Flux Transfer Alignment Control for Uniform Component Mounting

Solution Overview

Problem

Existing flux transfer apparatuses struggle to effectively suppress transfer defects due to poor flatness and inclination of the electrode formation surface during flux deposition in electronic component mounting, particularly for larger components.

Innovation Solution

A flux transfer apparatus that includes a transfer stage, a holding tool, an image capturing part, and a detection part to assess and adjust the inclination of the holding surface relative to the transfer stage, ensuring the electrode formation surface is properly immersed in flux, with optional adjustment mechanisms to correct posture and reduce transfer defects.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If the electrode formation surface is inclined with respect to the transfer stage, then the flux transfer uniformity deteriorates, but the existing resonance apparatus cannot sufficiently suppress the transfer defect

Engineering Contradiction:

Improveflux transfer uniformityVSAvoidtransfer defect suppression capability

Core Design Contradiction:

Manufacturing precisionVSReliability

Solution Approach 1:

The patent applies preliminary action by detecting the inclination of the holding surface with respect to the transfer stage before flux transfer, and adjusting the posture to make them substantially parallel. This pre-adjustment ensures that the electrode formation surface is properly aligned with the flux surface before immersion, preventing transfer defects that would otherwise occur due to inclination.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements feedback by using an image capturing part to obtain images of the holding surface and transfer stage, a detection part to determine their relative inclination based on these images, and then adjusting the posture based on this detected information. This closed-loop feedback system continuously monitors and corrects the alignment to maintain optimal flux transfer conditions.

Inventive Principle:

Principle #23Feedback

2Manufacturing precision

If the size of the electronic component is large, then the influence of inclination on transfer defect increases, but the existing apparatus cannot effectively suppress the defect

Engineering Contradiction:

Improvetransfer defect suppressionVSAvoidelectronic component size

Core Design Contradiction:

Manufacturing precisionVSVolume of moving object

Solution Approach 1:

For large electronic components where inclination has significant influence on transfer defects, the patent applies preliminary action by detecting the inclination of the holding surface with respect to the transfer stage before flux transfer, and adjusting the posture to make them substantially parallel. This pre-adjustment is critical for large components to ensure uniform flux transfer across the entire electrode formation surface.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements feedback by using an image capturing part to obtain images of the holding surface and transfer stage, a detection part to determine their relative inclination based on these images, and then adjusting the posture based on this detected information. This closed-loop feedback system is particularly effective for large components where even small inclinations can cause significant transfer defects.

Inventive Principle:

Principle #23Feedback

3Manufacturing precision

If the holding surface is not parallel to the transfer stage, then flux transfer defect occurs, but adjusting the posture may cause displacement error

Engineering Contradiction:

Improveflux transfer qualityVSAvoidposition accuracy

Core Design Contradiction:

Manufacturing precisionVSMeasurement precision

Solution Approach 1:

The patent applies preliminary action by detecting the inclination of the holding surface with respect to the transfer stage before flux transfer, and adjusting the posture to make them substantially parallel. This pre-adjustment ensures that the electrode formation surface is properly aligned with the flux surface before immersion, preventing transfer defects that would otherwise occur due to inclination.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The patent implements feedback by using an image capturing part to obtain images of the holding surface and transfer stage, a detection part to determine their relative inclination based on these images, and then adjusting the posture based on this detected information. This closed-loop feedback system continuously monitors and corrects the alignment to maintain optimal flux transfer conditions.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS20240276695A1Flux transfer apparatus, flux transfer method, and mounting apparatus

Publication Date: 2024.08.15 SHINKAWA CO LTD

AI summary

A flux transfer apparatus (1) includes: a transfer stage (21), storing a flux; a holding tool (13), holding an electronic component (CP) by using a holding surface (13a), so that an electrode formation surface (CPA) of the electronic component (CP) is immersed into the flux stored in a transfer stage (21); an image capturing part (31), obtaining a captured image of at least one of the electrode formation surface (CPA) of the electronic component (CP) after flux transfer and the transfer stage (21) after flux transfer; and a detection part (51), detecting an inclination of the holding surface (13a) with respect to the transfer stage (21) based on the captured image.