Soldering flux temperature control storage method and device

Abstract

The invention relates to a soldering flux temperature control storage method and device, and the soldering flux temperature control storage method comprises the steps: 1, filling a soldering flux storage cabinet with soldering flux; 2, the storage temperature of the scaling powder in the cabinet is controlled; 3, the scaling powder is conveyed to scaling powder spraying equipment from the cabinet; 4, the stock condition of the soldering flux in the soldering flux spraying equipment is monitored in real time, and transmission is automatically stopped after the amount of the soldering flux in the soldering flux spraying equipment reaches a preset value; and when the soldering flux spraying equipment is lack of materials, filling is automatically carried out. A soldering flux temperature control storage device comprises a storage cabinet, a storage tank, a transmission pipeline, a transmission pump and soldering flux spraying equipment. The invention has the advantages that the storage of the soldering flux has a temperature control function, so that the active components of the soldering flux are protected; the scaling powder is automatically conveyed to the scaling powder spraying equipment from the storage tank, the storage tank is supplemented with the scaling powder at regular time, the scaling powder filling time is shortened, and automatic management of the scaling powder is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of semiconductor packaging, and in particular to a temperature-controlled storage method and a storage device for soldering flux. Background Art

[0002] In recent years, the semiconductor industry has developed rapidly, and flip chip is the mainstream technology in the industry. Among them, flux spraying equipment is a crucial link in flip chip stringing.

[0003] The storage temperature of the flux has a great impact on the packaging quality. Therefore, the flux needs to be stored in a constant temperature container to accurately control the storage temperature within the appropriate range, and the flux needs to be continuously filled into the flux spraying equipment to ensure that the active ingredients of the flux are not damaged during use. In the existing production line, the flux container of the flux spraying equipment is 100ml, and the flux needs to be replenished every 8 hours. The flux filling time is long, and the flux valve needs to be cleaned frequently and the flux transmission flow rate needs to be adjusted, resulting in a slowdown in production speed, and even major losses caused by improper human operation, which affects the output of the packaging production line. Summary of the invention

[0004] The object of the present invention is to provide a temperature-controlled storage method and storage device for soldering flux, which can not only safely store the soldering flux, but also facilitate the replenishment and transmission of the soldering flux.

[0005] A first aspect of the present invention provides a method for temperature-controlled storage of soldering flux, comprising the following steps:

[0006] Step 1: Fill the flux storage cabinet with flux;

[0007] Step 2: Control the storage temperature of the flux in the cabinet;

[0008] Step 3: Transfer the flux from the cabinet to the flux spraying equipment;

[0009] Step 4: Monitor the flux inventory in the flux spraying equipment in real time. When the flux amount in the flux spraying equipment reaches a preset value, the transmission is automatically stopped; when the flux spraying equipment is out of material, it is automatically filled.

[0010] In step 1 above, the flux storage cabinet is opened to quickly fill the flux, and after filling, the cabinet door is closed.

[0011] In the above step 4, the liquid level of the soldering flux in the soldering flux spraying equipment is monitored, so as to monitor the soldering flux inventory in the soldering flux spraying equipment in real time.

[0012] Based on the above-mentioned flux temperature control storage method, the second aspect of the present invention provides a flux temperature control storage device, which runs the above-mentioned flux temperature control storage method, and specifically includes a storage cabinet, a storage tank, a transmission pipeline, a transmission pump, and a flux spraying device;

[0013] The storage tank is located in the storage cabinet, the flux spraying equipment is connected to the storage tank via the transmission pipeline, and the transmission pipeline is connected to the transmission pump;

[0014] The soldering flux spraying device is provided with upper and lower liquid level sensors for sensing the soldering flux liquid level in the soldering flux spraying device, and the upper and lower liquid level sensors are connected to the transmission pump;

[0015] The storage cabinet is provided with a temperature control device;

[0016] The storage cabinet is provided with a control panel, and the control panel is connected to the upper and lower liquid level sensors and the temperature control device;

[0017] The storage tank is used to fill the soldering flux in step 1;

[0018] The temperature control device is used for the storage temperature of the soldering flux in step 2;

[0019] The transmission pipeline and the transmission pump are used for transmitting the soldering flux in step 3;

[0020] The upper and lower liquid level sensors are used for real-time monitoring of the flux inventory in the flux spraying equipment in step 4;

[0021] The control panel is used for automatic stop transfer and filling of the flux in step 4.

[0022] Preferably, the storage cabinet is provided with an easy-to-open cabinet door, and the cabinet door is provided with a viewing window.

[0023] As a further improvement of the invention, the storage tank is provided with a stock sensor, the cabinet door is provided with an alarm, and the alarm and the stock sensor are both connected to the control panel.

[0024] As a further improvement of the invention, the transmission pipeline is provided with a one-way valve.

[0025] As a further improvement of the invention, the material chamber of the soldering flux spraying equipment is a transparent shell, and the material chamber is provided with scale lines.

[0026] The focus of the present invention is to fill the storage tank with flux, and accurately control the storage temperature in the cabinet at 0-10°C through the existing temperature control equipment to ensure the active ingredients inside the flux; then preset the flux transmission program on the control panel, and transmit the flux in the tank to the flux spraying equipment through the transmission pump through the transmission pipeline. The upper and lower liquid level sensors on the flux spraying equipment can monitor the stock of the flux in the flux spraying equipment. When the flux liquid level in the flux spraying equipment is higher than the upper liquid level sensor, the upper liquid level sensor converts the sensed signal into an electrical signal and transmits it to the processor of the control panel, and then issues an instruction to the transmission pump to stop the transmission of the flux; accordingly, when the flux liquid level in the flux spraying equipment is lower than the upper liquid level sensor, the processor of the control panel receives the signal transmitted by the lower liquid level sensor, and issues an instruction to the transmission pump to continue transmitting the flux, thereby realizing automatic replenishment of the flux.

[0027] Compared with the prior art, the soldering flux temperature control storage method and storage device of the present invention have the following advantages:

[0028] (1) The storage of flux has a temperature control function, which protects the active ingredients of the flux while storing the flux;

[0029] (2) The flux is automatically transferred from the storage tank to the flux spraying equipment. It only needs to refill the storage tank regularly, which greatly reduces the filling time of the flux. In conjunction with the control panel, the automatic control and management of flux storage and transmission can be realized. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of a temperature-controlled storage device for soldering flux of the present invention;

[0031] Figure 2 It is a schematic diagram of transmission pipeline connection;

[0032] Figure 3 This is a control panel diagram. DETAILED DESCRIPTION

[0033] The specific implementation modes of the present invention are further described in detail below in conjunction with the accompanying drawings.

[0034] A first aspect of the present invention provides a method for temperature-controlled storage of soldering flux, comprising the following steps:

[0035] Step 1: Fill the flux storage cabinet with flux;

[0036] Step 2: Control the storage temperature of the flux in the cabinet;

[0037] Step 3: Transfer the flux from the cabinet to the flux spraying equipment;

[0038] Step 4: Monitor the flux inventory in the flux spraying equipment in real time. When the flux amount in the flux spraying equipment reaches a preset value, the transmission is automatically stopped; when the flux spraying equipment is out of material, it is automatically filled.

[0039] In step 1 above, the flux storage cabinet is opened to quickly fill the flux, and after filling, the cabinet door is closed.

[0040] In the above step 4, the liquid level of the soldering flux in the soldering flux spraying equipment is monitored, so as to monitor the soldering flux inventory in the soldering flux spraying equipment in real time.

[0041] like Figure 1-2 As shown, based on the above-mentioned flux temperature control storage method, the second aspect of the present invention provides a flux temperature control storage device, which runs the above-mentioned flux temperature control storage method, and specifically includes a storage cabinet 1, a storage tank 2, a transmission pipeline 3, a transmission pump 4, and a flux spraying device 6;

[0042] The storage tank 2 is located in the storage cabinet 1, and the flux spraying device 6 is connected to the storage tank 2 through the transmission pipeline 3, and the transmission pipeline 3 is connected to the transmission pump 4;

[0043] The flux spraying device 6 is provided with upper and lower liquid level sensors 61 for sensing the liquid level of the flux in the flux spraying device 6, and the upper and lower liquid level sensors 61 are connected to the transmission pump 4;

[0044] A temperature control device 14 is provided in the storage cabinet 1;

[0045] like Figure 3 As shown, the storage cabinet 1 is provided with a control panel 13, and the control panel 13 is connected to the upper and lower liquid level sensors 61 and the temperature control device 14;

[0046] Storage tank 2, used for filling the soldering flux in step 1;

[0047] Temperature control device 14, used for the storage temperature of the soldering flux in step 2;

[0048] The transmission pipeline 3 and the transmission pump 4 are used for transmitting the soldering flux in step 3;

[0049] Upper and lower liquid level sensors 61, used for real-time monitoring of the flux inventory in the flux spraying equipment in step 4;

[0050] The control panel 13 is used for automatically stopping the transfer and filling of the soldering flux in step 4.

[0051] The flux temperature control storage device of the present invention fills the storage tank 2 with flux, and accurately controls the storage temperature in the cabinet at 0-10°C through the existing temperature control device 14 to ensure the active ingredients inside the flux; then the flux transmission program is preset on the control panel 13, and the flux in the tank is transmitted to the flux spraying device 6 through the transmission pipe 3 by the transmission pump 4. The upper and lower liquid level sensors 61 on the flux spraying device 6 can monitor the amount of flux in the flux spraying device 6. When the flux spraying device 6 is 6, the flux liquid level is higher than the upper liquid level sensor 61, the upper liquid level sensor 61 converts the sensed signal into an electrical signal, and transmits it to the processor of the control panel 13, and then issues an instruction to the transmission pump 4 to stop the transmission of the flux; correspondingly, when the flux liquid level in the flux spraying equipment 6 is lower than the upper liquid level sensor 61, the processor of the control panel 13 receives the signal transmitted by the lower liquid level sensor 61, and issues an instruction to the transmission pump 4 to continue transmitting the flux, thereby realizing automatic replenishment of the flux.

[0052] In this embodiment, the storage cabinet 1 is provided with an easy-to-open cabinet door 11, and the flux can be filled from the storage tank 2 by quickly opening the cabinet door 11. A large-capacity storage tank 2 with a capacity of 1000 ml can be set to increase the storage capacity of the storage cabinet 1 and reduce the frequency of refilling.

[0053] The cabinet door 11 is provided with a viewing window 12 , through which the management personnel can intuitively check the stock status of the storage tank 2 in the cabinet.

[0054] The storage tank 2 is provided with a stock sensor 21, and the cabinet door 11 is provided with an alarm 15. The alarm 15 and the stock sensor 21 are both connected to the control panel 13. The stock sensor 21 can be an existing liquid level sensor. The liquid level sensor is installed at a suitable position of the storage tank 2 to monitor the remaining flux in the storage tank 2 in real time. The monitoring program is set on the control panel 13. When the flux liquid level in the tank is lower than the position where the stock sensor 21 is installed, the stock sensor 21 sends a signal to the processor of the control panel 13, so that the alarm 15 connected thereto sounds an alarm, reminding the management personnel to replenish the flux in the tank in time.

[0055] The transmission pipeline 3 is provided with a one-way valve 5, which can control the flow direction of the flux in the pipeline to prevent the remaining material in the pipeline from flowing back after the transmission is stopped, reduce the cleaning frequency of the pipeline glue valve, and extend the service life of the transmission pump 4.

[0056] The material chamber of the flux spraying device 6 is a transparent shell, and a scale line 62 is provided in the material chamber. The transparent shell can conveniently observe the flux condition in the flux spraying device 6. According to the debugging requirements, the position of the upper and lower liquid level sensors 61 can be quickly adjusted through the scale line 62.

[0057] The preferred embodiments of the present invention have been specifically described above, but the present invention is not limited to the described embodiments. Those skilled in the art may make various equivalent modifications or substitutions without violating the spirit of the present invention. These equivalent modifications or substitutions are all included in the scope defined by the claims of this application.

Claims

1. A method for temperature-controlled storage of soldering flux, characterized in that: The steps include: Step 1: Fill the flux storage cabinet with flux; Step 2: Control the storage temperature of the flux in the cabinet; Step 3: Transfer the flux from the cabinet to the flux spraying equipment; Step 4: Monitor the flux inventory in the flux spraying equipment in real time. When the flux amount in the flux spraying equipment reaches a preset value, the transmission is automatically stopped; when the flux spraying equipment is out of material, it is automatically filled.

2. A method for temperature-controlled storage of soldering flux as claimed in claim 1, characterized in that: Quickly fill the flux storage cabinet with flux by opening it, and then close the cabinet door when finished.

3. A method for temperature-controlled storage of soldering flux as claimed in claim 1, characterized in that: Monitor the liquid level of the flux in the flux spraying equipment, so as to monitor the flux inventory in the flux spraying equipment in real time.

4. A soldering flux temperature control storage device, characterized in that: Running the above-mentioned flux temperature control storage method, specifically including a storage cabinet, a storage tank, a transmission pipeline, a transmission pump, and a flux spraying device; The storage tank is located in the storage cabinet, the flux spraying equipment is connected to the storage tank via the transmission pipeline, and the transmission pipeline is connected to the transmission pump; The solder flux spraying device is provided with upper and lower liquid level sensors for sensing the solder flux liquid level in the solder flux spraying device, and the upper and lower liquid level sensors are connected to the transmission pump; The storage cabinet is provided with a temperature control device; The storage cabinet is provided with a control panel, and the control panel is connected to the upper and lower liquid level sensors and the temperature control device; The storage tank is used to fill the soldering flux in step 1; The temperature control device is used for the storage temperature of the soldering flux in step 2; The transmission pipeline and the transmission pump are used for transmitting the soldering flux in step 3; The upper and lower liquid level sensors are used for real-time monitoring of the flux inventory in the flux spraying equipment in step 4; The control panel is used for automatic stop transfer and filling of the flux in step 4.

5. A soldering flux temperature control storage device as claimed in claim 4, characterized in that: The storage cabinet is provided with a cabinet door which is easy to open, and the cabinet door is provided with a viewing window.

6. A soldering flux temperature control storage device as claimed in claim 4, characterized in that: The storage tank is provided with a stock sensor, and the cabinet door is provided with an alarm, and both the alarm and the stock sensor are connected to the control panel.

7. A soldering flux temperature control storage device as claimed in claim 4, characterized in that: The transmission pipeline is provided with a one-way valve.

8. A soldering flux temperature control storage device as claimed in claim 4, characterized in that: The material chamber of the soldering flux spraying equipment is a transparent shell, and the material chamber is provided with scale lines.

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