Pressure Application Apparatus for Bonding Alignment Correction
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Solution Overview
Problem
Existing techniques for bonding objects face challenges in maintaining positional accuracy due to shifts that occur when objects are brought into contact, particularly due to physical impact forces and changes in posture, which can result in misalignment and affect the precision of bonding processes.
Innovation Solution
A pressure application apparatus and method that includes relative movement means, measurement means for detecting positional shifts, and alignment means to correct these shifts, ensuring accurate positioning of objects before pressure is applied, using a fluidizable substance layer if necessary, to maintain precise alignment during bonding.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If two objects to be bonded are brought into contact with each other, then bonding can be achieved, but positional shift occurs due to physical impact force
Solution Approach 1:
The patent performs preliminary positioning of the two objects to be bonded before they are brought into contact with each other. By detecting horizontal positions and performing alignment in advance, the system ensures that even if positional shift occurs during contact, the objects start from an accurately positioned state, thereby maintaining bonding reliability while minimizing positioning errors
Solution Approach 2:
The patent implements a feedback mechanism by detecting the horizontal positions of the objects to be bonded, comparing them with target positions, and performing alignment adjustments based on the detected positional deviations. This closed-loop control ensures that positioning accuracy is maintained despite the impact forces generated during contact
2Manufacturing precision
If positioning is performed before contact, then alignment can be achieved, but positional shift still occurs during contact
Solution Approach 1:
The system continuously monitors the horizontal positions of the objects and performs realignment based on detected deviations. By implementing feedback control that detects positional shifts during contact and performs corrective alignment, the system maintains both alignment accuracy and positioning stability throughout the bonding process
Data Source
AI summary
A pressure application technique is provided that enables two objects to be pressurized (e.g., objects to be bonded) to be positioned with greater accuracy before having pressure applied thereto. The objects to be pressurized are moved relative to each other in a Z direction such that the objects are brought into contact with each other (step S13). Then, a horizontal positional shift ΔD between the objects to be pressurized is measured in the contact state of the objects to be pressurized (step S14). Thereafter, positioning of the objects to be pressurized is again performed by moving the objects to be pressurized relative to each other in the horizontal direction, as a result of which the positional shift ΔD is corrected (step S17).