Zero Waste Logo The Zero Wate Network the University of Texas at Arlington Center for Environmental Excellence Environmental Training Institute Logo  

Join Us on:

Social Network Nav Bar

Lean and P2 Workshops

 

Lean and P2 Workshops

Bozeman
08/12/14 - 08/14/14

Arlington
09/23/14 - 09/25/14

New Orleans
10/22/14 - 10/24/14

Houston
11/18/14 - 11/20/14


more...

 

Environmental Management Systems Workshops

Rock Springs
08/05/14 - 08/08/14

Little Rock
10/14/14 - 10/17/14

 


more...

Case Study Database

           Add Story    |    Search Case Studies    |   

 

International Resistive Company, Inc.

Year Submitted: 2003

Process: Circuit Board Photography

Industry: Electronics Manufacturing

Wastes Reduced: Solvent

Substance: Acetone

Equipment: Automated Rinse

Location: Corpus Christi TX

No. of employees: 270

Contact: Janice Johnson

Phone: (512) 985-3129



Description:

IRC's Advanced Film Division has undertaken a project to upgrade the photolithography capabilities of its Corpus Christi operation. Batch, hand operated processes have been replaced by automatic wet process equipment that: 1)greatly reduced human contact with hazardous substances, 2) reduced total use of chemicals and water, 3) improved yields through improved process repeatability. In addition, many hazardous chemicals were also replaced with nonhazardous materials that perform comparable functions.

P2 Application:

Four processes, substrate wash, photoresist strip, photoresist develop and metal etch have been automated. Substrate wash and photoresist strip operations used acetone as the process chemical. (It has been replaced with a proprietary aqueous solution containing no hazardous materials.)

Environmental Benefits:

This process greatly reduced worker exposure to hazardous materials and reduced the amount of hazardous waste generated by 5-7 tons per year. Because the process is more efficient, de-ionized water use was reduced by 5,000 gal/month.

Details of Reductions

Additional Information :

Because the new tools have no open tanks of process chemicals, their exhaust requirements are less than half those of open benches, reducing operating cost by reducing conditioned air lost to exhaust. The total cost of the new aqueous solvent was equal to the previous solvent cost. The $326,000 project will have a payback period of approximately two years; the payback is based on projected yield improvements, reduced waste disposal costs and various other miscellaneous benefits

Source: TCEQ



SHEP Shield
Safety
Health and
Environmental
Professional



ERP Shield
Environmental
Regulatory
Professional



ESP Shield
Environmental
Science
Professional



EMP Shield
Environmental
Management
Professional

Attend a workshop and
earn credits toward a
Professional Certification

 

 



The Zero Waste Network is one of eight Pollution Prevention Resource Exchange P2RxCenters , serving as a national network of regional information centers: NEWMOA (Northeast), WRRC (Southeast), GLRPPR (Great Lakes), ZeroWasteNet (Southwest), P2RIC (Plains), Peaks to Prairies (Mountain), WSPPN (Pacific Southwest), PPRC (Northwest). We are a proud member of the National Pollution Prevention Roundtable.

National P2 Roundtable Logo