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Thyristor and its manufacturing method

A technology of thyristors and chips, which is applied in the field of thyristors and manufacturing thyristors, can solve problems such as damage to thyristors, difficulty in achieving electrode insulation, and failure of thyristors to achieve their functions.

Active Publication Date: 2021-05-11
ZHUZHOU CRRC TIMES SEMICON CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] However, for thyristors (especially high-power thyristors), the existing structure has been difficult to meet its expected performance level
In particular, the chip structure in the existing thyristor is difficult to achieve insulation between electrodes when the power of the thyristor is large
This will not only make the thyristor unable to achieve the expected function, but also cause damage to the thyristor

Method used

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  • Thyristor and its manufacturing method
  • Thyristor and its manufacturing method
  • Thyristor and its manufacturing method

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Embodiment Construction

[0025] The present invention will be further described below in conjunction with accompanying drawing.

[0026] The following will refer to Figure 1 to Figure 9 The method for manufacturing the thyristor 100 according to the present invention and the structure of the manufactured thyristor 100 will be described in detail.

[0027] first step, such as figure 1 As shown, a chip blank 10 is prepared. The chip blank is plate-shaped and contains silicon, and chip blanks commonly used in the prior art can be used.

[0028] The second step, such as figure 2 As shown, a plate-shaped chip body 11 and a plurality of electrodes protruding outward relative to the working surface 11A of the chip body 11 are formed by the above-mentioned chip blank 10 . For example in figure 2 In the illustrated embodiment, the electrodes formed on chip body 11 include cathodes 125 , 123 and 121 , gate leg 124 , and central gate 122 . The cathode, the gate leg and the central gate are well known t...

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Abstract

The present invention relates to a thyristor and a method of manufacturing the same. The thyristor includes a chip, the chip includes a plate-shaped chip body, the chip body is configured with a working surface, and the chip further includes a first electrode protrusion and a second electrode protrusion protruding outward from the working surface , the first electrode protrusions and the second electrode protrusions are spaced apart from each other, and an interval space is formed between the first electrode protrusions and the second electrode protrusions. Insulation between electrodes can be effectively ensured by such a thyristor.

Description

technical field [0001] The invention relates to the technical field of electronic devices, in particular to a thyristor. The invention also relates to a method for manufacturing a thyristor. Background technique [0002] Thyristor is the abbreviation of thyristor, which has three electrodes, namely cathode, anode and gate. Thyristors can work under high voltage and high current conditions, and their working process is controllable, so they are widely used in electronic circuits such as controllable rectification, AC voltage regulation, non-contact electronic switches, inverters and frequency conversion. [0003] However, for thyristors (especially high-power thyristors), the existing structures have been difficult to meet their expected performance level. In particular, the chip structure in the existing thyristor is difficult to achieve insulation between electrodes when the power of the thyristor is high. This will not only make the thyristor unable to achieve the expec...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01L29/739H01L21/331
CPCH01L29/66325H01L29/7393
Inventor 高军姚震洋操国宏唐革朱为为刘芹王东东
Owner ZHUZHOU CRRC TIMES SEMICON CO LTD