Disk Drive Soldering Apparatus with Sensor Feedback Control
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Solution Overview
Problem
Existing soldering devices for disk drive units face challenges in controlling the timing and energy of laser beams and nitrogen gases, leading to unstable soldering results and difficulty in maintaining the nozzle device, which affects the quality of electrical solder connections.
Innovation Solution
A controlled apparatus with a nozzle device, solder ball feeding device, gas pump, and laser device, equipped with sensors to monitor the solder ball, pressure, and distance, ensures stable laser energy and gas pressure, using a common passage for efficient delivery of solder balls, gases, and laser beams, and separate nozzle and holder structures for easy maintenance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If solder ball, nitrogen gases and laser beams are provided from three different passages that are integrative and unitary, then the nozzle device structure is complete, but it is inconvenient to clean or change the nozzle device, spending a lot of time and workload
Solution Approach 1:
The nozzle device is divided into separate modular components: a nozzle body containing the common passage, a solder ball feeding device, a gas supply device, and a laser delivery system. Each component can be independently accessed, cleaned, or replaced, resolving the maintenance difficulty while maintaining the integrated functionality through their coordinated arrangement around the common passage.
2Reliability
If laser beams and nitrogen gases are supplied to the nozzle device, then soldering can be performed, but the timing and energy of laser beams and quantity of nitrogen gases are hard to control, leading to unstable soldering results
Solution Approach 1:
The system incorporates sensors that detect the timing and energy of laser beams and the quantity of nitrogen gases supplied. This feedback information is used by a control device to adjust and stabilize the soldering parameters in real-time, ensuring consistent soldering results while simplifying operator control.
Solution Approach 2:
The invention implements precise control mechanisms that regulate laser beam energy parameters and nitrogen gas flow quantities. By dynamically adjusting these parameters based on process requirements and feedback, the system achieves stable soldering results while making operation easier through automated parameter management.
3Productivity
If a common passage is used for delivering solder balls, gases, and laser beams, then the delivery efficiency is improved, but the passages need to be carefully designed to accommodate all three elements
Solution Approach 1:
The invention combines the delivery paths for solder balls, nitrogen gases, and laser beams into a single common passage. This integration improves delivery efficiency by coordinating all elements through one optimized path, while the passage design incorporates specific geometric features and material properties to accommodate the unique requirements of each element type.
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The apparatus provides stable and controlled soldering processes, improving the quality of electrical connections in disk drive units by ensuring precise delivery of solder balls, gases, and laser energy, reducing maintenance time, and enhancing the efficiency of soldering operations.
Implementation Method 1
a laser device for emitting laser beams to the solder ball, thereby melting and reflowing the solder ball
Implementation Method 2
a gas pump device for supplying pressurized gases to the nozzle device
Data Source
AI summary
An apparatus for forming electrical solder connections in a disk drive unit includes: a nozzle device for carrying out soldering on two pre-welding surfaces; a solder ball feeding device for transferring a single solder ball to the nozzle device; a gas pump device for supplying pressurized gases to the nozzle device; a laser device for emitting laser beams to the solder ball; and a control device including at least one sensor for at least detecting status of the solder ball or pressure in the nozzle device or distance between the nozzle device and the pre-welding surfaces, and a control unit connected with the at least one sensor. The present invention can easily control the solder ball, the pressurized gases and the laser beams, thereby keeping the pressure of the nozzle device and the laser energy stable and, in turn improving the soldering result.