CN109215724A - The method and device of memory automatic detection and rehabilitation - Google Patents
The method and device of memory automatic detection and rehabilitation Download PDFInfo
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- CN109215724A CN109215724A CN201710541188.4A CN201710541188A CN109215724A CN 109215724 A CN109215724 A CN 109215724A CN 201710541188 A CN201710541188 A CN 201710541188A CN 109215724 A CN109215724 A CN 109215724A
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11C—STATIC STORES
- G11C29/00—Checking stores for correct operation ; Subsequent repair; Testing stores during standby or offline operation
- G11C29/04—Detection or location of defective memory elements, e.g. cell constructio details, timing of test signals
- G11C29/08—Functional testing, e.g. testing during refresh, power-on self testing [POST] or distributed testing
- G11C29/12—Built-in arrangements for testing, e.g. built-in self testing [BIST] or interconnection details
- G11C29/44—Indication or identification of errors, e.g. for repair
Abstract
The embodiment of the invention provides a kind of method and devices of memory automatic detection and rehabilitation, this method comprises: record user is directed to the action type and operating frequency of the storage unit in the memory, and obtain the time interval that user arbitrarily operates twice；In the time interval, the storage unit of the memory is detected, generates testing result；According to the testing result, the memory is repaired.The embodiment of the invention provides a kind of method and devices of memory automatic detection and rehabilitation, memory can be detected and be repaired automatically, the service life of memory is extended during user uses memory.
Description
Technical field
The present embodiments relate to memory technology fields, especially design a kind of method of memory automatic detection and rehabilitation
And device.
Background technique
Chip in memory, can whether faulty to detect storage unit by batch testing before factory, works as detection
When to failure, the storage unit of failure can be repaired.
So, user is during using memory, when memory breaks down, how to repair be one urgently
Problem to be solved.
The trend of memory is that density is higher and higher at present, and internal cabling is more and more intensive, short between bit line or wordline
Connect, disconnecting phenomenon it is also more serious.Therefore memory needs largely to be tested before factory, these processes influence product face
To market cycle, and expend a large amount of human and material resources.In addition, memory repair result can be cured in memory before dispatching from the factory, every time
Restoration information can all be loaded automatically by powering on, and guarantee user's normal use.But user is in use, there is event in memory
When barrier, it can only be corrected at present by ECC, but ECC error correction ability is limited.
Summary of the invention
In view of this, the embodiment of the invention provides a kind of method and device of memory automatic detection and rehabilitation, it can
During user uses memory, memory is detected and repaired automatically, the service life of memory is extended.
In a first aspect, the embodiment of the invention provides a kind of methods of memory automatic detection and rehabilitation, this method comprises:
User is recorded for the action type and operating frequency of the storage unit in the memory, and it is any to obtain user
The time interval operated twice；
In the time interval, the storage unit of the memory is detected, generates testing result；
According to the testing result, the memory is repaired.
Optionally, the action type includes programming operation, erasing operation and read operation.
Optionally, when the record user is directed to the action type and operating frequency of the storage unit in the memory,
It further include tracking and recording user during using the memory, the data type that storage unit occurs in the memory
Mistake, the frequency that data type mistake occurs and the access unit address that data type mistake occurs；
According in the memory storage unit occur data type mistake, occur data type mistake frequency with
And the access unit address of data type mistake occurs, in the time interval, to generation data type mistake
The storage unit is detected.
Optionally, in the time interval, the storage unit of the memory is detected, generates testing result tool
Body includes:
In the time interval, operation is programmed to the storage unit of the memory；
After being programmed operation to the storage unit of the memory, the storage unit of the memory is read out
Operation, obtains practical reading result；
If the practical expected reading result for reading result and be programmed operation to the storage unit of the memory
It is not inconsistent, then judges that the storage unit breaks down, generates testing result, the testing result is the storage broken down
The address of unit.
Optionally, according to the testing result, after being repaired to the memory further include:
The storage unit to break down carries out again the storage unit to break down after repairing
This detection deletes the access unit address to break down in the testing result if repairing successfully.
Second aspect, the embodiment of the invention provides a kind of device of memory automatic detection and rehabilitation, which includes:
Logging modle, the logging modle are connected with detection module, for recording, tracking and record user in the memory
The action type and operating frequency of storage unit, and obtain the time interval that user arbitrarily operates twice；
The detection module is generated in the time interval, detecting to the storage unit of the memory
Testing result, the detection module are connected with the repair module；
Repair module, for being repaired to the memory according to the testing result.
Optionally, the action type includes programming operation, erasing operation and read operation.
Optionally, the logging modle is also used to record user during using the memory, in the memory
The frequency of data type mistake, generation data type mistake that storage unit occurs and the described of generation data type mistake are deposited
The address of storage unit；
The detection module is used for the data type mistake according to the storage unit generation in the memory, data occurs
The frequency of type error and the access unit address that data type mistake occurs, in the time interval, to hair
The storage unit of raw data type mistake is detected.
Optionally, the detection module further includes programming unit, is used in the time interval, to the memory
Storage unit is programmed operation；
The detection module further includes reading unit, and the reading unit is connected with the programming unit, for described
The storage unit of memory is programmed after operation, is read to the storage unit of the memory, is obtained reality
Read result；
The detection module further includes testing result generation unit, the testing result generation unit and the reading unit
It is connected, if for the practical expected reading result for reading result and be programmed operation to the storage unit of the memory
It is not inconsistent, then judges that the storage unit breaks down, generates testing result, the testing result is the storage broken down
The address of unit.
Optionally, the repair module is also used to, according to the testing result, after being repaired to the memory,
This is carried out again to the storage unit to break down to detect, if repairing successfully, deletes the testing result
In the access unit address to break down.
The embodiment of the invention provides a kind of method and devices of memory automatic detection and rehabilitation, by recording user's needle
To the action type and operating frequency of the storage unit in memory, and the time interval that user arbitrarily operates twice is obtained, benefit
The time interval not operated to memory with user detects the storage unit of memory, generates testing result, root
According to testing result, memory to be repaired, the time fragmentation that will test and repair improves the efficiency of test and reparation,
And it plays during the memory that user uses, to the mesh of the automatic care and maintenance of the storage unit of memory
, extend the service life of memory.
Detailed description of the invention
Fig. 1 is a kind of flow diagram of the method for memory automatic detection and rehabilitation that the embodiment of the present invention one provides；
Fig. 2 is a kind of flow diagram of the method for memory automatic detection and rehabilitation provided by Embodiment 2 of the present invention；
Fig. 3 is a kind of flow diagram of the method for memory automatic detection and rehabilitation that the embodiment of the present invention three provides；
Fig. 4 is a kind of apparatus structure schematic diagram for memory automatic detection and rehabilitation that the embodiment of the present invention four provides；
Fig. 5 is the apparatus structure schematic diagram for another memory automatic detection and rehabilitation that the embodiment of the present invention four provides.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
The specific embodiment stated is used only for explaining the present invention rather than limiting the invention.It also should be noted that in order to just
Only the parts related to the present invention are shown in description, attached drawing rather than entire infrastructure.
And the method and device of memory automatic detection and rehabilitation provided in an embodiment of the present invention is to be directed to make in user
During, by the method and device of memory automatic detection and rehabilitation, automatic detection and rehabilitation is carried out to memory.It is real
Apply example one
Fig. 1 is a kind of flow diagram of the method for memory automatic detection and rehabilitation that the embodiment of the present invention one provides.
This method can be executed by a kind of device of memory automatic detection and rehabilitation, wherein the device can be by hardware and/or software
It realizes, specifically comprises the following steps:
Step 110, record user are directed to the action type and operating frequency of the storage unit in memory, and obtain user
The time interval arbitrarily operated twice.
In the present embodiment, user can be referred to as the action type and operating frequency of the storage unit in memory
For user's habit, i.e., user habitually carries out a kind of operation to certain storage units, and optionally, action type includes programming behaviour
Work, erasing operation and read operation, and each type of operation and operating frequency may compare fixation, for such use
Family habit, in the present embodiment can be by the action type of the storage unit in memory and operating frequency and storage unit
Address is recorded, and is summarized by analysis, and the time interval that user arbitrarily operates twice is got.It should be noted that any
It operates twice, can be same type of operation, or the operation of different types, this point depend on the habit of user
It is used.The time interval that user arbitrarily operates twice is got, it can be in subsequent operating process, in this time interval
It is interior, carry out some detections and reparation.
Step 120, in the time interval, detects the storage unit of memory, generates testing result.
In the present embodiment, the storage unit of memory is detected, generates testing result.The purpose of detection is to arrange
Look into the failure of the storage unit in memory.The failure of storage unit illustratively may include hardware fault and software fault.
Hardware fault generally comprises following 4 kinds of situations: 1, due to decoder internal short-circuit or open circuit, leading to partial address or whole addresses
It cannot receive addressing.2, transistor nonfunctional in the input/output circuitry of memory.3, storage unit is damaged, and may manufactured
It is generated in journey, it is also possible to be generated in aging, show as some storage unit and be fixed on a certain state and cannot change.4, due to
Metallization is insufficient or is broken line by excessive stress.Software fault generally comprises following 8 kinds of situations: 1, storage unit
In value be fixed on logic 1 or be fixed on logical zero and can not change.2, when programming operation, storage unit cannot be changed into from 0
1 or 1 is changed into 0.3, access speed is slow.If 4, switch time is too long in row or column address decoding circuitry, a data
It may not be only written in a storage unit, but repeat to write into two or more storage units；In read operation, then
The content of a storage unit once may be not only read, but reads the content of two or more storage units.5, programming behaviour
Recovery time is too long after work, this is to read immediately after a program operation, and memory cannot provide correct signal.6, address
Decoding failure includes four kinds of situations, and be respectively: some address cannot access any storage unit；Some address can access simultaneously
Multiple storage units；Some storage unit can not be accessed by any address；Some storage unit can be accessed by multiple addresses.7,
Data change in one unit of memory causes data in another consecutive storage unit to change.Due to depositing in memory
Storage unit is very intensive, and there may be electromagnetism misfortunes to close to each other, therefore the content of some storage unit may be subjected to neighbouring deposit
The influence of read-write operation in storage unit.If 8, storage capacitance electric leakage is too fast, cause just to lose before the defined shortest time
Storage content.
Step 130, according to testing result, repairs memory.
In the present embodiment, according to testing result, memory is repaired.Due to the failure of the storage unit of memory
Including hardware fault and software fault.It correspondingly, illustratively include hardware reparation and software reparation to the reparation of memory.Firmly
Part, which is repaired, illustratively can replace fault memory cell for the storage unit of redundancy.When this method can save test reparation
It asks.When being operated to storage unit, if mistake occurs for the data type of storage unit, it is directed to this mistake, is shown
Algoritic module is utilized to example property, by error checking and the progress of (Error Correcting Code, ECC) module can be corrected
Error correction passes through algoritic module by error control within the fault-tolerant ability of ECC module, this is that software reparation can be taken
Scheme.
The embodiment of the invention provides a kind of methods of memory automatic detection and rehabilitation, by record user for storage
The action type and operating frequency of storage unit in device, and the time interval that user arbitrarily operates twice is obtained, utilize user
The time interval not operated to memory detects the storage unit of memory, testing result is generated, according to detection
As a result, being repaired to memory, compared to one period of centralized planning for memory is detected and is repaired, will test
With the time fragmentation of reparation, the efficiency of test and reparation is improved, and plays the automatic dimension of the storage unit of memory
The purpose of shield and maintenance, extends the service life of memory.
Embodiment two
Fig. 2 is a kind of flow diagram of the method for memory automatic detection and rehabilitation provided by Embodiment 2 of the present invention.
On the basis of the above embodiments, the embodiment of the invention provides a kind of method of automatic detection and rehabilitation, referring to
Fig. 2, this method comprises the following steps:
Step 210, record user are directed to the action type and operating frequency of the storage unit in memory, and obtain user
The time interval arbitrarily operated twice, when record user is directed to the action type and operating frequency of the storage unit in memory,
It further include record user during using memory, the data type mistake of storage unit generation, generation data in memory
The frequency of type error and the access unit address that data type mistake occurs.
Step 220, the data type mistake occurred according to the storage unit in memory, the frequency that data type mistake occurs
Rate and the access unit address that data type mistake occurs, in the time interval, the storage to data type mistake occurs
Unit is detected.
As described in above-described embodiment, ECC module generally will include in memory, ECC module has certain error correcting capability, that
Data type mistake occurs for data type mistake that storage unit in the memory within ECC error correction ability occurs
Frequency and the access unit address that data type mistake occurs are recorded.In order to avoid these storage units make subsequent
Occur hardware fault during, or software fault occur but be more than the error correction range of ECC module, and cannot by and
When detect, and timely repair,, can also be with for these storage units to influence use of the user to memory
Carry out subsequent detection and reparation.
Step 230, according to testing result, repairs memory.
The embodiment of the invention provides a kind of methods of memory automatic detection and rehabilitation, due to the process used in user
In, the action type of storage unit and operating frequency and address are recorded, and be directed to the mistake, in user any two
In the time interval of secondary operation, these storage units are detected and repaired.This detection and repair process, to ECC error correction
The storage unit of the data type mistake occurred within ability is detected and is repaired, on the one hand, detection and repair process are directed to
Property is stronger, while can occur hardware fault during subsequent use to avoid these storage units, or software occur
Failure is still more than the error correction range of ECC module, and cannot timely be detected, and timely repair.On the other hand, it examines
Survey and repair process be user without using memory time interval in, compared to one period of centralized planning to memory into
For row detection and reparation, the time fragmentation that will test and repair improves the efficiency of test and reparation, and plays and deposit
The purpose of the automatic care and maintenance of the storage unit of reservoir, extends the service life of memory.
Embodiment three
Fig. 3 is a kind of flow diagram of the method for memory automatic detection and rehabilitation that the embodiment of the present invention three provides.
On the basis of the above embodiments, the embodiment of the invention provides a kind of method of automatic detection and rehabilitation, referring to
Fig. 3, this method comprises the following steps:
Step 310, record user are directed to the action type and operating frequency of the storage unit in memory, and obtain user
The time interval arbitrarily operated twice.
Step 320, in the time interval, is programmed operation to the storage unit of memory；To the storage list of memory
Member is programmed after operation, is read to the storage unit of memory, and practical reading result is obtained；If practical read
As a result the expected result that reads for and to the storage unit of memory being programmed operation is not inconsistent, then judges that event occurs for storage unit
Barrier generates testing result, and testing result is the access unit address to break down.
In the present embodiment, this detection method can check hardware fault, can also check software fault.Example
Property, it can be inconsistent according to the practical expected reading result for reading result and being programmed operation to the storage unit of memory
Type, to judge hardware fault and software fault.
Step 330, according to testing result, repairs memory.
Step 340, the storage unit to break down carry out again this to the storage unit to break down and examine after repairing
It surveys, if repairing successfully, deletes the access unit address to break down in testing result.
If repaired successfully, the access unit address to break down before reparation is deleted, is conducive to improve storage
The utilization rate of storage unit in device reduces power consumption.
The embodiment of the invention provides a kind of methods of memory automatic detection and rehabilitation, by record user for storage
The action type and operating frequency of storage unit in device, and the time interval that user arbitrarily operates twice is obtained, utilize user
The time interval not operated to memory detects the storage unit of memory, testing result is generated, according to detection
As a result, being repaired to memory.Specific detection technique scheme are as follows: operation is programmed to the storage unit of memory；It is right
The storage unit of memory is programmed after operation, is read to the storage unit of memory, and practical reading is obtained
As a result；If the practical expected result that reads for reading result and being programmed operation to the storage unit of memory is not inconsistent, judge
Storage unit breaks down, and generates testing result, testing result is the access unit address to break down.It can be according to reality
It reads result and is programmed the expected type for reading result and not being inconsistent of operation to the storage unit of memory, to judge hardware event
Barrier and software fault, detection scheme is fast and simple, has striven for the time for subsequent reparation.
Example IV
Fig. 4 is a kind of apparatus structure schematic diagram for memory automatic detection and rehabilitation that the embodiment of the present invention four provides；Fig. 5
For the apparatus structure schematic diagram for another memory automatic detection and rehabilitation that the embodiment of the present invention four provides.
It is invented based on same design, the embodiment of the invention provides a kind of device of memory automatic detection and rehabilitation, ginsengs
See Fig. 4 and Fig. 5, which includes:
Logging modle 410, logging modle 410 are connected with detection module 420, for recording, tracking and record user for depositing
The action type and operating frequency of storage unit in reservoir, and obtain the time interval that user arbitrarily operates twice.
Detection module 420, in the time interval, being detected to the storage unit of memory, generation testing result,
Detection module 420 is connected with repair module 430.
Repair module 430, for according to testing result, being repaired to memory.
Optionally, action type includes programming operation, erasing operation and read operation.
Optionally, logging modle 410 is also used to record user during using memory, storage unit hair in memory
The access unit address of raw data type mistake, frequency and generation data type mistake that data type mistake occurs.
Data type mistake, generation data type mistake of the detection module 420 according to the storage unit generation in memory
Frequency and the access unit address of data type mistake occurs, in the time interval, to data type mistake occurs
Storage unit is detected.
Optionally, detection module 420 further includes programming unit 4201, is used for the storage to memory in the time interval
Unit is programmed operation.
Detection module 420 further includes reading unit 4202, and reading unit is connected with programming unit, for depositing to memory
Storage unit is programmed after operation, is read to the storage unit of memory, and practical reading result is obtained.
Detection module 420 further includes testing result generation unit 4203, and testing result generation unit is connected with reading unit,
If not being inconsistent for the practical expected result that reads for reading result and being programmed operation to the storage unit of memory, judgement is deposited
Storage unit breaks down, and generates testing result, testing result is the access unit address to break down.
Optionally, repair module 430 is also used to, according to testing result, after repairing to memory, to breaking down
Storage unit carry out again this detect, if repairs successfully, deletion testing result in the access unit address to break down.
The embodiment of the invention provides a kind of devices of memory automatic detection and rehabilitation, record user by logging modle
For the action type and operating frequency of the storage unit in memory, and the time interval that user arbitrarily operates twice is obtained,
The time interval not operated to memory using user is detected using storage unit of the detection module to memory,
It generates testing result according to testing result to repair memory using repair module, compares one period of centralized planning
For memory is detected and is repaired, the time fragmentation that will test and repair improves the efficiency of test and reparation, and
And the purpose of the automatic care and maintenance of the storage unit of memory is played, extend the service life of memory.
Note that the above is only a better embodiment of the present invention and the applied technical principle.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent variation,
It readjusts, be combined with each other and substitutes without departing from protection scope of the present invention.Therefore, although by above embodiments to this
Invention is described in further detail, but the present invention is not limited to the above embodiments only, is not departing from present inventive concept
In the case of, it can also include more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (10)
1. a kind of method of memory automatic detection and rehabilitation, which is characterized in that
User is recorded for the action type and operating frequency of the storage unit in the memory, and obtains user arbitrarily twice
The time interval of operation；
In the time interval, the storage unit of the memory is detected, generates testing result；
According to the testing result, the memory is repaired.
2. the method according to claim 1, wherein
The action type includes programming operation, erasing operation and read operation.
3. the method according to claim 1, wherein
It further include tracking simultaneously when the record user is directed to the action type and operating frequency of the storage unit in the memory
User is recorded during using the memory, the data type mistake of storage unit generation, generation number in the memory
According to the frequency of type error and the access unit address of generation data type mistake；
The frequency and hair of the data type mistake, generation data type mistake that are occurred according to the storage unit in the memory
The access unit address of raw data type mistake, in the time interval, to described in generation data type mistake
Storage unit is detected.
4. the method according to claim 1, wherein
In the time interval, the storage unit of the memory is detected, generates testing result and specifically includes:
In the time interval, operation is programmed to the storage unit of the memory；
After being programmed operation to the storage unit of the memory, behaviour is read out to the storage unit of the memory
Make, obtains practical reading result；
If the practical expected result that reads for reading result and being programmed operation to the storage unit of the memory is not inconsistent,
Then judge that the storage unit breaks down, generates testing result, the testing result is the storage unit to break down
Address.
5. according to the method described in claim 4, it is characterized in that,
According to the testing result, after being repaired to the memory further include:
The storage unit to break down carries out again this to the storage unit to break down and examines after repairing
It surveys, if repairing successfully, deletes the access unit address to break down in the testing result.
6. a kind of device of memory automatic detection and rehabilitation, which is characterized in that
Logging modle, the logging modle are connected with detection module, for recording, tracking and record user for the memory
In storage unit action type and operating frequency, and obtain the time interval that user arbitrarily operates twice；
The detection module generates detection in the time interval, detecting to the storage unit of the memory
As a result, the detection module is connected with the repair module；
Repair module, for being repaired to the memory according to the testing result.
7. device according to claim 6, which is characterized in that
The action type includes programming operation, erasing operation and read operation.
8. device according to claim 6, which is characterized in that
The logging modle is also used to record user during using the memory, and storage unit occurs in the memory
Data type mistake, occur data type mistake frequency and occur data type mistake the storage unit ground
Location；
The detection module is used for the data type mistake according to the storage unit generation in the memory, data type occurs
The frequency of mistake and the access unit address that data type mistake occurs, in the time interval, to generation number
It is detected according to the storage unit of type error.
9. device according to claim 6, which is characterized in that
The detection module further includes programming unit, in the time interval, to the storage unit of the memory into
Row programming operation；
The detection module further includes reading unit, and the reading unit is connected with the programming unit, for the storage
The storage unit of device is programmed after operation, is read to the storage unit of the memory, and practical reading is obtained
As a result；
The detection module further includes testing result generation unit, the testing result generation unit and the reading unit phase
Even, if being programmed the expected reading result of operation not for the practical reading result and to the storage unit of the memory
Symbol, then judge that the storage unit breaks down, and generates testing result, the testing result is the storage list to break down
The address of member.
10. device according to claim 9, which is characterized in that
The repair module is also used to, according to the testing result, after being repaired to the memory,
This is carried out again to the storage unit to break down to detect, if repairing successfully, is deleted in the testing result
The access unit address to break down.
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