TW200825370A - Method for measurement of straightness of metallic wire and measuring equipment of same - Google Patents

Abstract

To provide method for measurement of straightness of metallic fine wire and measuring Equipment of same. A sample wire is hanged down, a photograph of the wire is taken from vertical direction to hanged down direction, degree of meander can be evaluated by the curve calculated from image of photograph taken, dividing the curve into 2 to 25 times length section of loop length. It is acknowledged that bend of wire relating to leaning defect, as meander width from distance of parallel lines around curve, though wavy bend of long cycle with expanded meander width does not affect leaning, bend of small curvature radius, which affects leaning, is relating to loop length, it can be recognized as meander width at above-mentioned section. Section of sample wire photograph, corresponded to accuracy of apparatus, should be divided into length direction; it is evaluated as continuous curve by processing as digital data, which are expanded to width direction.

Description

200825370 IX. Description of the invention: [Technical field of invention] The method for measuring the trueness of the metal thin wire processed by the wire used for the ends of the thin wire of each length Measure the mounting, setting, and wire diameter at 0. 007~〇. i coffee, especially 〇. 〇15~ Please measure the trueness of the thin metal wire in the range of 5 faces and measure the agricultural setting. [Prior Art] • * A thin metal wire which has been subjected to wire drawing for a long time is wound on a reel and stretched and used to be cut into a fixed length for use. The thin metal wire that is handled by this lion state has the lead of the electrical component as the lead of the detector, the bead wire of the automobile tire, and the welding (voltage) wiring for the semiconductor device, for example, for connecting electronic components, f-channel components or A bump welding line or a glow (voltage) wiring for a circuit board is an extremely common form. Such metal thin wires have AU, Ag, w, depending on their use.

Metals such as Pt, A, Cu, Fe, Ni, Pb, Sn, w, or the like are used as the alloy of the main component #, and these ingots are continuously drawn by a thick line into a thin line. The wire is twisted and X is added, and if necessary, heat treated before, during, and after the stretching line. The serpentine shape of such a thin metal wire can be easily measured by a method of visually dropping a thin metal wire (Japanese Patent Laid-Open (10)), and as a result, there is a thin metal wire such as a snake. Poor sex, it is easier to form defective products. However, in the case of visual observation, there is dispersion in the measured value due to personal differences, etc., and there is a quantitative estimation. @这,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, , and _ 咏 尔 尔 reading η日 sheΓ

In Japanese Patent Laid-Open Publication No. 86174 (Patent Document 2), the secret method of Patent Document F1 is disclosed, "When the metal thin line is dropped, the county is made up of the metal thin wire itself" (middle omitted) to be deformed. The metal wire has a serpentine shape which is difficult (Patent Document 2, No. 3). The reason is to "make at least one end of the thin metal wire appear on the floating end of the metal wire to form the aforementioned fine metal wire on the surface of the Weili body. The shape scale evaluation, the straightness of the thin metal wire (Patent Document 2, brother 5 is bad) § flat evaluation method and device. This evaluation device is a three-dimensional metal wire shape and the dimension of the image is more suitable It is a continuous line drawn by a thin metal wire to connect the sidetrack (4) to record the U-family curve and discriminate. The result of the evaluation by the evaluation device and the measurement result when visually can be greatly The dispersibility of the measurement of the trueness is suppressed. (Refer to the examples 5 and 6 of Table 1 on page 5 of the same publication, and the comparative example 2 of the HM2 series.) Patent Document 1 - Japanese Patent Laid-Open Publication No. 2002-124534 2: Japan Special Open 2006-86174 However, even if there is a measurement method by such a straightness evaluation device, the following problems remain. First, the case of Patent Document 1 will be explained. Since the thin metal wire is thinner, it will be in the form of 200825370. The phenomenon of chaotic reflections continues to be difficult to obtain a uniform contrasting shot image. Therefore, the image of the thin metal line is not able to face the background part, and metal errors often occur in the production of snakes. Especially the thin metal wire is more variable in diameter. It is difficult to see the line _, more often than the other 'even if the crane is good and evenly shot ^, in the production of the snake curve 'in the metal thin line and the background part, the degree of soil 2 (picture)) For example, when a camera with a length of 3 Gcm (cm) is used with a camera of 4.75 million primitives (vertical (four) pixx horizontal!, _pix), the measurement accuracy of the camera is Ain/pix', and the maximum error occurs due to the above error. When the change is made, the error of 480/zm occurs. Moreover, the difference between the straightness of the metal thin wire which is continuously drawn is small, because the comparison is The width of the snake line to be judged is almost 1 () _ by (10) difference, and the higher the truth value is, the more difficult it is to confirm the size of the meandering on the monitor screen. Next, Patent Document 2 is disclosed. The embodiment shows a pure water filled liquid holding container, even if it is intended to float a gold wire having a diameter of 18 eggs and a length of 35 inches, after all, the gold wire taken out from the coil and the threader will exhibit a three-dimensional snake line. Therefore, it is difficult to float on the one-dimensional horizontal plane. That is, the gold wire can be floated, and the surface tension can cause the gold wire to be sucked into the side wall of the liquid holding container, and the image device is intended to be maintained. The gold wire has difficulty in the specified direction and position, and it is not suitable for use in the manufacturing site. Moreover, since the ends are cut, the stress at the time of cutting is due to the amount of bending of the end of the gold wire ( Refer to Patent Document 2, No. 21). It is necessary to determine the curvature of the 200825370 volume when cutting or to determine the authenticity of the gold wire itself. As described above, the methods of measuring green or the evaluation method in Patent Documents 1 and 2 avoid the error caused by the measurement conditions. t, that is, the silk 日本 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ In the middle, it becomes a shape that cannot be formed, that is, a situation in which a defective product is formed. In particular, in the case of a soldering wire of a semiconductor device, in a semiconductor device having a connection position of several hundred to several marks, a defect in one position causes all other connection positions to become incapable, thereby becoming a fatal defect. . This kind of defect is called the welding line f curve or leveling (1) ning). Even if the metal thin wire with a small width is generated, the measurement method or evaluation method so far cannot cut the metal thin wire. The joint is good or not. Specifically, the leveling defect is after the wire zinc ball of the bonding wire is bonded to the A1 pad of the semiconductor wafer and the first crimping (bQnd) is formed, and the welding (pressure) is extracted by a capillary crimping tool (capillary). Wiring and drawing the coil shape and the irregularity of the welding (pressure) wiring generated at the root of the first crimping. This kind of flattening is caused by the proximity of the adjacent weld (pressure) joints (4). In recent years, the pitch interval has been sharply narrowed from _πι to the center m, and the spacing between the 'glow (voltage) wiring and the fresh (pressure) wiring has become narrower with fine pitch. Therefore, the interval between the hui (voltage) wiring and the welding (pressure) wiring is wider _, a little tilt is not wrinkled 8 200825370 flat bad, opposite, welding (10)) wiring and welding (4) wiring is gradually narrow (four) results 'make _ Customized materials are increasing. ‘However, with the increase in the integrated circuit of the integrated circuit in recent years, the thinning of the fine-pitched (welded) wiring is also carried out simultaneously. The fine (pressure) wiring is also thinned to 15_ by 30, as the fine pitch spacing is performed by the narrow pitch of the (10) syllabic to the fine pitch of 35 (10). As a result, the countermeasure against flatness is an extremely important issue in terms of such extremely thin lines. φ [ 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明 发明A method for determining the trueness of a wire processed metal wire. SUMMARY OF THE INVENTION An object of the present invention is to provide a method for measuring the effective straightness which can be distinguished from the degree of serpentine which is a cause of poor flatness and the degree of serpentine which does not cause the cause. The object of the present invention is to measure the degree of serpentine in three-dimensional deformation in a unique two-dimensional manner, and to solve the problem that the diameter of the metal thin wire and the width of the meandering width are extremely small and cannot sufficiently correspond to the image for reading the image. The accuracy of the optical machine. Further, the object of the present invention is to provide a practical measuring device which is more cost-effective and highly accurate than the conventional measuring device which achieves the above-mentioned problems. The invention is a thief method for the straightness of a metal thin wire, and the ship is a fine line of the hanging gold 200825370 and photographs the thin metal line from the vertical direction, and reads the captured image as the public data 'by the image to obtain the hypothetical financial line and convert Forming a two-dimensional continuous meandering curve, and measuring the area of the two-dimensional curve to a majority of 2 to 25 times the length of the wire loop when the welding (pressure) wire is joined to distinguish the Each interval of the two-dimensional curve of the two-dimensional curve evaluates the trueness of the line. The present invention is a method for determining the trueness of a metal thin wire, characterized in that the majority of the intervals are 5 or more intervals, and the size of the snake width according to each of the intervals is #, and the health is measured by half to one tenth of Jun. Counting the value of the curve, and evaluating the trueness of the thin metal line by the distance between the parallel lines of the curve of the metal thin line between the above-mentioned dragon sections, and processing the above-mentioned captured image as 2 data. When converting into a two-dimensional curve, the processing is enlarged in the wide direction, and by using the pre-amplified image, the error at the time of conversion into a two-dimensional curve is reduced, Φ is 015-0· 〇 25 mm with the above-mentioned thin metal wire The wire diameter is characterized by maintaining the continuity of the curve by the distinction between the two-dimensional curve and the adjacent interval, thereby improving the measurement accuracy. Further, the present invention is a measuring device for the straightness of a metal wire for bonding wire bonding which is subjected to pre-wire processing, and is characterized in that (a) a guide ring inserted through a thin metal wire suspended from the reel and positioned (b) A photographing method for photographing the vertical direction of the metal thin line in a vertical direction, and 200825370 (C) only widening the two-dimensional snake image of the photographed image in the wide direction to distinguish between 2 to 25 times the length of the sharp connection. A two-dimensional curve obtained by taking the center line thereof is obtained, and each of the differentiated two-dimensional curves is parallel to the center line of the slanting line, and the line of the two-dimensional curve is drawn, and the parallel line is obtained. The distance processing device is configured to perform a thin metal wire on the metal thin wire by providing (four) light illumination to reduce the influence of the illuminating light.

The present invention is applied to a knot line by welding wire welding, etc., by correctly arbitrarily arranging to be equal to half of the miscellaneous, and 料 料 material, and can reliably remove the thin metal wire which becomes a bad leveling, _ can not be married The flattening of the tempering gold m level #乂大 appears' can be effectively responded to the need to improve the high degree of straightness. Or the burden of image analysis 'making it cheaper to take advantage of the cheaper shooting time, etc., and it is possible to reduce the equipment and make the processing easier. [Embodiment] In the welding wire welding scale of the present invention The arc length of the arc is 1 and the length of the curve is 2 to 25 times the length of the curve. The true straightness of the thin metal wire gives the snake of the influence of the equalization of 200825370, which is not a spanned arc-shaped connecting line, but is made up of a smaller scale and has a larger curvature. This relationship is expressed in terms of patterns. When the buckling is open, the formula indicates that the metal is fine. The measurement of the length _ the length of the opening - the dog' is roughly the same as the second figure (a) ~ (Comparative: slightly ideal form. α - I) is ^ field __ Show the snakewalker, (4) The small "tumor" of the domain wheel is accompanied by the "婉蜒" or "arc connection line" of Ik. Usually, ^such scale, if _ line width, such as In the case of (7) to (4), the difference in the onset of this inflammation is not present on the measurement, and the same number is obtained in the width of the snake. However, as with the welding line, the length of the knot can be up to 10 mm or less. When the connecting wires are joined, it is determined that the meandering of the (8), (c) "蜿蜒" or "arc connection line" measured between the tens of (10) and the relatively long interval is determined. On the other hand, 'the buckling of the 'tumor shape' with a small radius of curvature when viewed as (d) is so that the rate of change of the buckling is large, so it is shorter. The situation used in the interval greatly indicates the influence, especially in the welding line, if it is stored at the joint In the case of such buckling, for example, the size of the snake is small, and the range is narrow, and the immediate display does not become a bad flatness, and the influence thereof is large. That is, the meandering curve of the snake line ^ V-. '如(d ) The curvature shown is small, and the degree of curvature is small and expressed as "tumor". 12 200825370 The buckling is more important in the assessment of true straightness. However, as in the past, the length of the long measurement 1 is especially Measuring the technique of snake reduction, the biggest _ _ shouting the arc of the curved radius with a large radius of curvature _ line width is the length of its persuasion or fresh _ _ maximum, so by the scale _ or the arc with a larger radius The _ line of the snake line 'g卩 became the largest snake line to be detected by the cockroach.

Therefore, the buckling with the smallest radius of curvature that has the greatest influence on the above-mentioned _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ If the snake line that has the smallest scale radius is equal to the length of the curve corresponding to the curvature to be evaluated and measured, the image of the week/month or curvature that is larger than the interval is discarded. The dumping is detectable with a snake width equivalent to such a small curvature. As for the relationship, the outline of the serpentine technique is measured on the two-dimensional serpentine line which is based on the image of the test piece, and the meandering state of the mold side 2 is shown in Fig. 3. The two-dimensional curves of Fig. 3' are divided into sections of (4), ..., di d3, and the division ranges of these are partially repeated. The thin line with good straightness, which is also small, or the arc-shaped connecting line, is as shown in (a). Even if it is divided into 10 points, the width of the snake is smaller. Bu Ruo (b), (c) The curve is a wrinkled long snake line, 13 200825370 is divided into a ride, and _ is divided into lengths, so that "婉蜒" or The amplitude of the "arc connection" can be eliminated. The period of the "squeaky" or "arc connection", or the smaller the segmentation length, the smaller the radius becomes. Relative to this period of 'buckling' is as short as (4), the radius of curvature is small and short, and the length of the segmentation is longer than that of the county lion or the fresh worm. The appropriate number of sub-ship thieves refers to the length of the thin wire of the metal wire or the welding wire (the length of the welding wire by the capillary crimping (4) welding wire. That is, the welding wire that has been welded is perpendicular to the vertical direction. Even if the plane length of the observation is the same, if the height of the arcuate connecting line becomes high, the length of the arc-shaped connecting line becomes long. The same applies hereinafter, the sampling method of the arc-shaped connecting line with the height of the arc-shaped connecting line, and the like The length of the test piece is not different from that of the sample, but the difference is usually equal to the difference between the fresh metal and the thin wire of the metal wire (4). If the arc connection is 2 to 25 times, the degree is such that The value of a snake with a short radius of curvature is determined to be a large snake line. Riding, if it is 15 times the length of the _ _ _ length, then the practical conditions can be compared directly, it is more appropriate. In addition, the U's respect for the law is the line that obtains the captured image and is processed by the computer. Although the n-dimensional curve is divided into the length of the arc-shaped escape money that has been welded in response to the welding line, the defeat is too complicated. However, by taking a bite as described above, the high-definition image required for measuring the degree of serpentine between the tens of thousands of diameters of the county (4), which is the diameter of her, is determined by the image processing capability of the shooting machine. The accuracy required. //In the following very fine shots of the 200825370 line, since the smaller buckling of the almost straight line can be grasped, the magnified image of the magnified image becomes necessary, but the image is commensurate with the image. The shooting machine of Yuan is more difficult, and the cost burden is also large. Therefore, by obtaining an image which is appropriately divided and captured, and performing data processing, a high-definition image can be obtained, and the burden on the device can be greatly reduced. Second, the captured image is enlarged in the wide direction. Since the influence of the lens aberration is small in the vicinity of the optical axis and is displayed along the radial direction, the original snake line is small in width, and the image of the metal line that is photographed near the optical axis and taken along the radial direction is enlarged only by the wide width. Direction, its impact is also small. Further, the measurement is facilitated by merely enlarging the wide direction and the meandering width of the two-dimensional curve is enlarged. Obtaining the image data thus obtained and converting it into a two-dimensional curve, and as a very thin line of the county of the present invention, the outline of the captured image is relatively unclear due to the diffraction of light or the original image of the image. The deconstantization and its influence make the position of the line unclear, although it is not bad, but by increasing the width direction and making the line L more solid, it can be reduced to the error when it is converted into a two-dimensional curve. rate. The two-dimensional deformation of the thin metal wire is caused by various intricacies in the processing such as wire drawing or heat treatment, and therefore it is generated by the inconsistency of the short curve, and only the month b is grasped. However, if observed along a certain length, the deformations are deformed in various combinations or in the direction of the long axis, and approximately all of them appear. The length of the test piece, specifically, is determined by the degree of === metal thin line, but it is empirically long-term lion's, but if it is about Mon, it is enough. The division of the division is preferably repeated with each other. In the repeated position, each _ tap can be connected to each other. Shinozaki used the final job.

As for the thin metal wire of the object, 〇. 007~0.1 leg' is especially 〇. 015 ～0·025 face line (four) is appropriate. If the wire diameter is thicker than the one surface, the wire itself has a rigid shape. The original wire rod is covered by the rigidity of the wire, and the wire is covered by the rigidity. When it is fine, it is difficult to handle due to extremely thin lines. The following is a detailed description of the coffee and the measurement method. The first picture is a disintegration of the invention of the table, and the No. 7 is a thin metal wire, a 12-series camera, a 13-series & image processing clothes, and a 14-series monitor. 1) is a windshield cover for preventing the influence of airflow, an 11-series observation window, a 3rd wire reel for winding a thin metal wire, and an 18-series guide ring. The thin wire of the metal wire is wound up | The winder 3 of the wound metal wire is rotatably supported on the cover of the 200825370 part, and the thin metal wire is drawn to a specified length and suspended. On the right side of this day, the fine metal wire of these extremely thin wires will be shaken by the influence of the airflow, so it hangs down inside the windshield cover around the thin metal wire and is photographed through the observation window, but through the small office The wire diameter of the miscellaneous guide ring hangs down the thin metal wire to prevent the fine wire from shaking, and at the same time, it can correctly position its position in the center of the field of view of the photographic device. In order to improve the smoothness of the fine metal wires, it is preferable to form a coil of 2 to 3 layers in advance by coating with oxide, oxidized, tungsten carbide or the like. The photographic conditions are clear to obtain a photographic image of a thin metal line, and a relatively large black (four) plane is arranged on the background, and the parallel shooting surface is used to capture a two-dimensional image. At this time, the thin metal wires are directly illuminated by the respective directions and are required to be made into intermittent images which are not caused by shadows or reflected light. In the conventional illumination method, the reflected light from the thin metal wire 7 irradiated by the light source is observable, so that the fineness of the thin metal wire 7 by the fine metal wire 7 causes the dispersion of the fine metal wire 7 to be uniformly dispersed. The overall image is difficult. On the other hand, when the backlight is photographed as a background, the thin metal wires 7 can be observed by blocking the direct light. Therefore, even if there is a fresh material on the thin metal wire 7, since the secret light is not caused by the influence of the diffracted light of the backlight, the thin metal wire 7 can be almost dullly observed. ^ 摄发^置 〇 As for the two-dimensional camera 12, the camera is a digital camera. As for the number of 2008, the 25,25,370 cameras, the "3D digital fine vision VC4500" made by GmiOn Co., Ltd., and the "digital rib micro-view ¥11-7000" manufactured by Japan KEYENCE Co., Ltd. The "1^1fine 116 mess" manufactured by the company, the "5.〇RTV" manufactured by the Publishers, or the "EOS Kiss" series made by the company. The front end portion of the thin metal wire 7 is deformed due to the cutting, so it is preferable to take a metal thin wire at a time interval from the financial position. The measurement range is as described above. Due to the fineness of the Injun County, the metal secrets that have been suspended are recorded as thieves. By distinguishing each of the divided divisions, each of the divisions is connected to each other at the repeated position and can be made continuous. Repeating her in 20~70% is more practical. The image processing device mounts the image captured by the photographing device 12 by the image processing device 13 to store the magnification of the metal thin wire 7 in the direction of the wire, and the lateral magnification is preferably 3 to 3,000 times, for example, up to 10 times. . The magnification of the metal thin wires 7 is in contact with the magnification, and the monitor device 14 is appropriately selected, for example, in a range of 5 mm to 50 mm, and the metal thin wires of 300 to 1000 faces are appropriately selected and enlarged. Binarize the enlarged image. The method of binarization is not only for the discontinuous image of the light and the background of the line and the background of the light, but also by the method of the tumor (thresh〇ld her 6). The metal fine _ stabbed on the wire diameter 7 egg bribe. According to the case where the thin line between the metal thin line and the background 18 200825370 can be binarized, the straight-forward curve can be used to connect the white portion to the error of the age of 2. In order to obtain the skills of such continuous lining, the so-called digital elementary image data is well known. If the software sold at the time can be properly taken, the explanation of the technique is omitted here. The fire is calculated from the binarized image by the computer to obtain the imaginary central curve. Even if the boundary between the outer circumference of the Meng, the, and the field lines and the μ scene is unclear _ 2 valued data, the image of the thin metal line that has been enlarged to the magnification is expressed by a thicker curve, which is not affected by the outer peripheral portion. The effect (slipping discontinuity) allows for a highly accurate smooth center curve. This curve is an imaginary meandering curve. On the other hand, in the case where the lateral magnification is not enlarged, the influence of the non-mixing of the outer peripheral portion can be largely expressed as an imaginary meandering scale, so that the error at the time of binarization cannot be removed. Therefore, it becomes a lens that requires a deeper depth of focus or a software that can perform complex analytic calculations. ^ Ρ ' From the resulting imaginary meandering curve, the enlarged curvature and number of the snake line, the enlarged width of the snake line and the enlarged width of the snake line can be used as parameters to determine the degree of the snake line. The numerical data can be compared with the defects of the metal wires that are pre-bonded during the actual bonding of the bonding wires, for example, due to the microbending of the bonding wires for the semiconductor device or the so-called flatness of the metal wires. bad. As for the thin metal wire 7 of the measurement object, the length is about 10 〇cm, and the wire diameter is 19 200825370 〇· 015~〇· 〇25ffim 'The light length of the measurement target is different but the accuracy is 4: 4 The change of two-dimensional, in the case of a large diameter, it is advisable to set the length of the secret. In the case where the line number is small, even if the length of the thin metal wire 7 is about 30αη, the aspect ratio of the wire diameter is as large as 3χΐ〇4~3χ_degree, and the above-mentioned meandering characteristics can be sufficiently grasped. The fourth figure is to take out the captured image of the thin metal wire as a two-dimensional curve, and then compare the difference between each of the two-dimensional curves into a specified length. • Find a film pattern of the snake width. These division intervals cl to cl6 maintain continuity, and each of them can be repeated for the purpose of improving measurement accuracy. These techniques for measuring the width of snakes have been proposed in various ways, such as the method shown in Figure 5 (a) (b). (a) First, the line above the upper end of the wire connecting the distinguishing sections is taken as the center line, and the two straight lines parallel to the center line are pulled to hold the arc-like curve, and the distance is determined. (b) Or the meandering curve from the interval is obtained by the minimum self-multiplication method from the center line between the zones. The following method can also pull out two parallel lines that hold the meandering curve. Next, perform such operations on each of the intervals, compare the values, and find the maximum value. i The example is a gold (Au) wire bonding wire with a wire diameter of 25 μm and a purity of 99.99 mass% or more as a test line, with a total length of 30 cm as a measurement range, and a two-dimensional curve obtained in the above manner. 0·5cm, 2cm, 5cm, and 15cm are distinguished within the scope of the snake, and each of these faces is divided into _, which is already _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ When measuring, the data of the table is obtained. Here, the serpentine degree is determined by the minimum variance method in each interval, and the two parallel lines are drawn so that the width of the two straight lines parallel to the center line and holding the curve is minimized, and the parallel lines are spaced apart. , snake line width dimension, the unit is face. The measurement of the serpentine degree of the whole two-dimensional curve is to avoid the error caused by the cutting of the fresh wiring, and the distance from the lower end of the welding line is separated from the wrist and the area obtained by the fixed position is 5〇%. In the field of measurement, the degree of serpentine is determined by arbitrarily distinguishing the length of the interval from the mean value of the majority of the snakes. However, if the shorter setting distinguishes the interval, the total amount of data increases. The case where there is a few snakes in the case of '^' is less significant when processed by the average value. From the ./the following #式 scales, all the data are in the order of the higher width of the snake line, and the mean value of only 1/3 is used as the obtained meandering degree. In addition, the degree of serpentine can be used for various considerations, such as dispersibility, etc. If appropriate, the appropriate measurement can be made in the field of measurement (cm): L 'distance interval (five): κ, if repeating u is X 'The number of repetitions in the measurement field L is η, (n-1) 0.5W/2 (n+l)> When the solution is solved right, the number of intervals in the measurement field, 21 200825370 Total number of data (number) ·· n= (L/K) + (LK) /Κ) If the upper level is 1/3 of the data, the following is displayed. The number of valid data (units): In the order of the width of the snake line, {(L/K) + ((L-κ) + ((lK) /Κ)} /3 (pieces) (example) According to the above example, by L = 3Qem, (four) -, the total number of data # (): = (30 / 0.5) + (3 (four). 5) / 〇 5) · = ΐ ΐ 9 (number) The number of valid data: The order of the width of the snake line is 4 〇. • This measurement was repeated W times in this example, and the values of the snakes were larger by five, and the average value thereof is shown in Table 1. 22 200825370 Table i distinguishes the relationship between the width of snakes and the leveling

Number of flattened roots 氺 Distinguish wide 〇. 5cm serpentine (mm) Distinguish between 2cm wide serpentine (_) Distinguish between wide 5cm serpentine (wake) Distinguish between wide 15cm serpentine (painting) 1 0 0.03 0.03 0. 06 0.41 2 1 0.02 0. 03 0.15 0.76 3 1 0.02 0. 04 0.12 0.44 4 0 0. 03 0. 04 0.11 0. 37 5 3 0.06 0.15 0.31 1.09 6 0 0.04 0.05 0.11 0.51 7 1 0. 03 0.06 0.12 0. 66 8 4 0. 05 0.06 0. 22 0. 98 9 2 0.03 0.07 0.21 0.81 10 4 0.06 0.09 0. 29 1.13 11 5 0. 04 0.08 0.15 0. 63 12 3 0. 03 0. 08 0.20 0. 87 13 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0 0. 74 18 7 0. 03 0.11 0. 22 0. 75 19 15 0.06 0.11 0.27 0.83 20 12 0.06 0.12 0. 30 0. 95 _21_^ 15 0.05 0.12 0. 27 0.87 22 10 0.05 0.12 0. 33 1.03 23 24 0. 05 0.13 0. 27 0.91 24 2 0. 05 0.13 0.32 1.27 25 —————— 14 0.06 0.14 0.32 1.13 26 10 0. 05 0.14 0. 38 1.40 27 ------ 27 0. 06 0.15 0.30 1.03 28 24 0. 06 0.15 0.31 1.10 29 18 0. 04 0.14 0,31 0. 97 30 1 5 — 0. 07 0.16 0. 46 1.79 31 22 0. 07 0.17 0. 38 1.28 32 — _26^ 0.07 0,17 0. 37 1.39 *Use the welding device (UTC-400) manufactured by Shinkawa Co., Ltd. When the distance is 53/zm and the welding is 1,500 times, the number of welding lines contacting the adjacent welding lines is counted. 23 200825370 The difference between the interval and the number of the first and sixth graphs is shown in the sixth-1, and the relationship between the first and the first is based on the length of the sixth, with the degree of serpentine and the number of levels of contact on the six-2 graph. .

Numerically, the results of the correlation are shown in Table 2. That is to say, there is a fixed relationship between the serpentine degree and the level of the flatness. Even in the range where the meandering measurement interval is 0·5, 2·5, and 15 cm, the larger the serpentine degree, the worse the snake behavior. _ line degree surface (four) in the vicinity of the arc connecting line length of 2.56 coffee 'known to the material (four) _ meaning (four). In order to measure the value of £2 and the degree of serpentine on the serpentine degree, the correlation between the degree

In other words, it is considered that there is a correlation between the length of the snake and the length of the money, and the change in the interval can confirm that the related tendency changes. Here, the phase relationship (Γ) is expressed as r = Sxy / (Sx.Sy) 1/2 if the number of levels is set to χ and the degree of snake is set to y. Where Sx=Exi2—(Sxi) 2/n,

Sy=Eyi2- (Zyi) 2/n ^

Sxy^Zxiyi^ (Σχΐ) (Syi) /n 〇 In addition, the total number of data in the 0.5on section is set to 24 200825370 119 as described above, and 29, u and 3 at 2cm, 5cm and I5cm. One. As a result, the 'phase number is expressed as ◎, and Q.6 to G7 are expressed as 〇, 0. M). 6 is expressed as Δ, and less than Q. 5 is expressed as - when it is known that the second interval is ◎ The most representative of the relationship between serpentine and leveling, q. ^ and - the district partition _ 〇 good indicates the correlation.

From Table 2, in the case where the welding wire diameter is 25 „ and the arc connecting line length & 67 is ugly, the length of the serpentine section is 2 cm, and it is considered that the degree of serpentine has a reluctant correlation with the leveling. On the other hand, the weld line diameter and the arc connection line j have an influence on the meandering and leveling, so the divisional position of the most appropriate snake area is expected to vary with the length of the welding line and the length of the recorded connecting line. If it becomes larger, the radius of curvature of the meandering interval becomes larger, and on average, the period of the weld line is larger. Therefore, the knot of the snake line is more than the __. ^The effect of weekly short _ _ _ flat becomes higher. Therefore, it is better to sigh the length of the snake knives and the length of the knives. To make these relationships clear, change the bribes as shown in Table 3. The long-distance combination of the Weiwei and Weiwei recording lines is evaluated by the respective 32 reelers for the leveled samples. First of all, the measurement range of the fixed snakes is 3 〇〇n for each of the 4 levels. , in 0. -, 2cm, 5cm, fine, _ distinguish the resulting two-dimensional curve _, measured with each _ The degree of serpentine corresponding to the _ target is measured. For each of the 32 reelers of the 4 levels, the leveling is measured. Finally, the correlation between the snake sling and the leveling is determined according to the following criteria, and the results are summarized in Table 3. And, the correlation coefficient: ◎SO. 7,0· 7^〇2〇· 6,〇. 6> △ >〇. 4, 0.4^ — Table 3 / then the level of the snake and the length of the arc connecting line and the distinction Interval width correlation correlation coefficient division interval width (cm) arc connection length (mm) wire diameter (βϊΆ) 〇0.5 2.67 15 〇2 2. 67 〇5 2. 67 — 15 2. 67 — 30 2.67 〇0.5 4 ◎ 2 4 〇5 4 - 15 4 - 30 4 〇 0.5 2. 67 25 ◎ 2 2. 67 ◎ 5 2· 67 Δ 15 2,67 △ 30 2· 67 〇0.5 4 ◎ 2 4 ◎ l· 5 4 〇15 4 △ 30 4 From the above results, the leveling is not related to the wire diameter of the wire of 15_~25/zm. 'The larger the snake's degree, the more bad the flatness is, but the degree of badness is flat. There is a correlation between the length of the wire used, that is, the length of the arc connecting line, and the degree of serpentine is estimated by the interval of 2 to 25 times the length of the lone connecting line. If the appropriate judgment is good or not, the accuracy of the measurement can be improved. 26 200825370 True straightness, the evaluation of the integrity and the badness can be carried out appropriately and simply. [Simplified illustration] Therefore, Before using the thin metal wire processed by the pre-wire as the fresh wire, obtain the image of the thin metal wire, and evaluate the length of the welding wire used as the two-dimensional curve, the length of the welding wire and the length of the arc connecting wire 2 to 25 times. The degree of serpentine _ in the first-picture mode shows the overall configuration of the measuring apparatus of the present invention. The second figure shows four representative meandering curves of the thin metal wires. The relationship between the meandering curvature and the meandering degree of the thin metal wire of φ 苐 图. The fourth figure shows a method for measuring the width of a serpentine line of the metal thin wire of the present invention. The fifth drawing is an explanatory view showing a meandering measurement method of a thin metal wire. The sixth figure shows the correlation between the meandering degree and the leveling failure in the measurement range of 0 5 cm (A) and 2 cm (B) in the meandering range. The seventh graph shows the correlation between the snake mites at 5 cm (A) and 15 cm (β) in the serpentine measurement interval and the leveling failure. • [Main component symbol description] 3 Metal thin wire reel 7 Thin metal wire 10 Windproof cover 11 Measurement window Μ 12 Camera 13 Image processing device 27 200825370 14 Monitor 18 Guide ring

28

Claims (1)

200825370 X. Patent application scope: L A method for determining the trueness of a thin metal wire, comprising: dropping a thin metal wire and photographing the thin metal wire from a vertical direction; reading the captured image as 2値 data, and obtaining an imaginary image from the image The center line is converted into a two-dimensional continuous meandering curve; the measurement area of the two-dimensional curve is distinguished by a plurality of intervals of 2 to 25 times the length of the arc-shaped connecting line when the welding (pressure) wire is joined, to Each interval of the two-dimensional curve of the differentiated two-dimensional curve evaluates the trueness of the line. 2. The method for determining the trueness of a thin metal wire, including: · dropping the thin metal wire and taking the thin metal wire from the vertical direction; reading the film as a 2 record, the pendulum county wants the financial line and converts it Into a two-dimensional continuous meandering curve; = The measurement area of the curve is divided into 5 sections or more for the interval of 2 to 25 times the length of the arc connection line when the fresh (pressure) wire is joined. 2 The respective snake width _ size order of each The + 数 + + + 〜 〜 〜 〜 〜 〜 评估 评估 评估 评估 评估 评估 评估 评估 评估 値 値 値3. The method for determining the trueness of the thin metal wire described in Item 1 or 2, wherein the straightness evaluation of the thin metal wire is evaluated by the distance between the parallel lines of the curve of the metal thin wire in the zone of the above-mentioned zone. . 4. The method for measuring the trueness of the metal thin wire according to any one of the items 1 to 3, wherein the image is processed and converted into a two-dimensional curve, in the direction of the viewing direction. For the amplification processing, the method for measuring the transmission of the thin metal wire according to any of the items of the enlarged image 29 200825370 5·Γ== to 4, Λ i is a thin line of 〇·015~0·025mm偟. 6. The method for determining the trueness of the thin metal wires described in the above-mentioned item, the 7-recorded/self-divided two-dimensional curve is distinguished by 11 and adjacent intervals. •: The straight line of the human pain line (4) Measuring device, which is a measuring device for the trueness of the thin metal wire for the glow wiring interface of the Xuan pull line, which is characterized in that: (a) the metal wire hanging from the winding wire|| The positioning guide ring, (8) the photographing means for taking the vertical direction of the metal thin line in a vertical direction, and (C) magnifying the photographed two-dimensional snake image only in the wide direction, the length of the welding line _ 2 to 25 The interval of the multiple is divided into a two-dimensional curve obtained by obtaining the center line, and each interval of the two-dimensional curve of the hybrid is parallel to the center line of the area line, and the line of the two-dimensional line is taken, 4 The distance processing device between the parallel lines is configured. I 8· The measurement of the trueness of the thin metal wires described in the claim 7 is performed by setting the illumination of the thin metal wires to be backlighted.