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AZ 1512 HS Photoresist - 3.785 l

AZ® 1512HS is a thin positive resist with high resolution potential for wet etching.

Product information "AZ 1512 HS Photoresist - 3.785 l"

AZ® 1512 HS

Positive Thin Resists for Wet Etching

 

General Information

The AZ® 1512 HS Photoresist belongs to the AZ® 1500 Photoresist Series of positive thin resists (g-, h- and i-line sensitive) with optimized adhesion to all common substrate materials, the main application of which is as a resist mask for wet etching.

Product Properties

AZ® 1500 Resist Family is not optimized for very steep resist sidewalls nor for high stability against thermal softening (softening temperature approx. 100°C), but for improved adhesion to all common substrate materials. The high photoinitiator concentration of the AZ® 1500 Photoresist Series compared to thick resists allows for very fast development. AZ® 1512 HS Photoresist achieves a resist film thickness of approx. 1.3 µm at 4000 rpm and is often used for chrome etching in photomask production, but is also suitable as an etching mask for other materials. AZ® 1512 HS allows a resolution in the submicrometer range under optimized process parameters. If such a high resolution is not required, a slightly thicker resist (for example AZ® 1518 Photoresist) can be useful, which reduces the risk of pinholes in the resist layer caused by particles on the substrate and the corresponding etching defects. AZ® 1512 HS Photoresist has the highest photoinitiator concentration within the AZ® 1500 Photoresist Series, is correspondingly high in contrast, and shows a particularly high development rate. Diluting the AZ® 1512 HS is not advisable, as diluted resists that are very rich in photoinitiators tend to quickly form particles. If the resist still needs to be diluted, the corresponding amounts should be used up quickly and attention should be paid to possible particle formation.

Developers

For development, we recommend either TMAH-based developers such as AZ® 326 MIF or AZ® 726 MIF, the NaOH-based AZ® 351B (typically 1:4 diluted with water), and if the selectivity requirements are not too high, the KOH-based AZ® 400K (also typically 1:4 diluted with water). For very fine resist structures, a slightly higher dilution of the developer can be helpful. On alkaline-sensitive substrate materials such as aluminum, we recommend the aluminum-compatible AZ® Developer in a 2:1 to 1:1 dilution (developer : water).

Removers

If the resist structures have not been thermally cross-linked by plasma processes, ion implantation or high temperatures (> approx. 140°C), all common removers such as AZ® 100 Remover, DMSO or many other organic solvents (e.g. acetone rinsed with isopropyl alcohol) are suitable for removing the resist layer. For cross-linked resist structures, high-performance strippers such as the NMP-free TechniStrip P1316 or AZ® 920 Remover are recommended, and in the case of alkaline-sensitive substrate materials (such as aluminum), the TechniStrip MLO 07.

Thinning/ Edge Bead Removal

Even if, as described above, further dilution of AZ® 1515 HS Photoresistis not recommended due to the accelerated particle formation, PGMEA = AZ® EBR Solvent is the recommended solvent. PGMEA is the solvent for AZ® 1512 HS anyway and is also recommended for edge wall removal if necessary.

   

Further Information

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MSDS:
Safety Data Sheet AZ® 1512 HS Photoresist english
Safety Data Sheet AZ® 1512 HS Photoresist german

TDS:
Technical Data Sheet AZ® 1512 HS Photoresist english

Application Notes:
Further Information about Photoresist Processing

Related products

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Developer

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Remover

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