CN107196641A - A kind of fuse circuit - Google Patents
A kind of fuse circuit Download PDFInfo
- Publication number
- CN107196641A CN107196641A CN201710395041.9A CN201710395041A CN107196641A CN 107196641 A CN107196641 A CN 107196641A CN 201710395041 A CN201710395041 A CN 201710395041A CN 107196641 A CN107196641 A CN 107196641A
- Authority
- CN
- China
- Prior art keywords
- module
- fuse
- output
- circuit
- fuse circuit
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K19/00—Logic circuits, i.e. having at least two inputs acting on one output; Inverting circuits
- H03K19/0175—Coupling arrangements; Interface arrangements
- H03K19/017509—Interface arrangements
Abstract
The invention provides a kind of fuse circuit, belong to semiconductor integrated circuit technical field.The fuse circuit includes：Electrification reset module, pulses generation module, switch module, resistive module, fuse and latch module；The output of electrification reset module as pulses generation module input；The output of pulses generation module as switch module control end；One termination power of switch module, another terminating resistor module；Another termination fuse and latch module of resistive module；The other end ground connection of fuse；The output of latch module as fuse circuit output.The fuse circuit of the present invention only has electric current to be flowed out from power supply within the burst length, realizes zero quiescent current of circuit.
Description
Technical field
The invention belongs to semiconductor integrated circuit technical field, and in particular to a kind of fuse circuit.
Background technology
The quantity for forming device on a semiconductor chip in a is constantly increasing, and this makes it difficult to whole devices being made to
There is no any defect.In consideration of it, proposing a kind of semiconductor chip that defective device is replaced with to standby device, this is standby
Device forms to remedy defective chip on the same chip.The circuit for carrying out this replacement uses the shape of such as fuse
State storage device, and whether select using existing apparatus according to the cut-out of described device or use stand-by provision.This
Outside, this circuit uses fuse circuit, the fuse circuit determine fuse cut-out whether.
Traditional fuse circuit, as shown in figure 1, including current source module 11, fuse 12.Described one end of current source module 11
Power vd D is met, another termination fuse 12, the other end of fuse is grounded, drawn on the connecting line of current source module 11 and fuse 12
One output end OUT.The fuse circuit is to flow through fuse with electric current all the way, and when fuse is not blown, output is connected to the ground, output
Low potential；After fuse is blown, current source module persistently can charge to output node, so final output is high electricity
Position.
The shortcoming of this traditional fuse circuit is exactly than larger quiescent dissipation.And in large scale integrated circuit,
Many fuses are needed, this can make it that the quiescent dissipation of circuit is very big, so traditional fuse circuit is not just connect by everybody
By.
The content of the invention
To solve the technical problem that existing fuse circuit quiescent dissipation is big, the invention provides a kind of the molten of zero quiescent dissipation
Silk circuit.
A kind of fuse circuit, including：Electrification reset module, pulses generation module, switch module, resistive module, fuse and
Latch module；The output of electrification reset module as pulses generation module input；The output of pulses generation module is as opening
Close the control end of module；One termination power of switch module, another terminating resistor module；Another termination fuse of resistive module and
Latch module；The other end ground connection of fuse；The output of latch module as fuse circuit output.
The operation principle of the fuse circuit is as follows：After power supply is powered, a reset signal is produced by electrification reset module,
This reset signal can produce a pulse signal after pulses generation module, and this pulse signal is controlled to switch module
System, can cause switch module to be turned within the burst length, this can cause have electric current to flow to fuse from power supply within the burst length, electricity
Resistance module plays a part of current limliting in circuit.When fuse is not blown, even if there is electric current to flow to fuse, latch from power supply
Input remain as zero, fuse circuit output low potential.After fuse is blown, by the lasting charging in the burst length, lock
The input of storage has been charged to high potential, so fuse circuit exports high potential.
The fuse circuit of the present invention, compared with conventional fuse circuit, only has electric current to be flowed out from power supply within the burst length, real
Zero quiescent current of circuit is showed.
Brief description of the drawings
Fig. 1 is traditional fuse circuit structural representation；
Fig. 2 is the fuse circuit structural representation that embodiment of the present invention is provided.
Embodiment
To make the object, technical solutions and advantages of the present invention of greater clarity, with reference to embodiment and join
According to accompanying drawing, the present invention is described in more detail.It should be understood that these descriptions are merely illustrative, and it is not intended to limit this hair
Bright scope.In addition, in the following description, the description to known features and technology is eliminated, to avoid unnecessarily obscuring this
The concept of invention.
In order to reduce the quiescent dissipation of fuse circuit, the invention provides a kind of fuse circuit.As shown in Fig. 2 the fuse
Circuit includes electrification reset module 21, pulses generation module 22, switch module 23, resistive module 24, fuse 26 and latch mould
Block 25；The output of electrification reset module 21 as pulses generation module 22 input；The output of pulses generation module 22 is as opening
Close the control end of module 23；One termination power vd D of switch module 23, another terminating resistor module 24；Resistive module 24 it is another
One termination fuse 26 and latch module 25；The other end ground connection of fuse 26；The output of latch module 25 is used as fuse circuit
Output OUT.
The operation principle of the fuse circuit is as follows：After power supply is powered, a reset signal is produced by electrification reset module,
This reset signal can produce a pulse signal after pulses generation module, and this pulse signal is controlled to switch module
System, can cause switch module to be turned within the burst length, this can cause have electric current to flow to fuse from power supply within the burst length, electricity
Resistance module plays a part of current limliting in circuit.When fuse is not blown, even if there is electric current to flow to fuse, latch from power supply
Input remain as zero, fuse circuit output low potential.After fuse is blown, by the lasting charging in the burst length, lock
The input of storage has been charged to high potential, so fuse circuit exports high potential.
The fuse circuit of the present invention, compared with conventional fuse circuit, only has electric current to be flowed out from power supply within the burst length, real
Zero quiescent current of circuit is showed.
It should be appreciated that the above-mentioned embodiment of the present invention is used only for exemplary illustration or explains the present invention's
Principle, without being construed as limiting the invention.Therefore, that is done without departing from the spirit and scope of the present invention is any
Modification, equivalent substitution, improvement etc., should be included in the scope of the protection.In addition, appended claims purport of the present invention
Covering the whole changes fallen into scope and border or this scope and the equivalents on border and repairing
Change example.
Claims (1)
1. a kind of fuse circuit, it is characterised in that including：Electrification reset module, pulses generation module, switch module, resistive mode
Block, fuse and latch module；The output of electrification reset module as pulses generation module input；Pulses generation module it is defeated
Go out the control end as switch module；One termination power of switch module, another terminating resistor module；The other end of resistive module
Connect fuse and latch module；The other end ground connection of fuse；The output of latch module as fuse circuit output.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710395041.9A CN107196641A (en) | 2017-05-30 | 2017-05-30 | A kind of fuse circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710395041.9A CN107196641A (en) | 2017-05-30 | 2017-05-30 | A kind of fuse circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107196641A true CN107196641A (en) | 2017-09-22 |
Family
ID=59875090
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710395041.9A Pending CN107196641A (en) | 2017-05-30 | 2017-05-30 | A kind of fuse circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107196641A (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101399085A (en) * | 2007-09-26 | 2009-04-01 | 中芯国际集成电路制造(上海)有限公司 | Fuse-wire reconditioning circuit |
| CN106209069A (en) * | 2016-06-30 | 2016-12-07 | 西安交通大学 | A kind of integrated fuse of super low-power consumption numerical model analysis trims circuit and fuse method for repairing and regulating |
-
2017
- 2017-05-30 CN CN201710395041.9A patent/CN107196641A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101399085A (en) * | 2007-09-26 | 2009-04-01 | 中芯国际集成电路制造(上海)有限公司 | Fuse-wire reconditioning circuit |
| CN106209069A (en) * | 2016-06-30 | 2016-12-07 | 西安交通大学 | A kind of integrated fuse of super low-power consumption numerical model analysis trims circuit and fuse method for repairing and regulating |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20170922 |
|
| RJ01 | Rejection of invention patent application after publication |