For workpieces that have a long cut time, such as a workpiece with a small die size and a large diameter, corrosion may occur on the bonding pad due to prolonged exposure to the cutting water. By using StayClean-F, it prevents corrosion due to the formation of an ultra-thin barrier layer on the surface of the workpiece.
When using StayClean-F
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.
When using StayClean-F
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, please contact your DISCO sales representative.
When StayClean-F is added to the cutting water, the processing results are the same as for deionized water.
|Spindle rpm||40,000 (min-1)|
|Feed speed||60 mm/s|
Using the injector developed exclusively for StayClean, stable supply is possible even at concentrations more dilute than one part per thousand.
|Solution appearance||-||Transparent colorless and light yellow liquid|
|Main ingredient||-||Nonionic surfactant + water solube polymer macromolecule|
|pH（undiluted）||pH||4.7 ± 0.5|
|Density（15℃）||g/cm3||1.04 ± 0.02|
|Residue/decomposition||mg/L||COD 32(JIS K1002-17)|
|(when diluted 1000 times)||mg/L||BOD 2.5(JIS K0102-21)|
|Recommended dilution||times||1,000 - 10,000(0.1 - 0.01%)|
|Power supply , voltage||V||AC90-230 Single Phase 50/60 Hz|
|Supply water temperature||deg C||20 - 25|
|Supply water pressure||MPa||0.2 - 0.5|
|Process flow rate||L/min||2 - 20|
|Additive injection rate||%||0.1 - 0.01(1,000 - 100 ppm)|
|Machine dimensions(W×D×H)||mm||Injector 200 × 300 × 500 excluding projections
Bottle stocker 357 × 392 × 440 excluding projections
|Machine weight||kg||Injector Approximately.22(Dry mass)
Bottle stocker Approximately.10(Dry mass)
Cautions before using StayClean-F
Cautions regarding the use of StayClean-F
Cautions regarding StayClean-F storage