Particle adhesion prevention

By using the additive agent StayClean-F, it separates particles from the workpiece surface and prevents adhesion of particles that can not be removed with the spinner wash after dicing.

 

Low environmental load/Low running cost

StayClean-F can be used in the same environment^* as normal dicing and does not include any regulated chemicals, such as substances covered under the RoHS directive or PFOS. Furthermore, since StayClean-F can be used even at diluted concentrations of one part per thousand, and in particular at one part per ten thousand to prevent corrosion, the running costs are low.
*If the cutting water is being recirculated, contact your DISCO sales representative.

Mechanism

1. [1]  The components of StayClean-F form a barrier layer on the workpiece and this prevents pad corrosion and particle adhesion.
2. [2]  The components of StayClean-F are removed in the spinner wash process.

The use of StayClean-F has no effect on the process results

When StayClean-F is added to the cutting water, the processing results are the same as for deionized water.

StayClean Injector

Using the injector developed exclusively for StayClean, stable supply is possible even at concentrations more dilute than one part per thousand.

Specifications

Cautions before using StayClean-F

• Make sure to read the SDS before using StayClean-F because it describes detailed care regarding its use.
• Do not use StayClean-F for any unintended use.

Cautions regarding the use of StayClean-F

• Take care not to touch your eyes or skin, wear appropriate protective equipment such as gloves and glasses when handling it.
• Avoid using it in conjunction with other chemical agents (in particular strong acids or strong alkalines).

Cautions regarding StayClean-F storage

• Avoid exposure to direct sunlight and store in a cool dark place. Do not place it in a freezer.
• Seal the container properly and then store it.
• With the container still sealed, the warranty period is one year from the date of manufacture.