JPS5994498A - Chip tray supplying and recovering device - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Technical Field of the Invention] The present invention relates to a chip tray supply and recovery device used for chip mounting air aK in the manufacture of electronic solid-state devices, semiconductors, and the like.

[Technical background of the invention]

In general, in the manufacture of electronic solid-state devices, semiconductors, etc., chips (pellets) are mounted on stems or lead frames in the following manner. In other words, normal 2
For chips that are smaller than the u angle, the chips are directly picked up and mounted from the wafer on which the chips are attached to the sheet. However, for relatively large chips that exceed the 2 angle After stripping the sheets and rearranging them in a chip tray (a container with partitions according to the size of the chips), the chips are picked up from the chip tray and mounted.

[Problems with background technology]

When mounting using such a chip tray,
Due to space constraints, only one or two chip trays can be provided on the chip supply table. For this reason, once the number of chips stored in the chip tray has been mounted, the mounting device is temporarily stopped.
The chip tray on the table must be replaced manually. Therefore, it is impossible to operate the device unmanned for a long period of time, which poses problems in terms of automation and labor saving.

[Purpose of the invention]

The purpose of the present invention is to supply and collect chip trays to and from a table, and to enable unattended operation of the entire device.
It is an object of the present invention to provide a chip tray supply and collection device with improved operation rate.

[Summary of the invention]

The chip tray supply and collection device according to the present invention has a magazine that stores a plurality of chip trays in a stack and holds these chip trays so that they can be taken in and out along a predetermined X direction, and has an entrance and exit port in the X direction of this magazine. A chip tray +i and a rice 2 saucer are arranged on both sides so as to face each other, and these saucers are configured to be able to reciprocate along the Y direction perpendicular to the above-mentioned X direction. At a transfer position moved a certain distance in the Y direction 11CG from a position facing the magazine entrance/exit, a table for supplying chips is provided so as to be located between the trays for the rice 1 and the tusk 2, and a table for supplying chips is provided along the X direction. A transfer mechanism is constituted by a feed lever for rice 1 that is driven to feed the chip tray from the tray of the fang 1 onto the table, and a feed lever for the fang 2 that feeds the chip tray from the tray of the fang 2 into the magazine. Then, after positioning the lower surface of the chip tray stored in the magazine using the two-direction feeding mechanism slightly higher than the upper surface of the receiving tray for the spear 1 and fang 2, the feed lever for the fang 2 is moved in the X direction. It is operated by a mechanism to send out the empty chip tray on the receiving tray of the fang 2 under the magazine internal pressure, collect it into the magazine, and send out the chip tray in the magazine from this empty chip tray onto the +1 receiving tray, and then send out the empty chip tray on the receiving tray of +1. Then, the rice tray 2 is moved to the transfer position using the Y-direction feeding mechanism, and at this transfer position, the feed lever for rice 1 is operated by the X-direction drive device, and the chip tray on the saucer of the fang 1 is placed on the table. At the same time, the empty chip tray that was on the table is pushed out and transferred onto the tray of fang 2 by this chip tray, and then the tray of raw material 1 and fang 2 is transferred to Y.
It is configured so that it is moved to a position facing the magazine by a directional feed mechanism, and the above-described collection operation is repeated.

[Embodiments of the invention]

Hereinafter, the present invention will be explained in detail with reference to an embodiment shown in the drawings.

In Figure 1, (11) is a rectangular base, with columnar brackets (12) erected at each of its four corners, and between each bracket 021 along the three sides of the base (11). are each provided with a guide rail α (I. Here, the direction along the guide rail (14) is defined as the X direction, and the guide rail (131K?) perpendicular to this is defined as the X direction.
The Y direction is the 8th direction.

αη is a magazine that stores a plurality of chip trays QS in a stack and holds each of these chip trays a81 so that they can be taken in and out along the X direction. The magazine aη is supported on a magazine holder integrated with the upper end of a rond tin penetrating through the base (11) so as to be located approximately at the center of the base (111).

(221 is a saucer for rice 1, ρ3 is a saucer for rice 2, and these saucers are arranged on both sides of K so as to face the entrance/exit in the X direction of the magazine (l?). It is integrally connected to a slider supported by a rail link so as to be able to reciprocate along the X-direction Vc.

Further, a trace stopper (c) is provided near the end K on the opposite side of the magazine on each of these receiving trays r2z.

(5) is a table for supplying chips to a mounting device (not shown), and when the trays of the 5F1 and spear 2 move a certain distance in the Y direction and reach a predetermined transfer position, as shown in FIG. , is provided so as to be located between these two saucers (221).The position of this table (material) is as follows.
As described later, the chip tray is the origin position for supplying and collecting chips, and when supplying chips to the mounting device,
A moving mechanism (not shown) moves the bonding part to a different position.

The device is a transfer mechanism that includes a slider (to) supported by the guide rail (141) so as to be able to reciprocate along the It consists of a feed lever 61) (to).

When the transfer mechanism 4 is at one end of the movement in the X direction, that is, on the left side in the figure, the feed lever Cl1l of the spear 1 is moved to the receiving tray (22) of the rice 1 which has been moved to the transfer position, as shown in the figure 3. It is arranged so as to face the end side of the chip tray Q8) located on the side opposite to the table, that is, the left end side in the drawing. Also,
When the transfer mechanism 4 is at the other moving end in the X direction, that is, on the right side in the figure, the feed lever Gz of the spear 2 has moved to a position opposite to the entrance and exit of the magazine a7), as shown in Figure 5. It is arranged so as to face the end of the chip tray on the side opposite to the magazine, that is, the right end in the figure, of the chip tray frame located above the receiving tray of the fangs 2.

(Incorporated) uses a two-way feeding mechanism to move the magazine αη so that the bottom surface of each chip tray (IgI stored therein) is positioned slightly higher than the top surface of the +i and second tray (2Za). It is displaced by a pitch in two directions, that is, in the vertical direction in the figure that is perpendicular to the plane formed by the X direction and the Y direction.This two-direction feeding mechanism
has an inverted T-shaped support member 35) integrally connected to the lower surface of the base (11). A lead screw (to) along the two directions is rotatably provided between the bottom surface of one of the support members (g) and the bottom surface of the base (111). A driving motor Sη is installed on the bottom part, and rotates the lead screw through the belt side. (To) is a moving body that has a female screw hole that screws with the lead screw (support). have

Further, this moving body Cl1l is connected to the lower end of a rod (19) integrated with the magazine receiver 2, and is connected to the lower end of the rod 19 that is integrated with the magazine receiver
), the magazine αη placed on the magazine receiving ring is displaced one pitch at a time as described above.

Gυ is a Y-direction feeding mechanism that moves the rice 1 and spear 2 saucers Qz to both the position facing the magazine α and the transfer position facing the table (5) through the slider 1241. It is made to reciprocate in the Y direction in order to This Y-direction feeding mechanism (41) includes a lever (43) connected to the slider section via a joint rod (421).
Has 1. The proximal end of this lever 13 is connected to a base (11).
It is rotatably supported on the side, and is provided with a long hole Gi4 along its length. (451 is a force A, which has a pin ■ that engages with the elongated hole ■ above near its outer periphery, and a motor cover η provided on the base aυ and a bevel gear mechanism (
It is integrally attached to both ends of the shaft (49) connected through the machine.Then, it is rotationally driven by the motor 0nK through the shaft decoy, and is driven through the bottle tap and the elongated hole (44) that engages with it. Rotate the lever (42), and then move the slider (2) via the joint rond (42) to Y.
move in the direction.

Reference numeral 6υ is an X-direction feeding mechanism that moves the transfer mechanism (c) forward and backward in the X direction via the slider (to).

This X-direction feeding mechanism 151) has a joint rond (5
It has a lever that connects to the slider (to) through 2.

The base end of this lever (53) is rotatably supported on the base αυ side, and the intermediate part in the longitudinal direction is connected to a link 64.
via force A65). This cam 69 is rotationally driven by a motor 661 provided on the base αυ, and the lever (53) is rotated by the link connected via a pin 67 near its outer periphery. The slider (to) is driven in the X direction via the joint rod 6z as the lever (530) rotates.

In the above configuration, it is assumed that the table (2) has returned to the original position shown in the figure from the bonding portion described above. At this time, there is an empty chip tray a8 on the table (5).
is located. Further, as shown in Fig. 2 of the fang 2, a new chip tray α ladder is placed on the saucer n of the fang 1, with chips loaded from the magazine fin due to the previous chip tray collection operation to be described later. Next, the Y-direction feeding mechanism (4υ) is operated to move the saucer horns of the fangs 1 and 2 a certain distance in the Y-direction, and position them at the transfer position facing the button and the end of the table, as shown in FIG. In this state, the X-direction feed mechanism 6υ is operated, and the transfer mechanism ■ is moved to the right in the figure along the X direction.By this operation, the feed lever Clυ of the spear 1 is moved
It engages with the left end side of the chip tray (18 in the drawing) on the saucer (c) of the fang 1 and sends it out to the right in the drawing.
I'm busy moving around. At this time, the empty chip tray (La) that was on the table picks up the rice 2 until its left end side in the diagram forms a gap with the right end side in the diagram of the chip tray α8 stored in the magazine αη. Push it out onto a saucer. After that, the transfer mechanism
) to form a gap (a gap).

As a result of the above operation, a new chip tray α second with a large number of chips mounted on the table □□□ is supplied.
Table C! The force is transferred again to the bonding section at another position by a moving mechanism (not shown), and supplies the chip to the mounting device.

Next, operate the Y direction feeding mechanism again, and
The saucer C3 is moved along the Y direction in the opposite direction from the previous time, and is placed in a position facing the magazine aη, as shown in Figure 5. At this time, the magazine a7) is moved by the two-direction feeding mechanism (
34), and the rice 1 and 2 are fed by 1 pitch.
A new chip tray a mallet with chips attached thereto faces the receiving tray C121231. In this state, the X direction feed mechanism (51) is operated again, and the transfer mechanism c! 9 is moved along the X direction in the opposite direction from the previous time.

Therefore, the second feed lever c12 engages with the right end side in the drawing of the empty chip tray tte located above the second receiving tray, and feeds it to the left in the drawing. This action causes fang 2
The empty chip tray aυ on the saucer □□□ of the magazine (
17) will be collected within. At this time, as mentioned above, the left end surface of the new chip tray Q1, which is located opposite to the inside of the magazine fin, is on the chip tray located on the table □□□, as shown in Fig. 2. Push it out onto the saucer n of the fang 1 until it forms a gap (6) with the left end face of αQ in the figure.

Incidentally, at this time, the table holder is actually not located at the position of the fang 2, but is located at the bonding portion as described above. After that, the transfer mechanism is returned to the dimension (φ), and an interval (c4 is formed between the right end side of the chip tray in the magazine αn and the feed lever C2 of the tooth 2 as shown in the figure). When the table C!η returns to the original position shown in FIG. 2 along with the empty chip tray a mallet, the above-described feeding operation is repeated again.

By repeating the supply and collection operations in this manner, multiple chip trays Q stored in the magazine 0η are
8) are sequentially supplied onto the table (3), and the used and empty chip trays aQ are sequentially collected into the empty magazine αn of the table (supply). Therefore, there is no need to prepare a separate space for collecting empty chip trays, and the entire device can be made smaller.

Also, since the used chip tray a mallet is collected in the magazine αn, the used chip tray a8
It is also possible to collect chips remaining inside.

In addition, each interval (φ(
The magnitude relationship of /l■■ may be set so that β>α)R>8.

〔Effect of the invention〕

As described above, according to the present invention, a plurality of chip trays stored in a magazine are sequentially supplied onto a table, and used chip trays are collected from the table in order from inside the magazine. Since the used chip tray on the table is replaced as shown in the figure, there is no need to stop the chip mounting device each time, and unattended operation for a long period of time is possible, resulting in significant labor savings and improved operating rates.

[Brief explanation of the drawing]

Figure 1 is a perspective view showing one embodiment of the chip tray supply and recovery device according to the present invention, and Figures 2, 3 and 4, and 5 illustrate the operation of the chip tray supply and recovery device shown in Figure 2. FIG. 2 is a simplified plan view for explaining. (Lη・Medium magazine, aa-・chip tray, CZ--
First saucer, mu @ second saucer, hard... table, C2
9)...Transfer mechanism, c+11@-+i feed lever, (
32...Fang 2 feed lever, (2)...2-direction feed mechanism, (411...-Y direction feed mechanism, 5υ...χ direction feed mechanism.

Claims (1)

[Claims] +ti Store multiple chip trays in a stack and place these chip trays in a predetermined X direction? E? a magazine which is held in such a way that it can be taken in and out; and a first and a second magazine which are arranged on both sides of the magazine so as to face the opening in the X direction and are configured to be able to reciprocate in the Y direction KG perpendicular to the X direction. A table located between the rice 1 and spear 2 saucers at a transfer position moved a certain distance along the Y direction from the position facing the magazine entrance/exit of the +1 and second saucers, and the The chip tray was provided so as to be able to reciprocate in the X direction, and one end of the movement in the X direction was arranged so as to face the edge of the chip tray on the opposite table side located on the +1 saucer at the transfer position. The feed lever of the tooth l and the second moving end in the X direction are arranged so as to face the opposite end of the chip tray located on the tray of the spear 2 which is located at a position facing the magazine. a transfer mechanism consisting of a feed lever; and a two-way feed mechanism that displaces the magazine one pitch at a time so that the bottom surface of each chip tray stored therein is positioned slightly higher than the top surface of the fang 1 and fang 2 receiving trays. a mechanism, a Y-direction feeding mechanism that reciprocates to position the receiving trays of the spear 1 and fangs 2 both at a position facing the magazine and at the transfer position; and a Y-direction feeding mechanism that moves the transfer mechanism from the one moving end. A chip tray supply and recovery device comprising: an X-direction feeding mechanism that reciprocates between the two moving ends.