THE MANUFACTURING TECHNOLOGY

AvanStrate has utilized many new cutting edge technologies in the pursuit to manufacture the best quality glass. ASA has developed many innovations that are unique. Here we showcase some the technologies used in our manufacturing.

Glass substrates evolve to cater the customers demand. The dimension of the glass grew bigger on the next generation. When the glass substrates get bigger human handling and inspection becomes impossible. Therefore automations, robots and integrated systems are needed to manufacture these glasses. Below is a milestone on the growth of LCD glass substrates alongside with ASA technology and innovations.

Melting Technology of high viscosity non-alkaline glass

TFT LCD glass is required to maintain the special features such as non-alkali and no transformation. In other words, the glass is featured as very difficult to be melted. So that is why we are required to melt the glass with special technologies in comparison with other conventional glasses.

We have developed the advanced melting technology based upon electric melting and oxygen combustion methods so as to facilitate melting of these special glasses.

Forming Technology of high viscosity non-alkaline glass

TFT LCD glass is also required to be perfectly flat on the surface and to be no stress.

We have developed the special forming technology named AvanStrate style ,which requires no polishing process on the glass surface.

We have utilized high-accuracy measurement of the birefringence by optical heterodyne method to adjust the stress of the glass so as to meet the customers' rigid requirement.

LASER INSPECTION

The laser machine is a custom made machine deployed to inspect the glass substrate for defects like scratches, bubbles and foreign particles. When the laser light passes through the glass surface, any scattered light caused by the defects will be captured by the CCD. These defects signal are then being processed and displayed as data on the map. Comparing the size and the total number of defects with the standard value, the quality of the glass substrate can be determined.

GLASS SURFACE ANALYSIS (CONTACT ANGLE)

The SEM-EDX machine is a specialized microscope to analyze a defect sample. Millions of electrons are bombarded on the defect sample to determine the element composition in the sample. By comparing this results with the manufacturing material list the source of defect can be zeroed and rectified. This ability is very crucial to manufacturing.

Contact Angle measures the cleanliness of the glass substrates. A cleaned surface generally wet well to water. A modified surface with fluorinate coating repels water. Contact Angle (q) quantify the level of this wetting, and it is defined as " angle formed between the liquid and solid surfaces (angle inside the liquid) where the free surface of stasis liquid contacts with solid surface." in the dictionary of physics and chemistry. The cross sectional view is given below.