SMT Material Verification Workflow for Timely Tray Change Checks

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Solution Overview

Problem

In electronic product manufacturing, material verifiers and re-checking inspectors face challenges in obtaining and verifying information about loaded materials in a timely and efficient manner, leading to potential errors due to manual loading of Surface Mounted Technology (SMT) components on printed circuit boards.

Innovation Solution

A material verification method and system utilizing a computing device to automatically obtain and present information about newly loaded materials, determining verification status, and alerting users through SMS, WeChat, or emails, ensuring accurate and quick verification by presenting information only when necessary, with alarm messages for timely verification.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Adaptability or versatility

If manual loading of materials is performed by workers, then flexibility and adaptability are improved, but error rate increases and verification efficiency deteriorates

Engineering Contradiction:

ImproveflexibilityVSAvoiderror rate

Core Design Contradiction:

Adaptability or versatilityVSReliability

Solution Approach 1:

The system enables self-service by automatically obtaining material information from the production information database and performing verification without human intervention. The computing device autonomously queries, compares, and validates material data, eliminating the need for manual verification while maintaining operational flexibility.

Inventive Principle:

Principle #25Self-service

Solution Approach 2:

The patent replaces the mechanical manual verification process with an automated information processing system. Instead of workers physically checking materials, the system uses electronic data retrieval and comparison to verify material accuracy, significantly reducing errors while maintaining adaptability.

Inventive Principle:

Principle #28Mechanics substitution (Replace mechanical system)

2Adaptability or versatility

If manual verification by material verifiers and re-checking inspectors is performed, then flexibility is maintained, but verification time increases and efficiency deteriorates

Engineering Contradiction:

ImproveflexibilityVSAvoidverification time

Core Design Contradiction:

Adaptability or versatilityVSLoss of time

Solution Approach 1:

The system performs preliminary action by automatically obtaining and verifying material information as soon as materials are loaded onto the production line. The computing device proactively queries the production information database and compares material data before production proceeds, eliminating the need for time-consuming manual verification steps.

Inventive Principle:

Principle #10Preliminary action

Solution Approach 2:

The verification process operates continuously without interruption to production. The computing device automatically and continuously monitors material loading events, retrieving and verifying information in real-time, thereby maintaining flexibility while eliminating the time loss associated with manual verification interruptions.

Inventive Principle:

Principle #20Continuity of useful action

3Productivity

If automated computing device is used to obtain and verify material information, then verification efficiency and accuracy are improved, but device complexity increases

Engineering Contradiction:

Improveverification efficiencyVSAvoidsystem complexity

Core Design Contradiction:

ProductivityVSDevice complexity

Solution Approach 1:

The computing device performs multiple functions: it obtains material information from the production information database, verifies material accuracy by comparing data, sends alarm messages when discrepancies are detected, and records verification results. This multi-functionality consolidates what would otherwise require multiple separate systems into a single versatile device, improving efficiency without proportionally increasing complexity.

Inventive Principle:

Principle #6Universality (Multi-functionality)

4Productivity

If material information is not verified in time, then production flow is maintained, but error propagation increases and product quality deteriorates

Engineering Contradiction:

Improveproduction flowVSAvoidproduct quality

Core Design Contradiction:

ProductivityVSReliability

Solution Approach 1:

The system implements feedback by continuously monitoring material loading events and immediately verifying material information against the production information database. When errors are detected, the system sends alarm messages to alert operators, creating a closed-loop feedback mechanism that maintains production flow while preventing error propagation through timely detection and correction.

Inventive Principle:

Principle #23Feedback

Data Source

PatentUS11638373B2Material verification method and computing device utilizing method

Publication Date: 2023.04.25 HONGFUJIN PRECISION ELECTRONICS (ZHENGZHOU) CO LTD

AI summary

In a material verification method, information of newly loaded materials in a production line is obtained. It is determined whether the information has been verified. If the information has not been verified, it is determined whether a tray supporting the newly loaded materials has been switched from use in producing a first product to use in producing a second product. If the tray supporting the newly loaded materials is not switched to use in producing the second product, the information of the newly loaded materials is presented to a user for material verification. A system for administering such method and a device applying the method are also disclosed.