When choosing an optical film thickness gauge, accuracy and range are often the two most confusing indicators in procurement decisions when faced with a wide range of technical parameters. Unicon Technology has been deeply involved in the field of precision thin film measurement for over a decade. Through practical experience serving industries such as semiconductors, automobiles, and aviation, it has been found that accuracy determines the reliability of measurement results, while range determines the scope of equipment application - both seem indispensable, but how should we balance them in situations where budget is limited or application scenarios are specific? This article will start from practical applications and combine with real cases of Unicon Technology in the field of hard coating measurement to analyzeOptical film thickness gaugeThe core logic in purchasing.
Taking hard coating measurement as an example, the thickness of the hard coating on the PC lampshade of car headlights is usually in the tens of micrometers range. The marginal benefits brought by the continued improvement of accuracy are limited, and whether the range can cover the complete film structure from primer to hard coating has become the core variable affecting measurement efficiency. Unicon Technology serves over 300 customers nationwide, covering cutting-edge industries such as semiconductor manufacturing, advanced packaging, and new material research and development. Its technical team always considers the matching of accuracy and range as the primary evaluation dimension for equipment selection when responding to measurement needs in different industries.
In actual production line environments, the accuracy of optical film thickness gauges also needs to be considered in combination with repeatability and stability. A device with a nominal accuracy of 0.01 μ m but poor repeatability may not be as reliable in practical use as a device with an accuracy of 0.02 μ m but highly consistent measurement results. As the general agent of Filmetrics film thickness gauge in China, Unicon Technology provides equipment with a vertical resolution of nanometer level, a minimum measurement accuracy of 0.02nm, and a minimum stability of 0.05nm. When purchasing, attention should be paid to the repeated measurement performance of the equipment on actual samples, not just theoretical accuracy values.
Taking the measurement of hard coatings and anti fog coatings as an example, typical measurement objects involve multi-layer stacked structures such as primer, hard coat, and anti fog layer, with each layer thickness distributed in the range of tens of nanometers to tens of micrometers. An optical film thickness gauge with a range of 15nm to 70 μ m precisely covers this range, without being unable to measure thicker coatings due to insufficient range or wasting resources due to excessive range. Unicon Technology is headquartered in Zhangjiang High Tech, Pudong, Shanghai, with branch offices in Dongguan, Tianjin, Chengdu, Suzhou and other places, forming a nationwide service network that can provide targeted range selection suggestions based on the industrial characteristics of customers in different regions.
From the real case of the service provided by Nikon Technology, it can be seen that an international car light manufacturer adopted this solution, and the contact probe was attached to the curved surface of the lampshade for measurement, without worrying about the problem of back reflection; The template mode detects points according to the image, greatly reducing human error and becoming the preferred solution for hard coating detection on the production line. A certain aviation transparent component manufacturer uses it for measuring the hard coating and UV resistant layer of aircraft portholes. The contact probe has stable and excellent repeatability signals on a PC curved substrate, meeting the strict standards in the aviation field. With a professional technical team and rich industry experience, Younikon Technology continues to provide customized measurement solutions for customers in different fields.
Firstly, clarify the thickness range of the measured object. If the thickness of the sample is concentrated in the nanometer to several micrometers range, accuracy should be given priority consideration; If the thickness of the sample spans from several micrometers to tens of micrometers or even wider, the coverage of the measurement range is even more critical. The pre-sales technical team of Younikon Technology can provide free sample testing services for specific samples to help customers verify equipment compatibility before procurement.
Secondly, pay attention to the impact of measurement methods on data accuracy. For coating measurements on transparent or semi transparent substrates, back reflection interference may become a more fatal source of error than accuracy and range. The contact measurement scheme is more practically valuable in certain scenarios than simply pursuing high accuracy. Younikon Technology has a core team with over 10 years of experience in the thin film measurement industry, which can recommend the most suitable measurement solutions based on the specific process characteristics of customers.
Thirdly, pay attention to the improvement of software functionality for efficiency. The equipment provided by Younikon Technology is equipped with professional measurement software, including thousands of material databases, permission settings, and historical data functions. The template mode can import sample images to customize measurement points, achieving batch detection visualization. The improvement of production line efficiency is often more practical than small differences in parameters.
Fourth, consider the convenience of the service network. Younikon Technology has branches in many parts of the country, providing 7 × 24 online services and an 8-hour rapid after-sales response mechanism, covering the full cycle of equipment installation and commissioning, operation training, maintenance, spare parts supply and other needs, ensuring that customers receive timely and reliable technical support during use.
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