Advanced Materials Engineering Services for the High Technology and Process Industries
MTA Inc has over 50 years of experience in failure analysis and laboratory testing, working with a broad range of industries involved in the design, fabrication and operation of equipment used in the manufacture of semiconductors and the production of pharmaceuticals, and process chemicals such as ethanol, hydrogen peroxide sulfuric and phosphoric acid.
Electropolished surfaces evaluated in accordance with SEMI F19 specifications:
Auger surface analysis and depth profiles
XPS surface analysis
Chromium oxide to iron oxide ratios
SEM surface examination at 3,500x
SEMI Standards As Referenced: F20, F37, F60, F70, F72, F73, F77
Scanning Electron Microscopy
Gold plated Pirani pressure sensor, showing corrosion by moist bromine along the exposed edges of the nickel substrate.
EDS/EDX Element Mapping
EDS element mapping shows nickel layer attacked by bromine.
Energy Dispersive X-Ray Analysis
Aluminum oxide corrosion products revealing sea water contamination of liquid natural gas pump.
Catastrophic failure of phosphoric acid storage tanks due to chloride stress corrosion cracking.
Pitting of 316L stainless steel in 6% hydrated ferric chloride. ASTM G-48 Corrosion Test.
SEMI F77(cpt), F2129
ASTM G48, G150, G61
Crack initiation and propagation in ceramic part.
Metallographic section through tungsten inert gas orbital weld in 316L gas delivery tubing.