Operation and Maintenance Manual Model 7AA Wafer Grinder
1 - 26 U Version 1.2 - April 18, 1996; Update 11/6/96
GERMANIUM (GE)
Germanium is used in the semiconductor industry in the form of
polished wafers.
“Germanium crystals are grown in rods up to 1-3/8 in. (3.49 cm) in
diameter for use in making transistor wafers. High-purity crystals are
used for both P and N semiconductors. They are easier to purify and
have a lower melting point than other semiconductors, specifically
silicon.”
- Electronic Materials Handbook, ASM International,Vol. 1, pp. 393.
Health Warning
Germanium is generally considered to be low in toxicity. Its NFPA
Rating for Health is 0 on a scale of 0 - 4.
Ingestion
If ingestion occurs, obtain immediate medical attention. The following
effects may result: hypothermia, listlessness, diarrhea, cyanosis, edema
hemorrhage of lungs and intestines, liver damage, kidney damage,
and/or blood effects.
Skin Contact
If skin contact occurs, remove contaminated clothing and flood skin
with large amounts of water. If irritation persists, seek medical
attention.
Eye Contact
Always wear chemical goggles or safety glasses as powder or dust may
cause irritation. If eye contact occurs, immediately flush eyes,
including under eyelids, with large amounts of water for at least 15
minutes. Call a physician for further instructions.
Inhalation
Germanium powder or dust may cause irritation. If inhalation occurs,
seek immediate medical attention. The following effects may result:
liver damage, kidney damage, and/or blood effects.
See Section 5 of the germanium MSDS for additional information.
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