Title :
New military qualification testing procedures for cleaning agent alternatives to CFCs
Author :
Smiley, B. Carroll
Author_Institution :
E.I. du Pont de Nemours & Co. Inc., Wilmington, DE, USA
Abstract :
The joint industry/military/EPA (US Environmental Protection Agency) program to evaluate alternatives to CCs and CFCs (chlorocarbons and chlorofluorocarbons) for printed board assembly cleaning is described. Phase one was completed in 1989 and established three measures for determining circuit-board cleanliness; surface insulation resistance (SIR), ionic levels (for inorganics), and a novel rosin-residue extraction method (for organics). Phase two of this program is to test alternative cleaning agents and processes against the standard. The author presents results obtained from this protocol for several cleaning alternatives under consideration as replacements for CFC-based materials
Keywords :
materials testing; military systems; printed circuit manufacture; surface treatment; SIR; US Environmental Protection Agency; alternatives to CFCs; alternatives to chlorocarbons; chlorocarbons; chlorofluorocarbons; cleaning agent alternatives; inorganics; ionic levels; joint industry/military/EPA program; measures for determining circuit-board cleanliness; military qualification testing procedures; organics; printed board assembly cleaning; replacements for CFC-based materials; rosin-residue extraction method; surface insulation resistance; test methods; Assembly; Carbon capture and storage; Circuit testing; Cleaning; Defense industry; Electrical resistance measurement; Phase measurement; Protection; Qualifications; Surface resistance;
Conference_Titel :
Electronic Components and Technology Conference, 1990. ., 40th
Conference_Location :
Las Vegas, NV
DOI :
10.1109/ECTC.1990.122199
