TWM493142U - Die bonding apparatus generating negative pressure to adhere material sheet and die - Google Patents

Description

Solid crystal device capable of generating negative pressure adsorbing chips and grains

The present invention is a solid crystal device, in particular, a solid crystal device capable of generating a negative pressure adsorbing web and a crystal grain.

The light-emitting diode (LED) emits light through the crystal grains in the support, and the process of fixing the crystal grains on the support is called "solid crystal". The advantages and disadvantages of the solid crystal technology will affect the quality of the light-emitting diode. Good or bad. The die is cut from the wafer. During the manufacturing process, the wafer is first cut into a plurality of crystal grains, and then the crystal grains are sucked one by one by the die bonding machine and transported to the terminal array (electrode) arranged in the matrix on the support. Fixing, and finally, each die and terminal group on the bracket is wired, packaged, and divided.

The conventional solid-state diode (LED) die-bonding machine solid-crystal mode uses the nozzle to contact the surface of the die to establish a vacuum, and then the die is sucked away from the blue film, and the die is fixed on the chip. Before being fixed on the web, the conductive paste is first placed on the solid point of the die, and then the die is placed on the web, so that the die is separated from the nozzle mainly by the viscosity of the conductive adhesive. Development, the grain volume is shrinking, resulting in the problem that the crystal grains cannot be separated from the nozzle, for example, the following: First, the surface of the crystal grain is sticky; Second, only a small amount of conductive rubber can be used according to the process requirements; Poor hysteresis. The above-mentioned several methods will make the traditional solid crystal method not conform to the process, and it is difficult to adjust the production parameters of the machine or the production of solid crystal can not be produced. The problem is that the machine-to-machine ratio is reduced indirectly, the machine UPH (English: Unit Per Hour abbreviation, Chinese: hourly output, capacity, capacity) is reduced, and the precision of the solid crystal is deteriorated.

Therefore, the author devote himself to research, and with the application of the theory, finally put forward a clever design, which can effectively improve the above-mentioned missing solid crystal device which can produce negative pressure adsorption material and die.

The purpose of this creation is to make the self-suction nozzle desorbed by the special design of the bearing seat and its first vent hole, the fixing plate and its second vent hole, and the vacuum generating unit, together with the third vent hole of the application piece. The granules are fixed on a web to improve the efficiency of the die bonding operation and reduce the cost of rework.

The technical means adopted for the above purpose is a solid crystal device capable of generating a negative pressure absorbing material and a die, and fixing a die detached from the suction nozzle to a material, comprising: a carrier. A plurality of first vent holes are disposed in the accommodating groove; a fixing plate is disposed in the accommodating groove, and the fixing plate is provided with a plurality of second vent holes; The vacuum generating unit comprises a pumping motor, a control valve and an exhausting pipe, one of the exhausting pipes is connected to the pumping motor, and the other end is connected to the first venting holes; wherein the material is The material is disposed on the fixing plate, and the material piece is provided with a plurality of third ventilation holes, and the first ventilation holes, the second ventilation holes and the third ventilation holes communicate with each other to allow gas to circulate.

In the embodiment of the present invention, one side of the carrier is provided with a pivotable pivoting member, and the pivoting member is provided with a first engaging portion.

In an embodiment of the present invention, a pressure plate is further disposed, and a second joint portion is disposed on one side of the pressure plate, and the second joint portion and the first joint portion are coupled to each other.

In order to more clearly describe the solid crystal device of the present invention which can produce a negative pressure absorbing material and a die, the following embodiments and accompanying drawings will be further described.

10‧‧‧Hosting

11‧‧‧ accommodating slots

12‧‧‧First vent

13‧‧‧ pivotal parts

131‧‧‧First joint

20‧‧‧ fixed board

22‧‧‧second vent

30‧‧‧vacuum generating unit

31‧‧‧Exhaust motor

32‧‧‧Exhaust pipe

33‧‧‧Control valve

40‧‧‧materials

42‧‧‧ third vent

50‧‧‧ pressure plate

51‧‧‧Second joint

Part A‧‧‧

C‧‧‧ grain

D‧‧‧ corresponding point

S‧‧‧ nozzle

P‧‧‧Predetermined placement area

Fig. 1 is a perspective view of the present embodiment.

Fig. 2 is an exploded view of the components of the present embodiment.

Fig. 3 is an enlarged plan view showing a portion A of Fig. 1.

Figure 4 is a side elevational view of the predetermined placement zone P of the nozzle picking die aligned with the web in the present embodiment.

Figure 5 is a side elevational view of the nozzle in which the suction nozzle is placed in the predetermined placement area P of the web of the present embodiment.

Figure 6 is a side elevational view of the die of the present invention in which the die detached from the nozzle is fixed to the web.

Please refer to the figures 1~6, which is a solid crystal device capable of generating a negative pressure absorbing material and a die. The die C desorbed from the suction nozzle S is fixed on a material 40, including: A carrier 10, a fixing plate 20, and a vacuum generating unit 30.

The locating base 10 is provided with a accommodating slot 11 . The accommodating slot 11 is provided with a plurality of first venting holes 12 . In this embodiment, a pivoting pivot is provided on one side of the cradle 10 . The member 13 is provided with a first engaging portion 131.

The fixing plate 20 is correspondingly disposed in the accommodating groove 11 , and the fixing plate 20 is provided with a plurality of second vent holes 22 , and the second vent holes 22 and the first vent holes 12 are connected to each other. In the embodiment, a hole is provided on one side of the fixing plate 20 to facilitate the circulation of the gas. Move and easy to set up, maintain or replace.

The vacuum generating unit 30 includes a pumping motor 31, a control valve 33 and an exhausting pipe 32. One end of the exhausting pipe 32 is connected to the pumping motor 31, and the other end of the pumping pipe is connected to the first The vent hole 12 is disposed, and the control valve 33 is disposed on the air suction pipe 32.

The material piece 40 is disposed on the fixing plate 20, and the material piece 40 is provided with a plurality of third ventilation holes 42. The third ventilation holes 42 and the second ventilation holes 22 are connected to each other for In the present embodiment, the web 40 is provided with a predetermined placement area P of each of the crystal grains C, the predetermined placement area P is a square area, and each of the predetermined placement areas P is provided with four third ventilation holes 42, but Without limitation, the arrangement of the third vent holes 42 must take into account the corresponding point D of the die C glue.

The solid crystal device capable of producing a negative pressure absorbing material and a die further comprises a pressing plate 50 for pressing the material 40 to avoid offset of the material 40 during the die bonding operation, and one of the pressure plates 50 A second joint portion 51 is disposed on the side, and the second joint portion 51 and the first joint portion 131 are coupled to each other.

During the process, the surface of the die C is contacted by the nozzle S, and after the vacuum is established, the die C is taken away from the blue film, and the die C is aligned with the predetermined placement zone P of the web 40, and then the nozzle S sucks the die C to be placed in the predetermined placement area P of the web 40. At this time, the vacuum generating unit 30 is in an activated state, and a negative is provided by the pumping motor 31 and a plurality of exhaust pipes 32 connected at one end thereof. Pressing, and being controlled by the control valve 33 (for example, a solenoid valve), the other end of the exhaust pipe 32 is connected to the first vent holes 12, and the first vent holes 12 and the second vent holes are The 22 series are connected to each other, whereby a negative pressure state is formed at the second vent holes 22 on the surface of the fixing plate 20, and the material 40 is placed on the fixing plate 20 to be adsorbed thereon; The material sheet 40 is provided with a plurality of third vent holes 42, and the third vent holes 42 and the second vent holes 22 are in communication with each other. Therefore, the third vent holes 42 on the surface of the web 40 also form a negative pressure state, so that when the crystal grains C contact the web 40, the crystal grains C will thus be adsorbed and fixed to the web. 40, and smoothly separated from the nozzle S, thereby accurately and efficiently complete the die bonding operation.

The present invention is characterized in that the carrier 10 and the fixing plate 20 are coupled to each other, and the plurality of first ventilation holes 12 of the carrier 10 and the plurality of second ventilation holes 22 of the fixing plate 20 communicate with each other. The suction motor 31 of the vacuum generating unit 30 provides a negative pressure, and is connected to the first vent hole 12 through the exhaust pipe 32 to form a negative pressure state on the surface of the fixing plate 20 to reach the absorbing material sheet 40 and the crystal grain C. Accurate and efficient completion of the die-fixing operation, reducing the cost.

In summary, the present invention solves the problem that the conventional solid crystal-dependent rubber material is used to separate the crystal grains from the nozzle. The present invention establishes a vacuum suction mechanism on the bearing seat and the fixed plate, and when the crystal grain contacts the material piece, The generated vacuum will fix the die on the web by the auxiliary nozzle, thereby having the following advantages: First, the process will not be affected by the type and dosage of the conductive adhesive, so as to improve the traditional solid crystal mode and rely too much on production. The problem of the characteristics of the rubber material; Second, the steps of simplifying the adjustment of the production parameters of the machine; 3. Increasing the ratio of the UPH to the man-machine ratio; 4. Increasing the fixing effect of the solid crystal device on the material; 5. Overcoming the surface viscosity of the grain. Increase the phenomenon that it is not easy to get rid of the nozzle.

The present invention is not limited to the scope of the present invention, and the shapes described in Structures, features, and spirits are subject to change. Therefore, the scope of patent protection of this creation is subject to the definition of the scope of the patent application attached to this specification.

10‧‧‧Hosting

30‧‧‧vacuum generating unit

40‧‧‧materials

50‧‧‧ pressure plate

Part A‧‧‧

Claims (3)

The invention relates to a solid crystal device capable of generating a negative pressure absorbing material and a crystal grain, which is obtained by adsorbing and fixing a die which is desorbed from a suction nozzle to a material piece, comprising: a bearing seat having a receiving groove thereon; The accommodating groove is provided with a plurality of first vent holes; a fixing plate is disposed in the accommodating groove, and the fixing plate is provided with a plurality of second vent holes; and a vacuum generating unit including a pumping motor a control valve and an air suction pipe, one end of the air suction pipe is connected to the air suction motor, and the other end of the air suction pipe is connected to the first ventilation holes, and the control valve is disposed on the air suction pipe; Wherein, the material is disposed on the fixing plate, and the material piece is provided with a plurality of third ventilation holes, and the first ventilation hole, the second ventilation hole and the third ventilation hole are connected to each other to For gas circulation. The solid crystal device capable of generating a negative pressure absorbing material and a die according to the first aspect of the invention, wherein a side of the carrier is provided with a pivotable pivoting member, and the pivoting member is provided with a first Joint. The solid crystal device capable of producing a negative pressure absorbing material sheet and a die according to the second aspect of the patent application, further comprising a pressure plate having a second joint portion on one side thereof, the second joint portion and the first joint portion A joint is coupled to each other.