Fuse circuit
A fusing and circuit technology, which is applied in the electronic field, can solve the problems of unsatisfactory fusing effect, affecting chip performance, and complex structure, etc., and achieves the effects of precise fusing and fast fusing, high fusing controllability, and improving yield rate
Active Publication Date: 2016-10-26
上海赞芯电子科技有限公司
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Problems solved by technology
[0003] However, the existing electronic fusing (e-fuse) circuit has a relatively complex structure and a single technology, and the fusing effect is not ideal, and the fusing effect cannot be accurately controlled; when the fusing is not needed, the power consumption of the circuit is large, which affects the operation of the entire chip. performance
In the fusing process, the fusing current is prone to crosstalk, causing the chip fusing function to be abnormal.
Method used
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[0029] The specific implementation manners of the present invention will be further described below in conjunction with the drawings and examples. The following examples are only used to illustrate the technical solution of the present invention more clearly, but not to limit the protection scope of the present invention.
[0030] like figure 1 and figure 2 As shown, the present invention is a fuse circuit for trimming integrated circuits (not shown in the figure), including:
[0031] The fuse module 1 is installed on the integrated circuit and is used to fuse the fuse circuit by adjusting the current;
[0032] The control module 2 is configured to receive and identify trimming data, and output trimming current to the fuse module 1 according to the trimming data;
[0033] The execution module 3 is connected to the control module 2 and the fuse module 1 respectively, and is used to close or disconnect the connection between the fuse module 1 and the integrated circuit;
[...
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The invention discloses a fuse circuit. The fuse circuit includes a fuse module, a control module, an execution module and a trimming monitoring module; the fuse module is installed on an integrated circuit and is used for making the fuse circuit fused through trimming current; the control module is used for receiving and identifying trimming data and outputting the trimming current to the fuse module according to the trimming data; the execution module is connected with the control module and the fuse module and is used for realizing or cutting off the connection of the fuse module and the integrated circuit; and the trimming monitoring module is used for monitoring the fusing state of the fuse module and carrying out pre-trimming according to the fuse module. The fuse circuit of the invention has the advantages of simplicity in result realization, higher flexibility, higher reliability and higher fusing controllability. With the fuse circuit adopted, the realization of accurate fusing and fast fusing can be benefitted; a pre-trimming mode is adopted, so that a worker can obtain optimal trimming results, and therefore, the yield of products can be greatly improved; and interference on the fuse circuit caused random signals can be avoided, and power consumption can be reduced.
Description
technical field [0001] The invention relates to the field of electronics, in particular to a fuse circuit. Background technique [0002] As the requirements for high-performance indicators of integrated circuits are getting higher and higher, integrated circuits are facing more and more high-precision requirements. Trimming technology is a necessary means to realize high-precision integrated circuits; among them, electronic fuse circuit is one of the existing trimming technologies. , a common adjustment method; [0003] However, the existing electronic fusing (e-fuse) circuit has a relatively complex structure and a single technology, and the fusing effect is not ideal, and the fusing effect cannot be accurately controlled; when the fusing is not needed, the power consumption of the circuit is large, which affects the operation of the entire chip. performance. During the fusing process, the fusing current is prone to crosstalk, causing the chip fusing function to be abnorm...
Claims
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IPC IPC(8): H01L23/62
CPCH01L23/62
Inventor 周正伟
Owner 上海赞芯电子科技有限公司