Flexible Printed Interconnect Board Terminal Mounting Jig

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Solution Overview

Problem

The challenge in manufacturing flexible printed interconnect boards lies in accurately mounting vertically long connection terminals at a narrow pitch, which results in low productivity due to potential positional deviations during the mounting process.

Innovation Solution

A method involving a component fixing jig where connection terminals are fixed in parallel and mounted simultaneously, utilizing holes for jig fixation to adjust the component fixing jig's position, ensuring high accuracy and productivity by maintaining a constant relative relationship between comb tooth portions and holes for jig fixation.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Productivity

If connection terminals are mounted one by one, then mounting accuracy can be maintained, but productivity is low

Engineering Contradiction:

Improvemounting speedVSAvoidmounting accuracy

Core Design Contradiction:

ProductivityVSManufacturing precision

Solution Approach 1:

Multiple connection terminals are fixed in parallel to a single component fixing jig, and mounted simultaneously in one operation. This combines multiple mounting operations into a single process, achieving both high productivity through simultaneous mounting and high accuracy through the jig's parallel fixing structure that maintains constant pitch between terminals

Inventive Principle:

Principle #5Merging (Combining)

Solution Approach 2:

A component fixing jig is introduced as an intermediary device to hold multiple connection terminals in a fixed parallel arrangement. The jig acts as a mediator between the terminals and the mounting process, ensuring consistent positioning and enabling simultaneous mounting while maintaining accuracy

Inventive Principle:

Principle #24Intermediary (Mediator)

2Manufacturing precision

If connection terminals are mounted at narrow pitch, then space utilization is improved, but positional deviation occurs reducing accuracy

Engineering Contradiction:

Improvepositioning accuracyVSAvoidmounting efficiency

Core Design Contradiction:

Manufacturing precisionVSProductivity

Solution Approach 1:

Multiple connection terminals are pre-fixed in parallel to the component fixing jig before the mounting process. This preliminary arrangement ensures constant pitch and accurate positioning is established in advance, allowing narrow pitch mounting without positional deviation during the actual mounting operation

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

Multiple tightly-spaced connection terminals are fixed together on a single jig and mounted simultaneously. This merging approach maintains the narrow pitch layout while achieving high accuracy through the jig's parallel fixing mechanism, avoiding the positional deviations that would occur with individual mounting

Inventive Principle:

Principle #5Merging (Combining)

Data Source

PatentUS11245237B2Method of manufacturing flexible printed interconnect board

Publication Date: 2022.02.08 SUMITOMO ELECTRIC PRINTED CIRCUITS INC

AI summary

According to one aspect of the present invention, a method of manufacturing a flexible printed interconnect board, including an insulating base film; a conductive pattern that is layered on one surface side of the base film; and a plurality of connection terminals that are fixed to a terminal connection area on one edge side of the conductive pattern, includes: fixing the plurality of connection terminals in parallel to a component fixing jig; and mounting the plurality of fixed connection terminals together with the component fixing jig.