TW491011B - Reference hole borer and method of correcting feed position - Google Patents

Abstract

The purpose of the present invention is to obtain the reference hole coordinates reflecting position errors of each of guide marks by observing three or more guide marks disposed on an inner layer of a multilayer printed wiring board. The solution is: in Fig. 6a the center of gravity Hg is obtained from the designed coordinates of reference holes H1-H4 (e.g. 4 holes) on PL2, regarding each reference hole as a unit mass point, and an UV coordinate system is formed with the origin at the center of gravity. Similarly, guide marks P1-P4 measured in an XmYm (mechanical) coordinate system fixed to a boring machine on a PL1 are also expressed with an XY coordinate system with the origin at its center of gravity Pg, the same as the reference holes, and the centers of gravity Hg, Pg are superposed one above the other. In Fig. B the distance L1 between corresponding guide mark P1 and reference hole H1 is defined and the angle Α is obtained at which the square sum Q of L1-L4 is minimum. With the U-axis inclined by Α, the coordinates of H1-H4 are transformed to the Xm, Ym mechanical coordinate system and holes are bored at these coordinates.

Description

491011 V. Description of the invention (1) [Technical field to which the invention belongs] The present invention relates to a hole-opening machine for observing a reference mark of a multilayer printed circuit board to open a corresponding reference hole, and more particularly, to a device capable of opening a corresponding reference hole. Hole puncher for reference holes with 3 or more guide marks'. [Know-how] Recently, with the miniaturization of electronic components for surface mounting such as IC chips, resistors, and capacitors, printed circuit boards mounted with such electronic components have been increasingly demanding higher density and multilayering. . Even in general household appliances, multilayer printed circuit boards such as 4 layers and 6 layers are used, and the industry uses multilayer printed circuit boards with more layers, which has become a trend. A multilayer printed circuit board is composed of two conductive layers exposed on the outside and two conductive layers on the inner and outer layers. An insulating substrate is inserted between the conductive layers, and the conductive layer passes through the substrate. Form a mutually strangled structure. 'For example, a copper foil with a thickness of about 18 μm is often used as the conductive layer of a multilayer printed circuit board. The materials of the substrate are mostly thermosetting glass, epoxy resin and the like. In multilayer printed circuit boards with a high number of layers, heat-resistant resins such as glass / Polyurethane, glass, and BT resin are also used. . If there are more than 6 layers in a multilayer printed circuit board, since the number of conductors in the inner layer alone is already quite large, the manufacturing method of the multilayer printed circuit board will be briefly described with reference to FIGS. 13 and 14. Figure 1 3 (a) is a perspective view showing the structure of a 6-layer circuit board in a pattern; Figure 1 3 (b) is a pattern showing the conductors formed on the two-sided circuit board constituting the inner layer.

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V. Plan view of printed circuit pattern of invention description (2). Fig. 13 (c) is a side view of a mounting plate for J, which will be described later. Figure "(a) is a cross-sectional view of 6 == before the hot pressing step., Fig. 14 (b) is a section i of the substrate plate made by the hot pressing step. The 6-layer circuit guide in a state where a multilayer circuit board is formed by a bulk layer. ΓΠΓΛ shows that the 6-layer multilayer circuit board 60 is formed by sandwiching pre-molds 64, 64a, 64 between 2 double-sided printed circuit boards 6 1 and 6 1 with β σ exposed as the inner layer in 2 layers: Structure? On the two sides of the printed circuit board 61 on the inner layer, on the copper pigs on the front and back, the final products (printed circuits 61a, ... 61a, etc.) are formed by -like etching. At least two bases, 5 and 5 are used for positioning on the plates 61 and 61. Since the reference holes 65 and 65 are used as the reference, two printed circuits 61a, ... 61a, etc. on both sides of the surface are used. The patterns on the surface of the printed circuit boards 61, 6 丨 can ensure their relative position. The two double-sided printed circuit boards 61, 61 use the same coordinate position R) and the reference holes 65, 65 to form printed circuit patterns 61a, ... 61a Etc ... The pattern formed on both sides of the printed circuit board 6 丨 as the inner layer board, except: the printed circuit board In addition to circuit 61a, 6a, a number of guide marks 66, 66 for reference holes to be used in the subsequent steps, and 66a using ^ = guide marks in different tables are prepared. This temple guidance sign can also be formed in the process. The inner layer that has been engraved with the last name is overlaid with a double-sided printed circuit board, and

V. Description of the invention (3): The process of forming the knife on the position of the conductor portion of the circuit board is called a joint aay u = put on the circuit board with the right Γp brush to form a pattern 61 a , ... 61 a, prepared; the mounting holes 68 of the reference holes 65, 65 used in the second two are the same center distance bit pins 68a, 68a. A piece of etched and π circuit board 61 μ is retracted ~ θ spines are not printed on both sides of the printed electrical assembly board 6S i: the positioning pins 683, 68a are inserted through the reference hole 65 and placed on the preform mold A board. The pre-heated base material (Pre_Preg) 64a of the reference holes 65, 65 has been opened. In addition, the other piece ′ inserts the positioning fines a and 68a into the reference hole 65 on the attack plate 68. At this stage, the periphery of the two-sided printed office, 61, and the pre-die 64a in between are temporarily fixed, and they become lay-ups. ? 丨: lb. The above reference holes 65 and 65 can also be used as the reference L when jointing, so it can be called the reference hole for joints. In order to avoid inconvenience thereafter, the reference holes 65 and 65 are sometimes referred to as the reference holes 65 and 65 for joints. σ = 1 4 As shown in the cross-sectional view, 'On the two sides of the two-sided printed circuit board R after the joints, put the pre-compression dies 64, 64 and the copper foil 62 of the conductive material, and heat it with hot press. The pre-pressing dies 64, 64a, 64 inserted between the copper foil 62 and the two-side printed electrical reactor 1 will be thermally hardened and changed (absolutely) to the substrate 63, thereby completing the bonding between the conductors and forming A piece of evening layer printed circuit board 60. After that, in accordance with the wiring pattern of the inner layer of the multilayer printed circuit board, a new reference hole is opened, and based on the new reference hole, the outermost conductor wiring pattern is etched, and the perforation process is performed. And then apply electricity

C: \ 2D-C0DE \ 90-02 \ 89125117.ptd Page 7 V. Description of the invention (4) — 2 steps, rust-proof treatment steps, etc., are cut from the mechanical plate to the required shape and developed ^ d 成An early circuit board. In this case, the multilayer printed circuit is converted into the AA Λ body layer of the two-sided circuit board of the inner layer board as described above. Except for a single circuit board, the guide holes 66, 66, 66a are prepared in the standard hole. In addition to year a, it is also the base bba temple. In the etched 轺, these guide marks are also etched. These guide signs-the pattern of the circuit board 6! A, ..., etc. maintain a certain relative position early :: As long as the T introduction "Li" is measured, the identity of the pattern constituting the "circuit" can be determined. Holes_ In order to open the reference holes corresponding to the marks 66 and 66 formed on the inner layer of the above-mentioned multilayer printed circuit board 60, a x-ray (reference hole) hole punching machine 0 is usually used, as described above, which is heated under pressure and pressure. The outer surfaces of the two surfaces of the multilayer printed circuit board are covered with a non-smearing conductive layer. The visible light can be seen with the naked eye, and it is impossible to understand the perspective marks formed on the inner layer. At present, weak X-rays are generally used to see through the multilayer circuit board to determine the position of the guide mark formed on the inner layer board. In addition, ultrasonic or other measurement methods are being studied. In any case, it is a way to measure the guide marks formed on the inner panel using light other than visible light. The commonly used method is to measure two guide marks 66 and 66 and open two reference holes used in the next step. In fact, in the front and back, a third reference hole is often used for identification. However, this reference hole is only used for identification of the front and back, and the accuracy of the subsequent steps is not.

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There is a direct connection. Thereafter, the multi-layer circuit boards are inserted into the above-mentioned reference holes on the pins provided on the mounting boards prepared exclusively for the individual steps, and are mounted on the mounting boards. & When manufacturing multi-layer circuit boards due to pressure heating with a hot press, it is unavoidable to deform the inner layer to a certain extent. The positions of the guide marks 66 and 66 on the inner layer are also different from the original coordinates. The distance is often different from the distance on a leaf. Moreover, with the different positions of the inner plate, the degree of deformation will be different in some parts.

However, the reference hole used in the next step is also used to penetrate the pins provided on the assembly board, so the center distance between the two reference holes, that is, the reference hole interval, should be the same as the pin interval on the assembly board. easy to use. Therefore, instead of opening the reference hole with the guide marks 66 and 66 as the center, the method of dividing the two reference holes with a certain reference hole interval with respect to the guide mark is generally referred to as a distribution method. Next, a two-hole allocation method will be described in accordance with FIG. 15 (a). Figure 15 (a) is a schematic diagram illustrating the principle of the 2-hole distribution method. In the figure, 50 indicates a mechanical coordinate system (Xm, Yffl) fixed on a hole punching machine, and a multilayer printed circuit board.

The guide marks 66 and 66 formed by 3 are designated as ρ, p2, and the opening reference holes are designated as HI, H2. Obviously, if the markers P1 and P2 are cited, the coordinate values are displayed as a mechanical coordinate system, and Pl (xl, yl), ρ2 (χ2, y2) can be obtained. Then we get the distance B between PI and P2. "" Ji Gong is easy to find the amount of deformation of the multilayer printed circuit board. It can be imagined that this distance B and the reference 491011

V. Description of the invention (7) (A schematic diagram of a guide mark not shown in the figure. Figure 16 (c) is a sample of a shaft hole: U opens a reference moving table 80 on a multilayer printed circuit board (not shown) In Fig. 15 (a), which is the second fracture θ and f outside, "m ^" can be omitted, and the X-moving gantry 73 on the right side is omitted. And the roller 72 is provided with a linear guide. 73a, 73a supports ^ Pu '2 tunnel-shaped X-moving gantry 73, with a movable surface, the lower part = a straight line Λ 生 装置 74 fixed to the uppermost shelf of the x-moving ridge 73 ㈣ also ball ™ ^ J Μ Supported by the way of movement. 2 X-moving gantry 73 are facing in opposite directions to each other, and move along the Xm axis of the-# standard system, which can be 阼 — „, l 7 / 口 者 十 仃 is small, adjust The interval of the large Λ moving surface of the multilayer printed circuit board is to move along the ^ axis parallel to the mechanical coordinate system, 2 6 and the spindle 77 of the drill rotation mechanism, which are fixed at a distance of -m between PmS. The movable stage 80 is arranged to move on the Ym axis of the coordinate system of two X-moving gantry 73, and is arranged on the narrative dagger Q n II, and the mouth of the player is at the machine 8: 'At the position of m by rolling Screw 8〇b, put the circuit board (not shown) on the movable table 80. Pull into the opening position shown in the movable table 80 in Figure i5 (b). The X-ray 'through-line protective tube' radiated from the X-ray generating tube 74a in the line generating device 74, and the clips movably arranged at the front end thereof ... The holes are opened through a multilayer printing (not shown) The circuit board's guide marks the line shot below the shot. C: \ 2D-C0DE \ 90-02 \ 89125117.ptd $ 11 5. Description of the invention (8) _ The position of the Imbe image g76 (mechanical The coordinate value of the coordinate system j: = the guides projected by the parent line imager 76 on the picture 2 m screen 'coordinates of the two guides can be known. JiΪ; quasi :: two coordinates' You can follow the method 1 1 1 (J): No. The mandrel 77 occupies the position of the 1-line imaging cry that only moved S. At the same time as the Y mobile stand 7 on which the mandrel is placed, It is also possible to move in the direction of 6 γ Hongshi direction and Ym axis ^ At first, please ignore it! Move, so it can be withered in XM by H? RY9 vo, cardia, and in the reference hole H1 (X1, Y1),), Place a drill 7 7 b to make a hole. = Multi-action Y moves the gantry 78 to the opening shown by the single-dotted dotted line in Figure 16 (c) to identify the reference hole in the table. Therefore, the accuracy of the opening is identified. The two basic movements in the table :: There is only used; = she moves while;:; poor :: the moving brush circuit board does not move. The upper layer of imprint [problem to be solved by the invention] However, later It was found that when using a two-hole reference hole and through-hole opening processing, the I rate of defective products was different due to different patterns J t. —Generally, the types of guides in multilayer printed circuit boards are: Steps for opening the through holes of the circuit board in the peripheral part of the peripheral part of the multilayer printed circuit board. Found the bad ratio: Page 12 C: \ 2D-C0DH \ 90.02 \ 89i25117.ptd 491011 V. Explanation of the invention (9) Trend. The deformation of the datum opened by the hole machine has been explained, but it is positive. Therefore, the multi-layered pattern will increase, and, for example, the cost of the openings will be taken into consideration because of the deviation of the moving amount in the moving direction of the structure over the years. [Hand to solve the problem The present invention uses a machine provided with a reference X m-axis and a γ-out axis; it is used to observe that the conductor layer forming the circuit board has a feed that is different from that of the printed circuit board and the Xm described above in the printed circuit. Based on the above observation, the two-hole allocation method for measuring two guide marks is opened. The line near the straight line connecting the two guide marks is deformed in the vertical direction. However, if the area of the circuit board is not increased, the poor circuit rate will be generated. reduce. It is usually used for mass production of industrial machinery, and the structure is exactly the same as that of the measuring machine. It is caused by other influences such as correction of the support structure and feed, and shake. It should be carried out at low cost. ， 1J 孑 L ， calibrate the straight section of the printing section to correct the tilt of the tilting section such as the Zhiliang machine to achieve the above purpose: =, hole machine, equipped with a standard system set to intersect at right angles The frame fixed by the frame of the reference hole opening machine ί: ί 3 more two? Electrical, printed circuit board, and observation marking device; the shaft and the above-mentioned clothes, the above observation can be installed in the direction 'can be placed on top; and the above-mentioned position of the k-hole device's relative clothes Coordinate of the guide bow 丨 mark, calculated as C: \ 2D-CODE \ 90.02 \ 89125117.ptd Page 13 屮 1011 V. Description of the invention (10) Out: = control device by which the above feeding device is controlled. Point the observation value of the above guide mark, and consider the above-mentioned "guidance bow" π as the center of gravity position after the unit mass point has been replaced. The mouth V has a parallel point, 4 > parallel to the xm axis as the origin. On the seat post, #-μ i and 仃 on the χγ axis of the γ axis of the Ym axis are pressed, and the seats showing the above-mentioned guide marks are displayed. Guidance mark seats are like two percent, the number of recognition, and have the same timing as the design; ρ, ^ i, f / I 5 of the coordinates of the hypothetical reference hole setting J / said hypothetical reference hole is regarded as the unit Particles are applied with bismuth & coordinate system to show the above each pseudo ;; When the coordinate value of the Jifeng hole is set, the center of gravity of the guide and the upper test tongue of the imaginary reference hole, and the center of gravity of the tongue field are used as the rotation center, so that the above-mentioned uv seat ~: 'the above reference of the printed circuit board The coordinates of the hole. No, turn around to determine the above-mentioned reference hole opening machine, the U axis and the above-mentioned false angles corresponding to the above-mentioned guide marks are based on the square, plus the above-mentioned neighbor & The flatness of the distance between the holes. I 王 σΡ ¥ The total sum of the squares of the indexed indexes becomes the smallest angle, and it is also provided with an observation device that can act as a volume @ β7, or a camera device that acts as a hole puncher. It is a reference standard for the double-sided circuit board on the inner layer of the circuit board. A reference hole drilling machine is also provided, which has the Xm axis and Ym axis intersecting.疋 has a frame set at a right angle; 、, "sit" 糸 's reference hole opening machine frame is fixed to test the printing formed on the multilayer printed circuit board as a constituent element C: \ 2D- C0DE \ 90 -02 \ 89125117.

Ptd Page 14

III V. Description of the Invention (U) The observation device for the conductor layer of the circuit board in the above printed printed guide with at least 3 points of observation, an opening device having a reference hole with the above-mentioned c; said printed circuit board, and ° Soil "The axis is parallel to the feeding direction, which can change the relative position of the above-mentioned feeding device observation device and the above-mentioned opening device. The second package of the above-mentioned opening device has: The tool and the mandrel are set on the same movement to place the clamps that have not yet been holed. After using the above-mentioned clamp support tool to arrange the holes at a predetermined position, the drill is used as a drill to open the hole. The clamp material is opened and the ancient clamp is provided to change the movement of the clamp and the drill 2 in a plane at right angles to the "shaft", and a reference hole opening machine with relative position of item t can be provided. Directly prepared as above _ feed position correction method, equipped with Xm axis and Ym red from which Λ is set to intersect with the angle 、, and 疋 ° is a reference hole with a fixed frame and ^ mechanical coordinate system The frame is used to test the observation device formed by printing 4, μ ^ at least 3 points of the guide mark formed as a component of the printed circuit board from the conductor of the circuit board; it: open on the printed circuit board Reference hole opening device; It has the printed circuit board and the X-cylinder ^ mentioned above; ... 111-axis parallel feed direction, the feeding device measuring device capable of changing the upper position and the relative position of the above-mentioned opening device 'and Observed the coordinates of the above-mentioned guide bow 1 from the observation, which is considered to be the control device equipped with the aforementioned feeding device, and the feeding of the above-mentioned feeding device of the reference hole opening machine.

V. Description of the invention (J2) The method of position correction includes: · It is placed on the above feed. Move the upper two holes in the direction of Y m, fix the fourth reference hole at an arbitrary interval, move the ^ movable platform at an arbitrary distance L, and then open a third. Turn the left and right of the upper board on the movable platform. And place the opening position, place the second reference hole on the first reference hole, move the movable ^ > hole to the opening position of the second reference hole, and obtain the Xm direction. After deflection = distance L, Xiao said that the above-mentioned observation device was used to feed the Fangsi Temple of the movable platform, and the heart-buffered ship was set to correct the forward connection of the cymbal, and stored in the feeding position of the control-mounted kj movable platform. And also proposed a kind of mounting two assembly boards, in two, the left and right of the movable stage, and the h-axis level to memorize the observations in the control jealousy " Reduce the position of the small hole in the assembly board '[implementation of the invention Form] Used to correct the feed position of the movable table. Two I! T ′ :: FIGS. 1 to 3 illustrate a multi-point distribution method λ (hereinafter referred to as a hole punch) according to an embodiment of the present invention. FIG. 1 is a perspective view of an outer case of an opening stack 1 according to the present invention, and is shown in a perspective frame 2 manner. Figure 2 and Figure 3 show the punching machine! Fig. 2 (a) is a front view of the punching machine}, and Fig. 2 (b) is a side view 'and Fig. 3 (a) (b) is a movable table of the punching machine. Plan after position change. 2 and 3 are diagrams showing the perspective frame 2. In addition, the mechanical coordinate system (X m, Y m, Z m, origin 〇m) contained in each figure is fixed to the fixed part of the hole puncher (such as the hole puncher and the stand).

Page 16 491011 V. Description of the invention (13) " '------- 3 etc.) The coordinate system of the feed mechanism is moved in parallel with this coordinate axis. X-ray imager observes multilayer circuits ° ^

The coordinate value obtained from the index mark and the open hole seat V of the reference hole are calculated using this coordinate system. The blank arrow 17 in Figure i means that the position of the operator is standing in the direction of this blank arrow. Zhebei's aiming for electrical holes is completed. The number of quasi-holes is 4, and = When the coordinate values on; are the same

Both can be handled in the same way. For the purpose of three or more e-mails, the reference holes used in the subsequent steps are the same as those described below. Actually, the coordinate positions on the hole meter are the same. Therefore, the number of guide marks and the design of the design The coordinate values are the same: the reference hole used in the shape (the same as the reference hole of the guide mark so as to distinguish n) is called an imaginary identification. 2 holes are separated by Γ hole method Λ, and added to the printed circuit board. The holes on the front and back for identification will also become 3 holes 9 j

The holes on the front and back of the formula are used for discrimination, because ^ is the same as the 2-hole square multipoint distribution method described above. In addition, the multi-degree is not related, so instead of the holes being symmetrically arranged, in the i-knife method, most of them do not use the 4 before and after discrimination, and do not need to chase and leave it aside. Inside the hole machine! Frame 2: Department, Bu: = hole can be completed. The stands 10, 10 form approximately a tunnel-shaped ridge: the operation table 3. Left-to-right movement x. The X-moving gantry 10, 10 is formed into a mirror image relationship between the left and right sides.

491011

V. Description of the invention (15) Protective battalion 5 LV This v 'mouth clamp 9 is used as the second! 6 As an observation device for the guide mark, the movable platform 12 is moved two times Λ frame Λ10, γ, 12a, and the ball screw drive it 4 linear guide bows noa, lla, and not shown: two V12b, etc. respectively form a driving arrangement. Step, control the above: Kind: Set the position, follow the "" h / X.10: Outgoing and wide reference hole of the two observation devices in the series of opening operation steps. " , Is the biggest function of the control device. #Open the position of the reference hole. This is as described later. The reference hole is opened on the two sides of the joint before the tenon. _ _ The reference hole is opened. Its i β = surface circuit board can be used with multiple points. Π mesh :. In the case of a quasi-perforating machine, there is also a CCD imager for viewing light as an observation device. d4 Erming details of the movable table 12. Fig. 4 (a) is a plan view of a movable pinion. Fig. 4 (b) is a cross section of a plane containing Xm and z_ cut in parallel: the moving table 12 is usually made of metal to form a flat plate shape, the guide mark 1, and 0 holes for opening reference holes) Chip ejection holes 3, 3 and 3 (3, 4 holes) The ejection holes 13a, 13a are opened on the left and right sides. Stand (layer printed circuit board 6) Align the front end of the circuit board according to the size of the outline, and place it between the largest circuit board shape 69 and the small circuit board shape 6 9 a shown by the dotted rectangle. Holes j and 2 use chip removal holes.] 3 Make holes in the front 16 range, and reference holes 3 and 4 use chip removal holes 13a. Make holes in the area of arrow Wa. X-axis assembly plate 1 4 , 14 and Y-axis mounting plates 15 and 15 are explained in detail later

Page 19 C: \ 2D-CODE \ 90-02 \ 89125117.ptd 5. Description of the invention (16). The four steps for making the reference holes are described as follows: W Use the coordinates of the opening circuit board to determine the X movement plus nj (the hole on the mouth). The reference hole is connected to 10 and 10. In the position on the Xm axis, Ji also received γ to move the gantry to 1. Move to this position on standby. Set the movable building 12 at the position 12A in FIG. 1 in advance, and the operator will place the circuit board 60 on the movable table μAA as a predetermined position on the multilayer printed circuit 12 by Lebe. The circuit board is on the movable table 12.可 动 # 寸 Inch mouth Under the raw tube 4a, the inscription Z is embedded in the X-ray generator 4 of the X-ray generator 4: 4a :: Move to the desired position of the guide marks ρ, p2. Let's see the memory of X-ray imagers 6, 6 marked P1 and P2. value. Coordinate values are stored in a control device (not shown). P4: Move in the Ym direction. The distance moved is the distance of the guide marks p3, i 4a_F. Then irradiate the x-ray, observe with x-ray imaging, and observe the coordinates of P3 and P4 after storing them. μ Here, the difference method is explained as follows. The coordinates of the reference hole HI, Η2, Η3, and Η4 are calculated using the coordinates of the 4-point guide mark. First, move to the coordinates of the reference hole HI, Η2 and set the reference hole H1. , Η2 openings. When the movable table 12 is moved to the input position 12 A, the operator takes out the multilayer printed circuit board 60 that has been drilled, and the reference hole processing step is completed. The above-mentioned reference hole processing steps will be described with reference to Fig. 5 based on the operations of the equipment mounted on the X and γ moving stages. FIG. 5 (a) is a front view of the X-moving stage 11 and the Y-moving stage 11 as seen from the operator's position. Figure (b) is a plan view of the χ moving frame

~ 1011 V. Description of the invention (17) The upper half of the stage 10 is removed to show the upper diagram of the gamma moving stage 丨 丨. 5 (c) and (d) show the χ moving stage i0 seen from the forward direction, (c) when the guide mark is observed with the X-ray imager 6, and (d) when the hole is opened with a mandrel Pattern illustration. The observation of the guide marks PI and P2 is from the Y moving stage to the X-ray observation position shown in Fig. 5 (c). χ 、 线 保护 管 5 # σχ 线 imaging device 6 comes directly below the X-ray generating tube 4a. The X-ray generator is activated by a command from a control device (not shown), and the X-ray emitted from the X-ray generator tube 4a passes through the inner layer of the multilayer printed circuit board on the X-ray protective tube center # 图 movable table 12 V leads to P2, and the image is captured by the x-ray imager 6. This = a computer in the control device 'calculates and stores the ρ reference hole of the guide mark ρ2. The opening of the reference hole is performed by a drill 7 at the front end of the mandrel. 'X mobile stand 丨 〇 moves to 仃 ° of reference hole H1

The moving stage 11 is moved to Ym 'of the reference hole, as shown by Y. Because the X-ray imager "... and the two S' of the mandrel 7 ', the Y moving stage U has only moved a further s distance) = Two are: high-speed shafts, such as gas turbines or high-frequency motors, which are sources of rotation. 7: Use a woman's clamp on the rotating shaft 7a. In addition, although the drill 7 made by γ is mistakenly caused by the air cylinder or linear motor that moves the mandrel 7 up and down, it does not cut into the clamp 9 that the drill is disposed directly above the mandrel 7 and is installed on the air cylinder.

When ΐZ t is set, the circuit board fin p placed on the movable table 12 can be pressed to prevent the circuit board 6 from moving when it is ∗ L two M, Λ J is ridged b ο. The details of the clamp 9 are described later. People's Day] Structure and function When the Y-moving gantry 11 only faces X and the drill bit 7 b is moved to the opening. In addition, when the X-moving gantry 10 is moved in the direction of movement 10, it will report a slight amount of position. Is also possible. Refer to Figure 6 for a description of the Titanium PID knife guide type. Figure 6 (a) is modeled

. ^ Μ 0 ～ 4 and the reference holes Η4 and the various coordinate systems between the coordinate system ^ Figure. Figs. 6 (b) and 6 (a) have the same relationship, and are explanatory diagrams projected on a plane containing the mechanical coordinate system Xm 111. Figs. In the following description, the number of the pinholes is four, but as long as there are three or more holes, the same method can be used. As described in the above, "the reference holes Η ~ H4 are imaginary reference holes, that is, the positional relationship of the reference hole Η1 corresponding to the guide mark P1 is the same." Is the same. Therefore, assuming that there is no error in the positions of the reference holes in the hot pressing step, etc., the guide marks 〇1 to p4 and the corresponding reference holes ~ H4 can be completely overlapped.

The guide marks formed on the inner layer of the multilayer printed circuit board 60 are observed with an X-ray imager 'to obtain the coordinate values of the guide marks of the Xm and Ym axes of the mechanical coordinate system. Figure 6 (a) is shown on the pli plane. Assume that the coordinate values are pi (ml, nl), P2 (m2, n2), P3 (m3, n3), P4 (m4, n4) ° Set the unit mass point for each guide mark to find the center of gravity pg (gx, gy). (gx = (ml + m2 + m3 + m4) / 4 and gy = (nl + n2 + n3 + n4) / 4 ............ ..(1))

491011 V. Description of the invention (19) ^-Then, transform the coordinates into a coordinate system with X axis and Y axis with the center of gravity pg as the origin: PlUl, yl), P2 (x2, y2), P3 (x3, y3), ρ4 (χ4, y4). So: (xl ml gx, x2 = m2-gx, x3 = m3 —gx, χ4 = m4 — gx and y 1 -nl-gy, y2 = n2-gy, y3 = n3—gy, y4 = n4 — gy • • References ··· · · _ · • «秦 # * · · · · · · Abuses · ·» · (2)) On the other hand, the coordinates of the reference hole on the PL2 plane in Figure 6 (a) It is displayed by the coordinate system on the design with UD and VD. The same as the guide mark, the reference hole is also equipped with a unit mass point, and the center of gravity Hg is obtained by the same calculation method. With the center of gravity Hg as the origin, the coordinates are transformed into a U axis parallel to the rib axis and a VD axis parallel. The coordinate system of the V axis. Set the coordinates of (a again) as hi (mi, ni), H2 (M2, N2), H3 (M3, N3), H4 (M4, N4), and find the center of gravity fjg (GxGy) as · ( Gx = (M1 + M2 + M3 + M4) / 4 and Gy = gy = (N1 + N2 + N3 + N4) / 4 ........ (3) ) Convert the coordinates to the coordinates with u-axis and v-axis with Hg as the origin to obtain HKU1, V1), H2 (U2, V2), H3 (U3, V3), and H4 (u / VV4). (U1 = M1 -Gx, U2 = M2 -Gx, U3 = M3 -Gx, U4 -G and V1 = N1-Gy, V2 = N2-Gy, V3 = N3-Gy, V4 = N4 ~ Gy .... ........................................ ... (4)) so that the planes PL1 and PL2 overlap with the center of gravity pg of the guide mark and the center of gravity Hg of the basis. If the projection is parallel to the Zm axis, we can get = hole 6 (b). Inch group. Imagine that the fixed plane P L1 ′ overlaps with the center of gravity p g (and η Ji) >

C: \ 2D-CODE \ 90-02 \ 89125117.ptd Page 23 491011 α is determined, use the following formula to set the uv coordinates (X = Ucosa —Vsina

The resulting rotation angle is α, assuming the X axis and U. The following formula is used to find -xi X Vi) / Σ (= 1 to 4 coordinates ......... (5)) V. Invention Explain the center of (20) and rotate plane PL2. The positive connection of the rotation angle α is available (tan α = Σ (yi X Ui Here, Σ is calculated to add the word i, don't find its total .......... Y = Usin a + VCOS α .. ..... The mechanical coordinate system is transformed into X m, Υ m, and the standard value can be added. According to the coordinates so, the opening step of the reference hole xi x Ui + yi χ ν〇 value, numerator, denominator Change the coordinates to XY coordinates .........))) As long as the reference holes of the mechanical coordinate system obtained from the coordinates of the center of gravity Pg (gx, gy) are 0, in addition, k The calculation time from the measured value of the coordinates of the index mark to the coordinates of the reference hole that is actually opened can be completed in a very short time if the calculation speed of a modern personal computer is used. problem. In the above, the calculation program is briefly explained. Among the calculation programs, the following two points are the main points of the present invention. One point is ... the same number of (target) reference holes formed by multiple points as the guide mark group composed of multiple points are regarded as particle systems with unit particles respectively, and the center of gravity is sought so that the centers of gravity are consistent overlapping. In terms of motion mechanics, in order to compare the motions of the two particle systems, a rotation axis with the smallest inertial energy rate is obtained, and there are many cases where the axes are consistent and compared. The axis of rotation with the smallest inertial energy rate is the axis of rotation perpendicular to the plane of the particle distribution among the axes passing through the center of gravity of the particle system. Corresponds to the flat of Figure 6 (a)

C: \ 2D-mDE \ 90-02 \ 89125117.ptd Page 24 491011 V. Description of the invention (21), PL2. If this axis is used, the change in inertial energy rate due to the position of the axis can be completely eliminated. There is no change in the coordinates of the right and left guide marks. If the guide marks and the reference hole are overlapped on this axis (that is, the center of gravity), the corresponding guide and reference hole can be overlapped. Narrated. The corresponding inconsistency of the reference mark $ reference hole can be said to be caused by the coordinate change of the guide mark. That is, by superimposing the plane of the guide mark distribution and the plane of the reference hole distribution to 1 and bringing the center of gravity of the two to the same, it is possible to exclude other influences as much as possible: and only reflect the deformation caused by the inner layer plate. The error caused by the guide mark. The second point is that if the center of gravity of the guide mark and the reference hole are the same, the only degree of freedom left is the rotation centered on the center of gravity. The body is limited to the rotation in the plane PL1 shown in Figure 6⑷. Thus, the distance of the corresponding individual guide escort becomes minimum, as long as the rotation angle is found, then the position of the center is the best reference hole. As shown in FIG. 6 (b), for example, the distance u between the guide mark P1 and the reference hole 耵 can be displayed as the following formula (7): (Number 1) L 1 = — ........... ... (7) The XY coordinate system XI, Y1 'of this reference hole HI is transformed by the previous formula (6). If the distance is only a positive value, there is no need to open the radix, as long as the comparison is performed after squaring. The numbers of the sum of the squares L1 to Ln and the rotation angle α are represented by the following ^ / (8). (Number 2)

491011 V. Description of the invention (22) η η Q ^ Lioi) ^ Σ Σ {(χχ " ~ Χ1) 2 ^ '(γ1 ~ Υι) 2} ... (8) i = 1 i = 1 in The threshold Q near a = 0 is continuous and differentiable. Because it has a minimum value (minimum value), it can be partially differentiated. Set the value of the derivative to 0 to obtain a 〇 (number 3) an nd X r θ x: d V, dy {4 = Σ ((-h 2 y (9) 1 * 1) and the relationship of the following formulas (1 0) to (1 2) can be obtained: (number 4) U = -Usin a — Vcos a = — Y ........... (1 0) _ _ H = U cos a—Vs in a = X ...... ............... (11) Σ (y ^ i ^ xiYi) = 0 ........... ( 12) After bringing this composition into the above formula (9), the following formula (13) can be obtained: n C number 5) — 土 (yA — XlVl) tan a —- = ~ 'C〇S ^ Σ (xU + yV,) ........... (13) 1 = 1 That is, the forward connection of 0: can use the known guide mark coordinates The measured value of the reference hole and the coordinate value of the reference hole are calculated. Α is usually within plus or minus 45 degrees, so the sine and cosine of α can be obtained together. The measured values and basis of the known guide mark coordinates are used. The calculation formula of α to obtain the coordinate value of the hole is the second important point of the present invention. Above, an example has been described to make the center of gravity of each guide mark and the reference hole the same, and to minimize the sum of the distance between the two There are many methods for determining the coordinates of the guide mark and determining the reference coordinates. For example, the square value of the distance between each value point and two straight lines that intersect at right angles is the smallest.

C: \ 2D-CODE \ 90-02 \ 89125117.ptd Page 26 Chuan 11 V. Description of the Invention (23)-The angular regression line can be used with a slight change, and also. 2 bows 丨 increase the weight on the mark, or select the guide mark to distribute the positive rotation angle of the reference hole. * The number of fiducial holes and imaginary fiducial holes that have been consistently used in wood applications is mostly due to production reasons. The position is not in order to faithfully reflect the differences in various places on the printed circuit board, forming: ^ The more the number of guide marks on the counter, the better, for example, although 8 pieces of printed marks are observed for calculations = The reference hole of the pin (even considering the judgment in the table) is probably just a magic sentence. 'The cost of manufacturing circuit boards has also been reduced. = This. Even if the hypothetical reference hole is different from the actual reference hole, the coordinate of :: sample is used to record the coordinates of the hypothetical reference hole and actual reference hole:, and the coordinates can be easily changed. ] 丞 Early hole at in: A piece of circuit board on both sides, after joint assembly, and pressing the average coordinate system of the hair path pattern, the number must be determined to include the precise measurement of the line guide marks, the position, It is not easy to obtain; 2 ::: = In: the guide pattern errors of the layers in each guide mark (in the step of Tu'an \ Guangzhou matching, in order to reduce the error, re-think :, standard error /). In the following steps, the following improvement ideas have been produced: the step of fitting the rods, the processing accuracy of the reference hole used in the joint assembly step must be improved.

491011 V. Description of invention (24) High. Secondly, the gap between the pin and the holes on both sides of the Pei board when joints are assembled should be minimized. The reference of the circuit board. Policy L3: The number of pins of the assembly board has been added, and the two-sided circuit board is fixed at multiple places on the periphery (of course, the number of reference holes on the two-sided circuit board must be increased). Curvature = Fruit: If you are good at these points, the single-circuit board pattern formed in the inner layer in the joint assembly step and hot pressing is wrong. Second: When the multilayer printed circuit board completed by Tianshi, the single-i of each layer The displacement of the board pattern should be reduced. Circuits One of the ways to improve this is to first observe the majority of the guides at the stage of the Λ plane circuit board before the joints are assembled. The coordinate system with excellent precision degree has been used in the present invention to say ㈡ = to find the coordinate system. According to the coordinates obtained in this way ::]; owe: base ". The number of reference holes is theoretically only 2 instantaneous. 'However, in order to prevent the two-sided circuit board part from setting more than 4 reference holes. The outer periphery of the lamp 裎 5,: f is the same as the accuracy (position) of the reference hole, and it is also # 直 = 丄 to improve the accuracy of the aperture of the opening. /-Ί ΐ Ask the The accuracy of the coordinates of the pin and the accuracy of the diameter of the pin are set by 蛊 卜 冲 苴 唯 β ^ — To improve the rigidity of the two parts on the assembly board: ~ The pin ", must also be ..., used in istep private fields Increased accuracy and rigidity of the mounting plate,

C: \ 2D-OODE \ 90-O2 \ 89125117.ptd page 28 5. Description of the Invention (25) and Tigu response to aperture accuracy. A 'can extend the original method in order to reduce the multilayer printed mine, the displacement of each layer to the most self-reflective, the body pattern of the conductor pattern formed on the limb layer seat seat = =, must be on both sides of the circuit At the stage of the board, the reliability of each guide is high by two = hole: reflected on the receiving step. Must be marked: ί: 目;: J: hole punching machine, the reference hole punching machine of the required reference hole seat. y using the above-mentioned multi-point distribution method

:: Ming Minger with reference holes 65A, 65B formed by the above-mentioned hole opening machine

Multi-layer printed electricity: board ^ 1A more than a few pieces ..: 1A = look like. FIG. 7 is a schematic perspective view of the structure and several double-sided circuit boards 61A and the pre-die 64aA joint breaking board 68A. It is better that there are four corners on the two-sided circuit boards 61A, ... 61A of the Γ quasi-holes, such as ^ b, and the reference hole 65β provided in the center. On: J-joint mounting plate 68A is equivalent to two-sided circuit board setting pins 68aA, ... 68aA, and its coordinate position knife: 4, coordinates of a plurality of reference holes formed on the circuit board 61A, ... 61A : = Face: In the case where the reference hole 65β is formed in the position plate 61A, the setting pin 68aB is planted at a non-position. A pre-compression die 65aA is sandwiched between two pieces of the two-sided circuit board 61A. One set enclosed by the bracket A in FIG. 7 is inserted through the positioning pin 68 ^ of the tenon mounting board 68A and placed on the mounting board. Moreover, a set of two-sided circuit boards 61A and pre-molds 64aA enclosed by the brackets in FIG. 7 are continuously placed on the joint assembly board 68C: \ 2D-C0DE \ 90-02 \ 89125in.ptd page 29491011 5. Description of the invention (26). The majority of these two-sided circuit boards "A and the pre-tenoning process are the same as previously explained; = temporarily fixed, and the hot pressing step is not different, by connecting = the same. The accuracy is improved. Chip printed circuit boards Coordinate JJ: With reference to FIG. 8 and FIG. 9, it will be explained that when the observation guide is set: the reference hole of the multi-point distribution method of the reference hole opening of the double-sided circuit board: multiple R9 used ^ θ is a perspective view of the appearance of the hole punching machine 31 of the present invention, and it is shown in a perspective view. 6] The leg diagram and the frame are shown in FIG. 9. The mechanical coordinate system am, showing the important part of the hole punching machine 31. Ym, Zm, machine :: Figure. The hole punching machine entered in each figure (refer to Figure 5)! Phase 0m) 'In addition to the previous description, the same purpose and shape of the zero number, the blank arrow 17 in Figure 8 is also in place The same direction as in Figure 1 is the same as the figure! 〃 M i 'The operator can measure the reference hole of the circuit board on both sides, and can also measure the hole punch of the device. Line view, #, '' The guides on the circuit board on both sides of the object are exposed. * On - Η case, if it is a two-sided circuit: m manure to two to identify with visible light. For example, a CCD can be used to display the cry; the tongue: the observation device of the hole machine 31. ‘The temple ’s photographic equipment that operates in the visible light field. In Figure 8, there are two C C D monitors arranged at the top and bottom of the spoon.

C: \ 2D-CODH \ 90-02 \ 89125117.ptd Page 30 V. Description of the invention (27) = Medium ^ with d and Qin, depending on the type of circuit board on both sides of the measurement object, only 1 can be used in the case of meaning It can be measured by a CCD imager. That is, in the case where the guide mark f is formed on one side of the two-sided circuit board, or in the case where the pattern for grounding is not required, it is only necessary to use. It is enough to visualize the descent. Inside the frame 2 of the hole punch 31, a gantry 3, a χ moving gantry 10, and X 'are supported by linear guides 10a and i〇a arranged on the upper end of the gantry 3, and a 1 is borrowed The rotation of screw 1 Ob, according to the big lluHr view of the circuit board with the reference hole open! ? Stand at the position of the guide. X mobile stand 10x,

For Xuan Xuan 15, there is no need to install X-ray generators and X-ray protection on the upper part, so the height can be reduced. Shan Zhi Mou; Ua, Ua are attached to the x-mobile stand 10x, 10x, γ The movement is supported by the linear guide 11 & the moving platform 11 and U can be moved parallel to the Ym axis (refer to Figure 2), this point is the same as that of Figure 1 4) . Like crying 3 wooden, 1 1 maintain a mirror relationship with each other to form a tunnel shape, CCD shows "A is on the upper part, this side by side setting will move Shuang Tong 9 and Shuang Tong 9 up and down. Field of view 2: ::: Yes C] D imaging器 仏 后 Developer 32, 仏 轴 7. — Ό σ is also set to set the center and the car even at the distance S in the Ym direction. The linear guide of the central part of the frame is set in parallel with the ball screw l2b. And the ice wins 51 movable platform 1 2. It is movable in flat > /, and carrying two circuit boards on both sides. The two-sided circuit board on which the workpiece is placed is measured and moved along the Ym axis. 5. The description of the invention (28) The moving guide 'is pulled to the opening position of the reference hole. 32 ^ ^ ^ ^ ^ ^ ^ ^ CCD H n-a is formed as a reference mark observation device, heart =? Moving frame_moving frame ", and movable dagger = support, driving linear guidance 10a, lla, 12a, iib, 12b and other driving devices are set. In addition, the two-hole drilling operation sequence of the accumulative cup b is not shown. = Calculated from the images of the guides observed by the observation device] Opening of the two-valued and hole: "Design coordinates of the quasi-hole. Calculate that the reference becomes the radon display, and other parts can be In addition, using a hole punching machine 3 1 on two circuit boards: the sequence is also the same as the hole punching machine i. Like the reference holes for the tenon on the two circuit boards of the two bases and two J boards, it can be straight = circuit The calculation of the multi-point distribution method used to open the reference hole on the board. 2 evening electricity = 2? 3 2; if the two-sided circuit board using the multi-point distribution method before the tenon enters the majority of the holes, guard the hole. , 彳, suitable for the jointing hole step ^ pressing step for high-precision, high-rigidity assembly board to improve its accuracy. ', Λ…, such a reference hole opening 胄' after the hot pressing step: The integrated multi-layer printed circuit board and the two-sided printed circuit board of the multi-sound ρ brush circuit board component before the tenoning step are used to make reference holes. C: \ 2D-OODE \ 90-O2 \ 89l25117.ptd Page 49491011 V. Description of the invention (29) step. That is, the reference hole punching machine is for A printed circuit board including a multilayer printed circuit board and a double-sided printed circuit board collectively referred to as a multilayer printed circuit board can form an effective reference hole. "Next, a method of improving the accuracy of the feed of the movable table 12 will be described. The two-hole distribution method is related to the measurement accuracy of the guide mark. It is only the feed in the Xm direction. The feed in the Ym direction will become a problem. Only in the private X-ray imaging state 6 and the mandrel γ When the distance is only a fraction of the total moving distance of the platform 12. However, guides with more than 4 holes are usually arranged on the 4th drop of the circuit board, and the distance is roughly equal to the length of each side of the circuit board. If the movement name in the direction of Y m ^ Lan Dou, θ ancient μ r ... Γ or the movement direction of the movable platform is so that the moon and the axis are parallel, then the third and fourth guide hole seats f The measured value will deviate even more. The error may be too large. Tuping hole seat is shown

Because the hole punching machine uses force; Shi L increases its component parts as a rigid machine, so the difference may also change, and the bias caused by years. It is more appropriate to take good measures and determine the calibration at any time.

Here, a method for correcting the difference between 5A and 5A, and an angle error in the moving direction of the moving table 12 for correcting the measured value of the Gong Ming length will be described. With reference to Fig. 10, a description will be given of a method for automatically adjusting the seat post shaft. The measurement method using a test circuit is explained in a mode. Figure 10 (a) (b) is the method for detecting the angle error of the θ circuit board. Figure 10 (c) ~ Ce) m Page 33 C: \ 2D-CODE \ 90-02 \ 89125117.ptd V. Description of the invention (30) Drawing of assembly board. The current feed direction is tilted to the axis. Θ deviation Γ If the board moves out of the "giant deviation", it will be generated in the direction of the fairy axis. First, prepare the steward from the gantry 1 without guidance. ::: Circuit board 60, fixed χ, γ move 1 a) 0 ^ ^ ^ ^ ±,, 〇s 60 make movable; fA opens 1,112 at γ Fang Shang cui, then moves the circuit board, two-way After moving an arbitrary distance L, open holes H3 and H4. Because: the center hole. ¥ lead 軚 si, so the hole machine is in the middle of the X-ray imager: f: the circuit board after the hole is turned to make it right and left reverse. Turn, Shi ° H1 and H2 of Kungriji Temple on the road board 60 shown in Figure 10 (b) and H2 and H1 points when turning over = put on the movable table. Measure the movable table after moving it by L The seat knifes of H3 and H4 can observe the deviation of the #Xm coordinate value by more than twice. Spiritually, place the hole after turning over into the field of view of the X-ray imager. The coordinate conversion can be used to obtain the above-mentioned deviation of 2 $, and the inclination 0 can be easily obtained from L. You can use this θ memory, = the correction value when the hole is usually opened, and the software can be used to perform the angular error of the moving stage Correction π Do not use a clean circuit board, remove the printed circuit board 6 that was actually opened during normal operation, and measure the coordinates after turning it over. You can monitor the movable table 1 at appropriate intervals. Tilt in the feed direction of 2. "As for the correction of the length on the Xm axis, such as the X-ray service device, X-ray imager, and the axis of the hole, etc." 1

C: \ 2D-roDE \ 90-02 \ 89125117.ptd

Page 34 V. Description of the invention (31) > Banan = Can: ^: 具 ::: Holes are arranged at known hole intervals. "I method for correcting the centering error due to the advancement of the movable table. D Line 2 caused by unstable feeding of the clothes set = also 7 kinds. 'The Ym axis of the movable stage in the direction of movement can be mounted on the movable stage to correct it. That is, as shown in Figure 10 (c), The plates 15 and 15 are fixed in parallel with each other. The Y-axis is assembled at about 2 positions of the movable joint 12. The plate 15 is on, for example, thin gold. On the movable table 12. The small hole i5h of the mounting plate and the spoon interval h are well-known by precise measurement. Display: One or more chip removal holes 12n are formed on the moving table 12, which can be measured through the small holes i 5h of each mounting plate in the P state with X-rays. The chip ejection holes 15n may be provided in any shape, such as 2 or more corresponding 2 holes or elongate holes, corresponding to the small holes of the mounting plate 5h as shown in the figure. Also, if the surface of the (e) section 1Y-axis mounting board 15 and the movable table 12 are on the same side, it is convenient when 乂 0 can place the circuit board. = Moving and moving building 丨 2, using the X-ray imager light strategy mounting plate hole 丨 5h Ym axis coordinate, then the deviation f of the feed amount of the movable table 12 (the number of rotation of the ball screw 12b) can be determined. This deviation value can be used as a correction value. This correction value can be stored in the memory of the punching device of the hole punch to correct the feed of the movable table 12. The two points of the feed direction and the movement amount of the movable table 12 have been described above.

⑽ 1011 ⑽ 1011

V. Description of the invention (32) ’Even if the moving distance is relatively long, it does not matter. A movable table with a lower feed accuracy ratio can be used, and the reference hole drilling machine can obtain the necessary advancement. , ° 锖 Next, an effective clamp structure will be described. When the reference hole is opened, the main function of the clamp is to press the circuit board 60 in a direction opposite to the drill to prevent the mover of the circuit board 60 from being deformed. $ 茶 照 Figure 11 illustrates its detailed structure. Fig. 11 (a) (b) is a diagram showing the operation pattern of the newly constructed clip 9; (c) is a longitudinal sectional view of the structure of the original clamp 75a; and (d) is a longitudinal view of the clamp 9 of the new method. Sectional view. Xinshuang forceps 9 are located directly above the mandrel 7 and are fixed to the actuator of the air cylinder 9a fixed on the upper part of the Y moving stand 11 on which the mandrel 7 is provided. Therefore, at the time of the hole, the positional relationship on the xm Ym plane of the clamp 9 and the mandrel 7 is maintained constant. As will be described later, the clamp sometimes has a structure that can be moved horizontally when changing workpieces or batches or when changing drill bits. However, the state of the clamp when it is fixed will be described first. Except when the holes are opened, as shown in Fig. (A), the circuit boards 60 placed on the movable table 12 do not contact each other, and the clamps 9 are pulled up. Only when opening the hole ', as shown in Figure (b), the clamp 9 is lowered and pressed against the circuit board. Figure U (c) is a longitudinal sectional view of the structure of the original clamp 75a. Not for punching with 2 hole distribution. It is installed in front of the X-ray protective tube 75, and the circuit board 压 is pressed down by a driving mechanism (not shown) when opening the hole. The drill 77b on the mandrel and the axillary end makes a hole from below. The disadvantage of such a clamp 75a is that the front end of the drill 77b when it is open ·

491011 V. Description of the invention (33) ___ Press the conductor 6 2 to make it weave open and swarf 18. As the drill 77b is lifted up, the shallower cone-shaped cut pieces are still held, and the cone-shaped cut pieces 18 are cut off. The road boards are separated, so it does not cause problems. The cut debris 8 is often raised by an m to make the cut debris; 8 is also left. Because: If the son ’s hole is opened, the broken metal Λ 7 will be brought back down. In order to confirm whether the reference hole is opened correctly. / Observed by the imager, at this time, because the opening = sweat holes, the X-ray is used as the coordinate deviation. ] Zha broke his eyebrows and covered the holes to make the openings measured. Actually: Γ: = But it is a very fine and continuous residue on the conductor 62 ... It is easy to blow away, so it becomes a tricky problem. Ren Ye blows the wheat with two gases according to the cross-sectional view of FIG. 10 (d), and explains the new clamp 9 The cup-shaped clamp support 9b is fixed to the air cylinder, and it is clamped in the cup with the missing support, for example. Jiluo's place.

The shape of the clamp 9 can be accommodated at the support end of the clamp slightly protruded from the lower end of the clamp support lion:, = inside, and 1 opens a hole through which the drill bit 7b passes. As for the material of the clamp 9, \ = does not clean the circuit board 60 when it does not cause damage to the conductor 62, which is enough to move :: live ’any material. Generally, Panluo plastic is used, such as plastic and wood softened by the heat of openings. The method of using the clamp 9 will be described. The mandrel 7 and the forceps 9 are mounted on

491011 V. Description of the invention (34) Movement: The position of the plane relationship on the stage is unchanged when the hole is opened. Support:? Clamp (pin) 9 without? Hole is used with clamp screw pin 9. Fix on clamp 夹 9b. Next, use the drill bit 7b on the clamp (material). The position of the drill bit 7b 'for the hole in the central box material: Cause: ^ The number of drill holes with reference holes on the printed circuit board, on the non-scale clamp material. After f, holes are actually made in the circuit board 60. At this time, the position of the hole 7 and the drill bit 7b in the same clamp 9 are also consistent at any time. Therefore, the cut debris 1 8 is used by hundreds of people from the hole of the clamp 9 with the drill 7b, and the head 7b is on the clamp 9 If you open a deep hole, you can force a considerable number, as shown in the single-dotted dotted line in Figure ⑷. If the upper part of J = tr is prepared as a hollow paste, the cut river will be stored. The life of the drill is divided by the number of cuts " chips 18. This hollow portion 9 (1 may also be provided on the clamp support 9b. In addition, a hole is opened in the clamp support 9b, and it is in phase with the hollow portion 9d. If it is connected, you can try to remove the cut debris 18 with the attraction of air, etc., and remove it through this hole. Because the debris 18 cut with this clamp 'cannot completely separate the conductor 62, it can be completely prevented, And i, at the same time, the position of pressing the circuit board 60 can be located very close to the drill 7b, so it also has the effect of preventing excessive stress from being applied to the circuit board 60 at the same time. Page C: \ 2D-GODE \ 90-02 \ 89125117.ptd V. Description of the invention (35) That: The fruit of the same name uses the same nominal mouth Diameter drill bit 7b 'Use of the tongs can be almost unchanged until the clamps can be used continuously and used as a reference hole 2 wear and tear extended to exceed the limit of use. There are about 3 types of range, usually the most commonly used is 3 holes ~ 5 sides, .t. Λ Λ ° ^ ^ ^ ^ ^ Change the relative position of the clamp to the drill bit 7b. The horizontal movement of the clamp can be used for drilling operations: even if the batch number of the job is different, the clamp is The relative position diameter is different, as long as the misalignment gap + Α position is changed without changing the clamps. During the operation: the change of the relative position of the line ^: f is not performed during the actual drilling operation: it is just for example After replacing the drill, etc., the substrate material of the printed circuit board, which is the object of preparation for your work, is the same as above, using thermosetting glass, p_this & Μ and # yI I% ΑΑ-type lice tree month Due to its difficult-to-cut characteristics ^ 2 and shortened life, the drill bit 7b must be replaced quite often. Two "replacement", such as shown in Figure 1Ua) and so on, because the drill fixture 7a is usually pulled out and replaced with a new one. Drill bit 'so if clip 9 in Just above the head, poor visibility will hinder replace the drill bit. Therefore, in order to change the drill, it is common to equip a moving mechanism that can move the clamp horizontally from just above the drill to the waiting position. If some additional functions are added to this moving mechanism, so that the relative position of the clamp to the drill bit 7b can be changed, the cost to be added is very limited. Next, the clamp 39 and the clamp support 3 9 b with a moving mechanism will be described with reference to FIG. 12. Fig. 12 (a) shows the clamp 39 and the clamp support 39b in a sectional view, and

V. Description of the invention (36) Figure 11 (d) Structure Figure 12 (b) ~ Figures. (2) The pattern of the relative position of the clamp 39 and the drill bit is shown in Figure 1 2 (a) Each tb, for example, the Ym axis parallel clamp push support 39b can be oriented in the direction of the arrow in the figure, the action part is connected, and the upper part of the central axis Although not shown, the pump 9a moves downward to hold the printed circuit board. The moving mechanism is a linear stirrup. It can be used to drive the air guide support clips. It can be driven by various well-known movement methods, such as the well-known example of moving in a plane that does not have two axes at right angles, as above. Straight, spring movement is also possible, for example, circular movement type = An Nong on Jiaji Zhina b. The installation of the second installation / 'In this figure, there is a stage attached to the clamp support # 具 咖啡] female sad 4 as the upper and lower receiving part, insert the clamp 39, and fix it with a small screw pin C 3 9 7 such a simple structure . In order to enable the clamp 39 to open a plurality of holes', the clamp 9 is larger than the clamp 9 described previously (see Fig. 丨). As shown in Figs. 12 (b), (c), (d), and (e), the clamp supporter 39b and the drill bit 7b can be moved to, for example, four positions and held still.

The clamp 39 is at a position of Fig. 12 (b), and a drill bit 7b having a nominal diameter (diameter) D1 is used to make a hole. If the clamp support is in this position, a drill bit 7b with a nominal diameter of 〇1 can be used. Similarly, in the position of Fig. 12 (c), the clamp 39 corresponds to a drill bit 7b with a nominal diameter of D2. At the position of Fig. 12 (d), a drill bit 7b with a nominal diameter of D3 can be used to open the hole. There are 3 types of nominal diameter drills 7b. Increase the stop of clamp 39

C: \ 2D-CODE \ 90-02 \ 89125117.ptd Page 40 叼 1011 V. Description of the invention (37) Bit n / v can also correspond to more types of nominal diameter drill bits. Open: also; 0 is not a replacement position. 'The clamp 39 is completely moved from above the drill 7b, which means that the clamp 39 is moved to the rotation of the head 7b. The car πfield AA, the bamboo M does not prevent you from drilling, Pull up the drill 7b up to the replacement work of the jig h equipped at the front end of the shaft 7. In addition, even when the majority of the workpieces are used in the case of eighteen jealousy / one open hole, Min Liang / ten # ^ ^ drills with the same diameter as A *, there are many holes on the fire push, Clip I # Μ can be greatly increased with brother's life. The resistance of π 乂 and orange [Inventive effect] As explained above, by introducing multi-point door holes on multiple machines: Xi :: Brush the circuit board to open the reference hole ^ ^ όΑ ^ ^ ^ I know that it can respond to a wide range of circuit boards; the openings are made into ..., and you can expect to improve the way of the hole after the next step, the accuracy of the circuit board can be improved, and you can look forward to further improve the multi-layer electrical 2 load 2 Using software to correct the deviations that accompany the movement of the movable table, so that even if it is relatively easy in structure = 'Floor', a highly accurate reference hole can still be obtained. Cut: And the improvement of the structure of the clamp * ′ can be expected that the cut debris is indeed cut, and the problem of reducing the coordinate observation when confirming the position of the opening is very effective. If the clamp support can be moved independently, 纟 change the drill bit ‘No, cause traps I’ reduce the frequency of changing clamps, which is expected to improve convenience

C: \ 2D-00DE \ 90-02 \ 89125117.ptd Page 41491011 V. Description of the invention (38) [Explanation of component number 1 Hole machine 2 Frame 3 Stand 4 X-ray generator 4a X-ray generator 5 X-ray protective tube

5 a 孑 L 6 X-ray imager 7 Mandrel 7 a Clamp 7b Drill 7c Air cylinder 8 Mandrel holder 9 Clamp 9 a Air cylinder 9b Clamp support 9c Clamp bolt 10 X mobile stand 11 Y mobile stand 12 Moving table linear guide (LM guide ball screw 1 Oa, 11 a, 12a 10b, lib, 12b 13 (1, 2 iL) are not chip holes

C: \ 2D-CODE \ 90-02 \ 89125117.ptd Page 42 491011 V. Description of the invention (39) 13a (3, 4 holes) Chip removal holes 14 X-axis mounting plate 15 Y-axis mounting plate 14h 14s 16 16a 17 18 31 32, 39, 15h Small holes in the mounting plate, 1 5 s small screws (1,2 holes), hole positions (3, 4 holes), hole positions, operator positions (blank arrows), cut pieces (both sides) For circuit board) (reference hole) punching machine 32a CCD imager clamp 39b clamp support 3 9c clamp screw 50 mechanical coordinate system (Xm Y m

Zm maple origin P1, P2, P3, P4 m D P4 guide mark pS center of gravity of the guide sign 6: ί f (angle formed by U axis and X axis) 60 multilayer printed circuit board)

61 、 61A 6 1 a, 6 1 a A 62 conductor 63 (insulation) substrate 64 pre-mold two-sided circuit board 1 printed circuit of a single circuit board

491011 V. Description of the invention (40) 64a, 6 4 a A (with reference 3 6 5 '65A, 65B (for tenon) base 66 ^ P guide marks 67, H reference hole 68 ^ 68A joint assembly plate 6 8a, 68aA, 68aB Positioning pin 69 Maximum circuit board shape 6 9a Minimum circuit board shape 70 Affective range 71 Hole puncher with 2 hole distribution method 71a Frame 72 Stand 73 X moving frame edge 73a Linear guide 73b Ball screw 74 X-ray generator 74a X-ray generator tube 75 X-ray protective tube 75a Clamp 76 X-ray imager 77 Mandrel 77b Drill 78 Y mobile stand 78a Linear guidance

Bir I! C: \ 2D-CODE \ 90-02 \ 89125117.ptd Page 44 491011

C: \ 2D-CODE \ 90-02 \ 89125117.ptd Page 45 Brief Description of Drawings This is a perspective view showing the structure of the (reference hole) hole punching machine according to the embodiment of the present invention in a pattern. = 2 is the front of the (reference hole) punching machine according to the embodiment of the present invention, which is called w; f is shown in the figure and a side view. = 3 is a plan view showing the scale k of the (reference hole) hole punching machine according to the embodiment of the present invention. FIG. 4 is a schematic view showing a structure of a movable table of a hole punch. Fig. 5 is a projection view showing the movement of γ movement of an X-ray imager and a mandrel on which a hole punch is placed. / FIG. 6 is a schematic diagram illustrating a principle of distributing and opening holes for a plurality of hole standards. In order to open the guide holes by the multi-point distribution method, the circuit board and the joint assembly board on the two sides before the joint are explained in a schematic diagram of the joint step. Kong Ming's perspective view of the structure of the opening 柃 on the separate two-sided circuit board before the tenon. Fig. 9 shows the importance of the hole punching machine shown in Fig. 8. Fig. 10 illustrates a schematic diagram of a mobile station's visitor party L4. Correction method of deviation between U direction and movement amount, perspective view and cross-sectional view of structure of 11 type shout clamp. _ A schematic diagram showing the clear function of the clamp moving horizontally. FIG. 13 is a schematic diagram illustrating the structure of a multilayer printed circuit board. 14 is a cross-sectional view illustrating the structure of a multilayer printed circuit board. F1 Γ 5:: Γ A schematic diagram of the principle of a 2-hole distribution method (reference hole) punching machine and a plan view of a coin machine.

Page 46 491011 Brief description of the drawings Figure 16 is a view of the original 2-hole distribution method (reference hole) hole punching machine, such as a view and a side view.

Bii C: \ 2D-CODE \ 90-02 \ 89125117.ptd Page 47

Claims (1)

4910H VI. Scope of patent application U — A type of quasi-hole punching machine, which features A is equipped with a reference hole punching machine frame set with ancient & mechanical coordinates of Xm axis and Ym axis for observation Formed on: a stand; the components of the board on the conductor layer of the circuit board are printed on the printed circuit board; the observation device; the feeding position of the changed position; the clothing position and the relative position of the opening device. Exit: set the observed coordinates of the above-mentioned guide mark, calculate; l position: control device that controls the above-mentioned feeding device by mistake, based on at least 3 points of the above-mentioned guide mark, it is regarded as a unit particle size. Shi AA goes to the liver ^ Quoting 'You Ping you T, +, γ: the position of the center of gravity as the origin of the coordinates, at the seat f J i ^ ^ f I spoon X car, and parallel to the above ^ The Y-axis of the Y-axis of the axis is pressed on the XY axis' ，, and the coordinate values of the above-mentioned guide signs are displayed. The same number of guides are used, and the same as the design plan "ΐίϊ Γ <重 ： 位 ΐ ΐ 为 座 ΐ ί :: I would like to think of a quasi-hole as a wide-ranging replacement of the unit particle. When the f value of the uv coordinate axis that intersects at right angles is used to display the coordinate values of the imaginary reference holes, the center of gravity of the guide distance and the center of gravity of the imaginary reference hole are overlapped, and the center of gravity is used as the rotation center, so that the above The UV coordinates are rotated to determine the coordinates of the above reference holes of the printed circuit board. 2 · As for the reference hole opening machine of the item 丨 in the scope of patent application, where the above u axis The angle formed by the patent scope on page 48 and the above-mentioned lambda axis "in the above mentioned phase" makes the square of the distance between the quasi-holes and the guide hole corresponding to the minimum 3 corresponding to the minimum 3 Angle: In addition to all the above-mentioned guides to observe the range 1 or 2 of the range, 隹 4 Γ has a hole punching machine in the visible light field, where the above 4 · a reference hole M is called X Photography device. And Ym-axis machines ^ ,,,,, and are set to have xm units that intersect at right angles; the M-hole opening machine frame of the machine seat 利 is used to measure the opening of the circuit board. It is an observation device for guiding signs printed at least 3 points on the top, +, and p ^ as constituent elements of a multilayer printed circuit board; an opening device having a reference hole on a printed circuit board; ί The feed direction in which the X1 axis is parallel to the ^ axis can change the relative position of the above-mentioned observation device and the hole-opening device, and the feeding device is characterized by: a frame ^ ί The clamp support and the mandrel of the hole-opening device are arranged in the same movement, and the clamp material that has not yet been opened is arranged at a predetermined position through the clamp support. ^ Use a drill hole for the reference hole above the clamp. Used as a clamp after making holes in the clamp material. ~ 5 · ^ The reference hole opening machine for item 4 of the scope of patent application, in which the above-mentioned push-push props are moved in a plane at right angles to the above-mentioned Zm axis, and are used to modify relative position. 6 · —A method of correcting the feed position, which is fixed by a reference hole punching machine frame set with a mechanical coordinate system of Xm axis and Ym axis at a right angle to the parent C: \ 2D-CODE \ 90-02 \ 89l25117.ptd Page 49 VI. Patent application frame; used to observe at least 3 s of printed circuit board components formed on the conductor layer of the circuit board printed on The above-mentioned printed circuit board door M guide observation sign; an observation device having an upper mandrel and a "hole" hole device; the printed circuit board and the feeding direction of the above-mentioned viewing device, which can change the upper feeding device And the relative positions of the clothes opening and the above-mentioned opening device are based on the position of the opening made by the observation device, and the coordinates of the above-mentioned guide mark are calculated based on the coordinates of the above-mentioned guide mark, which is 0 + _ spoon. Position correction method, which is: the feeding of the above-mentioned feeding device of the machine is set at the second place at any interval placed on the above-mentioned loading section 2: the test circuit board on the moving table, and then, it faces in the direction of Ym Move the above ;: = 'f The above is fixed to the movable table at any interval, the left and right are reversed, and placed, and then the moving base is placed on top of the second reference butterfly observation, and the Xm direction = After distance L, use Observe that when the feed of the movable table is set to =, set one or two " 乩 as the setting to correct the movable sample ;: white: positive connection, memorized in the above control device 7. If the patent application is applied A: feed position . ^ On the right and left of the movable table, the right method of its feed position, in which the board, 2 pieces of assembly are placed parallel to the observation axis of the above observation position, the position of the small hole of the assembly plate is measured, and the observation value is memorized C: \ 2D-QDE \ 90-〇2 \ 89] 25] 17.ptd Page 50 491011 C: \ 2D-CODE \ 90-02 \ 89125117.ptd Page 51