Water droplet angle measuring instrument

Product positioning
The SL200L+contact angle tester is a device designed specifically for analyzing the surface cleanliness and wettability of precision materials such as liquid crystals, wafers, semiconductors, silicon wafers, and photoresists. Based on the large mobile platform and modular design concept, this device supports automatic liquid inlet, dynamic contact angle, and interface tension testing, providing precise data support for industrial quality inspection and research and development.

Core technological advantages

1. Design of a large mobile platform：

   • Suitable for measuring cleanliness and contact angle of large-sized samples such as PCB boards, iPad displays, and touch screens.

   • Support surface wettability evaluation of precision materials such as liquid crystals, wafers, and semiconductors.

2. High precision optical system：

   • Industrial grade contour lensClear imaging ensures precise recognition of droplet contours.

   • Quartz glass soft light sourceUniform background illumination enhances image contrast.

3. Intelligent Software System (CAST) ™ 3.0）：

   • Dynamic contact angle analysisSupport forward/backward angle, roll angle, and time-dependent contact angle measurement.

   • Calculation of surface free energyAnalyze the components of dispersion force, polarity force, hydrogen bonding force, etc., and evaluate the surface properties of the material.

   • Liquid gas/liquid-liquid interfacial tension testingAccurate measurement based on Pendant Drop method.

4. Automatic liquid inlet system：

   • High precision droplet control, suitable for micro sample testing, reducing reagent consumption.

Industry pain point solutions

• Surface cleanliness testingQuickly evaluate the residual surface pollutants of materials such as liquid crystals, wafers, and semiconductors through contact angle and interfacial tension testing.

• Wettability analysis of photoresistOptimize coating uniformity and adhesion in photolithography process to improve manufacturing yield.

Application field

• LCD (Liquid Crystal Display)Evaluate the cleanliness of the screen surface and the wettability of the coating.

• semiconductor manufacturingSurface contamination detection and wettability analysis of wafers and silicon wafers.

• Photoresist research and developmentOptimize the coating performance of photoresist and improve process stability.

• Touch screen quality inspectionAssessment of surface cleanliness and coating adhesion.

technical advantage

• high-precision controlMicron level positioning accuracy, reducing mechanical vibration interference.

• modular designSupport function expansion and adapt to diverse testing needs.

• User friendlinessThe wizard style software interface combined with one click operation function reduces the threshold for use.

Service Support
Provide professional technical services and customized solutions to ensure efficient application of equipment in research and quality control.

Characteristics and advantages of SL200L series contact angle measuring instrument

Industry pain point solutions

1. Top view 3D contact angle function：

   • Used to evaluate the influence of surface structure and chemical diversity of high-precision materials such as liquid crystals, wafers, and semiconductors on wettability, solving the problem of traditional methods being unable to accurately analyze micro rough surfaces and complex chemical compositions.

2. Mechanical Platinum Plate Surface Tension Test：

   • By using high-precision mechanical platinum plate method to detect residual organic pollutants on the surface of silicon wafers and photoresists, the industry pain point of rapid screening of pollutants in the manufacturing process can be solved.

Core Technology and Configuration

1. High precision control system

• Cross linear guide rail technology：

  • Manual control accuracy of 0.01mm, software control accuracy of 0.5 μ m, ensuring stable measurement of precision samples such as wafers and semiconductors.

• 9-dimensional mechanical structure design：

  • 2XYZ+3 horizontal adjustment system, coordinating the operation of the sample stage, camera, and injection system, and adapting to large-sized display screens (such as iPad, touch screen) for testing.

• Upgrade the infusion pump system：

  • The droplet control accuracy reaches 0.02 μ L (expandable to nL level), meeting the requirements for micro coating testing of photoresist.

2. Specialized optical imaging system

• High depth industrial lens(0.35-4.5X magnification):

  • Clearly capture the microscopic droplet morphology on the surface of liquid crystals and silicon wafers, and support surface correction technology to analyze the contact angle between concave and convex surfaces.

• High speed camera system：

  • German original 87 frames per second camera (upgradable to 1000 frames per second), dynamically records the process of photoresist wetting.

• Adjustable LED cold light source：

  • Avoid droplet evaporation interference and ensure the stability of photosensitive materials (such as photoresist) testing.

3. Intelligent Analysis Software (CAST) ™ 2.0）

• Dynamic contact angle analysis：

  • Support measurement of forward/backward angle, rolling angle, and time-dependent contact angle, suitable for dynamic adsorption research of semiconductor surface pollutants.

• Surface free energy model：

  • 12 algorithms (such as Acid base method) are used to analyze dispersion force and polarity force, evaluate material surface cleanliness and coating compatibility.

• Liquid liquid interface tension test：

  • Based on the Young Laplace equation fitting, support the analysis of interface behavior between photoresist and developer.

4. Extended functionality and compatibility

• Modular sampling system：

  • Compatible with PTFE needle tubes and fine needle tubes, suitable for testing high viscosity photoresist and hydrophobic materials.

• Standardized video mode：

  • Support multi brand host upgrades, data can be exported in Excel/BMP format to meet the needs of scientific research papers and industrial reports.

• Anti static design：

  • Ionic wind technology eliminates static interference in wafer and semiconductor testing, improving measurement accuracy.

Application scenarios

• LCD display industryScreen surface cleanliness and coating wettability testing.

• semiconductor manufacturingScreening of wafer/silicon wafer contaminants and evaluation of photoresist coating uniformity.

• Touch screen quality inspectionAnalysis of surface adhesion and cleanliness.

• Photoresist research and developmentOptimize the wetting performance of the formula and improve the process yield.

technical advantage

• Precise adaptation to high-precision materialsSpecially designed for the microelectronics industry to solve the pain points of complex surface structures and difficult detection of pollutants.

• Full process automationOne click completion of image capture, calculation, and data saving, reducing human error.

• anti-interference designMulti layer horizontal adjustment system combined with anti-static technology ensuresspecialStability of testing in the environment.

Technical Specifications

The following annotations“*”The main differences between each model are as follows.

CAST^®Asha^®、ADSA^®、TrueDrop^®、RealDrop^®、TheDrop^®、MicroDrop^®、LMCA^®、Shsolon^®Solon^®Register a trademark for Shanghai Solon.

The above trademark is used for goods or services related to contact angle measuring instruments, surface tension meters, and interfacial tension meters. Infringement will be prosecuted!