Device for automatically identifying residual solder paste of needle cylinder based on inductive sensor

Abstract

The utility model relates to the technical field of packaging of discrete semiconductor devices, in particular to a device for automatically identifying solder paste allowance of a needle cylinder based on an inductive sensor. The problems that in the prior art, manual regular checking of the remaining amount of solder paste of a needle cylinder is mostly depended on, replacement is not timely, and consequently welding is poor, and the solder paste is insufficient or lack of tin are caused are solved. The device comprises a needle cylinder, the needle cylinder is used for containing solder paste, and the needle cylinder is arranged on the inner side of a cylinder fixing piece; the solder paste position component is arranged in the needle cylinder, the solder paste position component and the highest position of the solder paste move synchronously, and the solder paste position component can fall down along with consumption of the solder paste; according to the utility model, a traditional manual inspection mode is replaced by an intelligent monitoring means, so that the accuracy is effectively improved; and the welding quality problem caused by insufficient solder paste due to tin replacement delay is reduced, and the product quality and consistency are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of semiconductor discrete device packaging, in particular to a device for automatically identifying syringe solder paste residue based on an inductive sensor. Background Art

[0002] In the clip bond process of discrete semiconductor devices, precise dispensing of solder paste is crucial. Existing technologies mostly rely on manual regular inspection of the remaining amount of solder paste in the syringe. This method is prone to untimely replacement, which can cause problems such as poor welding, insufficient soldering or lack of soldering, seriously affecting production efficiency and product quality. Utility Model Content

[0003] (1) Technical issues to be solved

[0004] In order to overcome the existing technology that mostly relies on manual regular inspection of the remaining amount of solder paste in the syringe, this method is prone to untimely replacement, thereby causing problems such as poor welding, insufficient tin or lack of tin.

[0005] (2) Technical solution

[0006] The technical solution of the utility model is: a device for automatically identifying the residual amount of solder paste in a syringe based on an inductive sensor, comprising a soldering device and a cylinder fixing part, and also comprising:

[0007] A syringe, the syringe is used to place solder paste, and the syringe is arranged on the inner side of the cylinder fixing member;

[0008] A solder paste position component, which is disposed inside the syringe and moves synchronously with the highest position of the solder paste, and falls as the solder paste is consumed;

[0009] A sensing component, wherein the sensing component is fitted with a solder paste position component;

[0010] A sensor, wherein the sensor is arranged on the outside of the syringe and is used to sense the position of the sensing component;

[0011] Alarm: When the sensor senses the sensing component, the alarm will sound an alarm;

[0012] The sensor is connected to the industrial control system, and the alarm is connected to the industrial control system.

[0013] Preferably, the utility model replaces the traditional manual inspection method with intelligent monitoring means, which effectively improves the accuracy, reduces the welding quality problems caused by insufficient solder paste due to delayed tin replacement, and improves product quality and consistency.

[0014] Furthermore, the solder paste positioning component is a piston, which can separate the solder paste from the sensing component to allow the solder paste to descend steadily.

[0015] Furthermore, the inductive component is an iron disc, and the sensor is an inductive sensor.

[0016] Furthermore, it also includes a sensor fixing part, and the sensor is fixed on one side of the barrel fixing part through the sensor fixing part. The sensor fixing part can adjust the position of the sensor. Due to different models of syringes, some syringes have longer needle tips, and the position of the sensor can be adjusted through the sensor fixing part to adapt to the solder consumption position.

[0017] (3) Beneficial effects

[0018] Compared with the prior art, the beneficial effects of the utility model are:

[0019] 1. The utility model replaces the traditional manual inspection method with intelligent monitoring means, effectively improving the accuracy; reducing the welding quality problems caused by insufficient solder paste due to delayed tin replacement, and improving product quality and consistency;

[0020] 2. The utility model device realizes automatic monitoring and early warning of the remaining amount of solder paste in the syringe by cooperating with precise inductive sensors and iron discs, which greatly reduces the risk of misjudgment caused by human intervention and improves the automation level and process stability of semiconductor packaging production. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 What is shown is a schematic diagram of the structure of the utility model;

[0022] Figure 2 Shown is a schematic diagram of the structure of the syringe and its components in the utility model;

[0023] Figure 3 The schematic diagram of the split structure of the syringe and its components in the utility model is shown;

[0024] Figure 4 What is shown is a schematic diagram of the structure of the solder paste position component and the sensing component in the utility model.

[0025] Explanation of the reference numerals: 1. Soldering device; 2. Cylinder fixing member; 3. Syringe; 4. Solder paste position component; 5. Sensing component; 6. Sensor. DETAILED DESCRIPTION

[0026] The utility model is further described below in conjunction with the accompanying drawings and embodiments.

[0027] Embodiment 1:

[0028] See also Figure 1-4 The utility model provides an embodiment: a device for automatically identifying the amount of solder paste in a syringe based on an inductive sensor, comprising a soldering device 1 and a cylinder fixing member 2, including:

[0029] The syringe 3 is used to place solder paste. The syringe 3 is arranged on the inner side of the cylinder fixing member 2. The soldering device 1 applies air pressure to the inside of the syringe 3 through a pneumatic device so that the soldering agent solders the components.

[0030] The solder paste position component 4 is arranged inside the syringe 3, and the solder paste position component 4 moves synchronously with the highest position of the solder paste, and the solder paste position component 4 will fall as the solder paste is consumed;

[0031] The sensing component 5 is fitted with the solder paste position component 4;

[0032] Sensor 6, sensor 6 is arranged on the outside of syringe 3, sensor 6 is used to sense the position of sensing component 5; alarm, when sensor 6 senses sensing component 5, alarm will sound, industrial control system, sensor 6 is connected to industrial control system, alarm is connected to industrial control system, solder paste position component 4 is piston, sensing component 5 is iron disc, sensor 6 is inductive sensor 6. Also included is sensor fixing part 7, sensor 6 is fixed to one side of barrel fixing part 2 through sensor fixing part 7, sensor fixing part 7 can adjust the position of sensor 6, due to different models of syringe 3, some syringe 3 have long needle tip, and the position of sensor 6 can be adjusted through sensor fixing part 7.

[0033] When the soldering device 1 is working:

[0034] (1) When the solder paste in the syringe 3 is used, the piston and the iron disc move downward synchronously;

[0035] (2) When the solder paste is about to be consumed, the piston moves downward together with the iron disc, and the iron disc also moves to the consumption position. The inductive sensor 6 senses the iron disc, and the inductive sensor 6 feedbacks the preference to the industrial control system. The industrial control system receives the signal transmitted by the inductive sensor 6, and the industrial control system controls the alarm to sound an alarm. The alarm reminds the operator to replace the solder paste in time to avoid the situation of insufficient or lack of tin;

[0036] (3) The industrial control system can also control the soldering device 1 to stop soldering after receiving the signal transmitted by the inductive sensor 6, thereby reducing the soldering quality problems caused by insufficient solder paste due to delayed tin replacement and improving product quality and consistency.

[0037] Through the above steps, the utility model replaces the traditional manual inspection method with intelligent monitoring means, effectively improves the accuracy, reduces the welding quality problems caused by insufficient solder paste due to delayed tin replacement, and improves product quality and consistency.

[0038] The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of those skilled in the art without departing from the purpose of the present invention.

Claims

1. A device for automatically identifying the amount of solder paste remaining in a syringe based on an inductive sensor, characterized in that: The invention comprises a soldering device (1) and a barrel fixing member (2), and also comprises: A syringe (3), the syringe (3) is used to place solder paste, and the syringe (3) is arranged on the inner side of the cylinder fixing member (2); A solder paste position component (4), wherein the solder paste position component (4) is arranged inside the syringe (3), the solder paste position component (4) moves synchronously with the highest position of the solder paste, and the solder paste position component (4) falls as the solder paste is consumed; A sensing component (5), wherein the sensing component (5) is fitted with a solder paste position component (4); A sensor (6), wherein the sensor (6) is arranged on the outside of the syringe (3), and the sensor (6) is used to sense the position of the sensing component (5); An alarm device, when the sensor (6) senses the sensing component (5), the alarm device will sound an alarm; The sensor (6) is connected to the industrial control system, and the alarm is connected to the industrial control system.

2. According to claim 1, a device for automatically identifying the amount of solder paste remaining in a syringe based on an inductive sensor is characterized in that: The solder paste positioning component (4) is a piston.

3. The device for automatically identifying the amount of solder paste in a syringe based on an inductive sensor according to claim 1 is characterized in that: The inductive component (5) is an iron disc, and the sensor (6) is an inductive sensor (6).

4. The device for automatically identifying the amount of solder paste remaining in a syringe based on an inductive sensor according to claim 1 is characterized in that: It also includes a sensor fixing member (7), and the sensor (6) is fixed on one side of the barrel fixing member (2) through the sensor fixing member (7).

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