intelligent fluids have proven to be an effective alternative to aggressive chemical solvents such as acetone, N-methylpyrrolidone (NMP), and dimethyl sulfoxide (DMSO/ TMAH) in microelectronic cleaning processes.
Furthermore, intelligent fluids can be customized to meet the specific requirements of production systems. Parameters like etching rates and process times can be precisely adjusted to align with individual customer needs.
Photoresist stripping is a crucial step in semiconductor fabrication, where the photoresist material used during lithography is removed after it has fulfilled its purpose. This process must be thorough to ensure no residue remains, as residual photoresist can affect subsequent processing steps and the final performance of the device.
intelligent fluids’ photoresist strippers gently, quickly, and efficiently remove both positive and negative photoresists. Our solutions are suitable for use in LED, MEMS, and display manufacturing and can effectively penetrate, fragment, and lift resist layers ranging from the sub-micron scale to over 250 microns.
Metal lift-off is an essential process in fabricating
microelectronic devices, including semiconductors,
LEDs, MEMS, and displays. It involves removing excess metal layers — such as gold and aluminum — that were deposited over a patterned photoresist. This technique is often used to create metal features without the need for direct etching, which can be challenging for certain
metals and feature sizes.
Our patented technology employs gentle phase fluids designed to remove impurities effectively and delicately.
The unique structure of our fluids allows them to infiltrate and fragment even stubborn contaminants by lifting them off gently. For example, metal components are not lifted off directly. Instead, they are undercut via the underlying resist layer, which we break down, infiltrate, and lift off, thereby also lifting off the metal layer.
In semiconductor and microelectronic fabrication,
precision and cleanliness are critical, as even
microscopic contaminants can impact device performance. A proper cleaning process and swift turnaround are essential for maintaining process integrity and ensuring high-quality results.
This typically involves wet chemical cleaning, using solvents and acids, and plasma cleaning to ensure surfaces are free of organic residues and particles. intelligent fluids has developed specialized products for the gentle and effective removal of photoresists and other chemicals.
Our solutions ensure thorough cleaning while protecting the integrity of e.g., catch cups and the surrounding environment.
• Hot DI water rinse sufficient IPA rinse unnecessary
• Reduced equipment downtime & turnaround time
• Application possible at 20 – 50 °C
• Lower energy costs
• Water-based formula
• Sustainable
• Low hazardous labelling
• Improved occupational safety & better working conditions
• Replacement of aggressive solvents such as NMP, DMSO / TMAH and Acetone
• No ATEX / explosion protection required
• Longer bath lifetimes
• Low foaming formulations
• Substantial material savings
• Gentle on materials, equipment & users
• Low metal etch rates (customizable upon request)
• Longer technical-economic equipment lifespan