Picking Apparatus with Differential Viscosity Surfaces
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Solution Overview
Problem
The challenge in the electronics industry is effectively handling and transferring large amounts of micro elements with decreasing volumes and weights during the production of lightweight electronic products, where existing technologies fail to optimize yield and utilization rates.
Innovation Solution
A picking apparatus with a main body and protruding picking portions, featuring distinct viscosities on its surfaces to selectively adhere and transfer micro elements, utilizing an anti-adhesion layer and elastic materials to prevent adherence during deformation, ensuring efficient transfer and utilization.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If the main body and picking portions are made with uniform high viscosity surfaces, then the picking portions can effectively adhere to micro elements, but the main body may inadvertently adhere and steal micro elements from the carrier substrate during contact
Solution Approach 1:
The patent applies local quality by creating different viscosity characteristics at different locations of the picking apparatus. The picking portions have a first viscosity optimized for adhering to micro elements, while the main body has a second viscosity (lower than the first) that prevents unwanted adhesion to micro elements during contact with the carrier substrate.
2Strength
If the picking apparatus uses high viscosity material throughout, then picking portions can securely hold micro elements, but the main body may deform and contact micro elements causing unintended adherence and transfer failure
Solution Approach 1:
The patent implements local quality by differentiating the viscosity properties between the picking portions and the main body. The picking portions use high viscosity material for strong adhesion to micro elements, while the main body uses low viscosity material to prevent unintended adhesion and maintain transfer precision during deformation.
3Ease of manufacture
If the picking apparatus is designed with simple uniform structure, then manufacturing is easier, but it cannot prevent unintended adhesion between main body and micro elements during deformation
Solution Approach 1:
The patent applies local quality by creating zones with different viscosity characteristics within the picking apparatus structure. This allows the picking portions to have high viscosity for reliable micro element pickup while the main body has low viscosity to prevent unintended adhesion, thereby improving transfer yield without significantly complicating the manufacturing process.
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 effectively increases the yield and utilization rate of micro elements by preventing adherence and facilitating their transfer from a carrier substrate to a receiving substrate, even under deformation conditions, thereby improving the efficiency of micro element handling.
Implementation Method 1
Each of the first surfaces has a first viscosity. The second surface has a second viscosity. The second viscosity is less than the first viscosity.
Implementation Method 2
The second viscosity is less than about 2 g/mm2. The first viscosity is larger than about 10 g/mm2.
Data Source
AI summary
A picking apparatus is configured to pick up a plurality of micro elements. The picking apparatus includes a main body and a plurality of picking portions. The picking portions connect with and protrude from the main body. Each of the picking portions has a first surface. The first surfaces are away from the main body and configured to pick up the micro elements. The main body has a second surface at least partially located between the picking portions. Each of the first surfaces has a first viscosity. The second surface has a second viscosity. The second viscosity is less than the first viscosity.