KR200296289Y1 - Pusher device for semiconductor package manufacturing equipment - Google Patents

Abstract

The present invention relates to a pusher device 10 of a semiconductor package manufacturing equipment, wherein a wafer or printed circuit board is formed on various materials 32 for manufacturing a semiconductor package, for example, a lead frame, a printed circuit board, or a tacky tape. In order to transfer the materials 32 quickly and accurately while preventing the bonded frame or the like from being damaged, a plurality of semiconductor package materials 32 stored in the magazine 31 are sequentially placed on the upper portion of the transfer belt 27 or the like. In the pusher device 10 for on-loading one by one, the other end of the stationary motor 11 is fixed to the other end of the support portion 23 is fixed fixed to the bracket 16 and capable of reverse rotation; A roller 13 fixed to the rotating shaft 12 of the stationary motor 11; An LM guide 14 fixed to the other end of the support portion 23 corresponding to the roller 13; Pusher device of the semiconductor package manufacturing equipment, characterized in that made of a linear push bar 15 is installed between the roller 13 and the LM guide 14 to convert the rotational motion of the stationary motor 11 into a linear motion (10).

Description

Pusher device for semiconductor package manufacturing equipment

The present invention relates to a pusher device of a semiconductor package manufacturing equipment, and more specifically, to various materials for semiconductor packages in a magazine, such as a lead frame, a printed circuit board, or a tape (Tacky tape) A pusher device for semiconductor package manufacturing equipment capable of quickly and accurately onloading a frame or the like on which a wafer or a printed circuit board is adhered onto and preventing damage of the material during onloading.

In general, semiconductor package manufacturing equipment includes an on-loading unit for loading materials through a pick up or push operation in a magazine or tray in which a plurality of materials are stacked and stored, and a belt on the loaded materials. (B) a conveying unit for transferring to a predetermined position by a suction unit, a manufacturing unit for manufacturing the transferred material to a predetermined target object, a discharging unit for discharging the material manufactured by the target object using a belt or a suction unit, and a predetermined magazine. Or an unloading unit to sequentially receive the tray or the like again.

Here, the conventional general on-loading unit is a lifting motor including a lifting platform on which a magazine containing a material is seated, and a lifting shaft for sequentially raising or lowering the lifting platform, and being installed on one side of the lifting platform so that the material in the magazine can be removed from one side. It is composed of a pusher device and the like which pushes and supplies the feeder to the other side.

The pusher device is also of various types, usually having a long bar-shaped push bar directly installed in the hydraulic cylinder or pneumatic cylinder, or the push bar is coupled to one side of the straight rail, the other side is coupled to the cylinder It is comprised so that it can move along the rail.

Such a pusher device is to load the material in the magazine to the transfer unit by moving the push bar coupled to the rail in one direction when a predetermined electrical signal is applied to the pneumatic cylinder according to the control signal of the controller.

However, such a conventional pusher device does not have a safety device such as stopping the operation of the onloader by automatically detecting it when the material in the magazine is jammed or not pushed by the push bar due to some other reason. There is a problem that the material in the magazine is deformed or broken, and when the push bar is forced to push the material continuously there is a problem that the push bar is deformed or the entire pusher device is broken.

The present invention has been made to solve the above-mentioned conventional problems, and is installed on the on-loading unit for various semiconductor package materials in the magazine, for example, a wafer or a printed circuit on a lead frame, a printed circuit board or a tape tape. It is to provide a pusher device of a semiconductor package manufacturing equipment capable of quickly and accurately on-loading a frame and the like to which a substrate is bonded and preventing damage of the material during on-loading.

1a to 1c is a front view, a plan view and a side view showing an on-loading portion of the semiconductor package manufacturing equipment to which the present invention is applied.

2A-2C are enlarged views of FIGS. 1A-1C.

Figure 3 is a block diagram showing the electrical configuration of the on-loading portion of the semiconductor package manufacturing equipment.

-Explanation of symbols for the main parts of the drawings-

OL; On-loading section 10; Pusher device

11; Forward and reverse motor 12; Axis of rotation

13; Roller 14; LM Guide

14a; Groove 15; Push bar

15a, 15b; Projection 16; Brackets

18; Advance detection sensor 19; Return detection sensor

20; Support wall 21; Connection Bracket

22a, 22b, 22c; Magazine lead walls a, b, c 23; Support

24; Wallpaper boards 25; Transfer wall

26; Feed rollers 27; Conveying belt

28; Feed base 29; Platform

30; Lifting shaft 31; magazine

32; Material 40; controller

41; Lifting motor

In order to achieve the above object, the pusher device of the semiconductor package manufacturing apparatus according to the present invention is a pusher device for sequentially loading a plurality of semiconductor package materials stored in a magazine one by one on top of a transport belt, one end of which is fixed. A forward and a reverse motor which is fixed to the other end of the support and fixed to the reverse rotation; A roller fixed to the rotating shaft of the stationary motor; An LM guide fixed to the other end of the support portion corresponding to the roller; It is installed between the roller and the LM guide is characterized in that consisting of a straight push bar for converting the rotational motion of the stationary motor to linear motion.

Here, the push bar is further provided with protrusions at both ends of the push bar so that the push bar no longer proceeds to one side, and the support part has a forward detecting sensor and a return detecting sensor to detect the forward and return states of the push bar at the other end thereof. Is further installed, the roller is characterized in that formed of a rubber material.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings such that those skilled in the art may easily implement the present invention.

First, Figures 1a to 1c is a front view, a plan view and a side view showing the on-loading portion (OL) of the semiconductor package manufacturing equipment to which the pusher device 10 according to the present invention is applied.

As shown, the on-loading part OL is centered on the support wall 20, and on one side, a platform 29 on which a magazine 31 in which a plurality of materials 32 (frames) are stored is located. The lifting platform 29 is connected to a plurality of lifting shaft 30 and the lifting motor 41 (not shown), it is possible to move up and down. A transport base 28 and a transport wall 25 are fixed to the lower side of the other side 23a of the support wall 20, and a plurality of transport rollers 26 are rotatably fixed to the upper part of the transport wall 25. The transfer roller 26 is coupled to the transfer belt 27 to rotate in one direction. The material 32 from the magazine 31 is loaded on top of the conveying belt 27 and conveyed to the next process. The magazine lead wall a (22a) is fixed to the upper portion of the support wall 20 by the connecting bracket 21, and the support 23 is located at the end of the magazine lead wall a (22a) according to the present invention The pusher device 10 is coupled.

Here, as shown in FIG. 1B, the magazine lead wall b 22b and the magazine lead wall c 22c are further formed at both ends of the support wall 20, and the material 32 in the magazine 31 is formed. Is an example of a frame.

On the other hand, the pusher device 10 according to the present invention is provided on the support 23, as described above, the structure of this will be described in detail with reference to Figures 2a to 2c as follows.

First, the bracket 16 is fixed to the upper end of the other end 23a of the support 23 fixed to the magazine lead wall a 22a, and the forward and reverse motor 11 capable of forward and reverse rotation on the upper portion of the bracket 16. Is fixed. A roller 13 is fixed to the rotating shaft 12 protruding from the bottom of the stationary motor 11, and at the other end of the support part 23 corresponding to the roller 13, the groove 14a is directed toward the roller 13. The LM guide 14 in which () is formed is fixed. Between the grooves 14a of the LM guide 14 and the roller 13, a straight push bar 15 for converting the rotational motion of the stationary motor 11 into linear motion is interposed.

Here, at both ends of the push bar 15, protrusions 15a and 15b are formed, respectively, so that the push bar 15 no longer proceeds to one side by the rotational motion of the stationary motor 11, and the support portion The other end of the 23 is provided with a forward detecting sensor 18 and a return detecting sensor 19 so as to detect the forward and return state of the push bar 15. The forward detecting sensor 18 and the return detecting sensor 19 may use a pair of optical sensors, an ultrasonic sensor, a laser sensor, and the like including the transmitters 18a and 19a and the receivers 18b and 19b. The projections 15a and 15b of the push bar 15 are positioned between 18a and 19a and the receivers 18b and 19b to sense the forward or return state.

On the other hand, the roller 13 is formed of a rubber material so that the push bar 15 is the roller 13 when the frame in the magazine 31 is jammed or not loaded into the conveying part by some other cause Is idling on the push bar 15 to prevent deformation and damage of the material 32 and the push bar 15.

Finally, Figure 3 is a block diagram showing the electrical configuration of the on-loading unit (OL) of the semiconductor package manufacturing equipment, the main configuration detects whether the push bar 15 is advanced or returned and converts it into a constant electrical signal and outputs A controller 40 for receiving a signal from the forward detecting sensor 18 and the return detecting sensor 19, and performing the various calculation, storage and control processes by receiving signals from the forward detecting sensor 18 and the return detecting sensor 19; In order to advance or return the push bar 15 to one side by the control signal of the controller 40, the forward / reverse motor 11 and the lifting platform 29 for forward or reverse rotation of the roller 13 are separated by a predetermined interval. Consists of a lifting motor 41 for rotating the lifting shaft 30 to raise and lower in sequence.

Referring to the effect of the pusher device 10 according to the present invention having such a mechanical and electrical configuration as follows.

The magazine 31 in which the plurality of semiconductor package materials 32 are stored is placed on the lifting table 29, and when power is applied, the controller 40 outputs a predetermined electrical signal to the lifting motor 41, thereby providing the lifting table ( 29) is raised by a certain pitch.

Subsequently, the controller 40 outputs a constant electrical signal to the stationary motor 11 so that the stationary motor 11 rotates in a constant direction.

Then, the roller 13 coupled to the rotating shaft 12 of the stationary motor 11 also rotates in the same direction, and the push bar 15 positioned between the roller 13 and the recess 14a of the LM guide 14. ) Rotates linearly in one direction by the rotation of the roller 13, and continues to push the material 32 in the magazine (31).

Then, the material 32 is loaded on the upper portion of the conveying belt 27 which is rotated in one direction by the conveying roller 26.

As such, when the material 32 is loaded on the upper portion of the conveyance belt 27, one end of the push bar 15, for example, the protrusions 15a and 15b on the left side of the push bar 15 of FIG. It is located between the transmitter 18a and the receiver 18b of the sensor 18.

Then, the forward detecting sensor 18 outputs a constant electrical signal to the controller 40 to indicate that the push bar 15 is fully advanced.

As described above, when the push bar 15 is fully advanced, the controller 40 reversely rotates the roller 13 by outputting a constant electric signal so that the forward and reverse motor 11 reverses.

Therefore, the push bar 15 interposed between the groove 14a of the LM guide 14 and the roller 13 moves in the reverse direction.

In this way, when the push bar 15 moves to the end in the reverse direction, the protrusions 15a and 15b on the right side of the push bar 15 of FIG. 2a are transmitted by the transmitter 19a and the receiver 19b of the return detection sensor 19. Is located between).

Then, the return detection sensor 19 again outputs a constant electrical signal to the controller 40 to inform that the push bar 15 has been fully restored.

In this state, the controller 40 outputs a constant electrical signal to the elevating motor 41 such that the elevating shaft 30 is rotated so that the elevating platform 29 is increased by a predetermined pitch, and the above operation is repeated.

Here, when the material 32 in the magazine 31 is jammed or is not easily loaded onto the conveying belt 27 in the magazine 31 by some other defect, the stationary motor 11 of the The push bar 15, which is rubbing forward with the roller 13, no longer moves forward. That is, when the force of the material 32 jammed in the magazine 31 is greater than the friction force between the roller 13 and the push bar 15, the roller 13 is push bar 15. By idling at the end, the push bar 15 is no longer advanced. This action prevents the push bar 15 from deforming or breaking the material 32 and also the deformation of the push bar 15 by not transmitting excessive force to the material 32 in the magazine 31. It will be possible.

At this time, the controller 40 determines whether a predetermined signal is received from the forward detecting sensor 18 within a predetermined time. Even if a predetermined time elapses due to the above phenomenon, a signal indicating that the push bar 15 is fully advanced is received. If not received, the user is prompted to check the state of the on-loading unit OL by operating an alarm means or the like not shown.

As described above, although the present invention has been described with reference to the above embodiments, various modifications may be made without departing from the scope and spirit of the present invention.

Therefore, according to the pusher device 10 of the semiconductor package manufacturing equipment according to the present invention, it is provided in the on-loading unit (OL) and the various semiconductor package materials 32 in the magazine 31, for example, lead frame, printed circuit It is possible to quickly and accurately on-load a frame or the like on which a wafer or a printed circuit board is adhered to a substrate or a tacky tape, and to prevent damage of the material 32 or the like during on-loading.

Claims (4)

In the pusher device 10 for sequentially loading a plurality of semiconductor package material 32 stored in the magazine 31 one by one on top of the transfer belt 27, etc., A forward and reverse motor 11 fixed to the other end 23a of the support 23 to which one end is fixed and capable of forward and reverse rotation; A roller 13 fixed to the rotating shaft 12 of the stationary motor 11; An LM guide 14 fixed to the other end 23a of the support portion 23 corresponding to the roller 13; Pusher device of the semiconductor package manufacturing equipment, characterized in that made of a linear push bar 15 is installed between the roller 13 and the LM guide 14 to convert the rotational motion of the stationary motor 11 into a linear motion . The pusher device according to claim 1, wherein the push bar (15) is further provided with protrusions (15a, 15b) at both ends of the push bar (15) so that the push bar (15) no longer proceeds to one side. . According to claim 1, The support portion 23 is characterized in that the forward detection sensor 18 and the return detection sensor 19 is further installed to detect the forward and return state of the push bar 15 at the other end (23a). Pusher device for semiconductor package manufacturing equipment. The pusher device according to claim 1, wherein the roller (13) is made of a rubber material.