuclear batteries, are devices that use the energy released by the decay of radioisotopes to generate electrical energy. [0003] With the development of MEMS, the issue of energy supply is particularly important. As electronic products are miniaturized, miniaturized, and integrated, energy must also be miniaturized and miniaturized. Nuclear batteries have the advantages of small size, long life, light weight, not affected by external environmental functions, high specific power, and easy miniaturization, making them ideal energy sources for MEMS. Due to its excellent characteristics, it can be used in aerospace, deep sea, polar regions and other occasions that require long-term power supply and unattended. [0004] In rece...

Claims

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Application Information

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IPC IPC(8): G21H1/06
CPCG21H1/06
Inventor 郭凤丽张玲玲
Owner WUXI HOPE MICROELECTRONICS
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