JP3139739B2 - Pin correction device for wiring board and method for manufacturing wiring board using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a semiconductor integrated circuit.
A pin correction for correcting a bending of a pin on a wiring board, such as a ceramic or plastic package, on which (IC) is mounted, and on which a large number of pins serving as external terminals are implanted on one surface thereof. The present invention relates to an apparatus and a method for manufacturing a wiring board using the same.

[0002]

2. Description of the Related Art On a wiring board, several tens to several hundreds of pins are planted at predetermined positions in a lattice or staggered pattern, and each of them is connected to an external printed board so as to be able to conduct electricity. You. By the way, if each pin is not implanted perpendicularly to the wiring board main body, electricity is not supplied to the circuit on the printed board side. Therefore, a pin that is obliquely implanted from the wiring board main body or bent from the middle corrects the bent at the time of inspection or the like. The following jigs are used for such correction. For example, as shown in FIG.
No. 02, the pin P of the wiring board W is inserted into each hole 102, and the pin is manually corrected by using the straightening plate 100 (Japanese Utility Model Laid-Open No. 6-50359, 62-8213).
5) and a plurality of ribs 114 as shown in FIGS. 6 (B1) and 6 (B2).
Are arranged in parallel with each other, and pins P of the wiring board W are inserted between the respective ribs 114 to swing the blocks 110 and 112 in directions opposite to each other. (JP-A-2-275658) and the like have been proposed.

However, in the manual correction using the above-mentioned correction plate, the quality and productivity tend to vary depending on the skill of the operator, and in some cases, the pin surface may be damaged. On the other hand, in straightening using a plurality of blocks, it is necessary to replace with a plurality of blocks provided with ribs that match the array pattern in order to correspond to the array pattern of a large number of pins for each type of wiring board. It was not suitable.

[0004]

SUMMARY OF THE INVENTION The present invention solves the above-mentioned problems of the prior art, corrects and automates the correction of pins on a wiring board, improves productivity, and does not damage the surface of the pins. It is an object to provide a pin straightening device capable of straightening as described above and a method of manufacturing a wiring board using the same.

[0005]

According to the present invention, in order to solve the above-mentioned problems, each pin of a wiring board is inserted into each guide hole of a perforated plate having a large number of guide holes, and the wiring board is placed on a surface on which the pins are provided. This is obtained by conceiving that the perforated plate is moved in parallel along a substantially circular locus in the direction along the pin planting surface while being held movably in the direction along. In other words, the pin correcting device for a wiring board according to the present invention includes a holding means for holding a wiring board having a large number of pins implanted on its surface so as to be movable in a direction along the pin-implanting surface; A perforated plate having a large number of possible guide holes, and a circular motion means for translating the perforated plate with each pin inserted into each of the guide holes along a substantially circular locus in a direction along the pin planting surface. When, with the said holding means is in contact with the wiring board, and a contact portion that movably abuts the wiring board while maintaining the abutment in a direction along said pins planted設面, this abutment a biasing unit that parts against <br/> the wiring board to be abutted against the resiliently biased, and wherein the. According to the above, the abutment rollers resiliently contacting the wiring board, while movably held along the circuit board on the pin planted設面direction, since the perforated plate is circular movement In addition, each guide hole of the perforated plate rotates the peripheral surface of the majority of normal pins, and can reliably correct only the bent pin in the original vertical direction without damaging it.

Further, the circular motion means comprises a drive source for generating a torque, a motion conversion mechanism for converting the torque of the driving source to the movement of translation of the substantially circular trajectory, the pin correction device Is also included. Furthermore, two sets of sliders, wherein the movement conversion mechanism regulates the movement of the perforated plate in two axial directions parallel to and perpendicular to the direction along the pin planting surface, and this perforated plate or two sets of sliders A hole or a shaft provided in connection with any of the sets, and a convex or concave portion rotatably fitted to the hole or the shaft are provided eccentrically with respect to its own rotation center, and the drive having a rotating body which is rotated by the source, including pin correction device. According to the above, while the wiring board is movably held in the direction of the pin planting surface, each pin can be made perpendicular to the board body by moving along the circular locus of each guide hole of the perforated plate. .

A guide hole of the perforated plate has a substantially frustoconical guide portion extending toward a pin-implanting surface of the wiring board of the perforated plate, and is continuous with the guide portion and has a greater diameter than the guide portion. A pin straightening device having a straightening portion having a small diameter is also included. In this case, the diameter of the straightening part is
Or 1.5 to 2 times the wiring board to the implanted has been the pin diameter, the diameter of the straightening unit, to the center of the projections or recesses provided on the rotary member from the rotation center of the rotary body It is desirable to set the eccentric distance within a range of one third to one half. According to the above, each pin is easily inserted into the guide hole only by moving the wiring board in the axial direction of the pin. In addition, the gap between the pin and the straightening portion is optimized, and the circular motion of each guide hole can be set to an effective range for straightening a bent pin. In addition, when the depth F of the guide portion is set to one half or more of L with respect to the insertion depth L of the pin when the pin is inserted into the perforated plate, the insertion of each pin is further facilitated. be able to.

Further, prior to holding the wiring board by the holding means, there is provided detecting means for detecting whether or not each pin of the wiring board has been inserted into each of the guide holes of the perforated plate. The present invention also includes a pin straightening device, wherein the detecting means has a back surface height measuring means for measuring a height of the wiring board from the guide plate on a back surface of the pin planting surface. According to the above, the pin does not enter the guide hole, or the wiring board having the pin that is difficult to correct by stopping at the truncated cone-shaped guide portion can be automatically detected, for example, by the laser light receiving position, It is easy to discharge the gas to the outside of the line. In addition, the measurement of the back surface height is as follows.
The measurement is performed by measuring at least one or more arbitrary positions including the vicinity of the center of the back surface of the wiring board. Thereby, the position to be detected can be set freely according to the type of the wiring board.

Further, according to the present invention, there is provided a wiring board having a large number of pins implanted on a surface thereof, wherein each pin is inserted into each of the guide holes of a perforated plate having a large number of guide holes into which the respective pins can be inserted. a step of, while the wiring board abuts movably in a direction along said pins planted設面, by abutments provided by the stress to which the contact force is elastically urged to the pin planted設面A step of holding movably in the direction along the perforated plate, and thereafter, moving the perforated plate in which the pins are inserted into the guide holes in parallel with a substantially circular locus in a direction along the pin planting surface, and bending each of the pins. And a pin correcting step of correcting a pin having the following.

According to the manufacturing method described above, in a state where the contact portion of the roller or the like elastically in contact with the wiring board, and movably held along the circuit board on the pin planted設面direction,
The circular movement of the perforated plate makes it possible to automatically and accurately correct a wiring board including a bent pin, and does not damage the surface of the pin, so that a large number of wiring boards can be mass-produced with good quality. Becomes possible.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a schematic longitudinal sectional view of the pin straightening device 1, and FIG.
A wiring board W such as a semiconductor package having a large number of pins P implanted on its (lower surface) can be moved in a direction along a surface on which the pins P are implanted (hereinafter, referred to as a pin implantation surface) in a horizontal posture. Holding means 2 for holding, located below the wiring board W,
A perforated plate 30 having a large number of guide holes 32 into which the respective pins P can be inserted, and a perforated plate 30 supporting the perforated plate 30 and maintaining the horizontal position of the perforated plate 30 so that the guide holes 32 are substantially circular in diameter. And circular motion means 40 for circularly moving in a direction along the pin planting surface so as to move on the locus.
As shown in FIG. 2, the holding means 2 moves a pair of rollers 4 in a diagonal position of the wiring board W, which abut at right angles to the adjacent side surface and move on the side surface in a horizontal direction. A pair of symmetrically mounted arms 10
And a guide 1 having these arms 10 fixed to the base end thereof.
Rail 1 supporting horizontally slidable through 2
6 and an air cylinder 20 that connects the tip of a piston rod 18 to the guide 12 and expands and contracts each rod 18 symmetrically. The cylinder 20 has an inflatable / contractible air chamber sandwiched between opposed pistons (not shown) at the center.

Each of the rollers 4 corresponds to an abutting portion of the present invention, and is vertically supported by a tip of a sliding piece 5 above the roller, and the sliding piece 5 is mounted on a holder 6 having a concave cross section in the front-rear direction. It is movably supported. A bolt 7 extending from an outer angle 9 approaches the rear of the sliding piece 5, and a coil spring 8 wound around the bolt 7 has an angle 9 erected on the rear end of the sliding piece 5 and rearward.
, The rollers 4 are urged inward, respectively. These sliding pieces 5, bolts 7, coil springs 8, and angles 9 constitute an urging portion of the present invention. Therefore, when the wiring board W horizontally sucked by a manipulator or the like having a suction section (not shown) is lowered from above and positioned in a plane surrounded by each roller 4,
By driving the air cylinder 20, the piston rod 1
When the pair of arms 10 approach each other by retreating the wiring board 8, the wiring board W is held in a state in which it can move in the horizontal direction, that is, the direction along the pin-planting surface, while being urged between the rollers 4. Is done.

The perforated plate 30 has a flexible surface such as a bakelite in which a large number of guide holes 32 are vertically formed corresponding to the arrangement positions of a large number of pins P planted on the lower surface of the wiring board W. It is a plate having. Each guide hole 32 is shown in FIG.
As shown in (A), a frusto-conical guide portion 34 having a tapered surface that expands toward the pin planting surface of the wiring board W, and an inner diameter that is continuous with the lower end of the guide portion 34 and is smaller than the guide portion 34. And a cylindrical correction part 36 having the same. Each pin P
Is inserted from the guide portion 34 side, and its tip protrudes below the correction portion 36 as shown in the figure, and its bending is corrected by movement of the correction portion 36 on a circular locus as described later. By the way, for example, when the diameter of the pin P is 0.5 mm,
The inner diameter of the straightening section 36 is about 0.8 mm, and the length of the straightening section 36 is about one third of the guide section 34.
Further, the tapered surface of the guide portion 34 is inclined downward by about 70 degrees. In addition, the straightening part 36 is not limited to the through hole as long as the pin P can be inserted. The lower end may be closed, and in the case of the through hole, the pin P is inserted halfway. Is also good.

Further, the circular motion means 40 is composed of a motor 44 vertically mounted on a plate 43 projecting laterally from a substantially prismatic frame 42 shown in FIG. 1, and the following motion conversion mechanism. This mechanism includes a timing belt 54 laid between a pulley 46 fixed to the shaft of the motor 44 and a pulley 52 at the lower end of a rotating shaft 50 rotatably supported vertically at the center of the frame 42 via a bearing 48. When,
A cylindrical convex portion 56 fixed to the upper end of the rotary shaft 50 at a position eccentric to the central axis of the rotary shaft 50 by several millimeters in a horizontal direction, and a bearing 58 is provided around the convex portion 56. A rotating body 62 having a downward circular hole 60 into which the projection 56 is fitted is included. The rotating body 62 is fixed to the lower surface at the center of a support plate 64 that detachably supports the perforated plate 30, and the four circumferences of the support plate 64 have two sets of sliders 66, It is supported by the upper end of the frame 42 via 67.

Therefore, the perforated plate 30 is kept in the same posture as the supporting plate 64 by the convex portion 56 eccentrically rotated by the rotating shaft 50 rotated by the driving of the motor 44.
The parallel movement of the pair of sliders 66 and 67 along the longitudinal direction is allowed, but the torsion torque by the rotating shaft 50 is not received.
Each of the sliders 66 and 67 is composed of a number of balls 68 arranged in a straight line and a pair of upper and lower elongated concave plates 69 covering the upper and lower spherical surfaces, and each pair is arranged in parallel. An intermediate portion where the sliders 66 and 67 are in contact with each other is a rectangular frame-shaped integral body that is joined to each other at a corner, but is separately regulated so as not to separate from the outside of the frame 42. . These sliders 6
6, 67 are also included in the motion conversion means.

Accordingly, when the motor 44 is driven and the rotary shaft 50 is rotated via the belt 54, the guide holes 32 are substantially the same while the perforated plate 30 is kept horizontal by the eccentric rotation of the projection 56. Performs a revolving parallel movement that moves on a circular locus of diameter. Then, the wiring substrate W movably held between the rollers 4 of the holding means 2 in a horizontal posture.
Receives the circular motion about the respective guide holes 32 of the perforated plate 30 in a state where the respective pins P on the surface thereof are inserted into the respective guide holes 32, and corrects the bent pins P as described later. I do. Prior to the holding, a wiring board W having pins P which are difficult to correct, as described later, is shown above FIG.
Detecting means for irradiating a laser beam near the center of the back surface (upper surface) of the wiring board W and receiving the reflected light to detect whether or not the wiring board W can be corrected by the light receiving position. The laser device 70 is set.

Next, a state in which the wiring board W is sandwiched between the rollers 4 of the holding means 2 will be described. As shown in FIG. 3A, when the normal pins P implanted perpendicularly to the wiring board W are inserted into the guide holes 32, the corrective portions 36 are formed.
Is set to a concentric position with On the other hand, as shown in FIG. 3B, the pin P implanted with a slight bend in the wiring board W initially has its lower end along the tapered surface of the guide portion 34 of the guide hole 32. After being guided downward, it comes into contact with the inner peripheral surface of the correction unit 36. In such a state, each wiring board W is held between the rollers 4 urged inward. On the other hand, as shown in FIG.
The pins P bent to some extent with respect to the wiring board W stop in the guide portions 34 of the guide holes 32, and the wiring board W including the pins P is not inserted any more below. Therefore, such a wiring board W is excluded because it is difficult to correct the wiring board W in the correction apparatus 1. In order to detect such a wiring board, the laser device 70 is used as described later.

Incidentally, the conventional correction plate 1 shown in FIG.
In the case of manual correction at 00, the bent pin P
Is forced into the mortar-shaped hole 102 by the operator, so that the gold plating covering the surface of the pin P may be peeled off or the pin P itself may be damaged. In contrast,
In the present device 1, as described above, the use of the truncated conical guide hole 32 into which the pin P can be easily inserted eliminates the wiring board W having the pin P bent more than a certain amount. Injury is eliminated. In addition, such a sorting operation also leads to improving the efficiency of the entire correction process.

Next, the correcting action will be described with reference to FIG. FIG. 3A shows that the guide hole 3
2 shows a state in which the second correction section 36 moves in a circular motion, and the correction section 36 performs a revolving motion of moving on a circular locus having substantially the same diameter by the parallel movement of the perforated plate 30 with respect to the peripheral surface of the pin P. . In this case, the correction unit 36 moves as shown by the arrow while contacting the inner peripheral surface thereof with the peripheral surface of the pin P, or moves while pressing the inner peripheral surface thereof against the peripheral surface of the pin P. In the latter case, the normal pins P occupy most of all the pins P on the wiring board W, and therefore move in a circular shape with the movement of the correction unit 36 without being bent. At the same time, the wiring board W
, And is parallelly moved synchronously by the urging of the spring 8.

On the other hand, the bent pin P shown in FIG.
When the straightening portion 36 is located on the side opposite to the bending direction, the straightening portion 36 is pressed in the direction of its central axis as shown in the figure. In addition, since this pressing is almost normal for the other pins P, the perforated plate 30 moves in a circular motion, and the bent pins P are corrected to the original posture perpendicular to the wiring board W. When the diameter of the pin P is 0.5 mm, the inner diameter of the straightening portion 36 is desirably 1.5 to 2 times the range, for example, 0.8 mm. If the ratio is less than 1.5 times, the gap between the straightening portion 36 and the pin P is insufficient, so that a sufficient circular movement cannot be performed. If the ratio exceeds 2 times, the gap becomes excessively large and the correction becomes insufficient. When the inner diameter of the correcting portion 36 is 0.8 mm, the eccentric distance of the convex portion 56 is within a range of 2 to 3 times the same (in other words, the diameter of the correcting portion 36 is 1/3 to 1/3 of the eccentric distance). 1/2), for example, about 2 mm is desirable. If it is less than 2 times and more than 3 times, the circular motion becomes too small or too large, resulting in excessive or insufficient correction effect. By the way, the circular movement of the perforated plate 30 can be achieved by performing the circular movement once or more, and the correction of the normal pin P (length 4 mm diameter × 0.5 mm) is completed in about 2 to 10 times. In addition, since only the correction portion 36 of the perforated plate 30 contacts the pin P while revolving around the orbit, the surface of the pin P to be corrected is not rubbed or damaged.

As shown in FIG. 5, the light emitting section 72 of the laser device 70 applies the wiring board W to the wiring board W having the pins P which are difficult to correct as shown in FIG. The reflection position of the laser beam irradiated on the back surface is higher than that of the wiring substrate W on which the pins P are inserted. Therefore, the reflected laser light reaches a position distant from the normal position in the optical sensor 76 of the light receiving section 74 of the laser device 70, and is detected as the wiring substrate W having the bent pin P. . Such a wiring board W is sucked again by the manipulator and is discharged out of the line. still,
The wiring board W that has completed the above correction is sucked again by the manipulator, and the rollers 4 move back together with the arm 10 to be lifted and sent to the next step. Is set to When correcting the wiring board W having a pattern in which the arrangement of the pins P is different, the perforated plate 30 in which the guide holes are formed corresponding to the arrangement in advance is fixed to the support plate 64. Further, the position of the holding means 2 is adjusted so as to be able to freely contact and separate from the perforated plate 30 according to the length of the pin P.

The present invention is not limited to the above embodiment. The positions of the wiring board and the perforated plate held by the holding means are not limited to being parallel to each other as long as each pin is inserted into each guide hole, and their postures can be set arbitrarily.
In the above embodiment, the wiring board is moved from above the perforated plate to insert each pin into the guide hole. Conversely, the board is held at a predetermined position, and the perforated plate side is moved to move the guide hole. It is also possible to insert a pin therein. Further, the contact portion in the holding means, a contact piece or a ball having a curved surface or a hemispherical surface instead of the roller,
Further, the urging portion may be a leaf spring, a rubber piece, or a synthetic resin piece having elasticity instead of the coil spring. For example, the leaf spring itself may be brought into direct contact with the side surface of the wiring board so as to be in surface contact, and the contact portion and the urging portion may be used. Further, it is sufficient that at least two contact portions are provided symmetrically with respect to the wiring board.

The rotating body in the motion converting mechanism of the circular motion means may be fixed to the perforated plate itself or any one of two sets of sliders. The fixing position may be any position other than near the center of the perforated plate or the like. Alternatively, a shaft may be provided on the perforated plate side, and a concave portion may be provided on the rotating body side for fitting the shaft at an eccentric position. The horizontal cross-sectional shape on the fitting side of the eccentrically provided projection or recess may be elliptical or oval in accordance with the bending tendency of the pin, in addition to the circular shape. Further, the material of the perforated plate may be bakelite or other calcified resin, or a thermosetting resin such as phenol, melamine, or epoxy.
The guide portion of the guide hole of the perforated plate is not limited to a tapered surface with a constant inclination, or a conically tapered surface with a gentle curve,
The straightening section may also have a drum-shaped inner peripheral surface that curves slightly inward.

The detecting means for detecting whether or not the pins of the wiring board have been inserted into the guide holes uses a photoelectric tube or a photodiode to detect the light reflection position or illuminance difference due to the difference in the height of the back surface of the wiring board. Alternatively, it may be based on a signal from a limit switch that comes into contact depending on the height of the back surface of the wiring board. Further, the image can be captured from the side of the wiring board by a CCD camera or the like, and the height of the back surface of the board and the position of the board can be calculated by image processing. In addition, a wiring board that is symmetrical to correction is a wiring board having various circuits in which a large number of pins are implanted on the surface.
This includes not only the presence or absence of an IC and the position where the IC is mounted, but also all of them.

[0025]

According to the pin straightening device of the present invention described above, each pin of a wiring board such as a semiconductor package can be easily inserted into each guide hole of a perforated plate.
The perforated plate moves circularly while the wiring board is movably held along the direction of the pin planting surface by a contact portion such as a roller that elastically contacts the plate. For this reason, each guide hole of the perforated plate rotates the peripheral surface of the majority of normal pins, and enables the automation of the straightening process of reliably correcting only the bent pin in the original vertical direction, and It can be corrected accurately. Moreover, the bent pin can be reliably and quickly corrected to the original posture without damaging the surface. In particular, according to the fourth to sixth aspects of the present invention, the insertion of the pin can be further reliably performed, and the pin can be appropriately corrected. Claims 7 and 8
According to the invention, it is possible to quickly detect a wiring board in which it is difficult to insert a pin, and to prevent damage to the pin and damage to the perforated plate due to excessive correction. In addition, according to the invention of claim 9, the abutment rollers resiliently contacting the wiring board, while movably held along the circuit board on the pin planted設面direction, porosity By the circular motion of the plate,
The wiring board including the bent pin can be automatically and accurately corrected, and the surface of the pin is not damaged. Therefore,
Since the efficiency of the whole work of correcting a large number of wiring boards can be improved and the automation thereof can be facilitated, the productivity of the wiring boards can be improved.

[Brief description of the drawings]

FIG. 1 is a schematic longitudinal sectional view of a pin straightening device of the present invention.

FIG. 2 is an exploded perspective view of the pin straightening device of the present invention.

FIGS. 3A and 3B are schematic longitudinal sectional views showing a state where pins of a wiring board are inserted into guide holes of a perforated plate, and FIG. 3C is a state where pins are not inserted.

FIGS. 4A and 4B are schematic plan views showing a state where a pin is corrected.

FIG. 5 is a schematic view showing a detecting means in the pin straightening device of the present invention.

FIGS. 6A, 6B, and 6B are schematic diagrams showing a correction jig according to the related art.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Pin straightening device 2 ... Holding means 4 ... Roller (contact part) 5 ... Sliding piece (biasing part) 7 ... Bolt (Biasing part) 8 Coil spring (Biasing part) 9 Angle (Biasing part) 30 Perforated plate 32 Guide hole 34 Guide part 36 correction part 40 circular motion means 44 motor 50 rotating shaft 56 convex part 60 hole 62 rotating body 66 , 67 Slider 70 Laser device (detection means) W Wiring board P Pin

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-60-15997 (JP, A) JP-A-3-136357 (JP, A) JP-A-2-81500 (JP, A) JP-A-62 274646 (JP, A) Hikaru 2-70831 (JP, U) (58) Field surveyed (Int. Cl. ⁷ , DB name) H01L 23/50 H05K 13/04

Claims (9)

(57) [Claims] 1. A holding means for holding a wiring board having a large number of pins implanted on its surface so as to be movable in a direction along the pin installation surface, and a large number of guide holes into which the pins can be inserted. A perforated plate comprising: a perforated plate; and a circular motion means for translating the perforated plate in which each pin is inserted into each of the guide holes in a substantially circular locus in a direction along the pin planting surface; abuts on the wiring board, and a wiring board while maintaining abutment movably in a direction along said pins planted設面abutment portion abutting, wiring base that contacts the contact portion
A biasing unit for elastically urged against the plate, the pin correction device wiring board, characterized in that. 2. The driving device according to claim 1, wherein said circular motion means is provided between said driving source and said perforated plate to generate torque. having a motion converting mechanism for converting the movement of the moving pin correction device circuit board according to claim 1, characterized in that. 3. The slider according to claim 2, wherein the movement conversion mechanism regulates the movement of the perforated plate in two axial directions parallel to and perpendicular to the direction along the pin planting surface. A hole or a shaft provided in connection with any of the sets of sliders, and a convex or concave portion rotatably fitted to the hole or the shaft is provided eccentrically with respect to its own rotation center, The pin correction device for a wiring board according to claim 2 , further comprising: a rotating body rotated by the driving source. 4. A guide portion of the perforated plate, the guide portion having a substantially truncated cone shape extending toward a pin planting surface of the wiring board of the perforated plate; having a straightening portion having a small diameter, the pin correction device circuit board according to claim 1乃<br/> optimum 3, characterized in that. 5. The diameter of the straightening portion is 1.5 to 2 times the diameter of the pin implanted in the wiring board .
The pin correction device for a semiconductor package according to claim 4 , wherein 6. The eccentric distance from the center of rotation of the rotator to the center of the convex or concave portion provided on the rotator, wherein the diameter of the straightening portion is in the range of one third to one half of the eccentric distance. pin correction device circuit board according to claim 4 or 5, characterized in. 7. A detecting means for detecting whether or not each pin implanted in the wiring board is inserted into each of the guide holes of the perforated plate before holding the wiring board by the holding means. the a, that pin correction device circuit board according to claim 1, wherein the. Wherein said detecting means comprises a back surface height measuring means for measuring the height from the guide plate on the back surface of said pin planted設面of the wiring board, it in claim 7, wherein A pin straightening device for a wiring board according to the above. 9. A step of inserting each pin into each guide hole of a perforated plate having a plurality of guide holes into which pins can be inserted, wherein the wiring board has a large number of pins implanted on its surface. while the wiring board abuts movably in a direction along said pins planted設面, by abutments provided by the stress to which the contact force is resiliently biased, movable in a direction along its pin planted設面And a step of holding the hole as possible, and thereafter, the perforated plate having the pin inserted into the guide hole is translated in a substantially circular locus in a direction along the pin planting surface, and a pin having a bend among the pins is formed. A method for manufacturing a wiring board, comprising a step of correcting a pin.