Magnetic Transfer of Ferromagnetic Components
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Solution Overview
Problem
Existing contactless methods for transferring electronic components are imprecise and inefficient, particularly for ferromagnetic components, due to the high demands for accuracy and speed in miniaturized component placement.
Innovation Solution
A device and method utilizing a magnetic arrangement with permanent and electromagnets, controlled by a programmable unit, to precisely position and transfer ferromagnetic electronic components from a carrier to a substrate without physical contact, using a combination of sensors and actuators to ensure high precision and speed, including the use of a laser for adhesive detachment and a movable mirror arrangement to adapt the laser beam.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If contactless methods are used to transfer electronic components, then manufacturing cleanliness is improved, but placement precision deteriorates
Solution Approach 1:
The patent replaces mechanical contact-based transfer methods with a magnetic field-based contactless transfer system. The magnetic arrangement generates a magnetic force that acts on the ferromagnetic electronic component to transfer it from the carrier to the substrate without physical contact, thereby maintaining manufacturing cleanliness while achieving precise placement through magnetic field control
Solution Approach 2:
The patent utilizes the ferromagnetic properties of the electronic component by changing the magnetic field parameters (strength, distribution, and timing) to achieve precise contactless transfer. The magnetic field parameters are optimized to ensure both the contactless requirement and the placement precision are met
2Manufacturing precision
If mechanical positioning tools are used, then placement precision is improved, but transfer speed deteriorates
Solution Approach 1:
The patent replaces slow mechanical positioning tools with a magnetic field-based transfer system that can rapidly transfer components. The magnetic force can be quickly activated and deactivated, enabling high-speed transfer while maintaining precision through controlled magnetic field distribution
Solution Approach 2:
The magnetic field transfer enables continuous operation without the mechanical constraints and repositioning delays. The magnetic arrangement can continuously transfer components at high speed while maintaining precise placement through sustained magnetic field control
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 solution achieves a significant increase in precision and transfer speed, enabling high-rate, precise placement of ferromagnetic components without mechanical tools, ensuring contaminant-free manufacturing and efficient processing.
Implementation Method 1
a magnetic arrangement (8, 8*) for generating a magnetic field (9, 9*) and for exerting a magnetic force on the at least partly ferromagnetic electronic component (1)
Implementation Method 2
a laser (7, 7**) for detaching the at least one electronic component (1) from the adhesive layer (11)
Data Source
AI summary
The device and method according to the invention are used to transfer an electronic ferromagnetic component from a carrier to a substrate using a magnetic assembly. The magnetic assembly is designed and arranged to aid in the correct positioning of the at least partly ferromagnetic electronic component on the substrate. The magnetic field generated by the magnetic assembly produces a magnetic force oriented from the carrier towards the substrate, said magnetic force aiding the transfer of the component from the carrier to the substrate such that a significantly increased positioning accuracy of the component is achieved compared to a transfer without said magnetic force.