Potting material for electronic components
View Patent ↗A potting compound for electronic components comprises a first composition of asphalt and sand and a second composition that attenuates the forces normally applied by the first composition when it is used alone. The force attenuator preferably comprises solvent-refined heavy paraffinic petroleum oil from about 0.1 to 20 wt % of the compound.
1. A potting compound comprising:
a first composition which when used alone applies a given force to elements encased within it; and
a second composition which attenuates said force when subjected to thermal cycling, wherein said second composition comprises a solvent-refined paraffinic petroleum oil.
2. The potting compound of claim 1 wherein said paraffinic petroleum oil comprises about 0.1 to 20 wt % of said compound.
3. An electronic unit comprising:
a housing; p 1 at least two electronic elements contained within said housing; and
a potting compound surrounding said electronic elements on at least three sides, said potting compound comprising a first composition which when used alone applies a given force to said electronic elements; and
a second composition that attenuates said force when subjected to thermal cvcling, wherein said second composition comprises a solvent-refined paraffinic petroleum oil.
4. The electronic unit of claim 3 wherein said paraffinic petroleum oil comprises about 0.1 to 20 wt % of said compound.