The quality of wafers is extremely important for effective fabrication of electronic circuits.

Micro-Abrasive Blasting can help in two important ways:

Surface Finishing

The SWAM® Abrading System by Crystal Mark finishes the surfaces consistently with required precision.

Advantages of Micro-Abrasive Blasting:

a. Remove oxides and junctions.

b. Eliminate the backside damage for gettering, mesa diode processing as well as for backlapping.

c. Reliable cleaning.

This technology can also be used for surface finishing, surface texturing as well as surface preparation for a variety of different applications.

Wafer Coring and contouring

Crystal Mark‘s SWAM® C-5100 replaces all grinding operations with one numerical, computer controlled, micro abrasive nozzle positioning system. The micro abrasive blasting re-sizes the wafers without creating excessive heating. Also, there is minimal effect from shock to the wafer. It is designed for Cutting and Edge Rounding of silicon, silicon carbide, sapphire, Geranium, NaG, GaAs, and other III-V materials as well as for Epi Crown Removal.

Advantages of Our Technology

a. Precise work with guaranteed flat and/or notch in equivalent positions, This helps in keeping the alignment of silicon grains.

b. Smooth edges that help in preserving the wafers. Sharp edges from other methods can cause wafers to crack.

c. No crowning of wafer edges that limits effectiveness of wafer lines.

d. Protection from electrostatic discharge preserves the circuits/components built in the silicon of the wafers.

e. Achieve dimensional tolerances up to +/- .002″.

f. Complete automatino and control that simplifies the wafer assembly lines.

For questions, please call us at toll free 800-659-7926 or 818-240-7520,
or email us at sales@crystalmarkinc.com.