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Efuse array

An array and array programming technology, applied in the field of efuse array, can solve the problem that efuse array occupies a large chip area and achieve the effect of reducing the chip area

Inactive Publication Date: 2019-11-01
SHANGHAI HUALI MICROELECTRONICS CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] In view of the above-mentioned shortcomings of the prior art, the purpose of the present invention is to provide an efuse array, which is used to solve the problem that the efuse array occupies a large chip area in the prior art

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Embodiment Construction

[0021] Embodiments of the present invention are described below through specific examples, and those skilled in the art can easily understand other advantages and effects of the present invention from the content disclosed in this specification. The present invention can also be implemented or applied through other different specific implementation modes, and various modifications or changes can be made to the details in this specification based on different viewpoints and applications without departing from the spirit of the present invention.

[0022] see Figure 1 to Figure 5 . It should be noted that the diagrams provided in this embodiment are only schematically illustrating the basic idea of ​​the present invention, and only the components related to the present invention are shown in the diagrams rather than the number, shape and shape of the components in actual implementation. Dimensional drawing, the type, quantity and proportion of each component can be changed arb...

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Abstract

The invention provides an efuse array. The efuse array comprises an N * N matrix formed by efuse units. Each efuse unit is composed of an efuse fuse and a control tube. One ends of the N * N efuse fuses are connected with one another to form a Fsource end of the efuse array.The other end of the efuse in each efuse unit is connected with the drain electrode of the control tube in the efuse unit. The grid electrodes of the control tubes in the same row in the N * N matrix are connected with a WL signal. The source electrodes of the control tubes in the same column are connected with an SA moduleand a programming tube. By adopting the OTP module with the efuse unit array structure, the area of a chip can be reduced.

Description

technical field [0001] The invention relates to the field of chip design, in particular to an efuse array. Background technique [0002] Efuse is a one-time programmable memory (OTP), which is based on the principle of electromigration (EM), and realizes the programming function on the chip by blowing the fuse. As the requirements for chip indicators are getting higher and higher. As efuse is a dedicated module for parameter setting inside the chip, the overall area becomes one of the important indicators of efuse module. In the internal functional modules of efuse, the efuse cell array occupies more than half of the entire area, especially in large-capacity efuse, so controlling the area of ​​efuse cells and efuse array is the key way to reduce the area of ​​the entire efuse module. [0003] Therefore, a new eFuse array needs to be proposed to solve the above problems. Contents of the invention [0004] In view of the above-mentioned shortcomings of the prior art, the ...

Claims

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Application Information

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IPC IPC(8): G11C17/16G11C17/18
CPCG11C17/16G11C17/18
Inventor 晏颖金建明
Owner SHANGHAI HUALI MICROELECTRONICS CORP