Summary of the invention
Based on this, it is necessary to the detection restorative procedure and photoresist repair apparatus of a kind of arraying bread board are provided, effectively to gold
The photoresist belonged in line manufacturing process is repaired, and avoids metal wire from breaking, simple process has saved cost of manufacture.
The present invention proposes a kind of detection restorative procedure of arraying bread board, comprising:
One substrate is provided;
Deposited metal layer on the substrate;
Photoresist is coated on the metal layer, and is developed and formed metal line pattern;
Detect whether the corresponding photoresist of the metal line pattern there are abnormal conditions, if so, repairing to the abnormal conditions
It is multiple;
It etches the metal layer and forms metal wire.
The described the step of abnormal conditions are repaired in one of the embodiments, are as follows: using photoresist to described
Abnormal conditions are repaired.
Whether the corresponding photoresist of the detection metal line pattern has abnormal conditions in one of the embodiments, if
The step of having, being repaired using photoresist to the abnormal conditions includes:
Detect whether the corresponding photoresist of the metal line pattern there are abnormal conditions by detection device, if so, described in obtaining
The information of abnormal conditions, and it is sent to photoresist repair apparatus;
The photoresist repair apparatus repairs the abnormal conditions according to the information of the abnormal conditions.
The information of the abnormal conditions includes the location information and size of the abnormal conditions in one of the embodiments,
Information.
The location information includes position of the abnormal conditions on the glass substrate in one of the embodiments,
Coordinate;The dimension information includes the overall size of the abnormal conditions.
The abnormal conditions include wearing for the corresponding photoresist exception of the metal line pattern in one of the embodiments,
Hole, gap or notch.
It is described in one of the embodiments, to coat photoresist on the metal layer, and develop and form metal line pattern
Step includes:
Photoresist is coated on the metal layer, forms photoresist layer;
Mask plate is set on the photoresist layer, blocks the corresponding photoresist of the metal line pattern;
The photoresist layer is exposed, is washed the photoresist of exposed portion with developer, development forms metal line pattern.
The step of etching metal layer forms metal wire in one of the embodiments, are as follows:
It will not etched away by the metal layer that photoresist covers, retain the metal layer of the metal line pattern covering, form metal
Line.
The detection restorative procedure of above-mentioned arraying bread board coats light on substrate after deposited metal layer on the metal layer
Resistance, and develop and form metal line pattern, then detect whether the corresponding photoresist of the metal line pattern there are abnormal conditions, if so,
Then the abnormal conditions are repaired, the metal layer is finally etched and forms metal wire.Due to forming metal line chart in development
After shape, if detect that the corresponding photoresist of metal line pattern there are abnormal conditions, photoresist is repaired in time, without light
Heavy industry is hindered, avoids metal wire from breaking, simple process has saved cost of manufacture.
The present invention also proposes a kind of photoresist repair apparatus, and the photoresist repair apparatus includes control module and processing module,
The control module is used for after the photoresist layer develops and to form metal line pattern, obtains the metal line pattern pair
The information of the abnormal conditions for the photoresist answered controls the control of the processing module operation according to the output of the information of the abnormal conditions
Instruction;
The processing module is used to repair the abnormal conditions according to the control instruction.
In above-mentioned photoresist repair apparatus, control module is used for after the photoresist layer develops and to form metal line pattern, is obtained
The information of the abnormal conditions of the corresponding photoresist of the metal line pattern controls the place according to the output of the information of the abnormal conditions
Manage the control instruction of module operation.Processing module is used to repair abnormal conditions according to the control instruction.Therefore, it is being lithographically formed
During metal wire, photoresist layer develops to form metal line pattern after, control module obtains the corresponding photoresist of metal line pattern
After the information of abnormal conditions, just control processing module repairs the abnormal conditions in time, and metal wire is avoided to break, technique letter
It is single, save cost of manufacture.
The present invention also proposes a kind of detection restorative procedure of arraying bread board, comprising:
One substrate is provided;
Deposited metal layer on the substrate;
Photoresist is coated on the metal layer, and is developed and formed metal line pattern;
Detect whether the corresponding photoresist of the metal line pattern there are abnormal conditions by detection device, if so, described in obtaining
The information of abnormal conditions, and it is sent to photoresist repair apparatus;Wherein, the information of the abnormal conditions includes the abnormal conditions
Location information and dimension information;
The photoresist repair apparatus repairs the abnormal conditions according to the information of the abnormal conditions;
It etches the metal layer and forms metal wire.
The detection restorative procedure of above-mentioned arraying bread board coats light on substrate after deposited metal layer on the metal layer
Resistance, and develop and form metal line pattern, then detect whether the corresponding photoresist of the metal line pattern there are abnormal conditions, if so,
Then the abnormal conditions are repaired, the metal layer is finally etched and forms metal wire.Due to forming metal line chart in development
After shape, if detect that the corresponding photoresist of metal line pattern there are abnormal conditions, photoresist is repaired in time, without light
Heavy industry is hindered, avoids metal wire from breaking, simple process has saved cost of manufacture.
Specific embodiment
Referring to the flow chart for the detection restorative procedure that Fig. 1, Fig. 1 are arraying bread board in an embodiment.Wherein, pixel controller
Part is, for example, thin film transistor (TFT) (TFT, Thin Film Transistor).Arraying bread board is, for example, tft array panel etc..
In the present embodiment, the detection restorative procedure of the arraying bread board, comprising:
Step S101 provides a substrate.
Specifically, substrate is, for example, glass substrate.
Step S102, the deposited metal layer on substrate.
Step S103 coats photoresist on the metal layer, and develops and form metal line pattern.
Metal wire is for example including grid line and data line.During forming metal wire, referring to fig. 2, in glass substrate
Deposited metal layer 11 on 10 coats photoresist on metal layer 11, forms photoresist layer, mask plate is arranged on photoresist layer, blocks gold
Belong to the corresponding photoresist of line graph, photoresist layer is exposed, is washed the photoresist of exposed portion with developer, development forms metal wire
Figure 12.Wherein, the material of metal layer 11 is aluminium (or copper) and molybdenum.
Step S104, whether the corresponding photoresist of detection metal line pattern has abnormal conditions, if so, repairing to abnormal conditions
It is multiple.
After development forms metal line pattern, needs not etched away by the metal layer that photoresist covers, retain metal wire
The metal layer of figure covering, forms metal wire.Referring to Fig. 3, if the corresponding photoresist of metal line pattern 12 has abnormal conditions (abnormal feelings
Perforation 20, gap 21 and notch 22 of the condition for example including the corresponding photoresist exception of the metal line pattern), in the process of etching
In, then metal wire can be caused abnormal not etched away by the metal layer 11 that photoresist covers at abnormal conditions, if grid line breaks,
Grid line is caused to lose its due function, display screen cancels, it is therefore desirable to avoid such case.In the present embodiment, in order to keep away
Exempt from above situation occur, is detecting that metal line pattern 12 there are after abnormal conditions, is repaired in time.
Specifically, the step of abnormal conditions being repaired are as follows: abnormal conditions are repaired using photoresist.Such as: it can
To fill up perforation 20 with photoresist, gap 21 is repaired, notch 22 is repaired complete etc..
Step S105, etching sheet metal form metal wire.
After abnormal conditions in metal line pattern are repaired, it thereby may be ensured that metal line pattern is intact.
In this case, to not performed etching by the metal layer that photoresist covers, retain the metal layer of metal line pattern covering, and then most
It is capable of forming complete metal wire eventually.
The detection restorative procedure of above-mentioned arraying bread board provided in this embodiment, the deposited metal layer on substrate, in metal layer
Upper coating photoresist, and develop and form metal line pattern, it is repaired in time if detecting that metal line pattern has abnormal conditions later
It mends, without photoresist heavy industry, metal wire is avoided to break.Break simultaneously without after etching sheet metal forms metal wire
Line repairing, simple process have saved cost of manufacture.
Specifically, if arraying bread board is TFT-LCD (thin film transistor-liquid crystal
Display, Thin Film Transistor-LCD), then the manufacturing process of TFT-LCD includes: the manufacturing process of tft array, CF
The manufacturing process of (color filter, colored filter) substrate, the manufacturing process of liquid crystal cell, peripheral circuit, assembling backlight
Deng module assembled technique.
(1) manufacturing process of tft array
It can be using above-mentioned steps S101 to step about the manufacturing process of grid line in the manufacturing process of tft array
S105.After the completion of grid line manufacture, will also following steps be continued to execute in the manufacturing process of tft array:
Step a deposits Si3N4 (silicon nitride), a-Si (amorphous silicon), N+a-si (N-type silicon): first with PECVD
(Plasma Enhanced Chemical Vapor Deposition, the vapour deposition process of plasma enhanced chemical) technology
Be respectively coated one layer of Si3N4, N+a-si and a-Si, then on N+a-si and a-Si be coated with photoresist glue, by exposure, development,
Etching forms required shape except glue.It wherein, equally can be according to the method inspection of above-mentioned steps S104 after the completion of development
Whether photoresist has abnormal conditions, if so, repairing to abnormal conditions.
Step b forms source electrode line, drain line.One layer of metal material is coated with first on a-Si as source electrode line and drain electrode
Then line is coated with photoresist glue on the metal material and forms required shape by exposing, developing, etching and removing glue.Wherein, exist
After the completion of development, equally it can check whether photoresist has abnormal conditions according to the method for above-mentioned steps S104, if so, to abnormal feelings
Condition is repaired.
Step c precipitates Si3N4 and ITO (Indium tin oxide, tin indium oxide): precipitating first with PECVD technique
Then one layer of Si3N4 is coated one layer of ITO.
So far, entire TFT substrate manufacture is completed.
(2) manufacturing process of CF (color filter, colored filter) substrate
The forming method of colored filter coloured part has dye method, pigment dispersion method, print process, strike, spray
The method of the use of ink and water.
Wherein, the first step of pigment dispersion method be by evengranular micro pigment (average grain diameter is less than 0.1 μm) (R, G,
Tri- color of B) it is dispersed in transparent photosensitive resin.Then they are sequentially formed successively with coating, exposure, developing process method
R.G.B trichromatic diagram case.Optical lithography is used during manufacturing, and equipment therefor is mainly applied, exposed, developing apparatus.
Light leakage in order to prevent will generally blacken matrix (BM) in tri- color intersection of RGB.Such as single layer is formed with sputtering method
Crome metal film;Or with the compound BM film of crome metal and chromium oxide or the resin type BM of resin mixing carbon.
In addition it is also necessary to make layer protecting film on BM and form IT0 electrode, due to having the substrate of colored filter
(i.e. CF substrate) be constitute liquid crystal cell together with the metacoxal plate (i.e. TFT substrate) of TFT as the preceding substrate of liquid crystal display, so
Orientation problem must have been paid close attention to, has kept each unit of colored filter corresponding with each pixel of TFT substrate.
(3) manufacturing process of liquid crystal cell
Polyimide film is respectively applied on CF substrate, TFT substrate surface first and passes through friction process, being formed, which can induce, divides
The alignment films that son arranges as required.Later in the good sealant material of TFT substrate periphery cloth, and sprinkling liner on the tft substrate.Together
When CF substrate transparent electrode end be coated with silver paste.Then by two pieces of substrate contraposition bondings, make CF pattern and TFT pattern of pixels
One it is a pair of just, then thermally treated solidify sealing material.In printing and sealing material, inlet need to be left, is filled to vacuumize
Injecting liquid crystal.
(4) the module assembled technique of peripheral circuit, assembling backlight etc.
After the completion of liquid crystal cell manufacture craft, need to install peripheral drive circuit on panel, then in two pieces of substrate surfaces
Stick polarizing film.Backlight to be also installed if it is transmission-type LCD..
Referring to fig. 4, Fig. 4 is the flow chart of the detection restorative procedure of arraying bread board in another embodiment.
In the present embodiment, the detection restorative procedure of the arraying bread board includes:
Step S201 provides a substrate.
Step S202, the deposited metal layer on substrate.
Step S203 coats photoresist on the metal layer, forms photoresist layer.
Step S204, is arranged mask plate on photoresist layer, blocks the corresponding photoresist of metal line pattern.
Step S205 exposes photoresist layer, is washed the photoresist of exposed portion with developer, and development forms metal line chart
Shape.
It is understood that coating photoresist on the metal layer, and the specific reality for the step for the forming metal line pattern that develop
Existing mode is not limited to above situation, as long as can develop to form metal line pattern.
Step S206 detects whether the corresponding photoresist of metal line pattern has abnormal conditions by detection device, if there is entrance
Step S207, if it is not, entering step S209.
Wherein, detection device such as optical microscopy.After development forms metal line pattern, pass through Microscopy
Whether the metal line pattern in have abnormal conditions, optical microscopy, which can amplify small abnormal conditions, to be imaged, and is obtained if surveying
The information of abnormal conditions.
Step S207, obtains the information of abnormal conditions, and is sent to photoresist repair apparatus.
Wherein, location information of the information of abnormal conditions for example including abnormal conditions, dimension information, a kind of in depth information
Or it is two or more.Wherein, position coordinates of the location information for example including abnormal conditions on the glass substrate.Dimension information for example wraps
Include the overall size of abnormal conditions.
Step S208, photoresist repair apparatus repair abnormal conditions according to the information of abnormal conditions.
In the step, for photoresist repair apparatus for example including control module and processing module, the control module is different for obtaining
The information of reason condition, and the control instruction that control processing module operates is exported according to the information of the abnormal conditions.Processing module is used
According to control instruction reparation abnormal conditions.Wherein, processing module can flexible motion, such as may be rotated and horizontal fortune
It is dynamic, and have the spray head for spraying photoresist, the abnormal conditions of the photoresist of any position are repaired with realizing.Specifically
Ground, processing module for example can use traditional mechanical arm in conjunction with traditional automatic double surface gluer to repair to abnormal conditions.
In this step, processing module controls the spray head of processing module according to location information, the dimension information of abnormal conditions
Photoresist is sprayed to abnormal conditions, and processing module controls what spray head was sprayed in each position according to the depth information of abnormal conditions
Photoresist total amount (such as: if the spray head unit time in spray photoresist amount it is identical, control module by control spray head injection
The time of photoresist is the total amount for the photoresist that controllable spray head sprays each position).
Further, after the completion of being repaired to abnormal conditions, the photoresist of reparation can also be toasted (for example, by using with
The identical condition of front baking is toasted in conventional lithography process), to avoid the lens for the gaseous contamination detection device that photoresist distributes,
From the accuracy for improving detection device detection abnormal conditions.
It is understood that whether the corresponding photoresist of detection metal line pattern has abnormal conditions, if so, using photoresist to different
The specific implementation for the step for reason condition is repaired is not limited to above situation, as long as metal line pattern can detected
Corresponding photoresist occurs repairing abnormal conditions when abnormal conditions.
Step S209 will not etched away by the metal layer that photoresist covers, be retained the metal layer of metal line pattern covering, be formed
Metal wire.
The information (such as location information and dimension information) of photoresist abnormal conditions is sent to photoresist repair apparatus, by photoresist
Repair apparatus repairs the abnormal conditions of photoresist according to the information of the abnormal conditions, and then forms complete metal line chart
Shape avoids generating metal wire broken string during being lithographically formed metal wire.
The detection restorative procedure of above-mentioned arraying bread board, the deposited metal layer on substrate coat photoresist on the metal layer, and show
Shadow forms metal line pattern, detects whether metal line pattern has abnormal conditions by detection device, and obtain the letter of abnormal conditions
Breath, is sent to photoresist repair apparatus for the information of the abnormal conditions, is repaired the abnormal conditions in time by photoresist repair apparatus, from
Without photoresist heavy industry, metal wire is avoided to break.It is repaired simultaneously without break after etching sheet metal forms metal wire
It mends, simple process has saved cost of manufacture.
The present invention also proposes a kind of photoresist repair apparatus, can be to occurring in thin film transistor (TFT) manufacturing process in arraying bread board
Photoresist broken string or perforation etc. abnormal conditions repaired.Wherein, arraying bread board is, for example, tft array panel etc..
In one of the embodiments, referring to FIG. 5, the photoresist repair apparatus includes control module 100 and processing module
200, which is used for after photoresist layer develops and to form metal line pattern, obtains the corresponding photoresist of metal line pattern
Abnormal conditions information (location information of the information of the abnormal conditions for example including abnormal conditions, dimension information, in depth information
One or more), and according to the information of the abnormal conditions export control processing module 200 operate control instruction.Control
Molding block 100 is, for example, PLC (Programmable Logic Contro, programmable logic controller (PLC)).
Processing module 200 is used to repair abnormal conditions according to the control instruction.Further, the place of the photoresist repair apparatus
Manage module 200 can flexible motion, such as may be rotated and horizontal movement, and have the spray head for spraying photoresist, with
The abnormal conditions of the photoresist of any position are repaired in realization.Specifically, processing module 200 for example can use traditional machine
Tool arm repairs abnormal conditions in conjunction with traditional automatic double surface gluer.
Processing module 200 controls the spray head of processing module 200 to exception according to location information, the dimension information of abnormal conditions
Situation sprays photoresist, and processing module 200 controls the light that spray head is sprayed in each position according to the depth information of abnormal conditions
Resistance total amount (such as: if the spray head unit time in spray photoresist amount it is identical, control module 100 by control spray head spray
The total amount for the photoresist that the time for penetrating photoresist can control spray head to spray each position).
In one of the embodiments, with continued reference to FIG. 5, photoresist repair apparatus further includes above-mentioned optical microscopy 300.
The optical microscopy 300 is for detecting whether the corresponding photoresist of metal line pattern has abnormal conditions, if so, obtaining abnormal conditions
Information, and send and supreme state control module 100.
Above-mentioned photoresist repair apparatus, during being lithographically formed metal wire, photoresist layer develops to form metal line pattern after,
When the corresponding photoresist of metal line pattern has abnormal conditions, control module 100 obtains the information of abnormal conditions, and according to the exception
The information of situation generates the corresponding instruction control movement of processing module 200 and is accurately repaired to the abnormal conditions, avoids gold
Belong to line broken string, simple process has saved cost of manufacture.
It should be noted that function and above-described embodiment that photoresist repair apparatus provided in this embodiment may be implemented provide
Arraying bread board detection restorative procedure in photoresist detection with repair principle it is corresponding, just repeat no more here.
Each technical characteristic of above embodiments can be combined arbitrarily, for simplicity of description, not to above-described embodiment
In each technical characteristic it is all possible combination be all described, as long as however, the combination of these technical characteristics be not present lance
Shield all should be considered as described in this specification.
Only several embodiments of the present invention are expressed for above embodiments, and the description thereof is more specific and detailed, but can not
Therefore it is construed as limiting the scope of the patent.It should be pointed out that for those of ordinary skill in the art,
Under the premise of not departing from present inventive concept, various modifications and improvements can be made, and these are all within the scope of protection of the present invention.
Therefore, the scope of protection of the patent of the invention shall be subject to the appended claims.