Summary of the invention
According to an aspect of the present invention, major subjects are that convex block (bump) component can accurately be detected by providing one kind
Carrying quality, and can be realized maintenance or improved electronic component mounting system and the electronic component attachment side of the carrying quality
Method.
A kind of electronic component mounting system is provided according to an aspect of the present invention, wherein includes: electro part carrying dress
It sets, so that the convex block for being formed in electronic component is overlapped onto the electronic component engagement electrode for being formed in substrate, to carry the electricity
Subassembly;Reflux unit heats the substrate after the carrying electronic component and the convex block is made to be joined to the electrode;
Control unit controls the electro part carrying device;And x-ray check device, it is set to the electro part carrying device
Between the reflux unit, measurement carry the electrode on the substrate after the electronic component position and the convex block
Position, described control unit carry out feedback control to the electro part carrying device as follows: will be checked by the x-ray
The position of the two of the position acquisition of the position of the electrode and the convex block measured by device, which is deviateed, is reduced.
Wherein, the electro part carrying device may include: mouthpiece part, pick up from the supply department of the electronic component
The electronic component and the electrode for being carried to the substrate;Boarded head is rotatably mounted with the nozzle section in axis
Part;XY mobile mechanism moves the boarded head along the direction XY in the horizontal plane, and described control unit is in order to reduce the position
Deviate and calculate the position correction amount on the direction XY of boarded head when carrying the electronic component, and with described in the carrying
The mode that the position correction amount is able to reflect when electronic component carries out feedback control to the electro part carrying device.
Wherein, described control unit can be in the viewpoint of each region for the substrate and for the mouthpiece part
Each rotation angle viewpoint at least one viewpoint calculate the position correction amount.
Also, according to another aspect of the present invention, provide a kind of electronic component attaching method, wherein comprise the following steps:
Electro part carrying process makes the convex block for being formed in electronic component overlap onto the electronic component engagement electrode for being formed in substrate,
To carry the electronic component;Reflow process heats the substrate after the carrying electronic component and makes the convex block
It is joined to the electrode;X-ray inspection operation, between the electro part carrying process and the reflow process, by x-ray inspection
The position of the electrode on substrate after the device measurement carrying electronic component and the position of the convex block;And control work
Sequence carries out feedback control to the electro part carrying process as follows: will be by measuring in the x-ray inspection operation
The position of the two of the position acquisition of the position of the electrode and the convex block, which is deviateed, is reduced.
Wherein, electro part carrying device, the electro part carrying device are used in the electro part carrying process
Can have: mouthpiece part picks up the electronic component from the supply department of the electronic component and is carried to the electricity of the substrate
Pole;Boarded head is rotatably mounted with the mouthpiece part in axis;XY mobile mechanism makes the boarded head in level
The face direction Nei YanXY is mobile, and in the control process, in order to reduce, the position is deviateed and is calculated and is carried the electronic component
When the boarded head the direction XY on position correction amount, and to be able to reflect the position when carrying the electronic component
The mode of correcting value carries out feedback control to the electro part carrying device.
It wherein, can be in the viewpoint of each region for the substrate and for the suction in the control process
At least one viewpoint in the viewpoint of each rotation angle of nozzle component calculates the position correction amount.
According to electronic component mounting system and electronic component attaching method based on an aspect of of the present present invention, by applying X
Ray examination and the position of measuring electrode and the position of convex block, and in order to the position both reduced is deviateed and to electro part carrying
Device (electro part carrying process) carries out feedback control, therefore can accurately check the carrying quality of tab feature, and energy
Enough realize the maintenance or improvement of the carrying quality.
Specific embodiment
Hereinafter, being described in detail referring to attached drawing to according to the present invention of preferred embodiment.Also, this specification with
And in attached drawing, identical reference numeral is used for the constituent element of substantial composition having the same, and omit duplicate theory
It is bright.
Fig. 1 is the system pie graph for showing the electronic component mounting system of an implementation form according to the present invention.Referring to figure
1, electronic component mounting system is by filling electro part carrying device 1, x-ray check device 2, reflux unit 3 and visual examination
It sets 4 these each device connections and is formed, and each device is connected to each other by communication network 5, and electronic component pastes
Dress system integrally has the composition controlled by the management computer 6 as control unit.
Hereinafter, will be by illustrating the composition and function of each device, and to the electronic component mounting system based on Fig. 1
Electronic component attaching method is illustrated.
Electro part carrying device 1 executes electro part carrying process.That is, electro part carrying device 1 will be formed in it is convex
The positive convex block of block part overlaps the electronic component engagement electrode for being formed in substrate, to carry tab feature.
As schematically shown in Fig. 2, in this embodiment, electro part carrying device 1 has boarded head 1a and use
In the XY mobile mechanism for moving the boarded head along the direction XY.
Also, in Fig. 2, although it is not shown, still rotatable in the axis for riding over a 1a in boarded head 1a
Ground is equipped with single line or multi-thread mouthpiece part, and picks up tab feature from the supply department of tab feature by the mouthpiece part
And it is carried to the electrode of substrate.Also, the usual mouthpiece part includes the main shaft (spindle) for being rotatably mounted in boarded head
They are referred to as mouthpiece part in the present invention with the suction nozzle main body for the front end for being removably mountable to the main shaft.
X-ray check device 2 executes x-ray inspection operation, and x-ray check device 2 is set to electro part carrying device 1 and reflux
Between device 3, and measure carry electronic component after substrate on electrode position and convex block position.
It is as follows if being illustrated referring to function of the Fig. 3 to the x-ray check device 2 of this implementation form.
As shown in (a) of Fig. 3, x-ray check device 2 from the back side exposure of the tab feature 11 for being equipped on substrate 10,
To which measurement is formed in the position of the position of the electrode 10a of substrate 10 and the convex block 11a of tab feature 11.
In (b) of Fig. 3, it is schematically shown the measurement result of the position of electrode 10a;In (b) of Fig. 3, schematically
Ground shows the measurement result of convex block 11a;In (d) of Fig. 3, it is schematically shown the measurement knot for being overlapped (b) and (c) of Fig. 3
Fruit.As described above, according to x-ray check device 2, can for the substrate 10 equipped with tab feature 11 and (b) such as Fig. 3 and
(c) position of electrode 10a and the position of convex block 11a are separately measured shown in, and can also be such as (d) institute of Fig. 3
It by the position of electrode 10a and the position of convex block 11a while measuring with showing.Here, the reference numeral 11b in (a) of Fig. 3 is to include
The grafting material of solder, scaling powder for engaging electrode 10a and convex block 11a etc., and be in advance in electro part carrying
The grafting material that convex block 11a is attached at by deep processing etc. in a upper process for device 1 and is formed.
It manages computer 6 and executes the control process for carrying out feedback control to electro part carrying device 1, to reduce by x-ray
Deviate (hereinafter, claiming the position between the two that the position of electrode 10a and the position of convex block 11a measured by check device 2 obtain
Be " position deviation ").
Specifically, in this embodiment, managing the feedback-control electronic part carrying device as follows of computer 6
1: the position school in the direction XY for calculating boarded head 1a when carrying electronic component (referring to Fig. 2) to reduce the position deviation
Positive quantity (hereinafter, being referred to as " correcting value "), and reflect the correcting value when carrying electronic component.
More specifically, management computer 6 can be directed to each region of substrate and be rotatably mounted in boarded head
The correcting value is calculated in the viewpoints such as each rotation angle of the mouthpiece part of 1a.Above-mentioned correcting value can be by " substrate
Each region ", " each rotation angle of mouthpiece part " viewpoint on to scheduled quantity (for example, for adjacent side
100 pieces of substrates) x-ray check device 2 measured by the runout information (data) carry out statistical procedures and obtain.
Fig. 4 schematically shows the calculating of each rotation angle amount of being corrected for mouthpiece part, and according to the school
Positive quantity and to electro part carrying device 1 carry out feedback control method.
That is, in the case where mouthpiece part is multiple, if by the rotation angle of the mouthpiece part (for example, 0,90,180,
270) it is associated with " position deviation " and carries out statistical procedures, then as shown in figure 4, there is the rotation angles of each mouthpiece part
The tendency of corresponding " position deviation " situation different from each other (Fig. 4 is shown for a mouthpiece part).
For example, mouthpiece part is with rotation and on a left side if the axis of mouthpiece part deviates from vertical direction and tilts
It is shaken in right direction, therefore there is its positions to deviate according to each rotation angle without same situation.In the case, it manages
Computer 6 for mouthpiece part each rotation angle calculation correcting value (in this embodiment, the correcting value be carry electronics
The position correction amount of the boarded head on the direction XY when component), and feedback-control electronic part carrying device 1, with can be
It is reflected to the correcting value in each rotation angle of mouthpiece part.By above-mentioned method,
" the position deviation " of each rotation angle of mouthpiece part can be reduced.
Fig. 5 schematically shows the calculating of each region amount of being corrected for substrate, and right according to the correcting value
The method of the progress feedback control of electro part carrying device 1.
That is, if substrate to be virtually divided into multiple regions 1,2,3,4, and be multiple situations in mouthpiece part
Under, it is mouthpiece part is respectively associated with " the position deviation " in opposing substrate region and carry out statistical procedures, then such as Fig. 5 institute
Show, there is the different situations of the tendency of " the position deviation " in each region of substrate.
For example, X-direction crossbeam (beam) 1b of electro part carrying device as shown in Figure 2 if there is deformation or it is curved
Song, then depositing the respectively different situation of the tendency of " position deviation " corresponding to each region of substrate, (Fig. 5 is for a suction
Nozzle component is shown).In the case, management computer 6 is directed to the mouthpiece part, calculates in each region of substrate
Correcting value, and the feedback-control electronic in a manner of making the correcting value be able to reflect each region of substrate when carrying electronic component
Part carrying device 1.Accordingly, the whole region of substrate can be reduced " position deviation ", and closer to 0.
Also, pass through the correcting value of " for each rotation angle of mouthpiece part " that will be shown in FIG. 4 and in Fig. 5
The correcting value of " for each region of substrate " for showing combines, so that the deviation of " for each rotation angle of mouthpiece part "
The deviation of " for each region of substrate " is all reduced, and the absolute value that the position of each mouthpiece part can be made to deviate connects
Nearly 0.Also, as described above, Fig. 4 and Fig. 5 indicates that tendency is deviateed in the position for a mouthpiece part, and it is in mouthpiece part
In the case where multiple, position as shown in Figure 4 and Figure 5 is obtained for each mouthpiece part and deviates tendency, and in this situation
Under, each correcting value is calculated for each mouthpiece part and carries out feedback control.
Here, management computer 6 monitors the lasting variation that position is deviateed, and it can deviate in position and increase with lasting
It is sounded an alarm in the case where the tendency added, or police can also be issued in the case where it is more than scheduled management value that position, which is deviateed,
Report.
Fig. 1 is returned to, the substrate after 3 pairs of reflux unit carrying electronic components heats, thus by electronic component (convex block portion
Part) convex block be joined to the electrode of substrate.And appearance inspection device 4 checks the electronic component on the substrate after being engaged
The mounted state of (tab feature).Mounted substrate is manufactured by method as described above.
It can be learnt from the explanation of above implementation form, according to the present invention, by applying x-ray inspection measuring electrode
Position and convex block position, and by reduce both position deviate in a manner of to electro part carrying device, (electronic component is taken
Carry process) feedback control is carried out, so as to accurately check the carrying quality of tab feature, and it can be realized the carrying quality
Holding or improvement.
Also, in above implementation form, describe from " for each region of substrate ", " for each of mouthpiece part
The example of the correcting value using feedback control is calculated in the viewpoint of a rotation angle ", still, for example, being multiple in boarded head
In the case of, correcting value can also be calculated in another viewpoint of " being directed to each boarded head ".
Embodiment of an aspect of of the present present invention referenced in schematic in attached drawing and be illustrated, but this is only exemplary
, as long as the people with basic knowledge is then it is understood that multiplicity can be realized by these embodiments in this technical field
Deformation and equivalent other embodiments.Therefore, real protection scope of the invention should be according to the appended claims
Range determines.
Industrial availability
According to an aspect of the present invention, the present invention is applicable to production electronic component mounting system or applying electronic portion
In the industry of part attaching method.