JP2000158688A - Micro stamper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To put a check mark quickly and surely onto a micro part, e.g. a miniaturized IC, by providing a power supply block for reciprocating a pin electrode supporting rod with respect to a specified contact position, a resistive heater disposed above a base when the power supply block is moved, and a controller. SOLUTION: A head drive unit comprises an up/down drive motor 1, a pin electrode 5 being moved up and down, a power supply block 4 having a pin electrode supporting rod 3, a reel drive motor 6, ribbon tension reels 8, 10, 13, a power supply reel 9, and a ribbon winding motor 11. The motor 1 moves the block 4 tip and down to reciprocate the supporting rod 3 vertically and lowers the pin electrode 5 until the lower part thereof pushes the resistive heater 16 of a tape electrode and presses a micro part 17 with a force of set level. When the part 17 is pressed, a stamp material is fused thermally and the stamp material at the lower part of an electric conductive part adheres to a stamp point of the part 17 thus completing the marking.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fine stamping device for checking fine components such as ICs, which are gradually reduced in size, and marking good and defective check marks on these fine components.

[0002]

2. Description of the Related Art Hitherto, a check mark of a fine component such as an IC has been made by ejecting ink with an ink jet or the like.

[0003]

However, such a method of forming a check mark by jetting an ink such as an ink-jet requires a long process, takes at least several minutes at the minimum, and is capable of forming a mark of about 50 μφ. Did not. Accordingly, there is a current situation where it is desired to develop a stamp device that can be used to check small check marks of non-defective products and defective products, which are to be performed after checking fine components such as ICs, which will become increasingly smaller. SUMMARY OF THE INVENTION It is an object of the present invention to provide a fine stamp device capable of quickly and surely attaching a check mark of a fine component such as an IC to be miniaturized as described above.

[0004]

According to the present invention, there is provided a needle electrode supporting round bar having a needle electrode, a power supply block for reciprocating the needle electrode supporting round bar to a predetermined contact position, and When the needle electrode supporting round bar is moved to the predetermined position, a resistance heating element having a tape electrode contacting above the base and a control device for supplying power to each drive motor for winding the resistance heating element are provided. A resistance heating element having a tape electrode provided with a hole for alignment is wound around a ribbon winding reel and a take-up reel attached to both sides of a power supply block, and wound around the ribbon winding reel. The ribbon-shaped resistance heating element is driven in the longitudinal direction by bringing the tip of the needle electrode support round bar into contact with a part of the resistance heating element and driving the ribbon winding reel or the ribbon take-up reel. Not one in which was to put a check mark.

[0005] The ribbon-shaped resistance heating element has a heating element having a high melting point and a high electric resistance, and a metal having a low electric resistance laminated on an intermediate portion and a metal or resin having a low melting point on the lower part. is there. The needle electrode uses molybdenum as a high melting point material or conductive ceramic.

[0006]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 is a perspective view of the present invention, FIG. 2 is a front view showing a tip portion of a needle electrode supporting round bar of the present invention and a relation between a resistance heating element and a fine part, and FIG. FIG. 4 is a view showing an example of a fine component with a check mark, FIG. 5 is a partial perspective view of a resistance heating element, and FIG. 6 is a sectional view taken along the line VI-VI in FIG.

As shown in FIG. 1, the fine stamp apparatus of the present invention basically comprises a base table 14, a head drive unit and a control unit 15 provided on the base table. The head drive unit includes an up / down drive motor 1, a power supply block 4 having a needle electrode 5 that moves up and down by the up / down drive motor, a needle electrode support round bar 3, a reel drive motor 6, ribbon take-up reels 7, 12, ribbon tension. It comprises reels 8, 10 and 13, a power supply reel 9 and a ribbon winding motor 11.

The vertical drive motor 1 replaces the rotational movement of the motor with the vertical movement of the power supply block 4 and reciprocates the needle electrode support round bar 3 provided in the power supply block 4 up and down. Thus, as shown in FIG. 3, the needle electrode 5 is mounted vertically. The needle electrode supporting round bar 3 descends, and the pressure at which the lower part of the needle electrode 5 is pressed against the fine component 17 while pressing the resistive heating element 16 which is a ribbon-shaped tape electrode is lowered until the set pressure is reached.
Electricity passes from the control device 15 through the power supply reel 9 to the needle electrode 5 via the electric heating portion 16c directly below the needle electrode 5 via the electric conductor portion 16b, and from the needle electrode 5 to the control device 15
Return to When the micro switch 17 is pressed, when the power switch 15e is pressed, electricity flows for a set time.

When electricity passes through the resistance heating portion 16c, the generated heat melts the stamp material 16d, and the stamp material 16d below the electric conductor portion 16b adheres to the stamp point of the fine component 17, thereby completing the marking. . The density of the stamp to be transferred can be freely adjusted by the needle electrode pressing adjustment screw 2.

The ribbon-shaped resistance heating element 16 is a resistance heating section 16c which is a pure metal such as molybdenum or tungsten or an alloy such as nickel chrome or a heating element such as carbonaceous or oxide having the highest melting point and the highest electric resistance. Is provided at the upper part, and an electric conductor part 16b made of a pure metal such as copper or aluminum having a small electric resistance or a copper alloy or a tin alloy having a small electric resistance is provided on the intermediate part, and the urethane is provided at the lower part. A stamp material 16d such as a resin, a polyamide resin, a tin alloy having a low melting point, or aluminum is overlapped. The conditions of the vertical movement of the power supply block 4 and the intermittent movement of the resistance heating element 16 are automatically performed by a preset control device 15, but the needle electrode pressing adjustment screw 2 is manually performed. ing.

The resistance heating element 16 is formed by laminating the resistance heating portion 16c on the upper portion, the electric conductor portion 16b in the middle, and the stamp material 16d on the lower portion, by combining the electric conductor portion 16b with the stamp material 16d. It is also possible to have a two-layer structure.

The control device 15 includes an input setting section 15a, a power supply section 15b, an operation section 15c, a lamp 15d, and a switch 15e.
The negative power supply of the power supply unit 15b is connected to the power supply reel 9 via a cord, and the positive power supply is connected to a power supply block via a cord.

Hereinafter, a method of using the fine stamp apparatus of the present invention configured as described above will be described.

After the resistance heating element 16 is mounted, the control device 1
5 while confirming the display of the input setting section 15a.
In step c, predetermined power supply conditions, speed conditions of the power supply block 4, and rotation speeds of the ribbon take-up reel 7 and the ribbon take-up reel 12 are set. The component 17 is placed, the input setting section 15a confirms that there is no error in the setting, and the switch 15e is turned on.

When the switch 15e is turned on, the needle electrode 5
Is pressed down while pressing the resistive heating element 16, which is a ribbon-shaped tape electrode, to the fine component 17 until the pressure reaches the set pressure. When the energizing switch 15f is pressed while the fine component 17 is being pressed, electricity flows for a set time, and the heat generated when this electricity passes through the resistance heating portion 16c melts the stamp material 16d, and the fine component 17 The stamp material 16d adheres to the stamp point 17 and the marking is completed. When the marking is completed, the power supply block 4 is reflexively raised.

When the resistance heating element 16 is a combination of the electric conductor portion 16b and the stamp material 16d, the needle electrode 5
The heat generated when the electric power passes through the resistance heating portion 16c melts the electric conductor portion 16b, which also serves as the stamp material 16d, and the melted material presses the stamp at the stamp point of the fine component 17, completing the marking. I do.

[0017]

As described above, the fine stamping device of the present invention generates heat in a narrow contact portion by contacting the needle electrode with the resistance heating element of the tape electrode, and generates a large amount of heat in a narrow range. The marking is reliably performed, and is particularly effective for marking fine parts which are regarded as severe. Further, the present invention is not only capable of performing the marking step, which has conventionally taken several minutes, but in just a few seconds, and has a feature that it can sufficiently cope with a mark of about 50 μφ.

[Brief description of the drawings]

FIG. 1 is a perspective view of the present invention.

FIG. 2 is a front view showing a tip portion of a needle electrode supporting round bar of the present invention and a relation between a resistance heating element and a fine portion.

FIG. 3 is a diagram showing a state where a check mark is provided.

FIG. 4 is a diagram showing an example of a micro component with a check mark.

FIG. 5 is a partial perspective view of a resistance heating element.

FIG. 6 is a sectional view taken along line VI-VI in FIG. 5;

[Explanation of symbols]

 REFERENCE SIGNS LIST 1 vertical drive motor 2 needle electrode pressing adjusting screw 3 needle electrode support round bar 4 power supply block 5 needle electrode 6 reel drive motor 7 ribbon take-up reel 8 ribbon tension reel 9 power supply reel 10 ribbon tension reel 11 ribbon winding motor 12 Ribbon winding reel 13 Ribbon tension reel 14 Base stand 15 Controller 15a Input setting unit 15b Power supply unit 15c Operation unit 15d Lamp 15e Switch 15f Energizing switch 16 Resistance heating element 16a Hole 16b Electric conductor 16c Resistance heating 16d Stamp material 16dd Projection Part 17 Fine parts

Claims (4)

[Claims] 1. A needle electrode supporting round bar having a needle electrode, a power supply block for reciprocating the needle electrode supporting round bar to a predetermined contact position, and moving the needle electrode supporting round bar to the predetermined position. In this case, a ribbon-shaped resistance heating element having a tape electrode corresponding to the needle electrode on the base table, a power supply unit and an operation unit for supplying power to the electrode, an input setting unit, a switch,
A fine stamping device comprising a control device in which a lamp is provided. 2. A ribbon-shaped resistance heating element having a tape electrode provided with a positioning hole is wound around a ribbon winding reel and a take-up reel attached to both sides of a power supply block. The ribbon-shaped resistance heating element is driven in the length direction by bringing the tip of the needle electrode support round bar into contact with a part of the resistance heating element to be wound and driving the ribbon winding reel or the ribbon winding reel. 2. The fine stamp device according to claim 1, wherein a check mark is provided. 3. The resistance heating element in the form of a ribbon having a tape electrode, wherein a resistance heating element is used in an upper part of the electric transmission part and a stamp material is used in a part of the lower part. Fine stamping device. 4. A fine stamping device characterized in that a resistance heating element has a two-layer structure by using a stamp material for an electric transmission portion.