Junction coating. (Materials).Semiconductor junction coatings JC-3811 and 3812 are said to be high purity Purity: see Pearl, The. Purity See also Modesty. almond symbol of the Virgin Mary’s innocence. [O.T.: Numbers 17: 1–11; Art: Hall, 14] crystal its transparency symbolizes pureness. , 100% solids siloxane siloxane /si·lox·ane/ (si-lok´san) any of various compounds based on a substituted backbone of alternating silica and oxygen molecules; in polymeric form they are polysiloxanes, and when the side chain substituents are organic radicals, systems designed for passivation passivation the final stage in instrument manufacture, passing the finished instruments through a bath of nitric acid which removes foreign particles and promotes the formation of a protective coating of chromium oxide. and protection of semiconductor devices. JC-3811 is a one-part system with extended pot life. JC-3812 is a two-part system with lower viscosity and ambient Surrounding. For example, ambient temperature and humidity are atmospheric conditions that exist at the moment. See ambient lighting. storage requirements. Both are said to offer low metallic impurities, optical clarity and environmental protection at high temperature and through thermal cycling. (Transene, 10 Electronics Ave., Danvers, MA 01923) Circle 53 on card |
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