TWI634953B - Glue dispensing device and glue dispensing method - Google Patents

Abstract

A dispensing device used for bonding strengthening and preventing overflow of glue during the dispensing process. The device includes a diffusion device and an overflow preventing device. The overflow preventing device is located on a substrate on a carrier board and is on an optical element. Set a hole or groove around it to limit the overflow of the glue. The diffusion device is provided with a first-grade channel in a carrier plate, and a small hole is provided at the portion where the substrate and the optical element are in contact with the flow channel. When the gas passes into the flow channel, it will change and control the flow field of the glue solution, so that the glue can be transferred. Product diffusion and increase the contact length of the optical element, improve the strength of the optical component and the substrate dispensing positioning bond, and ensure the dispensing to prevent overflow and quality of the component assembly process.

Description

Dispensing device and method

This disclosure relates to a dispensing device and method, which are used to strengthen bonds and prevent overflow of glue during the dispensing process. The disclosure includes a diffusion device and an overflow prevention device.

At present, the dispensing process is mainly used to construct active and passive components in laser sources and optical communication components. In the manufacturing process, it is often necessary to use image vision to assist in alignment and use glue to fix the optical components. Laser and optical communication components are constructed to move toward a more miniaturized trend. The problem that needs to be solved is to focus on the prevention of overflow during dispensing and the strengthening of micro-distribution to strengthen the prevention of offset control during assembly.

At present, there are many factors that affect the quantitative accuracy of dispensing in the traditional dispensing process on the market, including fluid viscosity, fluid temperature, height and pressure of the liquid in the syringe, the inner diameter and length of the tip, the functional structure of the dispenser, the size and shape of the dispenser, Therefore, it is necessary to improve the quantitative accuracy and flow rate of dispensing through program control and mechanical control, which makes this program more complicated, or it is impossible to overcome the problem of dispensing adjacent components in a limited and narrow space. Often caused by the dispersion of glue solution caused by the overflow of adjacent components, which seriously affects the quality of the dispensing process, component positioning and optical coupling efficiency.

Therefore, in view of the aforementioned various defects, which cause the current problem of poor performance, this is actually a technical problem that people in the technical field want to solve.

This disclosure is a dispensing device, which is used to strengthen bonding and prevent overflow of glue during the dispensing process.

The dispensing device includes a diffusion device and an overflow prevention device. The overflow prevention device is located on a substrate on a carrier board, and a hole or groove is set around the optical element to limit the overflow of the glue product.

The diffusion device is provided with a first-grade channel in a carrier plate, and a small hole is provided at the portion where the substrate and the optical element are in contact with the flow channel. When the gas passes into the flow channel, it will change and control the flow field of the glue solution, so that Product diffusion and increase the contact length of optical components, improve the strength of the optical component and the substrate positioning positioning bond, and the overflow prevention device can ensure the dispensing to prevent overflow, and improve the yield rate of component assembly process quality.

An embodiment applied to a diode pump laser source. The beam of the diode laser source is reflected through three sets of optical elements, so that the laser light point is located within the coupling range. The diffusion of the optical elements on the carrier plate is solidified. The device and anti-overflow device are the same as those stated above.

There are many factors that affect the accuracy of dispensing, including the viscosity of the adhesive, the temperature of the fluid, the height and pressure of the liquid in the syringe, the inner diameter and length of the needle tip, the functional structure of the dispenser, and the size and shape of the dispensing, so it must be controlled by a program. And mechanical control to improve the quantitative accuracy and flow rate of dispensing. Therefore, according to different conditions of the dispensing process, eight different holes or grooves are used. One layer and multiple levels of varying geometric holes or grooves, respectively. The eight different holes or grooves can be circular, multiple circles, multiple ovals, ovals, squares, multiple squares, rectangles, multiple rectangles, triangles. Geometric shapes such as multiple triangles are applicable.

A method of dispensing, including: 1. first performing adhesive dispensing to a lateral flow channel The upper end, that is, the small hole of the carrier board; 2. Place the optical components, such as glass lenses, above the adhesive, leaving a gap; 3. Pass the airflow to the lateral flow channel, and then the straight flow channel.

The above description of the content of the present invention and the description of the following embodiments are used to demonstrate and explain the principle of the present invention, and provide further explanation of the scope of the patent application of the present invention.

A‧‧‧ Dispensing Device

B‧‧‧ Diffusion device

C‧‧‧ Overflow prevention device

D‧‧‧Jig

D1‧‧‧ Clearance

1‧‧‧ load plate

10‧‧‧ upper face

11‧‧‧ side

12‧‧‧ entrance

13‧‧‧hole or groove

14‧‧‧ small hole

15‧‧‧ cross

21‧‧‧optical element

22‧‧‧ Adhesive

31‧‧‧cross runner

32‧‧‧Straight Runner

51‧‧‧bearing plate

61‧‧‧bearing plate

62‧‧‧ substrate

63‧‧‧diode laser source

63a‧‧‧Diode fixing screw

64‧‧‧ bulkhead

65‧‧‧ focusing lens

66‧‧‧Negative power hole

66a‧‧‧Positive power hole

67‧‧‧Fixing holes

71‧‧‧ round groove

72‧‧‧Multiple circular grooves

73‧‧‧oval groove

74‧‧‧Multi-oval groove

75‧‧‧square groove

76‧‧‧Multiple square grooves

77‧‧‧ rectangular groove

78‧‧‧Multiple rectangular grooves

81‧‧‧ substrate

82‧‧‧through hole

83‧‧‧Export

84, 85‧‧‧ fixing holes

FIG. 1 is a diffusion device and an overflow prevention device of the disclosure; FIG. 2 is a schematic view of fixing an optical element and a carrier plate of the disclosure; FIG. 3 is an enlarged schematic view of a branch channel of the diffusion device of the disclosure; 4 is a schematic diagram of the dispensing process of the disclosure; Figures 5-1 and 5-2 are conventional schematic diagrams of the dispensing process without the disclosure of the diffusion device; Figure 6 is a schematic diagram of the diode pump; Figure 7 is Reveal eight kinds of holes or grooves.

FIG. 8-1 and FIG. 8-2 are schematic diagrams of the separated dispensing device of the present disclosure.

The following is a description of the implementation of the present disclosure through specific examples. Those skilled in the art can easily understand other features and effects of the present disclosure from the content disclosed in this description. This disclosure can also be implemented or applied by other different specific embodiments.

The purpose of this disclosure is to create a dispensing device A, so as to strengthen the bonding and prevent the overflow of the glue during the dispensing process. As shown in FIGS. 1 to 3, the dispensing device A includes a diffusion device B and an overflow prevention device C. The overflow prevention device C is disposed on a carrier plate 1. The end surface 10 is provided with at least one hole or groove 13 around the optical element 21 to limit the overflow of the adhesive 22. Adhesive 22 can use AB glue or UV glue. These two kinds of glue 22 are used to quickly glue non-metal and metal. The diffusion device B is disposed inside a carrier plate 1 and is provided with a lateral flow path 31 and at least a straight flow path 32. The straight flow path 32 communicates with the lateral flow path 31, respectively. The gas inlet 12 of the lateral flow path 31 is provided at The side surface 11 of the carrier plate 1 runs through the carrier plate 1 at least to the flow channel 32. The cross mark 15 is the center position where the optical element 21 is placed, and at least one small hole 14 is provided on the carrier plate 1 in contact with the optical element 21 It is in communication with the at least straight flow channel 32. When the gas flows in from the inlet 12 of the lateral flow channel 31 and then flows into the straight flow channel 32, the flow field of the viscose 22 will be changed and controlled, so that the viscose 22 can be changed. Diffusion and increase the contact length of the optical element, improve the strength of the adhesive positioning bond between the optical element 21 and the carrier plate 1, and the overflow prevention device C ensures that the adhesive 22 prevents overflow, and improves the quality yield of the component assembly process.

As shown in Figure 4-1 to Figure 4-4, it is a schematic diagram of the method of dispensing dispersion and preventing overflow. Figure 4-1 is the first step of dispensing the adhesive 22 to the upper end of the lateral flow channel 31, that is, the load. On the small hole 14 of the plate 1, FIG. 4-2 is for placing the optical element 21, such as a glass lens above the adhesive 22, leaving a gap D1, and FIG. 4-3 is for the airflow to the lateral flow channel 31, and then to the After going straight to the flow channel 32, as shown in Figure 4-4, the airflow will form an airflow from the bottom of the adhesive 22 and the optical element 21 to change and control the flow field of the adhesive 22, so that the adhesive can be diffused and the contact length of the optical element 21 can be increased. In order to increase the bonding strength of the glue, at least one hole or groove 13 is placed around the optical element 21 to limit the overflow of the adhesive 22.

Figure 5-1 and Figure 5-2 are schematic diagrams of the conventional dispensing process without the disclosed diffusion device; Figure 5-1 is the first step of dispensing adhesive 22 onto the carrier plate 51, and Figure 5-2 In order to place the optical element 21, if a glass lens is placed above the adhesive 22, a gap D1 is reserved. It is not possible to diffuse the adhesive and increase the contact length of the optical element to increase the bonding strength of the glue.

Figure 6 shows an example applied to a diode pump laser source. The light beam of the diode laser source 63 is reflected through three groups of optical elements 21, and the 63a diode fixing screw fixes the diode laser source 63. So that the laser light point is located within the coupling range; wherein the optical element 21 is cured on the carrier plate 61, the diffusion device B and the overflow prevention device C are the same as stated in the above FIGS. 1 to 3, the optical element 21 is cured on On the substrate 62, the substrate 62 and the carrier plate 61 can be integrally formed. Because the substrate 62 and the optical element 21 are in contact with each other to be solidified and bonded, the substrate 62 must be precisely ground. A focusing lens 65 is provided on the separator 64, and a negative power hole 66 and a 66a positive power supply The hole and the fixing hole 67 are fixing holes of the carrier plate 61.

FIG. 7 is a schematic diagram of eight types of holes or grooves, with one layer and multiple layers of varying geometric holes or grooves. This method can be circular, multiple circles, multiple ovals, ovals, squares, multiple squares, or rectangles. , Multiple rectangles, triangles, multiple triangles and other geometric shapes are applicable. Shows such as circular groove 71, multiple circular groove 72, oval groove 73, multiple oval groove 74, square groove 75, multiple square groove 76, rectangular groove 77, multiple rectangular groove 78 Other shapes such as triangles are also within the scope of this patent.

The adhesion of non-metals and metals in the quantitative dispensing process, the most basic requirement is to maintain the same viscosity, flow rate and dispensing effect throughout the entire dispensing process. There are many factors that affect the accuracy of dispensing, including the viscosity of the adhesive, the temperature of the fluid, the height and pressure of the liquid in the syringe, the inner diameter and length of the needle tip, the functional structure of the dispenser, and the size and shape of the dispensing, so it must be controlled by a program. And mechanical control to improve the quantitative accuracy and flow rate of dispensing. So according to the dispensing process Under different conditions, the above eight different holes or grooves are used to control the quality of dispensing.

Figure 8-1 and Figure 8-2 show a separate dispensing device. The diffusion device B and the overflow prevention device C of the above-mentioned dispensing device A can be separated. The diffusion device B is set in a fixture D and diffuses. The device B includes a lateral flow path 31 and a straight flow path 32, which are the same as those described in FIG. 3 above. Another substrate 81 is provided with an overflow preventing device C. The overflow device C includes at least one hole or groove 13, and at least one through hole 82 is provided in the hole or groove 13. The outlet 83 passes through and uses a stud to pass through the fixing hole 85 on the substrate 81 and the fixing hole 84 on the jig D to fix the substrate 81 on the jig D. After the optical element 21 is cured on the substrate 81, The substrate 81 is then separated from the jig D.

This disclosure uses glue bonding to strengthen and prevent overflow and unused glue bonding to strengthen and prevent overflow in the X-axis. The bond strength of the glue bond is about 3 times. Larger, so it has the effect of strengthening the bonding of the glue, as shown in the following table, which proves that the disclosure is novel and advanced.

The above-mentioned embodiments only exemplify the principle and effect of the present disclosure, and are not intended to limit the present disclosure. Anyone familiar with this technique can modify and change the above embodiments without departing from the spirit and scope of this disclosure. Therefore, the scope of protection of the rights in this disclosure, It should be listed in the scope of patent application mentioned later.

Claims (21)

The utility model relates to a dispensing device, which is applied to an adhesive to fix an optical element on a carrier plate, and includes a diffusion device. The diffusion device is arranged inside the carrier plate, and a lateral flow channel and at least a straight flow channel are provided on the load plate. At least one small hole is arranged on the bearing plate in contact with the optical element to communicate with the at least straight flow channel. A side of the bearing plate is provided with a gas inlet of a lateral flow channel, and the straight flow channel is respectively connected to the lateral flow channel. The communication enables a gas to flow out from the at least one small hole communicating with the straight flow channel, and changes and controls the flow field of the viscose. The dispensing device according to item 1 of the scope of patent application, wherein a cross mark is provided on the carrier plate as a central position for placing the optical element. The dispensing device described in item 1 of the patent application scope further includes an overflow prevention device. The dispensing device according to item 3 of the scope of patent application, wherein the overflow prevention device has at least one hole or groove to limit the overflow of the glue product. The dispensing device according to item 4 of the scope of patent application, wherein the at least one hole or groove is a circle, a multiple circle, a multiple oval, an oval, a square, a multiple square, a rectangle, a multiple rectangle, a triangle, a multiple One of triangle geometric shapes. The dispensing device according to item 1 of the scope of patent application, wherein when the gas flows in from the gas inlet of the lateral flow channel and then flows into the straight flow channel, the gas passes through the bearing through the straight flow channel. A plate, and through the at least one small hole provided in the contact portion of the optical element, the flow field of the viscose is changed and controlled. The dispensing device according to item 3 of the scope of patent application, wherein the anti-overflow device is provided separately from the diffusion device, and the anti-overflow device is fixed to the diffusion device using a stud. According to the dispensing device described in item 1 of the scope of patent application, wherein the adhesive is AB glue or UV glue, the non-metal and metal can be glued quickly. The dispensing device described in item 1 of the scope of the patent application is applied to the diode pump laser source, and further includes at least one diode laser source to pass the diode pump laser beam through the optics respectively. The component reflects so that the laser light spot lies within the coupling range. The dispensing device according to item 9 of the scope of patent application, wherein a cross mark is provided on the carrier plate as a center position for placing the optical element. The dispensing device described in item 9 of the scope of patent application, further includes an overflow prevention device. The dispensing device according to item 11 of the scope of patent application, wherein the overflow prevention device has at least one hole or groove to limit the overflow of the glue product. The dispensing device according to item 12 of the scope of patent application, wherein the at least one hole or groove is a circle, a multiple circle, a multiple oval, an oval, a square, a multiple square, a rectangle, a multiple rectangle, a triangle, a multiple One of triangle geometric shapes. The dispensing device according to item 9 of the scope of the patent application, wherein when the gas flows in from the inlet of the lateral flow channel and then flows into the vertical flow channel, the gas passes through the carrier plate and contacts the optical element. The at least one small hole provided in the part changes and controls the change of the viscose flow field. The dispensing device according to item 9 of the scope of patent application, wherein the at least one straight flow channel runs through the carrier plate. The dispensing device according to item 9 of the scope of patent application, further comprising at least one focusing lens. A method for dispensing, comprising: first dispensing an adhesive onto at least one small hole of a carrier plate communicating with a lateral flow channel and a straight flow channel; placing the optical element above the adhesive, and A gap is reserved between the optical element and the carrier plate; and a gas is passed into the lateral flow channel, and then into the straight flow channel, so that the gas sets the at least the optical element from the straight flow channel toward the carrier plate. A small hole flows out. According to the dispensing method described in item 17 of the scope of patent application, wherein the gas will form an airflow from the bottom of the adhesive and the optical element to change and control the change of the adhesive flow field, so that the adhesive can be diffused and increased. Optics contact length to increase bond strength. The method of dispensing according to item 17 of the scope of patent application, wherein at least one hole or groove is provided around the optical element to limit the adhesive overflow. The dispensing method according to item 17 of the scope of the patent application, wherein the vertical flow channel is in communication with the horizontal flow channel, so that the gas flows out of the vertical flow channel, and changes and controls the flow field of the viscose. The dispensing method according to item 19 of the scope of the patent application, wherein the at least one hole or groove is circular, multiple circular, multiple oval, oval, square, multiple square, rectangular, multiple rectangle, triangular, multiple One of triangle geometric shapes.