Temperature adjustment device and method for manufacturing temperature adjustment device

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Solution Overview

Problem

Contamination of liquids used in semiconductor manufacturing can lead to defects in the manufacturing process, particularly due to surface roughness issues in temperature adjustment devices.

Innovation Solution

A temperature adjustment device is designed with a flow path plate having a surface roughness of 0.20 μm to 0.25 μm, manufactured using injection-molding to minimize contamination by reducing foreign matter release and ensuring smooth surface contact, incorporating a thermoelectric module for precise temperature control.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Object-affected harmful factors

If the surface roughness of the flow path plate is reduced to minimize contamination, then liquid contamination is suppressed, but manufacturing precision requirements increase

Engineering Contradiction:
Improveliquid contaminationVSAvoidsurface roughness control
Core Design Contradiction:
Object-affected harmful factorsVSManufacturing precision

Solution Approach 1:

The patent specifies a quantitative parameter range for surface roughness (0.20 μm or more and 0.25 μm or less) to optimize the balance between contamination suppression and manufacturing feasibility. This parameter change transforms a qualitative requirement into a measurable, controllable specification that resolves the contradiction between minimizing contamination and maintaining manufacturing precision.

Inventive Principle:
Principle #35Parameter changes

2Manufacturing precision

If injection-molding is used to manufacture the flow path plate for smooth surfaces, then surface roughness is improved, but manufacturing complexity increases

Engineering Contradiction:
Improvesurface roughnessVSAvoidmanufacturing process
Core Design Contradiction:
Manufacturing precisionVSEase of manufacture

Solution Approach 1:

The patent replaces traditional mechanical machining methods with injection-molding technology to achieve the required surface roughness. This substitution eliminates complex post-processing steps and tooling requirements, thereby reducing manufacturing complexity while maintaining or improving surface quality.

Inventive Principle:
Principle #28Mechanics substitution (Replace mechanical system)

3Reliability

If the flow path plate surface is made smoother to prevent foreign matter release, then liquid purity is improved, but production cost increases

Engineering Contradiction:
Improveliquid purityVSAvoidproduction cost
Core Design Contradiction:
ReliabilityVSEase of manufacture

Solution Approach 1:

The patent incorporates surface roughness control as a built-in feature of the injection-molding process itself, rather than requiring separate post-processing steps. By performing the surface finishing action during the primary manufacturing process, the patent achieves high liquid purity standards while avoiding additional production costs associated with secondary operations.

Inventive Principle:
Principle #10Preliminary action

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 device effectively suppresses liquid contamination, preventing manufacturing defects in semiconductor devices by ensuring a smooth and clean surface for liquid flow, thereby enhancing the reliability of the semiconductor manufacturing process.

Implementation Method 1

a thermoelectric module plate that is connected to the heat transfer plate

Methodology Applied
Scientific EffectThermoelectric effect: Peltier Effect

Data Source

PatentUS11955353B2Temperature adjustment device and method for manufacturing temperature adjustment device
Publication Date: 2024.04.09 KELK LTD
  • US11955353B2 patent drawing
  • US11955353B2 patent drawing
  • US11955353B2 patent drawing

AI summary

A temperature adjustment device includes a flow path plate that includes a flow path groove, a heat transfer plate that faces the flow path groove, and a thermoelectric module plate that is connected to the heat transfer plate. A surface roughness of the flow path plate is 0.20 μm or more and 0.25 μm or less.