CN100481439C

CN100481439C - Device and method for implementing multi-time programming using once programmable element

Info

Publication number: CN100481439C
Application number: CNB2004100869901A
Authority: CN
Inventors: 徐世斌
Original assignee: Novatek Microelectronics Corp
Current assignee: Novatek Microelectronics Corp
Priority date: 2004-10-27
Filing date: 2004-10-27
Publication date: 2009-04-22
Anticipated expiration: 2024-10-27
Also published as: CN1767188A

Abstract

The invention relates to an apparatus and method for using primary stylization unit to achieve multi-time stylization. The apparatus comprises: a choosing device, a first adjusting OTP unit, a second adjusting OTP unit and a quoting device. The quoting device outputs the choosing signal by weather the second adjusting OTP unit is stylization; the choosing device outputs one of the first OTP signal outputted by first adjusting OTP unit and the second OTP signal outputted by second adjusting OTP unit.

Description

Use a programmed element to reach the apparatus and method that repeatedly stylize

Technical field

The present invention relates to a kind of integrated circuit, particularly relate to programmed element of a kind of use and reach the apparatus and method that repeatedly stylize.

Background technology

In the manufacture process of integrated circuit (IC), because the process parameter between board and the board can not be accomplished in full accord, even the temperature in the same boiler tube also can not distribute very on average, therefore between each crystal grain (die) and crystal grain (die) on the same wafer (wafer), to such an extent as between each wafer (wafer) and the wafer (wafer), between each unit of cargo (lot) and the goods (lot), there is the process parameter drift of degree varies in the capital, therefore will cause some parameter drifts of integrated circuit, for example: the output voltage values of the frequency of oscillator or voltage adjuster (Voltage Regulator) etc. can with design load error to some extent.If the drift of these analogies (Analog) circuit parameter is excessive, surpassed the specification (for example 5% error) of integrated circuit, when test, will be judged as defective products.Therefore, regular meeting of integrated circuit manufacturer need finely tune some above-mentioned parameters, in order to promote fine ratio of product (yield).Because above-mentioned parameter is easily along with the drift of process parameter, and change, therefore in order to reach the consistency of shipment, how can use a programmed (the One-Time Programming of fuse (fuse) or wire etc., hereinafter to be referred as OTP) element, reach the function of fine setting.Generally speaking, these employed methods of factory setting that belong to integrated circuit can significantly promote yield.

The OTP method of adjustment that general integrated circuit is often used is laser preparing (laser trim) or fuse method for repairing and mending (poly fuse or title E-fuse).The employed OTP element of laser repairing method is a bit of metal wire sections (metal wire), and the method for burning (programming) is to burn this metal wire sections with high-octane laser (laser), so be commonly referred to as laser trim.The employed OTP element of fuse method for repairing and mending is a bit of polysilicon line segment (poly wire claims polyfuse again), and the method for burning is to utilize big electric current to burn (blowing) this polysilicon line segment or utilize big electric current to cause electronics drift (electron migration) and change the resistance value of this polysilicon line segment.And by reading circuit is detected this metal wire sections or whether the polysilicon line segment opens a way (open), or the change of resistance value just can know that whether this OTP element is by burning.Above-mentioned burning action is an irreversible destructive action, in case burning just, just burning again again.

When using the OTP element, as being example with the fuse: once writing (blowing), just can't write once more, so can't readjust parameter, also just repeatedly programmed.But, standing in user's angle, the client can wish these parameter values, behind the factory setting of integrated circuit, can also reset again, modification that can be repeatedly, adjust parameter value.For example super line style liquid crystal driver (STN LCDdriver) integrated circuit of reversing, though integrated circuit is adjusted to a value accurately with the operating voltage (VLCD) of STN LCD drive waveforms of output when dispatching from the factory, but arrived the STN LCD module factory in downstream, because the characteristic drift of dispensing liquid crystal, can make STN LCD module finish the contrast of product (Contrast Ratio) has also had drift, and then causes defective products.At this moment STN LCD module factory just wishes to finely tune once again very much the operating voltage (VLCD) of stn liquid crystal driver, to improve the fine ratio of product of STN LCD module.

Therefore, in order to reach the purpose of repeatedly programmed, in known method, be to use repeatedly programmed (Multiple-Time Programming, hereinafter to be referred as MTP) element, for example: can wipe off and erase formula ROM able to programme (EEPROM), fast flash memory bank MTP elements such as (FLASH MEMORY) of programmable ROM (EPROM), electronics realized the purpose of repeatedly programmed.But the MTP element but has the more expensive shortcoming of processing procedure, for example, the employed 0.35um 3.3V/18V of industry STN lcd driver integrated circuit high pressure manufacturing process now, if the MTP element of increase as EEPROM, needing increases by four road light shields (mask), and it is many also just to make manufacturing cost increase.And increased light shield, and meaning that also manufacturing time is elongated, delivery date, (lead time) was elongated.Increased light shield, meaned that also yield reduces.And have the wafer foundry (foundry) of MTP element and processing procedure (process) also less relatively, therefore adopt the MTP element also to be not easy to find suitable wafer foundry, for disperseing production capacity that very adverse influence is arranged.

This shows, above-mentioned existing programmed element reach the apparatus and method that repeatedly stylize method with use, obviously still have inconvenience and defective, and demand urgently further being improved.In order to solve the problem that the programmed element reaches the apparatus and method existence that repeatedly stylizes, relevant manufacturer there's no one who doesn't or isn't seeks solution painstakingly, but do not see always that for a long time suitable design finished by development, and common product does not have appropriate structure to address the above problem, and this obviously is the problem that the anxious desire of relevant dealer solves.

Because above-mentioned existing programmed element reaches the defective of the apparatus and method existence that repeatedly stylizes, the inventor is based on being engaged in this type of product design manufacturing abundant for many years practical experience and professional knowledge, and the utilization of cooperation scientific principle, actively studied innovation, reach the apparatus and method that repeatedly stylize in the hope of programmed element of use of founding a kind of new structure, can improve general existing programmed element and reach the apparatus and method that repeatedly stylize, make it have more practicality.Through constantly research, design, and after studying sample and improvement repeatedly, create the present invention who has practical value finally.

Summary of the invention

The objective of the invention is to, overcome the defective that existing programmed element reaches the apparatus and method existence that repeatedly stylizes, and provide programmed element of a kind of new use to reach the device that repeatedly stylizes, technical problem to be solved is to make it by different adjustment OTP element, gradation writes different parameter values, improves the shortcoming that the OTP element can't repeat to write, and reaches the function of repeatedly programmed, thereby be suitable for practicality more, and have the value on the industry.

Another object of the present invention is to, provide programmed element of a kind of use to reach the method that repeatedly stylizes, technical problem to be solved is: make its utilization judge whether the OTP element stylizes, select to export its OTP signal, so by most the OTP elements that repeatedly stylize, can reach repeatedly and stylize, thereby be suitable for practicality more.

The object of the invention to solve the technical problems realizes by the following technical solutions.The programmed element of a kind of use that proposes according to the present invention reaches the device that repeatedly stylizes, and it comprises: the OTP element is used in one first adjustment, in order to export one the one OTP signal; The OTP element is used in one second adjustment, in order to export one the 2nd OTP signal; One judgment means is coupled to this second adjustment and uses the OTP element, chooses signal in order to export one; And a choice device, be coupled to that this first adjusts with OTP element, this second adjusts with OTP element and this judgment means, in order to choose signal, export at an OTP signal and the 2nd OTP signal either-or according to this.

The object of the invention to solve the technical problems also can be applied to the following technical measures to achieve further.

Programmed element of aforesaid use reaches the device that repeatedly stylizes, it more comprises a writing station, be coupled to this and first adjust to adjust and use the OTP element, first adjust with OTP element and the one second adjustment data that writes in this in this second adjustment OTP element in order to write one first adjustment data with OTP element and this second; Wherein said judgment means checks whether this second the 2nd OTP signal of adjusting with the OTP element is initial value and exports this and choose signal.

Programmed element of aforesaid use reaches the device that repeatedly stylizes, wherein said writing station is if write this second adjustment data in this second adjustment OTP element, then this judgment means export this choose signal, will make this choice device select the output of the 2nd OTP signal in the two in an OTP signal and the 2nd OTP signal.

Programmed element of aforesaid use reaches the device that repeatedly stylizes, and wherein said adjustment is most fuses with the OTP element.

Programmed element of aforesaid use reaches the device that repeatedly stylizes, and wherein said adjustment is most wires with the OTP element, and available laser is adjusted those wires.

Programmed element of aforesaid use reaches the device that repeatedly stylizes, and wherein said adjustment also can be used the element once of programmed at least with the OTP element.

Programmed element of aforesaid use reaches the device that repeatedly stylizes, and wherein said adjustment also can be used EPROM element, EEPROM element, FLASH element with the OTP element, and the three's is arbitrary.

Programmed element of aforesaid use reaches the device that repeatedly stylizes, and wherein said choice device also can use and door (AND Gate) or door (OR Gate), and both is arbitrary.

The object of the invention to solve the technical problems also adopts following technical scheme to realize.The programmed element of a kind of use that proposes according to the present invention reaches the device that repeatedly stylizes, it comprises: the N+1 group is adjusted and is used the OTP element, called after the 1st, the 2nd in regular turn ... and N+1 group adjustment OTP element, each those adjustment is exported an OTP signal with the OTP element, and wherein N is the positive integer more than or equal to 1; N judgment means, called after the 1st, the 2nd in regular turn ... and N judgment means, signal is chosen in each those judgment means output one, and wherein N is the positive integer more than or equal to 1; And N choice device, called after the 1st in regular turn, the 2nd ... and N choice device, wherein N is the positive integer more than or equal to 1, signal is adjusted in each those choice device output one, wherein, N judgment means is coupled in N+1 group adjustment OTP element, N choice device is coupled to N+1 group adjustment OTP element, N-1 choice device and N judgment means, choose signal in order to this that export according to N judgment means, adjust this OTP signal and N-1 this adjustment signal either-or output that choice device is exported of being exported with the OTP element in the N+1 group, and the 1st judgment means is coupled in the 2nd group of adjustment OTP element, the 1st choice device is coupled to the 1st group of adjustment OTP element, the 2nd group of adjustment OTP element and the 1st judgment means, choose signal in order to this that export according to the 1st judgment means, export at this OTP signal either-or that the 1st group of adjustment exported with the OTP element with OTP element and the 2nd group of adjustment; Wherein said judgment means checks whether those those OTP signals of adjusting with the OTP element are initial value and export those and choose signal.

Programmed element of aforesaid use reaches the device that repeatedly stylizes, and it more comprises a writing station, is coupled to those adjustment OTP elements, in order to write most adjustment data in those adjustment OTP elements.

Programmed element of aforesaid use reaches the device that repeatedly stylizes, wherein said writing station is adjusted data at N+1 adjustment OTP element if write N+1, then N judgment means export this choose signal, to make N choice device adjust signal and N+1 OTP signal in the two, and select N+1 OTP signal to be output as N adjustment signal at N-1.

Programmed element of aforesaid use reaches the device that repeatedly stylizes, and wherein said adjustment is EPROM element, EEPROM element, FLASH element with the OTP element, and the three's is arbitrary.

The object of the invention to solve the technical problems also adopts following technical scheme to realize.The programmed element of a kind of use that proposes according to the present invention reaches the method that repeatedly stylizes, it comprises the following steps: to provide the N+1 group to adjust and uses the OTP element, called after the 1st, the 2nd in regular turn ... and N+1 group adjustment OTP element, each those adjustment is exported an OTP signal with the OTP element, and wherein N is the positive integer more than or equal to 1; N judgment means is provided, and called after the 1st, the 2nd in regular turn ... and N judgment means, signal is chosen in each those judgment means output one, and wherein N is the positive integer more than or equal to 1; N choice device is provided, called after the 1st, the 2nd in regular turn ... and N choice device, wherein N is the positive integer more than or equal to 1, signal is adjusted in each those choice device output one, wherein, N judgment means is coupled in N+1 group adjustment OTP element, and N choice device is coupled to the N+1 group and adjusts with OTP element, a N-1 choice device and N judgment means; This that export according to the 1st judgment means chosen signal, with OTP element and the 2nd group of this OTP signal either-or that adjustment is exported with the OTP element, and exports the 1st adjustment signal the 1st group of adjustment; And export according to N judgment means this choose signal, adjust this OTP signal and N-1 adjustment signal either-or of being exported with the OTP element in the N+1 group and export; Wherein said judgment means checks whether those those OTP signals of adjusting with the OTP element are initial value and export those and choose signal.

Programmed element of aforesaid use reaches the method that repeatedly stylizes, wherein said N judgment means according to the N+1 group adjust with the OTP signal of OTP element whether be initial value export this choose signal, make this OTP signal that the adjustment of N+1 group is exported with the OTP element with N-1 adjust signal in the two N-1 adjustment of selection signal export, and the 1st judgment means according to the 2nd group of adjustment with the OTP signal of OTP element whether be initial value export this choose signal, export at this OTP signal that the 1st group of adjustment selects the 1st group of adjustment to be exported with the OTP element with the OTP element in the two with OTP element and the 2nd group of adjustment, this method more comprises the following steps: one the 1st adjustment data is write the 1st group of adjustment OTP element; And a N+1 adjustment data is write the adjustment of N+1 group use the OTP element, this N judgment means then will make that adjusting this OTP signal of being exported with the OTP element in the N+1 group adjusts signal and select in the two N+1 to organize this OTP signal that adjustment exported with the OTP element to export with N-1.

Programmed element of aforesaid use reaches the method that repeatedly stylizes, and wherein said adjustment is most fuses with the OTP element.

Programmed element of aforesaid use reaches the method that repeatedly stylizes, and wherein said adjustment is most wires with the OTP element, and available laser is adjusted those wires.

Programmed element of aforesaid use reaches the method that repeatedly stylizes, and wherein said adjustment also can be used the element once of programmed at least with the OTP element.

Programmed element of aforesaid use reaches the method that repeatedly stylizes, and wherein said adjustment is EPROM element, EEPROM element, FLASH element with the OTP element, and the three's is arbitrary.

Programmed element of aforesaid use reaches the method that repeatedly stylizes, and wherein said choice device also can use and door (AND Gate) or door (OR Gate), and both is arbitrary.

The object of the invention to solve the technical problems also adopts following technical scheme to realize.The programmed element of a kind of use that proposes according to the present invention reaches the method that repeatedly stylizes, and it comprises the following steps: to provide first adjustment to use the OTP element, in order to export one the one OTP signal; Provide second adjustment to use the OTP element, in order to export one the 2nd OTP signal; One judgment means is provided, is coupled to this second adjustment and uses the OTP element, choose signal in order to export one; One choice device is provided, is coupled to this first adjustment OTP element, this second adjustment OTP element and this judgment means; And export according to this judgment means this choose signal, in an OTP signal and the output of the 2nd OTP signal either-or; Wherein said judgment means checks whether this second this OTP signal of adjusting with the OTP element is initial value and exports this and choose signal.

Programmed element of aforesaid use reaches the method that repeatedly stylizes, wherein said judgment means according to second adjust with the OTP signal of OTP element whether be initial value export this choose signal, export at this OTP signal that first group of adjustment selects first group of adjustment to be exported with the OTP element with the OTP element in the two with OTP element and second group of adjustment, this method more comprises the following steps: one first adjustment data is write first group of adjustment OTP element; And one second adjustment data write second group of adjustment OTP element, this judgment means then will make this OTP signal of selecting second group of adjustment to be exported with the OTP element in the two at this OTP signal that this OTP signal that second group of adjustment exported with the OTP element and first group of adjustment are exported with the OTP element export.

The present invention compared with prior art has tangible advantage and beneficial effect.By above technical scheme as can be known, in order to reach aforementioned goal of the invention, major technique of the present invention thes contents are as follows:

The present invention proposes the device that a kind of OTP of use element reaches the function that repeatedly stylizes, and this device comprises: first adjusts with OTP element, the second adjustment OTP element, judgment means and choice device.Wherein first adjust with the OTP element in order to export an OTP signal, second adjustment with the OTP element in order to export the 2nd OTP signal, judgment means is chosen signal in order to output.Choice device is coupled to first and adjusts with OTP element, second adjustment OTP element and the judgment means, chooses signal in order to foundation, in an OTP signal and the output of the 2nd OTP signal either-or.

Wherein, when writing station writes the adjustment data when second adjusts with the OTP element, above-mentioned judgment means is exported chooses signal, will make choice device select output the 2nd OTP signal, otherwise, then select OTP signal output.

The present invention provides a kind of OTP of use element to reach the device that repeatedly stylizes in addition, and this device comprises: the N+1 group is adjusted with OTP element, a N judgment means and N choice device.The N+1 group is adjusted and is used OTP element called after the 1st, the 2nd in regular turn ... and N+1 group adjustment OTP element; N judgment means be called after the 1st, the 2nd in regular turn ... and N judgment means; And N choice device called after the 1st, the 2nd in regular turn ... and N choice device.Wherein N is the positive integer more than or equal to 1.Each group is adjusted the signal with OTP element output OTP, and signal is chosen in each judgment means output, and signal is adjusted in each choice device output one.

Wherein, N choice device is coupled to the N+1 group and adjusts with OTP element, a N-1 choice device and N judgment means, in order to the signal of exporting according to N judgment means of choosing, adjust the OTP signal and N-1 the adjustment signal either-or output that choice device is exported of being exported in the N+1 group with the OTP element.When writing station writes the adjustment data when N+1 group is adjusted with the OTP element, above-mentioned judgment means is exported chooses signal, will make choice device select N+1 OTP signal of output, otherwise, then select N-1 adjustment signal to export.

And the 1st choice device is coupled to the 1st group of adjustment OTP element, the 2nd group of adjustment OTP element and the 1st judgment means, when writing station writes the adjustment data when the 2nd adjusts with the OTP element, above-mentioned judgment means is exported chooses signal, to make choice device select the 2nd OTP signal of output, otherwise, then select the 1st OTP signal output.

From another viewpoint, the present invention also proposes a kind of OTP of use element and reaches the method that repeatedly stylizes, the method comprises the following steps: at first to provide the N+1 group to adjust and uses the OTP element, called after the 1st, the 2nd in regular turn ... and N+1 group adjustment OTP element, each adjusts the signal with OTP element output OTP, and wherein N is the positive integer more than or equal to 1.And N judgment means is provided, called after the 1st, the 2nd in regular turn ... and N judgment means, signal is chosen in each judgment means output, and wherein N is the positive integer more than or equal to 1.N choice device is provided, called after the 1st, the 2nd in regular turn ... and N choice device, wherein N is the positive integer more than or equal to 1, signal is adjusted in each those choice device output one, wherein, N judgment means is coupled in N+1 group adjustment OTP element, and N choice device is coupled to the N+1 group and adjusts with OTP element, a N-1 choice device and N judgment means.Choose signal according to what the 1st judgment means exported, with OTP element and the 2nd group of OTP signal either-or that adjustment is exported with the OTP element, and export the 1st adjustment signal the 1st group of adjustment; And choose signal according to what N judgment means exported, adjust OTP signal and N-1 adjustment signal either-or of being exported with the OTP element in the N+1 group and export.

Above-mentioned use OTP element reaches the method that repeatedly stylizes, wherein, if do not write the adjustment data when adjusting with the OTP element, N+1 group is adjusted the signal of choosing that initial value with the OTP element will make that N judgment means export, OTP signal that the adjustment of N+1 group is exported with the OTP element with N-1 adjust signal in the two N-1 adjustment of selection signal export, and the 2nd group of adjustment will make the signal of choosing that the 1st judgment means export with the initial value of OTP element, export at the OTP signal that the 1st group of adjustment selects the 1st group of adjustment to be exported with the OTP element with the OTP element in the two with OTP element and the 2nd group of adjustment.

In an embodiment, when adjusting the integrated circuit of using method of the present invention first, the method more comprises: the 1st adjustment data is write the 1st group of adjustment OTP element.When adjusting this integrated circuit for the second time, the 2nd adjustment data is write the 2nd group of adjustment OTP element, and then the 1st judgment means will make that adjusting signal OTP signal that the 2nd group of adjustment exported with the OTP element and the 1st selects the 2nd group of OTP signal that adjustment is exported with the OTP element to export in the two.When follow-up when adjusting this integrated circuit again, N+1 adjustment data is write the adjustment of N+1 group use the OTP element, then N judgment means will make the N+1 group adjust the OTP signal and N-1 adjustment signal exported with the OTP element in the two selection N+1 organize the OTP signal that adjustment exported with the OTP element and export.

Be familiar with this skill person as can be known, above-mentioned device more can comprise being coupled to the writing station of adjusting with the OTP element, uses the OTP element in order to write the adjustment data in adjusting.Again, in an embodiment of the present invention, the OTP element can be wire (metal wire) or fuse (poly fuse), and wherein wire can be adjusted with laser, and the fuse available current is adjusted, and this narration is not sufficient to be used for limiting the present invention certainly.

By technique scheme, the present invention uses a programmed element to reach the apparatus and method that repeatedly stylize to have following advantage at least: the present invention uses the OTP element to reach the method and apparatus that repeatedly stylizes because of adopting, and therefore can utilize more cheap OTP element to reach the similar functions of expensive repeatedly programmed element.Though be the OTP element, but viewpoint for the user, be the same but with programmed element repeatedly, and because of processing procedure simple, so selectable wafer foundry is also more, also is applicable to most processing procedure, and can be limited to some wafer foundry, or being limited to some processing procedure, the problem that does not therefore more have production capacity also can reduce cost.

In sum, programmed element of the use of special construction of the present invention reaches the apparatus and method that repeatedly stylize, this device can gradation write different parameter values, it can utilize judges whether the OTP element stylizes, select to export its OTP signal, so, can reach repeatedly and stylize by most the OTP elements that repeatedly stylize.It has above-mentioned many advantages and practical value, and in like product and method, do not see have similar structural design and method to publish or use and really genus innovation, no matter it all has bigger improvement on product or function, have large improvement technically, and produced handy and practical effect, and more existing programmed element reaches the multinomial effect that the apparatus and method that repeatedly stylize have enhancement, thereby be suitable for practicality more, and have the extensive value of industry, really be a new and innovative, progressive, practical new design.

Above-mentioned explanation only is the general introduction of technical solution of the present invention, for can clearer understanding technological means of the present invention, and can be implemented according to the content of specification, and for above-mentioned and other purposes, feature and advantage of the present invention can be become apparent, below especially exemplified by going out a plurality of preferred embodiments, and conjunction with figs., be described in detail as follows.

Description of drawings

Fig. 1 is to use the OTP element to reach secondary programmed installation drawing.

Fig. 2 is to use the OTP element to reach repeatedly programmed installation drawing.

Adjustment in 100: the first is adjusted with the OTP element and is used the OTP element at 102: the second

110: judgment means 120: choice device

130,230: writing station was adjusted and is used the OTP element in 200: the 1

Adjusted in 202: the 2 with 204: the 3 adjustment OTP elements of OTP element

N adjusted with OTP element N+1 adjustment in 208: the OTP element in 206: the

212: the 2 judgment means of 210: the 1 judgment means

216: the N judgment means of 214: the N-1 judgment means

222: the 2 choice devices of 220: the 1 choice devices

226: the N choice devices of 224: the N-1 choice devices

Embodiment

Reach technological means and the effect that predetermined goal of the invention is taked for further setting forth the present invention, below in conjunction with accompanying drawing and preferred embodiment, programmed element of use that foundation the present invention is proposed reaches its embodiment of apparatus and method, structure, method, feature and the effect thereof that repeatedly stylizes, describe in detail as after.

Seeing also shown in Figure 1ly, is that a kind of OTP of the use element according to one embodiment of the invention reaches the installation drawing that secondary stylizes.According to having a choice device 120 shown in the figure, it is connected to first and adjusts with OTP element 100, second adjustment OTP element 102 and the judgment means 110, and wherein, judgment means 110 is coupled in second and adjusts with OTP element 102.In addition, more comprise a writing station 130, be connected first and adjust with the OTP element 100 and the second adjustment OTP element 102.

When the integrated circuit of using apparatus of the present invention was dispatched from the factory, second initial value of adjusting with OTP element 102 made the OTP signal of judgment means 110 for selecting first adjustment to be exported with OTP element 100, and is output as the adjustment signal by choice device 120.When adjusting this integrated circuit first, writing station 130 writes the first adjustment data and adjusts with OTP element 100 first, because judgment means 110 is according to second initial value of adjusting with OTP element 102, the signal of being exported of choosing makes choice device 120 receptions write the OTP signal that first first adjustment of adjusting data is exported with OTP element 100, is output as the adjustment signal.Then, when writing new adjustment data when second adjusts with OTP element 102, judgment means 110 is adjusted according to second and is stylized with OTP element 102, that is exported chooses signal and will select second to adjust with OTP element 102, and by second adjustment OTP element 102 outputs the 2nd OTP signal, behind choice device 120 receptions the 2nd OTP signal, be output as the adjustment signal.

In like manner, according to the foregoing description, when we need to write the adjustment data again N time (N for more than or equal to 1 positive integer), that is when needs repeatedly during programmed, please refer to Fig. 2, is that a kind of OTP of the use element according to preferred embodiment of the present invention reaches the installation drawing that repeatedly stylizes.

This embodiment uses N+1 to organize and adjusts with OTP element 200～208, a N judgment means 210～216 and N choice device 220～226, and difference is called after in regular turn: the 1st group of adjustment the 200, the 2nd group of adjustment of OTP element OTP element 202 ... and the N+1 group is adjusted with OTP element 208; The 1st judgment means 210, the 2nd judgment means 212 ... and N judgment means 216; And the 1st choice device 220, the 2nd choice device 222 ... and N choice device 226.

Wherein, the 1st choice device 220 is connected to the 1st group of adjustment the 200, the 2nd group of adjustment of OTP element OTP element 202 and the 1st judgment means 210; N choice device 226 is connected to the N+1 group and adjusts with OTP element 208, a N-1 choice device 224 and N judgment means 216.Wherein the 1st judgment means 210 is coupled to the 2nd group of adjustment OTP element 202 again, chosen signal according to what the 1st judgment means 210 exported, the OTP signal either-or that the 1st choice device 220 is exported with OTP element 202 with OTP element 200 and the 2nd group of adjustment the 1st group of adjustment is exported; N judgment means 216 is coupled to the N+1 group again and adjusts with OTP element 208, chosen signal according to what N judgment means 216 exported, adjust the adjustment signal either-or that the OTP signal exported with OTP element 208 and N-1 choice device 224 exported in the N+1 group and export.

Wherein, when all adjustment all do not write the adjustment data with the OTP element, judgment means 216 is adjusted with what the initial value of OTP element 208 was exported according to N+1 group and is chosen signal, with make N choice device 226 OTP signal that the adjustment of N+1 group is exported with OTP element 208 with N-1 adjust signal in the two N-1 adjustment of selection signal export, and the 1st judgment means 210 chosen signal according to the 2nd group of adjustment with what the initial value of OTP element 202 was exported, makes the 1st choice device 220 select 1st group OTP signal that adjustment with OTP element 200 exported with OTP element 202 in the two with OTP element 200 and the 2nd group of adjustment the 1st group of adjustment.

When adjusting this integrated circuit first, writing station 230 writes the 1st adjustment data at the 1st adjustment OTP element 200, because judgment means 210～216 is chosen signal according to adjusting with what the initial value of OTP element 202～208 was exported, the 1st choice device 220 the 1st group of adjustment with OTP element 200 and the 2nd group of adjustment usefulness OTP element 202 in the two, receive and write the 1st the 1st group of adjustment adjusting data, export the 1st and adjust signal with OTP element 200.And the 2nd choice device 222 is adjusted signal and the 3rd group of adjustment with OTP element 204 in the two at the 1st, receives the 1st and adjusts signal and be output as the 2nd adjustment signal.By that analogy, N choice device 226 is adjusted signal and N+1 group at N-1 and is adjusted with OTP element 208 and in the two, receive N-1 adjustment signal and be output as N adjustment signal.So, last output valve is exactly that the position is in 1st the adjustment data of the 1st adjustment with OTP element 200.

When adjusting this integrated circuit for the second time, writing station 230 writes the 2nd adjustment data and adjusts with OTP element 202 the 2nd, then the 1st judgment means 210 adjusted according to the 2nd and stylized with OTP element 202, exported choose signal will make the 1st choice device 220 the 1st group of adjustment with OTP element 200 and the 2nd group of adjustment usefulness OTP element 202 in the two, receive and write the 2nd the 2nd group of adjustment adjusting data, export the 1st and adjust signal with OTP element 202.And the 2nd choice device 222 is adjusted signal and the 3rd group of adjustment with OTP element 204 in the two at the 1st, receives the 1st and adjusts signal and be output as the 3rd adjustment signal.By that analogy, N choice device 226 is adjusted signal and N+1 group at N-1 and is adjusted with OTP element 208 and in the two, receive N-1 adjustment signal and be output as N adjustment signal.So, last output valve is exactly that the position is in 2nd the adjustment data of the 2nd adjustment with OTP element 202.

When needs are changed output signal or are desired to write new adjustment data once more, writing station 230 writes the N+1 group with N+1 adjustment data and adjusts with OTP element 208, then N judgment means 216 adjusted according to the N+1 group and stylized with OTP element 208, that is exported chooses signal and will make the N choice device adjust signal in the two at OTP signal that the adjustment of N+1 group is exported with OTP element 208 with N-1, selects N+1 to organize the OTP signal that adjustment exported with OTP element 208 and is output as N adjustment signal.

The present invention reaches the device that repeatedly stylizes except that proposing a kind of OTP of use element, also proposes a kind of OTP of use element and reaches the method that repeatedly stylizes.The method can comprise the following steps: with reference to said apparatus

The adjustment OTP element 200～208 of the above-mentioned N+1 group output OTP signal of mentioning at first is provided, and provides N output to choose the judgment means 210～216 of signal.

Chosen signal according to what the 1st judgment means 210 exported, with OTP element 200 and the 2nd group of OTP signal either-or that adjustment is exported with OTP element 202, and export the 1st adjustment signal the 1st group of adjustment; Chosen signal according to what the 2nd judgment means 212 exported, the OTP signal and the 1st adjustment signal either-or exported with OTP element 204 the 3rd group of adjustment, and export the 2nd adjustment signal; By that analogy, chosen signal, adjust OTP signal and N-1 adjustment signal either-or of being exported with OTP element 208 in the N+1 group and export according to what N judgment means 216 exported.

Wherein, when adjustment does not all write the adjustment data with the OTP element, judgment means 216 is chosen signal according to adjusting with what the initial value of OTP element 208 was exported, with make OTP signal that the adjustment of N+1 group is exported with OTP element 208 with N-1 adjust signal in the two N-1 adjustment of selection signal export, and the 1st judgment means 210 chosen signal according to adjusting with what the initial value of OTP element 202 was exported, the 1st group of adjustment with OTP element 200 and the 2nd group of adjustment with OTP element 202 in the two the 1st group of OTP signal that adjustment is exported with OTP element 200 of selection be output as the adjustment signal.

When adjusting this integrated circuit first, writing station 230 writes the 1st adjustment data at the 1st adjustment OTP element 200, because judgment means 210 is chosen signal according to adjusting with what the initial value of OTP element 202 was exported, make the 1st group of adjustment with OTP element 200 and the 2nd group of adjustment usefulness OTP element 202 in the two, select to have write the 1st the 1st group of adjustment adjusting data with OTP element 200, export the 1st and adjust signal.And the 2nd judgment means 212 makes that according to adjusting the signal of exporting with the initial value of OTP element 204 of choosing adjusting signal and the 3rd group of adjustment for the 1st in the two, selects the 1st adjustment signal to be output as the 2nd adjustment signal with OTP element 204.By that analogy, N judgment means 216 makes that according to adjusting the signal of exporting with the initial value of OTP element 208 of choosing adjusting signal and N+1 group for N-1 adjusts and use OTP element 208 in the two, selects N-1 adjustment signal to be output as N adjustment signal.So, last output valve is exactly that the position is in 1st the adjustment data of the 1st adjustment with OTP element 200.

When adjusting this integrated circuit for the second time, writing station 230 writes the 2nd adjustment data at the 2nd adjustment OTP element 202, then the 1st judgment means 210 stylized with OTP element 202 according to the 2nd adjustment, that is exported chooses signal and will make the 1st group of adjustment with OTP element 200 and the 2nd group of adjustment usefulness OTP element 202 in the two, select to have write the 2nd the 2nd group of adjustment adjusting data with OTP element 202, export the 1st and adjust signal.And the 2nd judgment means 212 makes that according to adjusting the signal of exporting with the initial value of OTP element 204 of choosing adjusting signal and the 3rd group of adjustment for the 1st in the two, selects the 1st adjustment signal to be output as the 2nd adjustment signal with OTP element 204.By that analogy, N judgment means 216 makes that according to adjusting the signal of exporting with the initial value of OTP element 208 of choosing adjusting signal and N+1 group for N-1 adjusts and use OTP element 208 in the two, selects N-1 adjustment signal to be output as N adjustment signal.So, last output valve is exactly that the position is in 2nd the adjustment data of the 2nd adjustment with OTP element 202.

When needs are changed output signal or are desired to write new adjustment data once more, writing station 230 writes the N+1 group with N+1 adjustment data and adjusts with OTP element 208, then N judgment means 216 adjusted according to N+1 and stylized with OTP element 208, exported choose signal will make the N+1 group adjust the OTP signal exported with OTP element 208 with N-1 adjust signal in the two selection N+1 organize the OTP signal that adjustment exported with OTP element 208 and be output as N adjustment signal.

By that analogy, when adjusting with the OTP element for N+1, we just can have and amount to N+1 time the function that writes the adjustment data again.So, with user's position, reach the apparatus and method that repeatedly stylize by above-mentioned use OTP element, just can utilize gradation to write and adjust signal to adjustment OTP element, reach that to be similar to the MTP element general, can repeat to write the function of adjustment data.And because of OTP element processing procedure is simpler than MTP element processing procedure, thus manufacturing cost can be lowered, and because of processing procedure is simpler, so the wafer factory that can select is also more.

The above, it only is preferred embodiment of the present invention, be not that the present invention is done any pro forma restriction, though the present invention discloses as above with preferred embodiment, yet be not in order to limit the present invention, any those skilled in the art, in not breaking away from the technical solution of the present invention scope, when the method that can utilize above-mentioned announcement and technology contents are made a little change or be modified to the equivalent embodiment of equivalent variations, but every content that does not break away from technical solution of the present invention, according to technical spirit of the present invention to any simple modification that above embodiment did, equivalent variations and modification all still belong in the scope of technical solution of the present invention.

Claims

1, programmed element of a kind of use reaches the device that repeatedly stylizes, and it is characterized in that it comprises:

The OTP element is used in one first adjustment, in order to export one the one OTP signal;

The OTP element is used in one second adjustment, in order to export one the 2nd OTP signal;

One judgment means is coupled to this second adjustment and uses the OTP element, chooses signal in order to export one; And

One choice device is coupled to this first adjustment with OTP element, this second adjustment OTP element and this judgment means, in order to choose signal according to this, in an OTP signal and the output of the 2nd OTP signal either-or;

Wherein said judgment means checks whether this second the 2nd OTP signal of adjusting with the OTP element is initial value and exports this and choose signal.

2, programmed element of use according to claim 1 reaches the device that repeatedly stylizes, it is characterized in that it more comprises a writing station, be coupled to this and first adjust to adjust and use the OTP element, first adjust with OTP element and the one second adjustment data that writes in this in this second adjustment OTP element in order to write one first adjustment data with OTP element and this second.

3, programmed element of use according to claim 2 reaches the device that repeatedly stylizes, it is characterized in that wherein said writing station if write this second adjustment data in this second adjustment OTP element, then this judgment means export this choose signal, will make this choice device select the output of the 2nd OTP signal in the two in an OTP signal and the 2nd OTP signal.

4, programmed element of use according to claim 1 reaches the device that repeatedly stylizes, and it is characterized in that wherein said adjustment is most fuses with the OTP element.

5, programmed element of use according to claim 1 reaches the device that repeatedly stylizes, and it is characterized in that wherein said adjustment is most wires with the OTP element, and available laser is adjusted those wires.

6, programmed element of use according to claim 1 reaches the device that repeatedly stylizes, and it is characterized in that wherein said adjustment also can use the element once of programmed at least with the OTP element.

7, programmed element of use according to claim 1 reaches the device that repeatedly stylizes, and it is characterized in that wherein said adjustment also can use EPROM element, EEPROM element, FLASH element with the OTP element, and the three's is arbitrary.

8, programmed element of use according to claim 1 reaches the device that repeatedly stylizes, and it is characterized in that wherein said choice device also can use and door or door, and both is arbitrary.

9, programmed element of a kind of use reaches the device that repeatedly stylizes, and it is characterized in that it comprises:

The N+1 group is adjusted and is used the OTP element, and called after the 1st, the 2nd in regular turn ... and the adjustment of N+1 group uses the OTP element, and each those adjustment is exported an OTP signal with the OTP element, and wherein N is the positive integer more than or equal to 1;

N judgment means, called after the 1st, the 2nd in regular turn ... and N judgment means, signal is chosen in each those judgment means output one, and wherein N is the positive integer more than or equal to 1; And

N choice device, called after the 1st, the 2nd in regular turn ... and N choice device, wherein N is the positive integer more than or equal to 1, signal is adjusted in each those choice device output one,

Wherein, N judgment means is coupled in N+1 group adjustment OTP element, N choice device is coupled to the N+1 group and adjusts with OTP element, a N-1 choice device and N judgment means, choose signal in order to this that export according to N judgment means, adjust this OTP signal and N-1 this adjustment signal either-or output that choice device is exported of being exported with the OTP element in the N+1 group

And the 1st judgment means is coupled in the 2nd group of adjustment OTP element, the 1st choice device is coupled to the 1st group of adjustment OTP element, the 2nd group of adjustment OTP element and the 1st judgment means, choose signal in order to this that export according to the 1st judgment means, export at this OTP signal either-or that the 1st group of adjustment exported with the OTP element with OTP element and the 2nd group of adjustment;

Wherein said judgment means checks whether those those OTP signals of adjusting with the OTP element are initial value and export those and choose signal.

10, programmed element of use according to claim 9 reaches the device that repeatedly stylizes, it is characterized in that it more comprises a writing station, be coupled to those adjustment OTP elements, in order to write most adjustment data in those adjustment OTP elements.

11, programmed element of use according to claim 10 reaches the device that repeatedly stylizes, it is characterized in that wherein said writing station and adjust data at N+1 group adjustment OTP element if write N+1, then N judgment means export this choose signal, to make N choice device adjust signal and N+1 OTP signal in the two, and select N+1 OTP signal to be output as N adjustment signal at N-1.

12, programmed element of use according to claim 9 reaches the device that repeatedly stylizes, and it is characterized in that wherein said adjustment is most fuses with the OTP element.

13, programmed element of use according to claim 9 reaches the device that repeatedly stylizes, and it is characterized in that wherein said adjustment is most wires with the OTP element, and available laser is adjusted those wires.

14, programmed element of use according to claim 9 reaches the device that repeatedly stylizes, and it is characterized in that wherein said adjustment also can use the element once of programmed at least with the OTP element.

15, programmed element of use according to claim 9 reaches the device that repeatedly stylizes, and it is characterized in that wherein said adjustment is EPROM element, EEPROM element, FLASH element with the OTP element, and the three's is arbitrary.

16, programmed element of use according to claim 9 reaches the device that repeatedly stylizes, and it is characterized in that wherein said choice device also can use and door or door, and both is arbitrary.

17, programmed element of a kind of use reaches the method that repeatedly stylizes, and it is characterized in that it comprises the following steps:

Provide the N+1 group to adjust and use the OTP element, called after the 1st, the 2nd in regular turn ... and the adjustment of N+1 group uses the OTP element, and each those adjustment is exported an OTP signal with the OTP element, and wherein N is the positive integer more than or equal to 1;

N judgment means is provided, and called after the 1st, the 2nd in regular turn ... and N judgment means, signal is chosen in each those judgment means output one, and wherein N is the positive integer more than or equal to 1;

N choice device is provided, called after the 1st, the 2nd in regular turn ... and N choice device, wherein N is the positive integer more than or equal to 1, signal is adjusted in each those choice device output one, wherein, N judgment means is coupled in N+1 group adjustment OTP element, and N choice device is coupled to the N+1 group and adjusts with OTP element, a N-1 choice device and N judgment means;

This that export according to the 1st judgment means chosen signal, with OTP element and the 2nd group of this OTP signal either-or that adjustment is exported with the OTP element, and exports the 1st adjustment signal the 1st group of adjustment; And

This that export according to N judgment means chosen signal, adjusts this OTP signal and N-1 adjustment signal either-or of being exported with the OTP element in the N+1 group and exports;

18, programmed element of use according to claim 17 reaches the method that repeatedly stylizes, it is characterized in that wherein said N judgment means according to the N+1 group adjust with the OTP signal of OTP element whether be initial value export this choose signal, make this OTP signal that the adjustment of N+1 group is exported with the OTP element with N-1 adjust signal in the two N-1 adjustment of selection signal export, and the 1st judgment means according to the 2nd group of adjustment with the OTP signal of OTP element whether be initial value export this choose signal, export at this OTP signal that the 1st group of adjustment selects the 1st group of adjustment to be exported with the OTP element with the OTP element in the two with OTP element and the 2nd group of adjustment, this method more comprises the following steps:

One the 1st adjustment data is write the 1st group of adjustment OTP element; And

One N+1 adjustment data is write N+1 group adjustment OTP element, this N judgment means then will make that adjusting this OTP signal of being exported with the OTP element in the N+1 group adjusts signal and select in the two N+1 to organize this OTP signal that adjustment exported with the OTP element to export with N-1.

19, programmed element of use according to claim 17 reaches the method that repeatedly stylizes, and it is characterized in that wherein said adjustment is most fuses with the OTP element.

20, programmed element of use according to claim 17 reaches the method that repeatedly stylizes, and it is characterized in that wherein said adjustment is most wires with the OTP element, and available laser is adjusted those wires.

21, programmed element of use according to claim 17 reaches the method that repeatedly stylizes, and it is characterized in that wherein said adjustment also can use the element once of programmed at least with the OTP element.

22, programmed element of use according to claim 17 reaches the method that repeatedly stylizes, and it is characterized in that wherein said adjustment is EPROM element, EEPROM element, FLASH element with the OTP element, and the three's is arbitrary.

23, programmed element of use according to claim 17 reaches the method that repeatedly stylizes, and it is characterized in that wherein said choice device also can use and door or door, and both is arbitrary.

24, programmed element of a kind of use reaches the method that repeatedly stylizes, and it is characterized in that it comprises the following steps:

Provide first adjustment to use the OTP element, in order to export one the one OTP signal;

Provide second adjustment to use the OTP element, in order to export one the 2nd OTP signal;

One judgment means is provided, is coupled to this second adjustment and uses the OTP element, choose signal in order to export one;

One choice device is provided, is coupled to this first adjustment OTP element, this second adjustment OTP element and this judgment means; And

This that export according to this judgment means chosen signal, in an OTP signal and the output of the 2nd OTP signal either-or;

Wherein said judgment means checks whether this second this OTP signal of adjusting with the OTP element is initial value and exports this and choose signal.

25, programmed element of use according to claim 24 reaches the method that repeatedly stylizes, it is characterized in that wherein said judgment means according to second adjust with the OTP signal of OTP element whether be initial value export this choose signal, adjust to adjust with OTP element and second with OTP element this OTP signal that selection first adjustment is exported with the OTP element in the two first and export, this method more comprises the following steps:

One first adjustment data is write the first adjustment OTP element; And

One second adjustment data is write the second adjustment OTP element, this judgment means then will make that adjusting this OTP signal and first of being exported with the OTP element second adjusts this OTP signal of being exported with the OTP element this OTP signal that selection second adjustment is exported with the OTP element in the two and export.

26, programmed element of use according to claim 24 reaches the method that repeatedly stylizes, and it is characterized in that wherein said adjustment is most fuses with the OTP element.

27, programmed element of use according to claim 24 reaches the method that repeatedly stylizes, and it is characterized in that wherein said adjustment is most wires with the OTP element, and available laser is adjusted those wires.

28, programmed element of use according to claim 24 reaches the method that repeatedly stylizes, and it is characterized in that wherein said adjustment also can use the element once of programmed at least with the OTP element.

29, programmed element of use according to claim 24 reaches the method that repeatedly stylizes, and it is characterized in that wherein said adjustment is EPROM element, EEPROM element, FLASH element with the OTP element, and the three's is arbitrary.

30, programmed element of use according to claim 24 reaches the method that repeatedly stylizes, and it is characterized in that wherein said choice device also can use and door or door, and both is arbitrary.