Adhesive Resistant Coating Machine, Anti-adhesive Coating Machine, Vapor Phase Coating Machine, Coupling Agent Coating Machine Technical Analysis

I. Working Principle

1. Surface Modification Mechanism
   The pretreatment system, by controlling parameters such as oven temperature (100-200℃), processing time, and holding time, deposits nitrogen alkanes (HMDS, vinyl trimethoxysilane, PFTS trichloride) on the substrate surface, forming a hydrophobic protective layer. This converts hydrophilic wafers into hydrophobic ones. The process effectively increases the contact angle of the treated wafers, reduces the usage of photoresist by approximately 30%, and simultaneously enhances the adhesion strength between the resist layer and the wafer.

2. Vacuum Environment Synergy
   The equipment establishes a 133Pa low-pressure environment through a vacuum pump, combined with nitrogen displacement technology to eliminate the interference of oxygen on the chemical reaction. A three-sided heating system maintains a constant process temperature, ensuring even distribution of steam over the wafer surface for efficient chemical bonding.

Anti-adhesive Vapor Deposition Machine, Anti-adhesive Coating Machine, Vapor Phase Coating Machine, Coupling Agent Coating Machine - Core Application Value

1. Need for Process Optimization
   In semiconductor lithography processes, residual hydroxyl groups and moisture on the wafer surface can lead to adhesion failure of the photoresist, causing issues like developer penetration and floating resist. HMDS pretreatment, by modifying the surface to be hydrophobic, blocks the penetration path of the developer, thereby increasing the success rate of positive resist pattern transfer by over 40%.

2. Intelligent Operation Advantages
   Integrated with an automatic HMDS dosing system and a microcomputer temperature control module, it achieves full-process automation of vacuum extraction, nitrogen displacement, and temperature control. The one-touch operation interface supports storage of 5 sets of programs, catering to the differentiated processing needs for wafers ranging from 2 inches to 12 inches.

Three: Anti-adhesive Vapor Deposition Machine, Anti-adhesive Coating Machine, Vapor Phase Coating Machine, Coupling Agent Coating Machine, Key Technical Parameters

The equipment features a 316L stainless steel chamber, equipped with PID intelligent temperature control and a touch screen human-machine interface, ensuring semiconductor-grade process stability.