Intelligent gold wire bonding equipment control method and system based on Internet of Things

Abstract

The invention discloses an intelligent gold wire bonding equipment control method and system based on the Internet of Things, and relates to the technical field of intelligent equipment control, and the system comprises a data collection end, an impedance analysis end, a matching calculation end and a feedback control end. The data acquisition end is used for acquiring information data in an equipment production environment in real time through an Internet of Things sensor and transmitting the acquired information data to the edge equipment; and the impedance analysis end is used for analyzing and processing the acquired information data through the information data acquired in real time and by constructing a real-time impedance spectrum analysis function of the high-frequency electric signal of the equipment bonding point. According to the method, the optimal energy output value of the ultrasonic generator is accurately calculated, it is ensured that energy output is matched with the real-time running state of equipment, adaptive frequency and amplitude parameters are dynamically generated, quality fluctuation of the gold bonding wire caused by improper energy is reduced, and bonding precision and consistency are improved.

Description

Technical Field

[0001] The present invention relates to the technical field of intelligent device control, and in particular to an intelligent gold bonding wire device control method and system based on the Internet of Things. Background Art

[0002] Intelligent gold wire bonding equipment is usually used to connect the chip to the lead frame or substrate during the chip packaging process. It is a key link in the semiconductor packaging process. In the gold wire bonding process equipment, the high-frequency vibration energy generated by the ultrasonic generator is used to quickly expand and contract the transducer under the action of the ultra-high frequency electric field to generate elastic vibration, causing the wedge-shaped cutter to vibrate accordingly.

[0003] At present, precise control of equipment is crucial in the production process of gold bonding wire. Traditional gold bonding wire equipment is not precise and sensitive enough in energy output control. Under complex changes in small deformation scenarios, it is easy to produce over-centering effect, resulting in unstable quality of gold bonding wire. At the same time, traditional equipment lacks effective response strategies for electromagnetic interference noise in the production environment, and it is difficult to adjust energy output in real time according to the interference situation, which in turn affects the bonding effect and production efficiency of the gold bonding wire.

[0004] Therefore, an intelligent bonding wire equipment control method and system based on the Internet of Things are proposed to solve the above problems. Summary of the Invention

[0005] The main purpose of the present invention is to provide an intelligent bonding wire equipment control method and system based on the Internet of Things to solve the problems raised in the above background.

[0006] To achieve the above-mentioned purpose, the technical solution adopted by the present invention is: a method and system for controlling an intelligent gold bonding wire device based on the Internet of Things, wherein the system includes a data acquisition terminal, an impedance analysis terminal, a matching calculation terminal, and a feedback control terminal;

[0007] The data acquisition terminal is used to collect information data in the equipment production environment in real time through the Internet of Things sensor, and transmit the collected information data to the edge device;

[0008] The impedance analysis terminal is used to analyze and process the collected information data by constructing a real-time impedance spectrum analysis function of the high-frequency electrical signal of the device bonding point;

[0009] The matching calculation end is used to calculate the frequency and amplitude of the optimal energy output of the ultrasonic generator in the device by analyzing the processed information data;

[0010] The feedback control end is used to collect the energy output frequency and amplitude of the ultrasonic generator in real time, and calculate the difference with the calculated optimal energy output frequency and amplitude of the ultrasonic generator, compare and determine whether there is a deviation. If they are consistent or within the allowable error range, no adjustment is made; if there is a deviation beyond the allowable error range, the energy output frequency and amplitude of the ultrasonic generator are automatically adjusted.

[0011] Furthermore, the data acquisition terminal includes an acquisition unit and a receiving unit;

[0012] The acquisition unit is used to collect information data of the device in operation in real time through current sensors, temperature sensors and piezoelectric sensors;

[0013] The receiving unit is used to pre-process and store the collected information through the edge device.

[0014] Furthermore, the impedance analysis terminal is used to calculate the voltage and current information in the frequency domain collected in real time. The calculation formula is as follows:

[0015]

[0016] Where V(w) represents the distribution of the voltage signal at different frequencies, which is a function in the frequency domain, w represents the angular frequency, which is a variable in the frequency domain; V(t) represents the voltage signal in the time domain, t represents time, j represents the imaginary unit, and dt represents a small increment of time t;

[0017] Substituting I(t) into the formula and replacing it with V(t) yields I(w). I(w) represents the distribution of the current signal at different frequencies and is a function in the frequency domain. I(t) represents the current signal in the time domain.

[0018] Furthermore, the matching calculation end includes a calculation unit, a frequency unit and an amplitude unit;

[0019] The calculation unit is used to calculate the optimal energy output of the ultrasonic generator, and the calculation steps are as follows:

[0020] S1: Calculate the complex impedance. The calculation formula is as follows:

[0021]

[0022] Where Z(t) represents the complex impedance, V(w) represents the voltage signal distribution function, and I(w) represents the current signal distribution function;

[0023] S2: Calculate the imaginary and real parts of the complex impedance, where V(w) = a + jb and I(w) = c + jd. The calculation formula is as follows:

[0024]

[0025] The real part of the complex impedance is Imaginary part of complex impedance a represents the real part of V(w), b represents the imaginary part of V(w), c represents the real part of I(w), d represents the imaginary part of I(w), and j represents the imaginary unit;

[0026] S3: Calculate the temperature gradient. The calculation formula is as follows:

[0027]

[0028] in, represents the temperature gradient, represents the partial derivative of temperature T with respect to the x direction, represents the partial derivative of temperature T with respect to the y direction, Represents the partial derivative of temperature T with respect to the z direction.

[0029] S4: Calculate the optimal energy output using the dynamic matching formula. The calculation formula is as follows:

[0030]

[0031] Where Q(t) represents the optimal energy output at time t, ∈ represents a very small positive number, Re[Z(t)] represents the real part of the complex impedance, Im[z(t)] represents the imaginary part of the complex impedance, z(t) represents the complex impedance that changes with time t, and f represents the signal frequency. Represents the temperature gradient.

[0032] Furthermore, the amplitude unit is used to calculate the optimal energy output amplitude of the ultrasonic generator, and the calculation formula is as follows:

[0033] A out (t) = A bast +βQ(t);

[0034] Among them, A out (t) represents the optimal energy output amplitude of the ultrasonic generator at time t, A bast represents the basic amplitude, β represents the amplitude adjustment coefficient, and Q(t) represents the optimal energy output at time t.

[0035] Furthermore, the frequency unit is used to calculate the optimal energy output frequency of the ultrasonic generator, and the calculation formula is as follows:

[0036]

[0037] Among them, f out(t) represents the optimal energy output frequency of the ultrasonic generator at time t, f base represents the basic frequency, a represents the frequency adjustment coefficient, and Q(t) represents the optimal energy output at time t.

[0038] Furthermore, the feedback control end includes a processing unit and a comparison unit.

[0039] Furthermore, the receiving unit is used to receive the energy output amplitude and energy output frequency collected in real time, and calculate the difference between the amplitude and frequency with the calculated optimal energy output amplitude and optimal energy output frequency respectively.

[0040] Furthermore, the comparison unit is used to compare the calculated differences;

[0041] If the frequency difference is within the error range of ±(1%-5%), no adjustment is performed; if the frequency difference is not within the error range of ±(1%-5%), the energy output frequency of the ultrasonic generator is automatically adjusted;

[0042] If the amplitude difference is within the error range of ±(5%-10%), no adjustment is performed. If the amplitude difference is not within the error range of ±(5%-10%), the energy output amplitude of the ultrasonic generator is automatically adjusted.

[0043] A method for controlling an intelligent gold bonding wire device based on the Internet of Things comprises the following steps:

[0044] Step 1: Access the data collection terminal, collect information data from the equipment production environment, and transmit it to the edge device;

[0045] Step 2: Enter the impedance analysis terminal and build a real-time impedance spectrum analysis function for the high-frequency electrical signal of the device bonding point for analysis and processing;

[0046] Step 3: Enter the matching calculation terminal, calculate the optimal energy output of the ultrasonic generator, and calculate the optimal energy output amplitude and frequency of the ultrasonic generator;

[0047] Step 4: Enter the feedback control terminal, receive the real-time collected energy output amplitude and energy output frequency, and calculate the difference between the amplitude and frequency with the calculated optimal energy output amplitude and optimal energy output frequency respectively. If the frequency or amplitude difference is within the range, no adjustment is made. If the frequency difference is not within the range, the energy output frequency or amplitude of the ultrasonic generator is automatically adjusted.

[0048] The present invention has the following beneficial effects:

[0049] 1. In the present invention, at the data acquisition end, information data from the equipment production environment collected in real time by current sensors, temperature sensors, and piezoelectric sensors is transmitted to the edge device for preprocessing and storage, providing stable data support for subsequent calculations; at the impedance analysis end, the voltage and current signals in the time domain are converted into voltage and current signals in the frequency domain through the Fourier transform formula, the voltage and current distribution in the frequency domain is analyzed, and the voltage and current signals are processed through frequency domain analysis technology to explore signal characteristics, providing an analytical basis for optimizing the energy output of the equipment and ensuring the system's precise control of the equipment's operating status.

[0050] 2. In the present invention, in the matching calculation end, the complex impedance and temperature gradient of the contact point between the electrode and the substrate in the device end are calculated, and the real and imaginary parts of the complex impedance are calculated. Thus, the complex impedance in the frequency domain is combined with the corresponding real and imaginary parts and the temperature gradient to accurately calculate the optimal energy output value of the ultrasonic generator, thereby avoiding energy waste or insufficient output, ensuring that the energy output matches the real-time operating status of the device, and dynamically generating adaptive frequency and amplitude parameters based on the optimal energy output, so that the ultrasonic generator always works with the optimal parameters under electromagnetic interference or temperature fluctuations, accurately matching the energy output parameters, reducing the quality fluctuation of the bonding wire caused by improper energy, and improving the bonding accuracy and consistency.

[0051] 3. In the present invention, in the feedback control end, the energy output frequency and amplitude of the ultrasonic generator are collected in real time through the receiving unit, and the difference between the amplitude and frequency is calculated with the calculated optimal energy output frequency. The comparison unit then judges whether to adjust the energy output frequency and amplitude of the ultrasonic generator based on the preset error range and the corresponding difference, thereby ensuring that the energy output parameters always accurately match the equipment requirements. For energy output fluctuations caused by electromagnetic interference and temperature changes in the production environment, the feedback control end can respond and adjust in real time, so that the equipment adapts to dynamic working conditions, enhances the system's anti-interference ability, and ensures continuous and reliable data collection during the bonding process. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 This is a flow chart of a method for controlling an intelligent gold bonding wire device based on the Internet of Things according to the present invention;

[0053] Figure 2 This is a flow chart of an intelligent gold bonding wire equipment control system based on the Internet of Things of the present invention. DETAILED DESCRIPTION

[0054] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0055] Implementation

[0056] See also Figure 1 and Figure 2 , the present invention provides a technical solution: a method and system for controlling an intelligent gold bonding wire device based on the Internet of Things, the system including a data acquisition terminal, an impedance analysis terminal, a matching calculation terminal and a feedback control terminal;

[0057] The data collection end is used to collect information data from the equipment production environment in real time through IoT sensors and transmit the collected information data to the edge device;

[0058] The impedance analysis terminal is used to analyze and process the collected information data by constructing a real-time impedance spectrum analysis function of the high-frequency electrical signal of the device bonding point;

[0059] The matching calculation end is used to calculate the frequency and amplitude of the optimal energy output of the ultrasonic generator in the device by analyzing the processed information data;

[0060] The feedback control end is used to collect the energy output frequency and amplitude of the ultrasonic generator in real time, and perform difference calculation with the calculated optimal energy output frequency and amplitude of the ultrasonic generator to determine whether there is a deviation. If they are consistent or within the allowable error range, no adjustment is made; if there is a deviation beyond the allowable error range, the energy output frequency and amplitude of the ultrasonic generator are automatically adjusted.

[0061] The data acquisition end includes an acquisition unit and a receiving unit;

[0062] The acquisition unit is used to collect real-time information data of the equipment during operation through current sensors, temperature sensors and piezoelectric sensors;

[0063] The receiving unit is used to pre-process and store the collected information through the edge device.

[0064] The impedance analysis terminal is used to calculate the voltage and current information in the frequency domain collected in real time. The calculation formula is as follows:

[0065]

[0066] Where V(w) represents the distribution of the voltage signal at different frequencies, which is a function in the frequency domain, w represents the angular frequency, which is a variable in the frequency domain; V(t) represents the voltage signal in the time domain, t represents time, j represents the imaginary unit, and dt represents a small increment of time t;

[0067] Substituting I(t) into the formula and replacing it with V(t) yields I(w). I(w) represents the distribution of the current signal at different frequencies and is a function in the frequency domain. I(t) represents the current signal in the time domain.

[0068] At the data acquisition end, the information data in the equipment production environment includes the comprehensive electrical signals and temperatures at the contact points between the equipment end electrodes and the substrate and in the scene. It includes both the electrical signal characteristics of the normal operation of the equipment and the signal fluctuations caused by environmental interference, such as the current signal I(t) and the voltage signal V(t). It also collects the real-time energy output amplitude and energy output frequency of the ultrasonic transmitter. Specifically, by installing the current sensor at the contact point between the electrode and the substrate at the equipment end, the current signal I(t) and voltage signal V(t) of the contact point are collected in real time, and the piezoelectric sensor is used to collect the real-time energy output amplitude and energy output frequency of the ultrasonic transmitter. The three-dimensional temperature values of the contact points between the electrodes and the substrate at the device end are collected in real time through multiple temperature sensors. The information data in the device production environment collected in real time by current sensors, temperature sensors and piezoelectric sensors are transmitted to the edge device for preprocessing and storage, providing stable data support for subsequent calculations; at the impedance analysis end, the voltage and current signals in the time domain are converted into voltage and current signals in the frequency domain through the Fourier transform formula, and the voltage and current distribution in the frequency domain is analyzed. The voltage and current signals are processed through frequency domain analysis technology, and the signal characteristics are mined to provide an analysis basis for optimizing the energy output of the equipment and ensure that the system can accurately control the operating status of the equipment.

[0069] Implementation 2

[0070] See also Figure 1 and Figure 2 , the present invention provides a technical solution: based on implementation one, the matching calculation end includes a calculation unit, a frequency unit and an amplitude unit;

[0071] The calculation unit is used to calculate the optimal energy output of the ultrasonic generator. The calculation steps are as follows:

[0072] S1: Calculate the complex impedance. The calculation formula is as follows:

[0073]

[0074] Where Z(t) represents the complex impedance, V(w) represents the voltage signal distribution function, and I(w) represents the current signal distribution function;

[0075] S2: Calculate the imaginary and real parts of the complex impedance, where V(w) = a + jb and I(w) = c + jd. The calculation formula is as follows:

[0076]

[0077] The real part of the complex impedance is Imaginary part of complex impedance a represents the real part of V(w), b represents the imaginary part of V(w), c represents the real part of I(w), d represents the imaginary part of I(w), and j represents the imaginary unit;

[0078] S3: Calculate the temperature gradient. The calculation formula is as follows:

[0079]

[0080] in, represents the temperature gradient, represents the partial derivative of temperature T with respect to the x direction, represents the partial derivative of temperature T with respect to the y direction, Represents the partial derivative of temperature T with respect to the z direction.

[0081] S4: Calculate the optimal energy output using the dynamic matching formula. The calculation formula is as follows:

[0082]

[0083] Where Q(t) represents the optimal energy output at time t, ∈ represents a very small positive number, Re[Z(t)] represents the real part of the complex impedance, Im[z(t)] represents the imaginary part of the complex impedance, z(t) represents the complex impedance that changes with time t, and f represents the signal frequency. Represents the temperature gradient.

[0084] The amplitude unit is used to calculate the optimal energy output amplitude of the ultrasonic generator. The calculation formula is as follows:

[0085] A out (t) = A bast +βQ(t);

[0086] Among them, A out (t) represents the optimal energy output amplitude of the ultrasonic generator at time t, A bast represents the basic amplitude, β represents the amplitude adjustment coefficient, and Q(t) represents the optimal energy output at time t.

[0087] The frequency unit is used to calculate the optimal energy output frequency of the ultrasonic generator. The calculation formula is as follows:

[0088]

[0089] Among them, f out (t) represents the optimal energy output frequency of the ultrasonic generator at time t, f base represents the basic frequency, a represents the frequency adjustment coefficient, and Q(t) represents the optimal energy output at time t.

[0090] At the matching calculation end, by calculating the complex impedance and temperature gradient of the contact point between the electrode and the substrate in the device end, and calculating the real and imaginary parts of the complex impedance, the optimal energy output value of the ultrasonic generator is accurately calculated by combining the complex impedance in the frequency domain with the corresponding real and imaginary parts and the temperature gradient, avoiding energy waste or insufficient output, ensuring that the energy output matches the real-time operating status of the equipment, and dynamically generating adaptive frequency and amplitude parameters based on the optimal energy output, so that the ultrasonic generator always works with the optimal parameters under electromagnetic interference or temperature fluctuations, accurately matching the energy output parameters, reducing the quality fluctuation of the bonding wire caused by improper energy, and improving the bonding accuracy and consistency.

[0091] Implementation Three

[0092] See also Figure 1 and Figure 2 The present invention provides a technical solution: based on implementation one, the feedback control end includes a processing unit and a comparison unit.

[0093] The receiving unit is used to receive the energy output amplitude and energy output frequency collected in real time, and calculate the difference between the amplitude and frequency with the calculated optimal energy output amplitude and optimal energy output frequency respectively.

[0094] The comparison unit is used to compare the calculated differences;

[0095] If the frequency difference is within the error range of ±(1%-5%), no adjustment is performed; if the frequency difference is not within the error range of ±(1%-5%), the energy output frequency of the ultrasonic generator is automatically adjusted;

[0096] If the amplitude difference is within the error range of ±(5%-10%), no adjustment is performed. If the amplitude difference is not within the error range of ±(5%-10%), the energy output amplitude of the ultrasonic generator is automatically adjusted.

[0097] Among them, the error range of frequency and amplitude has been determined through a large number of preliminary tests and actual production experience. It is determined that within this deviation range, the product quality of the bonding wire can meet production standards and usage requirements.

[0098] At the feedback control end, the energy output frequency and amplitude of the ultrasonic generator are collected in real time through the receiving unit, and the difference between the amplitude and frequency is calculated with the calculated optimal energy output frequency. The comparison unit then determines whether to adjust the energy output frequency and amplitude of the ultrasonic generator based on the preset error range and the corresponding difference, thereby ensuring that the energy output parameters always accurately match the equipment requirements. For energy output fluctuations caused by electromagnetic interference and temperature changes in the production environment, the feedback control end can respond and adjust in real time to enable the equipment to adapt to dynamic working conditions, enhance the system's anti-interference ability, and ensure the continuous and reliable bonding process.

[0099] In the present invention, an intelligent gold bonding wire equipment control system based on the Internet of Things is provided.

[0100] At the data acquisition end, information data collected in real time from the equipment production environment by current sensors, temperature sensors, and piezoelectric sensors is transmitted to edge devices for preprocessing and storage, providing stable data support for subsequent calculations.

[0101] In the impedance analysis end, the Fourier transform formula is used to convert the voltage and current signals in the time domain into voltage and current signals in the frequency domain. The voltage and current distribution in the frequency domain is analyzed. The voltage and current signals are processed using frequency domain analysis technology to explore signal characteristics. This provides an analytical basis for optimizing the energy output of the equipment and ensures that the system accurately controls the operating status of the equipment.

[0102] In the matching calculation end, by calculating the complex impedance and temperature gradient of the contact point between the electrode and the substrate in the device end, and calculating the real and imaginary parts of the complex impedance, the optimal energy output value of the ultrasonic generator is accurately calculated by combining the complex impedance in the frequency domain with the corresponding real and imaginary parts and the temperature gradient, avoiding energy waste or insufficient output, ensuring that the energy output matches the real-time operating status of the device, and dynamically generating adaptive frequency and amplitude parameters based on the optimal energy output, so that the ultrasonic generator always works with the optimal parameters under electromagnetic interference or temperature fluctuations, accurately matching the energy output parameters, reducing the quality fluctuation of the bonding wire caused by improper energy, and improving the bonding accuracy and consistency;

[0103] In the feedback control end, the energy output frequency and amplitude of the ultrasonic generator are collected in real time through the receiving unit, and the amplitude and frequency difference with the calculated optimal energy output frequency are calculated. The comparison unit then determines whether to adjust the energy output frequency and amplitude of the ultrasonic generator based on the preset error range and the corresponding difference, thereby ensuring that the energy output parameters always accurately match the equipment requirements. In response to energy output fluctuations caused by electromagnetic interference and temperature changes in the production environment, the feedback control end can respond and adjust in real time, so that the equipment can adapt to dynamic working conditions, enhance the system's anti-interference ability, and ensure a continuous and reliable bonding process in the data collection end;

[0104] A method for controlling an intelligent gold bonding wire device based on the Internet of Things comprises the following steps:

[0105] Step 1: Access the data collection terminal, collect information data from the equipment production environment, and transmit it to the edge device;

[0106] Step 2: Enter the impedance analysis terminal and build a real-time impedance spectrum analysis function for the high-frequency electrical signal of the device bonding point for analysis and processing;

[0107] Step 3: Enter the matching calculation terminal, calculate the optimal energy output of the ultrasonic generator, and calculate the optimal energy output amplitude and frequency of the ultrasonic generator;

[0108] Step 4: Enter the feedback control terminal, receive the real-time collected energy output amplitude and energy output frequency, and calculate the difference between the amplitude and frequency with the calculated optimal energy output amplitude and optimal energy output frequency respectively. If the frequency or amplitude difference is within the range, no adjustment is made. If the frequency difference is not within the range, the energy output frequency or amplitude of the ultrasonic generator is automatically adjusted.

[0109] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that includes a list of elements includes not only those elements but also other elements not explicitly listed, or elements inherent to such process, method, article, or apparatus.

[0110] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of protection claimed in the present invention is defined by the appended claims and their equivalents.

Claims

1. An intelligent gold bonding wire equipment control system based on the Internet of Things, characterized in that: The system includes a data acquisition terminal, an impedance analysis terminal, a matching calculation terminal and a feedback control terminal; The data acquisition terminal is used to collect information data in the equipment production environment in real time through the Internet of Things sensor, and transmit the collected information data to the edge device; The impedance analysis terminal is used to analyze and process the collected information data by constructing a real-time impedance spectrum analysis function of the high-frequency electrical signal of the device bonding point; The matching calculation end is used to calculate the frequency and amplitude of the optimal energy output of the ultrasonic generator in the device by analyzing the processed information data; The feedback control end is used to collect the energy output frequency and amplitude of the ultrasonic generator in real time, and calculate the difference with the calculated optimal energy output frequency and amplitude of the ultrasonic generator, compare and determine whether there is a deviation. If they are consistent or within the allowable error range, no adjustment is made; if there is a deviation beyond the allowable error range, the energy output frequency and amplitude of the ultrasonic generator are automatically adjusted.

2. The intelligent gold bonding wire equipment control system based on the Internet of Things according to claim 1 is characterized in that: The data acquisition end includes an acquisition unit and a receiving unit; The acquisition unit is used to collect information data of the device in operation in real time through current sensors, temperature sensors and piezoelectric sensors; The receiving unit is used to pre-process and store the collected information through the edge device.

3. The intelligent gold bonding wire equipment control system based on the Internet of Things according to claim 1 is characterized in that: The impedance analysis terminal is used to calculate the voltage and current information in the frequency domain collected in real time. The calculation formula is as follows: Where V(w) represents the distribution of the voltage signal at different frequencies, which is a function in the frequency domain, w represents the angular frequency, which is a variable in the frequency domain; V(t) represents the voltage signal in the time domain, t represents time, j represents the imaginary unit, and dt represents a small increment of time t; Substituting I(t) into the formula and replacing it with V(t) yields I(w). I(w) represents the distribution of the current signal at different frequencies and is a function in the frequency domain. I(t) represents the current signal in the time domain.

4. The intelligent gold bonding wire equipment control system based on the Internet of Things according to claim 1, characterized in that: The matching calculation end includes a calculation unit, a frequency unit and an amplitude unit; The calculation unit is used to calculate the optimal energy output of the ultrasonic generator, and the calculation steps are as follows: S1: Calculate the complex impedance. The calculation formula is as follows: Where Z(t) represents the complex impedance, V(w) represents the voltage signal distribution function, and I(w) represents the current signal distribution function; S2: Calculate the imaginary and real parts of the complex impedance, where V(w) = a + jb and I(w) = c + jd. The calculation formula is as follows: The real part of the complex impedance is Imaginary part of complex impedance a represents the real part of V(w), b represents the imaginary part of V(w), c represents the real part of I(w), d represents the imaginary part of I(w), and j represents the imaginary unit; S3: Calculate the temperature gradient. The calculation formula is as follows: in, represents the temperature gradient, represents the partial derivative of temperature T with respect to the x direction, represents the partial derivative of temperature T with respect to the y direction, Represents the partial derivative of temperature T with respect to the z direction. S4: Calculate the optimal energy output using the dynamic matching formula. The calculation formula is as follows: Where Q(t) represents the optimal energy output at time t, ∈ represents a very small positive number, Re[Z(t)] represents the real part of the complex impedance, Im[z(t)] represents the imaginary part of the complex impedance, z(t) represents the complex impedance that changes with time t, and f represents the signal frequency. Represents the temperature gradient.

5. The intelligent gold bonding wire equipment control system based on the Internet of Things according to claim 4, characterized in that: The amplitude unit is used to calculate the optimal energy output amplitude of the ultrasonic generator. The calculation formula is as follows: A out (t)=A bast +βQ(t); Among them, A out (t) represents the optimal energy output amplitude of the ultrasonic generator at time t, A bast represents the basic amplitude, β represents the amplitude adjustment coefficient, and Q(t) represents the optimal energy output at time t.

6. The intelligent gold bonding wire equipment control system based on the Internet of Things according to claim 4, characterized in that: The frequency unit is used to calculate the optimal energy output frequency of the ultrasonic generator. The calculation formula is as follows: Among them, f out (t) represents the optimal energy output frequency of the ultrasonic generator at time t, f base represents the basic frequency, a represents the frequency adjustment coefficient, and Q(t) represents the optimal energy output at time t.

7. The intelligent gold bonding wire equipment control system based on the Internet of Things according to claim 1, characterized in that: The feedback control end includes a processing unit and a comparison unit.

8. The intelligent gold bonding wire equipment control system based on the Internet of Things according to claim 7, characterized in that: The receiving unit is used to receive the energy output amplitude and energy output frequency collected in real time, and calculate the difference between the amplitude and frequency with the calculated optimal energy output amplitude and optimal energy output frequency respectively.

9. The intelligent gold bonding wire equipment control system based on the Internet of Things according to claim 7, characterized in that: The comparison unit is used to compare the calculated differences; If the frequency difference is within the error range of ±1% to 5%, no adjustment is performed; if the frequency difference is not within the error range of ±1% to 5%, the energy output frequency of the ultrasonic generator is automatically adjusted; If the amplitude difference is within the error range of ±5% to 10%, no adjustment is performed; if the amplitude difference is not within the error range of ±5% to 10%, the energy output amplitude of the ultrasonic generator is automatically adjusted.

10. The method for controlling an intelligent gold bonding wire device based on the Internet of Things according to claim 1, wherein: The following steps are involved: Step 1: Access the data collection terminal, collect information data from the equipment production environment, and transmit it to the edge device; Step 2: Enter the impedance analysis terminal and build a real-time impedance spectrum analysis function for the high-frequency electrical signal of the device bonding point for analysis and processing; Step 3: Enter the matching calculation end, calculate the optimal energy output of the ultrasonic generator, and calculate the optimal energy output amplitude and frequency of the ultrasonic generator; Step 4: Enter the feedback control terminal, receive the real-time collected energy output amplitude and energy output frequency, and calculate the difference between the amplitude and frequency with the calculated optimal energy output amplitude and optimal energy output frequency respectively. If the frequency or amplitude difference is within the range, no adjustment is made. If the frequency difference is not within the range, the energy output frequency or amplitude of the ultrasonic generator is automatically adjusted.

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