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ENCAPSULANTS

ENCAPSULANTS. COB is encapsulated in: Epoxies Polyimides Silicones. Encapsulation. chip. plastic. ENCAPSULATION PROPERTIES. Moisture permeability depends on: material (organics inferior to ceramics and metals) microcracks (e.g. around leads) fillers. This is just one

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ENCAPSULANTS

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  1. ENCAPSULANTS • COB is encapsulated in: • Epoxies • Polyimides • Silicones Encapsulation chip plastic

  2. ENCAPSULATION PROPERTIES • Moisture permeability depends on: • material (organics inferior to ceramics and metals) • microcracks (e.g. around leads) • fillers This is just one type of failure as a consequence of moisture getting to the chip Migrated gold resistive shorts due to moisture ingress

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