Brown and Caldwell Home Page

Brown and Caldwell engineers and scientists are technical and thought leaders in the environmental sector. Meet the people who have been advancing innovation for more than 70 years.
Author      Title/Abstract      

Wastewater Management in Semiconducting Electronic Crystal Manufacturing Facilities
Author: Joseph M. Wong
Date: 5/187
Presented at the 42nd Annual Purdue Industrial Waste Conference, May 12-14, 1987

The last 15 to 20 years have seen a rapid evolution of electronic technology. The semiconducting electronic crystals industry is growing in the United States as well as in other parts of the world. A major part of that evolution has been the development of single crystals with unique structural and electronic properties. These crystals are essential parts of most microelectronic devices. The manufacturing processes require large quantities of chemicals and water for etching and cleaning. Consequently, wastewater from these plants may require extensive treatment before discharge. Figure 1 shows the basic manufacturing processes for semiconducting electronic crystals and som e of the wastes produced. (1)

This library contains published materials for which copyrights may be owned by entities other than Brown and Caldwell, but which are stored for limited uses by BC employees. Technical papers authored by BC employees generally may be printed and shared electronically with clients and prospective clients outside BC. Technical papers cannot be sold, and technical papers shared outside BC must have proper attribution of the original sponsoring organization or conference where the paper was presented. This attribution is embedded in each technical paper file when it is loaded into this library. Published articles from magazines or trade journals which are stored in this library are FOR INTERNAL USE ONLY and SHOULD NOT be distributed to clients or others outside BC, without express permission of the copyright owner. For questions regarding copyrights associated with any document in this library, or questions regarding copyrights in general, contact the Legal Department.