KR100406446B1 - Lead frame inspection jig - Google Patents

Abstract

The present invention relates to a jig for inspecting a lead frame, and when the lead frame is taken out from a magazine containing a plurality of lead frames, the long side and the short side (long side and short side) can be safely moved on the jig while the lead frame remains horizontal. A body having a seating surface having a predetermined width so that the lead frame may be seated along an edge of one surface on a rectangular plate having a iii); At least one rail installed in the same direction as the long side inside the body; A transfer part coupled to the rail to transfer the lead frame received in the magazine onto a seating surface of the body; Lead jig for inspection of the lead frame consisting of a fixing portion coupled to the side of the body to fix the body to the magazine.

Description

Lead frame inspection jig

The present invention relates to a jig for inspecting leadframes, and more specifically, to a leadframe in which a leadframe can be safely moved on a jig while the leadframe is taken out of a magazine containing a plurality of leadframes in a horizontal state. It is about an inspection jig.

In general, a lead frame or a printed circuit board (hereinafter, referred to as a lead frame) is a semiconductor chip mounted thereon, and an electrical connection between the semiconductor chip and the lead frame after the electrical connection process (commonly referred to as a wire bonding process) is completed. This is done correctly in the inspection process. In most semiconductor package manufacturing processes, however, the lead frames after the electrical connection process is completed are usually stacked and transported in a magazine spaced apart from each other by a predetermined distance.

A jig for removing and inspecting the magazine and the leadframe from the magazine is shown in FIG.

The magazine 60 has a hollow hexahedral shape as shown, and the corresponding two directions penetrate to form a predetermined body 63. In addition, a plurality of receiving grooves 62 are formed in a straight line in the body 63 to support and fix the lead frame 70.

On the other hand, the jig 100 'is formed in a substantially rectangular plate shape, and the lead frame from the magazine is inspected while being placed on the jig 100' directly by tweezers P or by hand.

However, in recent years, the lead frame is becoming thinner and the number of leads formed in the lead frame becomes fine pitch, so even if the lead frame is bent slightly during transportation, short circuit of the electrical connection and short of the lead are caused. There is a high possibility of occurrence. That is, as shown in the figure, when the lead frame is taken out from the magazine by using tweezers or hands, the portion of the lead frame is bent by the load of the lead frame and is transferred to the jig. Short circuit, lead short, etc. will occur. In addition, when the lead frame is moved directly by hand, the lead frame is easily contaminated, and the lead frame may be damaged due to an operator's mistake.

Therefore, the present invention has been invented to solve the conventional problems as described above, when the lead frame is taken out from a magazine containing a plurality of lead frames lead that can be safely moved on the jig while the lead frame is kept in a horizontal state It is to provide a jig for frame inspection.

1 is a state diagram showing a conventional lead frame inspection method.

2A to 2C are a plan view, a front view and a side view showing a first embodiment of a lead frame inspection jig according to the present invention.

3 is a plan view showing a state of use of the lead frame inspection jig according to the present invention shown in Figures 2a to 2c.

4A to 4B are a plan view and a front view showing a second embodiment of a lead frame inspection jig according to the present invention.

Figure 5 is a plan view showing another method for fixing the transfer unit in the lead frame inspection jig according to the present invention.

-Description of the main symbols in the drawings-

100,200; Lead frame inspection jig according to the present invention

10; Body 10a; Long side

10b; Short side 11; Seating surface

12; Space 13; Through

14a, 14b; Support jaw 15; Groove of support jaw

16; A recessed surface 17 for receiving; Groove on the seating surface

18; Projection 19; ball

20; Rail 30; Conveying part

31; Clamp 32; Spring of clamp

33; Handle 34; Transfer block

35; Grooves 37a, 37b of the clamp; Magnetic material

40; Fixing part 41; lever

42; Protrusion 43; Spring of fixing part

50; Fixing plate 60; magazine

61; Magazine groove 62; Magazine storage groove

Lead frame inspection jig according to the present invention in order to achieve the above object is a rectangular plate having a long side (short side) and a short side (side) to be seated of a predetermined width so that the lead frame is seated along the edge of one surface A body having a face; At least one rail installed in the same direction as the long side inside the body; A transfer part coupled to the rail to transfer the lead frame received in the magazine onto a seating surface of the body; Is coupled to the side of the body characterized in that it comprises a fixing portion for fixing the body to the magazine.

Preferably, the body further includes a space portion having a predetermined depth inside the seating surface, and a rail having a substantially rod shape in the space portion is formed at a lower position than the seating surface.

The support jaw is formed around the seating surface in the long side direction to be thicker than the seating surface in order to prevent the lead frame from being separated, and one of the support jaws has a groove parallel to the long side direction so that the lead frame does not deviate upward. By forming the lead frame is preferably coupled to the groove. One of the supporting jaw may further be provided with a recessed surface that is the same plane as the mounting surface so that the lead frame can be easily mounted on the mounting surface by hand.

The transfer unit attaches a clamp to transfer the fixed end of the lead frame. The transfer unit forms a handle at a position higher than the clamp on both sides of the clamp, and a transfer block coupled to the rail at the bottom of the clamp and the handle. The bottom surface of the clamp is formed with a groove of a predetermined depth toward the top, the seating surface is coupled with the groove of the clamp to form another groove of a certain depth to fix the transfer portion on the body, the groove of the body The ball is preferably fixed to be coupled to and separated from the groove of the bottom of the clamp. Here, a magnetic body may be installed at one end of the clamp, and another magnetic body may be installed at a body corresponding to the clamp to allow the transfer unit to be coupled to and detached from the body.

A lever is mounted on the body fixing part, and the protrusion is protruded to be in close contact with the side surface of the magazine by protruding a predetermined length toward the magazine in conjunction with the lever.

At least one protrusion may be formed at one end of the body such that the lead frame of the magazine is coupled to the receiving groove.

One end of the body may form a groove between each receiving groove of the magazine and may be coupled to the groove to couple the fixing plate so that the body is fixed.

According to the lead frame inspection jig according to the present invention as described above, when the lead frame is taken out from a magazine containing a plurality of lead frames, the lead frame can be safely moved on the jig while being kept horizontal, The electrical connection between the lead frames can be maintained satisfactorily, and the short phenomenon of the fine pitched leads can be prevented.

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 can easily implement the present invention.

2A to 2C are a plan view, a front view, and a side view showing a first embodiment of a lead frame inspection jig 100 according to the present invention.

As shown in the drawing, the seating surface 11 has a predetermined width so that the lead frame 70 may be seated along an edge of one surface on a substantially rectangular plate having a long side 10a and a short side 10b. The body 10 is formed. Thus, the seating surface 11 of the body 10 has a substantially rectangular line shape. The body 10 may be manufactured using metal or plastic, and is preferably made of a metal material in order to prevent static accumulation of the lead frame 70.

The body 10 is formed with a space portion 12 of a predetermined depth in the entire inner side of the seating surface 11, the space portion 12 is approximately a rod in parallel with the long side 10a of the body 10 The rail 20 of the (i) form is formed. The rail 20 is formed at a position lower than the seating surface 11 so as not to interfere with the lead frame 70 positioned at the seating surface 11. In addition, the number of the rails 20 is preferably formed at least one or two or more.

Here, a plurality of holes 13 having a predetermined size are formed below the space 12, which is merely an arbitrary option of those skilled in the art.

Outside the seating surface 11 formed on the long side 10a of the body 10, two support jaws 14a and 14b thicker or higher than the seating surface 11 to prevent detachment of the lead frame 70. ) Is formed. One of the support jaws 14a and 14b (preferably, the support jaw 14a formed in the upper direction in the drawing) does not allow the lead frame 70 to be separated from the top of the jig 100. The groove 15 is formed long in the same direction. Therefore, the entirety of one side of the lead frame 70 is located between the grooves 15 of the support jaw 14a, so that the lead frame is separated from the jig 100 even if the operator rotates the jig 100 by a predetermined angle. Will not be.

Here, the support jaw 14a in which the groove 15 is formed is preferably smaller than the length of the seating surface 11 on the long side 10a. That is, as shown in the figure, the supporting jaw 14a is not formed at the portion in contact with the magazine 60. This has the advantage that the jig 100 can be easily coupled to other equipment.

In addition, any one of the support jaw 14a, 14b (preferably the support jaw 14b in the lower direction in the figure) can be easily mounted on the seating surface 11 by hand. The recessed surface 16 which is coplanar with the said mounting surface 11 is further formed so that it may be. The recessed surface 16 may be lower than the seating surface 11, but is not limited thereto.

Subsequently, the transfer part 30 is provided to transfer the lead frame 70 accommodated in the magazine 60 on the seating surface 11 of the body 10 to be coupled to the rail 20.

The transfer unit 30 is provided with a clamp 31 to be transported while fixing the end of the lead frame 70. The clamp 31 is in a state in which the end is in close contact with the elastic force of the spring 32, pressing the other end is in a state capable of clamping the lead frame 70 is spaced a predetermined distance apart.

In addition, the transfer part 30 is formed on both sides of the clamp 31, the handle 33 of the position higher than the clamp 31. The reason why the position of the handle 33 is formed higher than the clamp 31 is to prevent the operator from operating the transfer part 30 while pressing the clamp 31. If the transfer unit 30 is operated while the clamp 31 is pressed, the lead frame 70 in the magazine 60 cannot be taken out.

In addition, the lower surface of the clamp 31 and the handle 33 is coupled to the rail 20 is coupled to the transfer block 34 to transfer the transfer portion 30 in the longitudinal direction of the body (10). Here, the transfer block 34 is coupled to the rod-shaped rail 20, but is not limited thereto.

In addition, the bottom of the clamp 31 is formed with a groove 35 of a predetermined depth toward the top. Similarly, grooves 17 having a predetermined depth are also formed on the seating surface 11 (the seating surface 11 formed on the short side 10b) at a position corresponding to the recess 35 of the clamp 31. The ball 19 is fixed to the groove 17 of the surface 11. Therefore, the grooves 35 of the bottom surface of the clamp 31 and the balls 19 fixed to the grooves 17 of the seating surface 11 are coupled to and separated from each other, so that the transfer part 30 is seated on the body 10. It becomes possible to fix and detach to (11).

On the other hand, as shown in Figure 5 means for fixing the transfer portion 30 to the seating surface 11 or one side of the body 10 may use a magnetic material (37a, 37b). That is, a magnetic body 37a is installed at one end of the clamp 31, and another magnetic body 37b is also installed at the body 10 at a position corresponding to the clamp 31 so that the transfer unit 30 may have a body 10. Can be combined and separated). At this time, one of the magnetic body (37a, 37b) is preferably made of a rubber magnetic material to mitigate the impact of the transfer unit 30, and this does not limit the fixing method of the transfer unit (30).

Subsequently, a fixing portion 40 is formed on one side (lower direction in the figure) of the body 10 to fix the body 10 to the magazine 60.

The fixing part 40 is provided with a lever 41 rotatably at an angle to the outside, and is provided with a protrusion 42 to protrude a predetermined length toward the magazine 60 when interlocked with the lever 41. . That is, normally, the protrusion 42 is positioned inside the fixing part 40 by the elastic force of the spring 43, and when the lever 41 is rotated at an angle, the protrusion 42 is fixed to the fixing part 40. ) Protrudes outward to be in close contact with the magazine 60. Here, as the lever 41 rotates the lever 41 by forming a cam 44 having an elliptical or similar shape in a portion of the lever 41 in contact with the protrusion 42, the protrusion 42 moves in a predetermined direction ( Preferably in the direction in which the magazine is located.

In addition, at least one protrusion 18 is formed at one end (left side in the drawing) of the body 10 so as to be coupled to the receiving groove 62 in which the lead frame 70 of the magazine 60 is accommodated. The protrusion 18 is coupled to the magazine 60, and in this state, the protrusion 42 of the fixing part 40 comes into close contact with the magazine 60 so that the jig 100 is horizontal to the magazine 60. It can be combined.

4A to 4B are a plan view and a front view showing a second embodiment of the lead frame inspection jig 200 according to the present invention.

As shown, the fixing plate 50 is coupled to one end of the body 10 instead of the fixing part 40 unlike the first embodiment.

At this time, by forming a groove 61 of a predetermined depth between each receiving groove 62 of the magazine 60, the fixing plate 50 is coupled to the groove 61 so that the jig 200 is magazine Can be coupled horizontally to (60). Since the rest of the structure is the same as the first embodiment of the present invention, the description is omitted.

Fig. 3 is a plan view showing a state of use of the lead frame inspection jig 100 (first embodiment) according to the present invention shown in Figs. 2A to 2C. Here, the use state of the second embodiment of the present invention shown in Figs. 4A and 4B is similar to that of the first embodiment, and thus description thereof is omitted.

First, the two projections 18 formed at one end of the jig 100 coincide with the accommodating groove 62 formed in the magazine 60 to temporarily couple the jig 100 to the magazine 60. Then, by rotating the lever 41 formed in the fixing portion 40 to one side, the protrusion 42 formed in the fixing portion 40 to overcome the elastic force of the spring 43 and to be pushed outward, that is, toward the magazine 60 . In this case, the protrusion 42 of the fixing part 40 is applied to the protrusion 18 of the jig 100 coupled to the magazine 60, so that the jig 100 is firmly fixed to the magazine 60. do.

Subsequently, the transfer unit 30 is moved toward the magazine 60, in which case the transfer block 34 of the transfer unit 30 slides along the rail 20.

Subsequently, when the end of the clamp 31 provided in the transfer part 30 is almost in contact with the end of the lead frame 70, pressing the other end of the clamp 31 opens the end of the clamp 31. Thus, the end of the lead frame 70 is fixed to the clamp 31.

Subsequently, the handle 33 of the transfer section 30 is pulled back to the end. At this time, the lead frame is transported by sliding the upper portion of the seating surface 11 between the support jaw 14a and the support jaw 14b where the groove 15 is formed. Subsequently, the groove 35 formed in the bottom surface of the clamp 31 of the transfer unit 30 is coupled to the ball 19 provided in the groove 17 of the seating surface 11, so that the transfer unit 30 is seated. It is fixed to some extent by the ball 19 of the surface 11. In this case, when the magnetic bodies 37a and 37b are provided inside the clamp 31 and the seating surface 11, the transfer unit 30 may be fixed to the body 10 or the seating surface 11 by magnetic force.

After the above process is completed, if the lever 41 provided in the fixing part 40 is retracted again, the protrusion 42 provided in the fixing part 40 moves to the inside of the fixing part 40 and thus the jig 100 can be separated from the magazine (60). After the jig 100 is separated from the magazine 60 as described above, the worker inspects the state of the lead frame 70.

After the inspection of the lead frame 70, the jig 100 is coupled to the magazine 60 again, and the transfer unit 30 is moved to the magazine 60 to fix the lead frame 70. .

As described above, although the present invention has been described with reference to the above embodiments, the present invention is not limited thereto, and various modified embodiments may be possible without departing from the scope and spirit of the present invention.

According to the lead frame inspection jig according to the present invention as described above, when the lead frame is taken out from a magazine containing a plurality of lead frames, the lead frame can be safely moved on the jig while being kept horizontal, There is an effect that the electrical connection between the lead frames can be maintained satisfactorily, and the short phenomenon of the fine pitched leads can be prevented.

Claims (11)

(Correction) A rectangular surface having a long side and a short side is formed on a rectangular plate, and a seating surface having a predetermined width is formed along the edge of one surface to allow the lead frame to be seated, and a predetermined depth inside the seating surface. A space portion is formed, and around the seating surface in the long side direction, a support jaw is formed thicker than the seating surface to prevent the lead frame from being separated, and in any one of the support jaws, the lead frame does not escape upward. A groove is formed in parallel with the support jaw, and any one of the supporting jaws includes: a body having a recessed surface formed on the same plane as the seating surface so that a worker can easily mount the lead frame on the seating surface; A plurality of rails positioned at a lower position than the seating surface of the body and coupled along a long side of the body in a substantially rod-like form between short sides of the body; The transport block is coupled to the rail so as to be movable along the rail, and the lead frame is transported by the external force of the operator onto the seating surface of the body while fixing the end of the lead frame inside the magazine on the upper part of the transport block. A transfer part having a clamp and a handle attached thereto to enable the transfer; And, The outer side of the long side of the body is installed so as to protrude to the outside of the short side, the lever is mounted so that the body can be fixed to the magazine, a certain length protrudes toward the magazine by the rotation of the lever and close to the side of the magazine Lead frame inspection jig consisting of a fixing portion formed so as to protrude. (delete) (delete) (delete) (delete) (delete) (Correction) The method of claim 1, wherein the bottom of the clamp is formed with a groove of a predetermined depth toward the top, and the seating surface is coupled to the groove of the clamp to another fixed depth to fix the transfer portion on the body The groove of the lead frame inspection jig, characterized in that the groove is also formed in the body, the groove is fixed to the ball is coupled to and separated from the groove of the bottom of the clamp. (Correction) The lead frame according to claim 1, wherein a magnetic body is installed at one end of the clamp, and a magnetic body is installed at a body corresponding to the clamp, so that the transfer unit can be coupled to and detached from the body. Inspection jig. (delete) The jig for testing a lead frame according to claim 1, wherein at least one protrusion is formed at one end of the body so as to be coupled to an accommodation groove in which the lead frame of the magazine is accommodated. (Correction) A rectangular surface having a long side and a short side is formed on a rectangular plate, and a seating surface having a predetermined width is formed along the edge of one surface to allow the lead frame to be seated, and a predetermined depth inside the seating surface. A space portion is formed, and around the seating surface in the long side direction, a support jaw is formed thicker than the seating surface to prevent the lead frame from being separated, and in any one of the support jaws, the lead frame does not escape upward. Grooves are formed in parallel with each other, and any one of the supporting jaws includes: a body having a recessed surface formed on the same plane as the mounting surface so as to easily mount the lead frame on the mounting surface by hand; A plurality of rails positioned at a lower position than the seating surface of the body and coupled along a long side of the body in a substantially rod-like form between short sides of the body; The transport block is coupled to the rail so as to be movable along the rail, and the lead frame is transported by the external force of the operator onto the seating surface of the body while fixing the end of the lead frame inside the magazine on the upper part of the transport block. A transfer part having a clamp and a handle attached thereto to enable the transfer; And, At one end of the body, a groove is formed between each receiving groove of the magazine and coupled to the groove and the lead frame inspection jig comprising a fixing plate formed to fix the body.