KR102212847B1 - Air adsorption and air discharge type protective tape attachment apparatus - Google Patents

Abstract

Provided is an air adsorption and air discharge type protective tape attachment apparatus. The present invention includes: a first transfer unit provided with a first carriage slidably assembled to a first slide of a first motor fixedly installed on an upper end of a body frame to reciprocally move the first carriage in the y-axis direction by driving force of the first motor; a second transfer unit provided with a second carriage slidably assembled to a second slide of a second motor fixedly installed on the first carriage to reciprocally move the second carriage in the x-axis direction by driving force of the second motor; a third transfer unit provided with a third carriage slidably assembled to a third slide of a third motor fixedly installed on the second carriage to reciprocally move the third carriage in the z-axis direction by driving force of the third motor; and a rotating part provided with an air head coupled to a rotary table of a rotary motor fixed to the third carriage to rotationally move the air head about the z-axis, wherein the air head includes a plurality of vacuum suction holes communicating with vacuum suction lines, and includes a plurality of air discharge holes connected to air discharge lines.

Description

Air adsorption and air discharge type protective tape attachment apparatus}

The present invention relates to a device for attaching a protective tape, and more particularly, in a state where the protective tape adsorbed and transported by the air adsorption force is placed directly above the core element component mounted on a substrate, without damage or impact to the core element component. It relates to an air adsorption and air discharge type protective tape attachment device that performs a process of attaching a protective tape by pressing an air discharge method to cover and protect it.

In general, it is a recent situation that a high pin of a semiconductor package, which is a core component, is required in accordance with the trend of high functionality and high capacity of electronic and information devices.

In response to such multi-terminalization demand, many chip-scale type semiconductor packages are being developed, and a representative of them is a BGA (Ball Grid Array) package.

In the BGA package, bumps, which are external terminals, are arranged in an array shape on a substrate to enable surface mounting, and most of them use a flexible (flexible) substrate.

In the case of such a BGA package, since a number of chips are arranged on a thin film and mounted on the substrate and moved or worked together with the substrate, there is a high risk of bending or damage due to external influences. There is a high possibility that the core parts or devices that are present will be damaged or contaminated with foreign substances.

Therefore, in order to prevent damage while protecting core components from the external environment, the board on which the semiconductor package of the chip scale type such as the BGA package is mounted is in the form of attaching a protective tape when moving between processes. At this time, a protective tape is attached. The work is performed by a separate tape attachment device.

In other words, the protective tape from which the release paper is separated is adsorbed and fixed to the lower part of the head provided with the vacuum adsorption force and descends directly from the top to the bottom of the core component to be protected, attaching the adhesive surface of the protective tape to the main board and The component, which is a component, was covered and protected.

However, when the adhesive surface of the protective tape using the head is bonded to the substrate, the external force transmitted from the head can damage the core component or element, which is the object to be protected, while direct impact force is transmitted to it, resulting in frequent product defects. There was a problem that occurred.

(Patent Document 1) KR2000-0043519 A

Accordingly, the present invention is to solve the above-described problems, and the object of the present invention is to provide a process of attaching a protective tape to be transported by vacuum adsorption so as to cover and protect the core elements mounted on the substrate by pressure by air discharge. It is intended to provide an air adsorption and air discharge type protective tape attachment device that can be automated.

The technical problems to be achieved in the present invention are not limited to the technical problems mentioned above, and other technical problems that are not mentioned will be clearly understood by those of ordinary skill in the technical field to which the present invention belongs from the following description. I will be able to.

As a specific means for achieving the above object, a preferred embodiment of the present invention is an apparatus for attaching a protective tape to cover and protect an electronic component mounted on a substrate, comprising: a main frame; A first reciprocating belt that is slidably assembled to a first run of the first motor fixed on the upper end of the main frame, and moves the first reciprocating belt in the y-axis direction by the driving force of the first motor. 1 transfer part; Equipped with a second reciprocating belt that is slidably assembled to a second run of the second motor fixedly installed on the first reciprocating belt and moves the second reciprocating belt in the x-axis direction by the driving force of the second motor. Second transfer unit; Equipped with a third reciprocating belt that is slidably assembled on a third runway of a third motor fixed to the second reciprocating belt, and moves the third reciprocating belt in the z-axis direction by the driving force of the third motor. The third transfer unit; And a rotating part that has an air head coupled with a rotating stand of a rotating motor fixedly installed on the third reciprocating stand and rotates the air head about a z-axis. Including, the air head includes a plurality of vacuum suction holes connected in communication with the vacuum suction line, and a plurality of air discharge holes connected in communication with the air discharge line, the air by the vacuum suction force of the vacuum suction hole A protective tape temporarily adsorbed on the lower surface of the head is placed directly above the electronic component, and then falls from the lower surface of the air head by air discharge output discharged through a plurality of air discharge holes when the vacuum adsorption force is released. It provides an air adsorption and air discharge type protective tape attaching device, characterized in that the protective tape is attached to the substrate by non-contact pressure.

At this time, the air head has a plurality of first branch lines branching from the first main line connected to the air discharge line in the body, and a plurality of branching lines from the second main line connected to the vacuum suction line. A body block forming two second branch lines inside the body, a plurality of air discharge holes corresponding to respective discharge ends of the plurality of first branch lines are exposed, and corresponding discharge ends of the plurality of second branch lines are exposed. It may include a protruding block protruding in the same shape as the protective tape on a lower surface of the main block to expose a plurality of vacuum suction holes.

At this time, the plurality of air discharge holes are formed through the central region of the protruding block, and the plurality of vacuum suction holes are formed outside the protruding block so as to surround the outer edge of the region through which the plurality of air discharge holes are formed. It can be formed through through the edge.

At this time, the protective tape includes a flatness control unit that adjusts the flatness of the air head to which the protective tape is temporarily adsorbed and fixed, and the flatness control unit includes an end of an upper bracket and an upper hinge pin having an upper end fixed to the rotating table. The rotationally assembled intermediate bracket, a first micrometer that is fixedly installed to the upper bracket and vertically moves the lower contact end in contact with the upper surface of the other end of the intermediate bracket during rotation, and the lower part of the upper bracket The upper pin is connected and fixed to the surface so that the lower end is in contact with the head of the upper pin and the upper pin disposed in the through hole of the intermediate bracket, and the upper end is in contact with the intermediate bracket to elastically move the intermediate bracket toward the upper bracket. A lower bracket including at least one supporting upper elastic body, one end of the intermediate bracket orthogonal to the upper hinge pin and the other end being assembled to be rotatable through a lower hinge pin, and a horizontally fixed installation to the lower bracket The second micrometer has a cross-sectional shape that becomes thinner toward the front end when rotating, and moves the contact bar of a certain length disposed between the intermediate bracket and the lower bracket back and forth, and the lower end is on the upper surface of the lower bracket. At least one that is fixedly connected to the lower pin disposed in the other through hole of the intermediate bracket, and the upper end of the lower pin is engaged with the head, and the lower end is in contact with the intermediate bracket to elastically support the lower bracket toward the intermediate bracket. It may include a lower elastic body of.

In this case, a substrate support portion including a vertical frame having a seating jig at an upper end so as to be in contact with the lower surface of the substrate in the vicinity of the main frame, and the substrate support portion is defective in the protective tape adsorbed and fixed to the air head When judged, a tape adhesive plate to which the adhesive surface of the defective protective tape is attached, a pair of support rods having a spring member and a pair of bush members supporting the pair of support rods up and down reciprocating It may include.

At this time, it includes a substrate support unit including a vertical frame having a seating jig at an upper end so as to be in contact with the lower surface of the substrate in the vicinity of the main frame, and corresponding to the air head provided in a pair of left and right in the vicinity of the vertical frame It includes a pair of vertical sensing bars arranged directly under the air head so as to be elastically supported upwards by a spring member, and a pair of head sensing sensors that generate a sensing signal when contacting each lower end of the pair of vertical sensing bars. can do.

According to the preferred embodiment of the present invention as described above has the following effects.

Electronic parts generated during the tape process by attaching the protective tape temporarily vacuum-adsorbed on the lower surface of the air head without direct contact with the head and electronic parts to cover and protect the core elements mounted on the board without damage by pressing force by air discharge. By fundamentally preventing product defects due to the impact or damage of the product, the product yield can be increased, and the process of attaching the protective tape can be automated to increase work productivity.

1A, 1B, and 1C are an overall perspective view showing an air adsorption and air discharge type protective tape attachment device according to a preferred embodiment of the present invention.
2A and 2B are perspective views showing a rotating part, an air head, and a flat control part provided in the air adsorption and air discharge type protective tape attachment device according to a preferred embodiment of the present invention.
3 is a perspective view of an air head provided in an air adsorption and air discharge type protective tape attachment device according to a preferred embodiment of the present invention.
4A and 4B are exploded perspective views illustrating a flat control part provided in the air adsorption and air discharge type protective tape attachment device according to a preferred embodiment of the present invention.
5 is a longitudinal sectional view showing a flat control unit provided in an air adsorption and air discharge type protective tape attachment device according to a preferred embodiment of the present invention.
6A and 6B are configuration diagrams showing an operating state of a flat control unit provided in an air adsorption and air discharge type protective tape attachment device according to a preferred embodiment of the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings in which a person of ordinary skill in the art can easily implement the present invention. However, when it is determined that a detailed description of a related known function or configuration may unnecessarily obscure the subject matter of the present invention, the detailed description thereof will be omitted.

In addition, the same reference numerals are used for parts having similar functions and functions throughout the drawings.

In addition, throughout the specification, when a part is said to be'connected' to another part, it is not only'directly connected', but also'indirectly connected' with another element in the middle. Include. In addition, "including" a certain component means that other components may be further included, rather than excluding other components unless specifically stated to the contrary.

The air adsorption and air discharge type protective tape attachment device 100 according to a preferred embodiment of the present invention covers the electronic component P mounted on the substrate S, as shown in FIGS. 1A, 1B and 1C. The body frame (1) so that the protective tape (T) to be protected is first adsorbed and transferred by vacuum adsorption method, and then the protective tape falling toward the substrate on which the electronic component is mounted is pressurized by the air discharge method so that it can be attached to the substrate. A first transfer unit 10, a second transfer unit 20, a third transfer unit 30, a rotation unit 40, a flatness adjustment unit 50, and an air head 60 may be included.

The main frame 1 is a vertical structure having a certain height in which the lower end is fixedly installed on the floor surface, and the first transfer part 10 is horizontally and stably fixed to the upper end of the main frame. 2) may be included.

The first transfer unit 10 is a first reciprocating belt 14 that is assembled to be slidably movable in the y-axis direction on a first slide 13 coupled with a first motor 12 fixed horizontally on the upper end of the main frame. ), the first reciprocating table 14 reciprocates in the y-axis direction by the driving force of the first motor 12.

The first reciprocating belt 14 includes at least one first sensing bar 15, and the first reciprocating belt is a y-axis on one side of the first slide 13 corresponding to the end of the first sensing bar. It may include a pair of first detection sensors (15a, 15b) fixedly spaced apart from each other at a predetermined interval so as to detect a preset front-rear position when reciprocating in the direction.

Controls the movement of the first reciprocating band by turning on/off the driving of the first motor according to a detection signal of a pair of first detection sensors that detects the first detection bar 15 that is moved together with the first reciprocating belt can do.

At this time, as the pair of first detection sensors 15a are movably assembled along a moving rail provided on one side of the first slide, the installation position is adjusted according to the reciprocating movement distance and the stop position of the first reciprocating platform. Can be changed.

The second transfer unit 20 is assembled to be slidably movable in the x-axis direction on a second slide 23 coupled with a second motor 22 fixed horizontally to the first reciprocating table 14 of the first transfer The second reciprocating belt 24 is reciprocally moved in the x-axis direction orthogonal to the moving direction of the first reciprocating belt by the driving force of the second motor 22. .

The second reciprocating belt 24 includes at least one second sensing bar 25, and the second reciprocating belt is an x-axis on one side of the second slide 23 corresponding to the end of the second sensing bar. It may include a pair of second detection sensors (25a, 25b) fixedly spaced apart from each other at a predetermined distance so as to detect a preset left and right position when reciprocating in the direction.

Controls the movement of the second reciprocating band by turning on/off the driving of the second motor according to a detection signal from a pair of second sensing sensors that senses the second sensing bar 25 that moves together with the second reciprocating belt can do.

At this time, as the pair of second detection sensors are movably assembled along a moving rail provided on one side of the second runway, the installation position can be varied according to the reciprocating movement distance and the stop position of the second runway. have.

The third transfer unit 30 is assembled to be slidably moved in the z-axis direction to a third runway 33 coupled with a third motor 32 fixedly installed to the second reciprocating table 24 of the second transfer unit. By having the third reciprocating belt 34 to be reciprocated, the third reciprocating belt 34 is reciprocated in the z-axis direction orthogonal to the moving direction of the second reciprocating belt by the driving force of the third motor 32. .

The third reciprocating belt 34 includes at least one third sensing bar 35, and on one side of the third slide 33 corresponding to the end of the third sensing bar, the third reciprocating belt is z-axis It may include a pair of third detection sensors 35a and 35b fixedly spaced apart from each other at a predetermined interval so as to detect a preset vertical position when reciprocating in the direction.

Controls the movement of the third reciprocating band by turning on/off the driving of the third motor by sensing signals from a pair of third sensing sensors that detect the third sensing bar 35 that is moved together with the third reciprocating band. can do.

At this time, as the pair of third detection sensors are movably assembled along a moving rail provided on one side of the third slide, the installation position can be varied according to the reciprocating movement distance and the stop position of the third reciprocating platform. have.

Here, the third motor 32 is provided as a driving motor that generates rotational driving force of the screw member in a forward or reverse direction when power is applied, and the third reciprocating belt has a female screw part screwed to the screw member and the third reciprocating It can be made of a movable structure that is assembled to be slidably moveable to the base.

In addition, the first motor 12 and the second motor 22 are composed of a magnetic plate whose polarity is switched when power is applied and a core wound with a coil, and the first and second slides are formed by the interaction between the magnetic flux of the coil and the magnetic flux of the magnetic plate. It may be provided with a linear motor for linearly reciprocating the first and second reciprocating belts assembled to be slidably movable in the.

The rotating part 40 includes a rotating table 43 which is rotated at a predetermined angle with respect to the z-axis by being coupled with a drive shaft of a rotating motor 42 fixedly installed to the third reciprocating table 34 of the third transfer unit. , The rotary table 43 has an air head 60 connected in communication with each of the vacuum suction line L1 and the air discharge line L2 to selectively generate vacuum suction force and air discharge line. The air head 60, on which the protective tape is temporarily adsorbed and fixed to the lower surface by the rotation of the motor, can be rotated about the z-axis together with the rotating table.

As shown in Figs. 2A and 2B, the rotating table 43 is made of a block body having a substantially rectangular cross-section, and includes a central sensing bar 45 on one side of the block body, and the left and right sides of the block body An air head that includes a pair of side detection bars 46 each provided with a side detection bar 46, and is positioned parallel to the protective tape on one side of the rotation motor 42 corresponding to the center detection bar ( A central sensor (45a) for detecting the central sensing bar is fixedly installed to check the alignment reference position of 60), and the rotational table is on both left and right sides of the rotation motor 42 corresponding to the pair of lateral sensing bars 46 It may include a stopper detection sensor (46a) for detecting the side detection bar to control the excessive rotational movement of (43).

When the central sensing bar 45, which is moved along with the rotational movement of the rotating table, is detected by the central sensor 45a, the alignment of the air header for adsorbing and fixing the protective tape T by the sensing signal of the central sensor is approximately They coincide with the attachment positions to be attached to cover the electronic components mounted on the board.

And, when any one of the left and right side detection bars is detected by the stopper detection sensor during the rotation movement of the rotation table, the rotation drive of the rotation motor is stopped and the rotation movement of the rotation table is limited to within 180 degrees, thereby being rotated along with it. Prevents twisting with components such as airheads and adjacent lines and power cables.

The lower surface of the air head 60 includes a plurality of vacuum suction holes 64 connected in communication with the vacuum suction line L2 to generate a vacuum suction force for temporarily fixing the protective tape, as shown in FIG. 3. In addition, it may include a plurality of air discharge holes 63 which are connected in communication with the air discharge line L1 to discharge high-pressure air directly below the adhesive surface of the protective tape to adhere to the substrate.

The air head 60 forms a first main line 63a connected in communication with the air discharge line Ll, and a plurality of first branch lines 63b branched therefrom, and the vacuum suction A body block 61 that forms a second main line 64a connected to the line L2 in communication and a plurality of second branch lines 64b branched therefrom, and the plurality of first branches The lower portion of the main block is to expose a plurality of air discharge holes 63 corresponding to each discharge end of the line, and a plurality of vacuum suction holes 64 corresponding to each discharge end of the plurality of second branch lines. It may include a protruding block 62 protruding on the surface according to the shape of the protective tape.

At this time, the plurality of air discharge holes 63 discharge high-pressure air downward toward a region corresponding to the central portion of the protective tape T, and the protruding block () to transmit an external force for attaching the protective tape to the substrate ( 62) is formed through the longitudinal direction of the protective tape, and the plurality of vacuum adsorption holes 64 have the plurality of air discharge holes so as to adsorb and fix an area corresponding to the outer edge of the protective tape. It is preferable to penetrate through the outer edge of the protruding block so as to surround the outer edge of the central region to be penetrated.

The inner diameter of the air discharge hole 63 is relatively larger than the inner diameter of the vacuum suction hole 64 so that high-pressure air delivered through the air discharge line can be discharged downward at a high speed and in a large amount. Can be.

Accordingly, in the process of temporarily adsorbing and fixing the protective tape on the lower surface of the air header, the air discharge line L1 is closed by a control signal from the control unit, while the vacuum suction line is opened, so that the air discharge hole is opened. It is adsorbed and fixed to the lower surface of the air header by the vacuum adsorption force generated in the vacuum adsorption hole formed in the outer region to be formed.

In the process of attaching a protective tape to the substrate, which is temporarily adsorbed and fixed to the lower surface of the air header 60 and located directly above the electronic component of the substrate, the air discharge line L1 is opened by a control signal from the controller. While the vacuum suction line is transferred to a state, the vacuum suction line is converted from an open state to a closed state, and the closed state of the vacuum suction line L2 is maintained for a predetermined time set in advance.

Accordingly, the protective tape temporarily adsorbed and fixed by the vacuum adsorption force of the vacuum adsorption hole formed on the outer rim of the protruding block of the air head releases the vacuum adsorption force, and at the same time, the high-pressure air discharged from the air discharge hole is released for a predetermined period of time. While being maintained, the adhesive surface on which the adhesive is applied to the lower surface of the protective tape is adhered to the substrate by the discharge pressure of the air delivered to the lower part so as to cover and protect the electronic component without generating bubbles.

Here, the plurality of vacuum adsorption holes 64 are directly connected to the vacuum suction line L2 so that when the protective tape is attached, the vacuum adsorption force is simply temporarily stopped, but is not limited thereto, and the plurality of vacuum adsorption holes ( 64) is connected to another air discharge line along with a vacuum suction line through a three-way, not shown, thereby selectively generating a vacuum suction force through the vacuum suction line by a control signal from the control unit or the other air discharge line. Through the vacuum adsorption hole in which the vacuum adsorption force has been released, air may be discharged downward toward the protective tape.

In addition, air discharge through a plurality of air discharge holes formed in the central region of the lower surface of the protrusion block of the air head 60, and a plurality of air discharge holes formed along the outer edge of the protrusion block 62 to surround the formation region of the air discharge hole. Air discharge through the three vacuum suction holes may be sequentially performed at a time difference by a control signal from the controller.

In this case, during the attaching process of the protective tape, the substrate is attached to the central region of the protective tape by the air discharge output discharged through the air discharge hole formed in the central region of the air head, and then discharged through the vacuum suction hole. As the substrate attaching operation to the outer edge of the protective tape is sequentially performed by the air discharge output, air bubbles can be prevented between the contact surface of the protective tape and the substrate.

On the other hand, as shown in Figures 4a, 4b and 5, it may include a flatness adjustment unit 50 for adjusting the flatness of the air head 60 to which the protective tape is temporarily adsorbed and fixed. By maintaining the flatness on the lower surface of the airhead by the unit and the upper surface of the substrate at all times, when the protective tape is attached, it can be accurately attached to a predetermined position of the substrate without generating air bubbles between the substrate. will be.

This flatness adjustment part 50 includes an upper bracket 51 having an upper end fixed to one side of the rotating table 43, and one end is rotated through the end of the upper bracket and an upper hinge pin 51a. A first micrometer that includes an intermediate bracket 52 that is assembled to be possible, and is fixedly installed to the upper bracket so as to move the lower contact end 53a in contact with the upper surface of the other end of the intermediate bracket when rotating. 53), and includes an upper pin 58a disposed in the through hole of the intermediate bracket by having an upper end connected and fixed to the lower surface of the upper bracket, and the lower end is in contact with the head portion of the upper pin to be engaged And, including at least one upper elastic body (56a) such as a coil spring that is in contact with the intermediate bracket and elastically supports the intermediate bracket toward the upper bracket, according to the rotation amount of the first micrometer The upper hinge pin is used as the center of rotation, and the intermediate bracket is rotated at a certain angle together with the air head to which the protective tape is temporarily adsorbed and fixed.

In addition, it includes a lower bracket 54 in which one end of the intermediate bracket perpendicular to the upper hinge pin and the other end thereof are rotatably assembled via a lower hinge pin 52a, and fixed horizontally to one end of the lower bracket. It is installed and has a cross-sectional shape that decreases in thickness toward the front end (57b) when rotating, and moves the contact bar 57 of a certain length disposed between the intermediate bracket 52 and the lower bracket 54 back and forth. It includes a 2 micrometer 55, and includes a lower pin 58b that is connected and fixed to the upper surface of the lower bracket to be disposed in another through hole of the middle bracket, and the upper end of the lower pin When the second micrometer is rotated, including at least one lower elastic body (56b) such as a coil spring that contacts the upper end and is connected and the lower end is in contact with the middle bracket and elastically supports the lower bracket toward the middle bracket. In accordance with the amount of rotation, the lower hinge pin orthogonal to the upper hinge pin is used as the center of rotation, and the lower bracket is rotated at a certain angle with the air head temporarily adsorbed and fixed to the lower surface of the lower bracket.

At this time, the first micrometer 53 is detachably coupled to a mounting portion protruding from the upper surface of the upper bracket, and the second micrometer 55 is detachably attached to a mounting portion protruding from one end of the intermediate bracket. It is coupled to be possible and is connected to the locking groove (57a) formed in the other end of the contact bar.

The contact bar is made of a plate of a certain length having a cross-sectional shape that becomes thinner toward the tip, and interfacing with the plane of the contact member on a semicircular cross-section disposed in a recess formed in a semicircular cross-section on the upper surface of the lower bracket. It is desirable.

It is preferable that upper and lower guide grooves are respectively recessed on the lower surface of the intermediate bracket and the upper surface of the lower bracket corresponding to the contact bar so as to guide the forward and backward movement of the contact bar.

That is, as shown in FIG. 6A, when the first micrometer is rotated in one direction with respect to the vertical axis A1 and the contact end of the first micrometer is lowered, the intermediate bracket with respect to the upper bracket is The upper hinge pin is rotated in a counterclockwise direction (A3) in the drawing with the rotation axis A2, and at this time, the gap between the upper bracket and the intermediate bracket is widened, so that the upper elastic body is elongated to generate an elastic restoring force.

On the other hand, when the contact end is raised by rotating the first micrometer in the reverse direction, the intermediate bracket is rotated clockwise with respect to the upper bracket by the elastic restoring force of the upper elastic body.

Accordingly, in proportion to the amount of rotation of the first micrometer, the air head together with the intermediate bracket rotates at a certain angle to adjust the flatness of the lower surface on which the protective tape is adsorbed and fixed.

In addition, as shown in FIG. 6B, the second micrometer is rotated in one direction with respect to the horizontal axis B1, and the contact bar interposed between the middle bracket and the lower bracket is connected to the second micrometer. When moving forward, the lower bracket rotates in a counterclockwise direction (B3) in the drawing with the lower hinge pin as a rotation axis (B2) with respect to the intermediate bracket, and at this time, the gap between the intermediate bracket and the lower bracket is widened and the lower bracket As the elastic body is elongated, it generates an elastic restoring force.

On the other hand, when the second micrometer is rotated in a reverse direction to move the contact bar back and forth, the lower bracket is rotated clockwise with respect to the intermediate bracket by the elastic restoring force of the lower elastic body.

Accordingly, in proportion to the rotation amount of the second micrometer, the air head together with the lower bracket rotates at a certain angle, thereby adjusting the flatness of the lower surface on which the protective tape is adsorbed and fixed.

In addition, the flattening control unit 50 is provided in a symmetrical structure on both left and right sides of the rotating table 43 of the rotating unit, and each of the air heads 60 is mounted on a pair of substrates by a pair of air heads. The process of attaching the protective tape can be sequentially performed.

Between the rotating table and the flattening unit, a shock absorbing cylinder 59 is included so that the air head can absorb an impact force upon direct contact with the substrate, and the shock absorbing cylinder 59 is one of the rotating table. It includes an absorber body 59a fixedly installed on the side and connected to the air supply line, and a moving block 59b that is detachably connected to the upper bracket 51 of the flattening control unit and is movably assembled to the absorber body. can do.

On the other hand, in the vicinity of the main frame, a vertical frame 71 having a seating jig 72 at the upper end so that the protective tape T contacts the lower surface of the substrate S attached to cover and protect the electronic component. It may include a substrate support portion 70 to include.

Such a substrate support part 70 includes a tape adhesive plate 74 to which the adhesive surface of the defective protective tape is attached when the protective tape is judged to be defective, the tape adhesive plate and the upper end thereof are connected, and a pair of support rods having a spring member ( 75), and includes a pair of bush members 76 that are supported so as to move up and down reciprocating the pair of support rods, and a pair of bush members coupled with the pair of support rods is horizontal from one side of the vertical frame. It can be installed at the end of the extending connection bracket.

Accordingly, in the process of inspecting the adhesive surface condition or appearance condition of the protective tape by an optical camera that photographs the lower surface of the airhead in real time, if the protective tape adsorbed and fixed to the airhead is determined to be defective, the The defective protection tape is separated and removed by placing the defective protection tape directly above the tape bonding plate by the first and second transfer units, and then attaching the adhesive surface of the defective protection tape to the tape bonding plate by the lowering operation of the third moving unit. .

Further, in the vicinity of the vertical frame 71, a pair of vertical sensing bars 77 disposed directly under the air head so as to correspond to the air head 60 provided in a pair of left and right, and elastically supported upward by a spring member. Including, it may include a pair of head detection sensors 78 for generating a detection signal when the contact with each lower end of the pair of vertical detection bars.

Accordingly, when a pair of air heads descending directly under the third transfer unit simultaneously contact the upper ends of the pair of vertical sensing bars and simultaneously generate a sensing signal to the pair of head detection sensors, air provided in a left and right pair Since the lower surface of the head can be determined to be located on the same horizontal line, a process of temporarily adsorbing and fixing the protective tape on the lower surface of the pair of air heads and then attaching the protective tape to the substrate by air discharge is performed.

On the other hand, if a detection signal is generated in advance from one of the pair of head detection sensors, it is determined that the lower surface of the left and right airhead is not located on the same horizontal line and is temporarily adsorbed on the lower surface of the pair of airheads. Instead of performing the process of attaching the fixed protective tape to the substrate, the pair of air heads are corrected so that they are located in the same horizontal peak, and then the protective tape attaching process is performed.

The present invention described above is not limited to the above-described embodiments and the accompanying drawings, and various substitutions, modifications and changes are possible within the scope of the technical spirit of the present invention. It will be obvious to those who have the knowledge of.

10: first transfer unit
12: 1st motor 13: 1st runway 14: 1st reciprocating platform
20: second transfer unit
22: second motor 23: second runway 24: second reciprocating belt
30: 3rd transfer unit
32: 3rd motor 33: 3rd runway 34: 3rd reciprocating platform
40: rotating part
42: rotary motor 43: rotary table
50: flat control unit
51: upper bracket 52: middle bracket 53: first micrometer
54: lower bracket 55: second micrometer
60: air head
61: main block 62: protruding block 63: air discharge hole
64: vacuum suction hole
S: Substrate P: Electronic parts T: Protective tape

Claims (6)

In an apparatus for attaching a protective tape to cover and protect an electronic component mounted on a substrate,
Body frame;
A first reciprocating belt that is slidably assembled to a first run of the first motor fixed on the upper end of the main frame, and moves the first reciprocating belt in the y-axis direction by the driving force of the first motor. 1 transfer part;
Equipped with a second reciprocating belt that is slidably assembled to a second run of the second motor fixedly installed on the first reciprocating belt and moves the second reciprocating belt in the x-axis direction by the driving force of the second motor. Second transfer unit;
Equipped with a third reciprocating belt that is slidably assembled on a third runway of a third motor fixed to the second reciprocating belt, and moves the third reciprocating belt in the z-axis direction by the driving force of the third motor. Third transfer unit; And
A rotating unit having an air head coupled to a rotating stand of a rotating motor fixedly installed on the third reciprocating stand and rotating and moving the air head about a z-axis; Including,
The air head includes a plurality of vacuum suction holes connected in communication with the vacuum suction line, and includes a plurality of air discharge holes connected in communication with the air discharge line,
Air discharge output discharged through a plurality of air discharge holes when the vacuum suction force is released after placing a protective tape temporarily adsorbed on the lower surface of the air head by the vacuum suction force of the vacuum suction hole By pressing the protective tape falling from the lower surface of the air head to the substrate in a non-contact manner and attaching it,
The protective tape includes a flatness control unit for adjusting the flatness of the air head is temporarily adsorbed and fixed,
The flatness control unit includes an end of an upper bracket having an upper end fixed to the rotating table and an intermediate bracket whose one end is rotatably assembled through an upper hinge pin, and the intermediate bracket is fixedly installed to the upper bracket so as to be rotated. A first micrometer for vertically moving the lower contact end in contact with the upper surface of the other end of the bracket, and the upper pin and the head of the upper pin disposed in the through hole of the intermediate bracket by connecting and fixing the upper end to the lower surface of the upper bracket And at least one upper elastic body having a lower end in contact with the portion and engagingly connected, and having an upper end in contact with the intermediate bracket to elastically support the intermediate bracket toward the upper bracket,
One end of the middle bracket orthogonal to the upper hinge pin and the lower bracket that the other end is assembled to be rotatable through the lower hinge pin, and the lower bracket is fixed horizontally to the lower bracket so that the thickness becomes thinner toward the front end during rotation operation. A second micrometer that has a cross-sectional shape and moves a contact bar of a certain length disposed between the intermediate bracket and the lower bracket back and forth, and a lower end is connected and fixed to the upper surface of the lower bracket so that the other through-hole of the intermediate bracket Air, characterized in that it comprises a lower pin disposed and at least one lower elastic body having an upper end in contact with the head of the lower pin and engagingly connected, and a lower end in contact with the middle bracket to elastically support the lower bracket toward the middle bracket. Adsorption and air discharge type protective tape attachment device. In an apparatus for attaching a protective tape to cover and protect an electronic component mounted on a substrate,
Body frame;
A first reciprocating belt that is slidably assembled to a first run of the first motor fixed on the upper end of the main frame, and moves the first reciprocating belt in the y-axis direction by the driving force of the first motor. 1 transfer part;
Equipped with a second reciprocating belt that is slidably assembled to a second run of the second motor fixedly installed on the first reciprocating belt and moves the second reciprocating belt in the x-axis direction by the driving force of the second motor. Second transfer unit;
Equipped with a third reciprocating belt that is slidably assembled on a third runway of a third motor fixed to the second reciprocating belt, and moves the third reciprocating belt in the z-axis direction by the driving force of the third motor. The third transfer unit; And
A rotating unit having an air head coupled to a rotating stand of a rotating motor fixedly installed on the third reciprocating stand and rotating and moving the air head about a z-axis; Including,
The air head includes a plurality of vacuum suction holes connected in communication with the vacuum suction line, and includes a plurality of air discharge holes connected in communication with the air discharge line,
Air discharge output discharged through a plurality of air discharge holes when the vacuum suction force is released after placing a protective tape temporarily adsorbed on the lower surface of the air head by the vacuum suction force of the vacuum suction hole By pressing the protective tape falling from the lower surface of the air head to the substrate in a non-contact manner,
And a substrate support portion including a vertical frame having a seating jig at an upper end so as to contact a lower surface of the substrate in the vicinity of the main frame,
The substrate support portion includes a tape adhesive plate to which the adhesive surface of the defective protective tape is attached when determining the failure of the protective tape adsorbed and fixed to the air head, and a pair of support rods having a spring member and the upper end connected to the tape adhesive plate. Air adsorption and air discharge type protective tape attachment device, characterized in that it comprises a pair of bush members that are supported so as to move up and down reciprocating the pair of support rods. The method according to claim 1 or 2,
The air head has a plurality of first branch lines branching from a first main line connected in communication with the air discharge line, and a plurality of first branch lines branching from a second main line connected in communication with the vacuum suction line. A body block forming a second branch line inside the body, a plurality of air discharge holes corresponding to each discharge end of the plurality of first branch lines are exposed, and a plurality of air discharge holes corresponding to each discharge end of the plurality of second branch lines are exposed. An air adsorption and air discharge type protection tape attachment device comprising a protruding block protruding in the same shape as the protection tape on a lower surface of the body block to expose the vacuum adsorption hole. The method of claim 3,
The plurality of air discharge holes are formed through the central region of the protruding block, and the plurality of vacuum suction holes surround the outer edge of the central region through which the plurality of air discharge holes are formed. Air adsorption and air discharge type protective tape attachment device, characterized in that formed through the through. The method of claim 1,
And a substrate support portion including a vertical frame having a seating jig at an upper end so as to contact a lower surface of the substrate in the vicinity of the main frame,
In the vicinity of the vertical frame, a pair of vertical sensing bars disposed directly under the air head so as to correspond to the air heads provided in a pair of left and right, and elastically supported upward by a spring member, and each lower end of the pair of vertical sensing bars Air adsorption and air discharge type protective tape attachment device, characterized in that it comprises a pair of head detection sensors for generating a detection signal when the contact. delete

Images