GB/T 44390-2024 in English

VALID

Print display—Measuring method of film uniformity

Issued on:2024-08-23
Implemented on:2025-03-01
File Format:PDF
Delivery:Via email within 5 business days

Price(USD)： $310.00
$301.00

Standard No:	GB/T 44390-2024
Document status:	VALID
Title in English:	Print display—Measuring method of film uniformity
Title in Chinese:	打印显示薄膜均匀性测试方法
Language:	English
File Format:	Electronic (PDF)
Delivery:	Via email within 5 business days
Issued on:	2024-08-23
Implemented on:	2025-03-01
Chinese Classification:	L90-Special electronic technology material
Professional Classification:	GB-National Standard
Related Keywords:	print display film thickness measurement method display technology thin film uniformity test methods film uniformity introduction interpretation
Related Topics:	Print Uniformity Test Film Density Test Method Uniformity Film Density Test Method Uniformity Calculation Method Electroplating Uniformity Test Method Film test equipment Thin film test Plating Uniformity Test Uniformity Test Thin Film Test Density Method Thin film test method Instrument Uniformity Thin film test method Thin film test method Temperature Uniformity Test Uniform seed board Material Homogeneity Testing Uniformity Test Method Self-recipe printing gold homogeneity Microfilm Thin Film Testing Equipment Uniformity English spread evenly Material Homogeneity Testing tank uniformity Film Uniformity dominant retina dominant retina Tissue uniformity Tissue uniformity How to test a monitor Detector Uniformity How to test the density of the film uniform data data uniformity Crystal uniformity Calculation of Uniformity Solution uniformity data uniformity Uniformity Calculation Method How to Test Thin Film Magnetic Properties Thin Film Tester Content Uniformity Product Uniformity leveling agent Test method for composition uniformity of GaAs wafers Incubator temperature uniformity test method Thermal printing print test Temperature Uniformity Test White uniformity test method Display uniformity display reflective film Ultra-thin vapor chamber performance test method Mechanical properties Spot uniformity test Laser Uniformity Test Homogenization method Component uniformity, repeatability Film stiffness test method Magnetic beads uniform dispersion detection method Film flexibility test Glue surface uniformity test refractive index uniformity Granule uniformity testing method Film forming test method Standard Methods for Uniformity Testing and Drying uniformity Digital mixer Uniformity coefficient determination method What are the methods for analyzing uniformity? Composition uniformity test

《GB/T 44390-2024打印显示薄膜均匀性测试方法》由TC203（全国半导体设备和材料标准化技术委员会）归口，主管部门为国家标准委。

Introduction

Interpretation of GB/T 44390—2024 National Standard of the People's Republic of China

1. Background and significance of standard formulation

With the rapid development of display technology, the uniformity of printed display films has become an important indicator for evaluating the quality of display products. This standard aims to standardize the film thickness measurement method, ensure the consistency and reliability of the test results, and provide technical support for the semiconductor equipment and materials industry.

2. Comparison of standard frameworks

Test method	Technical principle	Scope of application	Advantages and disadvantages analysis
Step meter method	Scan the surface topography with a probe to measure the change in film thickness.	Suitable for testing thin films with a thickness range of $5\mathrm{nm}\sim10^{5}\mathrm{nm}$.	Advantages:High precision and good repeatability; Disadvantages:Complex operation and requires high professional skills.
White light interferometer method	Measures the distribution of thin film thickness using the principle of optical interference.	Suitable for high-precision, large-area thin film uniformity testing.	Advantages:Non-contact, fast; Disadvantages:Sensitive to the surface state of the sample.

3. Implementation Suggestions

Case Analysis: Test Selection in Actual Application Scenarios

For small batch R&D samples, it is recommended to use the step meter method for precise measurement.
In the mass production stage, it is recommended to use the white light interferometer method to improve efficiency and coverage.
For special materials or complex structures, the two methods can be combined for joint testing.

4. Technology Evolution Analysis

From traditional contact measurement to modern optical interferometry technology, thin film uniformity test methods have undergone significant technological progress. In the future, with the development of artificial intelligence and automation technology, test equipment will be more intelligent, realizing unmanned operation and real-time quality monitoring.

More samples: NB/T 47013.2-2015 QC/T 942-2021 GB 18306-2015

Sample only — not a preview of GB/T 44390-2024

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