Why does Flip Chip packaging require real-time monitoring of vibration abnormalities?

Flip Chip packaging flips the chip so that the bumps are directly connected to the substrate. If unexpected vibration abnormalities occur at the Flip Chip Bonder or Reflow station, chip-to-substrate bonding offset, higher defect rates, and continued processing of defective products may occur. Therefore, real-time monitoring and signal interception are required when abnormalities happen.

What problems can abnormal vibration of a cylinder driven spindle cause?

When a cylinder drives the spindle upward or downward, large vibration caused by cylinder aging, spindle failure, or mechanical abnormalities may lead to bonding offset between the chip and substrate, affecting packaging quality and yield. Therefore, sensors can be installed on the spindle to measure vibration values during each upward and downward movement.

How can vibration thresholds be used to determine whether a Flip Chip station is normal?

A sensor can first be installed on the cylinder driven spindle to measure vibration values during normal upward and downward actions. The waveform characteristics can then be converted into digital data to build a database. Users can set vibration thresholds, and when dynamic vibration values exceed the threshold, the system can immediately issue an alarm or intercept signals to prevent wafers from continuing to run.

What is the role of stage quality monitoring in a Flip Chip Bonder?

Stage quality monitoring in a Flip Chip Bonder helps confirm equipment stability during bonding between the product material and adhesive-coated components. If machine aging or mechanical failure causes abnormal vibration, chip-to-substrate bonding position may shift. Stage monitoring helps detect abnormalities early and reduce subsequent defect risks.

What are the benefits of implementing VMS-M14 in the Flip Chip process?

After implementing VMS-M14, dynamic vibration monitoring mechanisms can be established at Flip Chip Bonding and Reflow stations. When vibration values exceed preset thresholds, the system can issue real-time alarms or stop the production line to avoid larger losses. Long-term trend charts can also help users understand equipment conditions and serve as reference points for future predictive maintenance settings.

Case

Application

FAQ

Support

If a problem occurs with the chip at the site, how can we avoid greater losses?

Case｜If a problem occurs with the chip at the site, how can we avoid greater losses?

The wafer packaging process is complicated and precise. If there is abnormal vibration at a station during the process, how can we stop immediately to avoid production line losses?

Packaging monitoring

Flip Chip Technology
Also known as "flip chip packaging" or "flip chip packaging method", it is a type of chip packaging technology. Flip chip packaging technology is to grow bumps at the chip connection points, and then flip the chip over to connect the bumps directly to the substrate. When the chip passes through the flip chip bonder and reflow station, if there is an unwarning situation, the product defect rate will increase.

Therefore, the factory needs to be able to intercept the signal to avoid the subsequent problems of product yield and production line downtime.

Solution and monitoring instructions

VMS-M14 dynamic monitoring system
For unwarned shutdown Understand the machine status and monitor in real time. When a problem occurs, it can send a warning signal and stop the production line to avoid greater losses in the back end.

For intelligent vision Use trend charts and data references to plan and build predictive maintenance plans to avoid maintenance at inappropriate times.

Monitoring parts and techniques Monitor the vibration value generated by the Reflow machine when the Cylinder pushes the spindle up and down to avoid the large amplitude vibration caused by the cylinder aging or spindle failure, which causes the chip and substrate to deviate when they are bonded.

Monitor the stage quality of the flip chip loading machine to avoid large vibrations caused by machine aging or machine failure, which may cause the chip and substrate to shift in position.

Measurement status

Vibration threshold determines whether it is normal

In order to determine under what circumstances to intercept the signal, the sensor is installed on the spindle before the cylinder pushes it to measure the vibration value generated when rising and falling.

The graphic features are defined as digital data to establish a big data database, and users can set the threshold value by themselves. When the vibration value exceeds the threshold, the machine can immediately intercept the signal at the first time to prevent the subsequent wafers from continuing to operate. Due to the accumulation of data and thresholds, users can obtain trend charts from the data to understand the machine condition, and further provide a reference for predicting maintenance setting points in the future.

Push the spindle to install the sensor before the cylinder

Users can get trend charts from the data to understand the machine condition, and further provide a reference for predicting maintenance setting points in the future

Measurement Conclusion

VMS-M14 is an intelligent monitoring system designed for the Die Bonder and Reflow combined process machines in the 2.5D process.

In the Filp chip bonding section, the flip chip machine is monitored to monitor the quality of the bonding with the product material after bonding to avoid abnormal vibration caused by machine aging or machine failure.

In the Reflow section, the dynamic vibration value generated by the specific action when the locking pneumatic cylinder or electric cylinder pushes the heating plate up and down is monitored to avoid abnormal vibration caused by aging or failure of the mechanism, which causes the material product to shift when bonding.

When the monitored dynamic vibration value exceeds the preset threshold, the machine can immediately issue an alarm. In addition, users can understand the machine condition based on the trend chart, and further provide a reference for the set point for future predictive maintenance.

VMS-M14 Dynamic Monitoring System

VMS-M14

Avoid deviation of materials and products during bonding due to abnormal vibration caused by aging or failure of the mechanism.

FAQ

Why does Flip Chip packaging need real-time monitoring of abnormal vibration?
Flip Chip packaging flips the die to connect the bumps directly to the substrate. If unexpected vibration anomalies occur at Flip Chip Bonder or Reflow stations, it may cause die-to-substrate bonding offset, increase product defect rates, or even lead to subsequent processes continuously machining defective products. Therefore, real-time monitoring is required to intercept signals when anomalies occur.

Which stations can the VMS-M14 dynamic monitoring system monitor?
VMS-M14 can be applied to Die Bonder and Reflow combined process machines in 2.5D manufacturing. In the Flip Chip Bonding section, it can monitor the Stage quality of the flip chip bonder machine; in the Reflow section, it can monitor the dynamic vibration values generated when the pneumatic cylinder or electric actuator pushes the heating plate up and down.

What problems can abnormal vibration of the Cylinder-driven shaft cause?
When the Cylinder drives the shaft up or down, if cylinder aging, shaft failure, or mechanism anomalies cause large vibrations, it may lead to misalignment during chip-to-substrate bonding, thereby affecting packaging quality and yield. Therefore, sensors can be installed on the shaft to measure the vibration values of each upward and downward movement.

How to use vibration thresholds to determine if the Flip Chip station is normal?
Sensors can first be installed on the Cylinder-driven shaft to measure the vibration values of normal upward and downward movements, and convert the waveform features into digital data to establish a big data database. Users can set their own vibration thresholds. When the dynamic vibration value exceeds the threshold, the system can immediately issue an alarm or intercept the signal, preventing subsequent wafers from continuing operation.

What is the role of Stage quality monitoring for the Flip Chip Bonder?
Stage quality monitoring of the Flip Chip Bonder is used to verify equipment stability when bonding product materials after dispensing glue. If machine aging or component failures cause abnormal vibration, it may lead to chip-to-substrate bonding misalignment. Through Stage monitoring, anomalies can be detected early to reduce subsequent defect risks.

What are the benefits of introducing VMS-M14 to the Flip Chip process?
After introducing VMS-M14, a dynamic vibration monitoring mechanism can be established at Flip Chip Bonding and Reflow stations. When the vibration value exceeds the predetermined threshold, it provides real-time alarms or stops the production line to avoid greater losses. Long-term accumulated trend charts can also help users understand machine conditions and serve as a reference for future predictive maintenance set points.