Method for particle entrapment within an electrical device package
AssigneeBeckman Instruments, Inc.
InventorsWilliam H. Bardens, Gale C. Nelson
Life of this patent
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Abstract
An electrical device consisting of a package 10 comprising a base 11 and a lid 15 and an operation element 17 contained within the package. A particle getter 19 is disposed on the lid 15 for entrapping and retaining foreign particles contained within the package 10. A method for protecting the operational element 17 of such an electrical device from the particles is disclosed wherein a polysiloxane material is partially cured with less than about 9 parts of a suitable curing agent to 100 parts of polysiloxane resin to a non-flowing, particle entrapping and retaining condition and the partially cured material is secured within the package.
Claims10
A method for protecting the operational element within a package of an electrical device from objectional foreign particles within said package, said method comprising:
- (a) introducing into the interior of said package an effective amount of an organo polysiloxane material to entrap and retain foreign particles which become mobilized within said package, said organo polysiloxane material being the reaction product of an organo polysiloxane resin and an effective amount of a curing agent to partially cure said resin to a substantially non-flowing, particle entrapping and particle retaining condition;
- and
- (b) securing said organo polysiloxane material within said package.
Dependencies are inferred from the claim text.