Solder Paste and Residue Measurement System
Patent, filed 12 Jun 1997, patented 21 Dec 1999
NAVAL AIR WARFARE CENTER AIRCRAFT DIV PATUXENT RIVER MD
Pagination or Media Count:
This invention relates to an on-line statistical process control device for solder paste and residues. The invention consists of electronics hardware software, and probing systems. The electrical hardware of the invention provides voltage and current measurements of solder paste materials, the software of the invention controls the hardware, provides real-time complex, non-linear least squares curve fitting for equivalent circuit analysis, data storage and retrieval of circuit parameters and behavior, and to statistical process control tracking and charting. The probing systems of the invention allows for 2, 3, and 4 probe surface and bulk measurements of the solder paste and residues.
- Electrical and Electronic Equipment