Motorola

Year Submitted: 2003

Process: Circuit Board Etching

Industry: Electronics Manufacturing

Wastes Reduced: Process Chemicals

Substance: Sulfuric Acid

Equipment: Acid Reprocessor

Location: Austin TX

No. of employees: 4700

Contact: Lee Reznicek

Phone: (512) 928-6008

Description:

Motorola-Ed Bluestein has installed a sulfuric acid reprocessor to capture and reuse sulfuric acid. The reprocessor captures the sulfuric acid waste stream from our semiconductor fabs (80% by weight), concentrates the stream through a water removal process (to 95% by weight), removes organic and metallic contaminants from the acid, and eventually produces wafer-grade acid for use back in the process.

P2 Application:

This Reprocessor was specifically designed for semiconductor manufacturing and is unlike any Reprocessor previously made It is capable of delivering sulfuric acid back to the production line at purity levels never before realized while simultaneously preventing a large volume of hazardous waste from being generated.

Environmental Benefits:

The system has already reduced the amount of sulfuric acid waste generated by 95%.

Details of Reductions

Additional Information :

Potential to save as much as $1.2 million annually over a comparable grade purchased acid.

Source: TCEQ