Title :
Low Alpha-Particle-Emitting Ceramics: What´s the Lower Limit?
Author :
Woolley, James A. ; Lamar, Lawrence E. ; Stradley, Norman H. ; Harshbarger, D. Max
Author_Institution :
3Mcompany,St.Paul, MN
fDate :
12/1/1979 12:00:00 AM
Abstract :
Typical semiconductor, ceramic packaging materials, and typical commercial raw materials used in formulating ceramic packaging materials were analyzed for alpha-particle-emission characteristics and for trace uranium and thorium contents. Results indicate the possibilities of achieving low alpha-particle-emitting ceramic substrates, covers, and sealants.
Keywords :
Alpha particles; Ceramic materials; Radioactive materials; Semiconductor device packaging; Uranium; Alpha particles; Aluminum; Ceramics; Glass; Neutrons; Powders; Raw materials; Sealing materials; Semiconductor device packaging; Semiconductor materials;
Journal_Title :
Components, Hybrids, and Manufacturing Technology, IEEE Transactions on
DOI :
10.1109/TCHMT.1979.1135488
