EP0025647A2
Expired / Lapsed
EP
⏱️ 0.0 years remaining
Electrical device and method for particle entrapment
Assignee: Beckman Coulter Inc
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Filing: 1980-08-20
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Granted: —
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Expires: 2000-08-20
Abstract
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.
Inventors
- 👤 William Henry Bardens
- 👤 Gale Charles Nelson
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-11-03 03:31
CPC Classifications
H; H10; H10W; H10W76/00; H10W76/40; H10W76/42; H10W76/48; H10W76/10; H10W76/12; H10W76/13; H10W76/132; H10W90/00; H10W90/701; H10W90/751; H10W90/754
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
102 words
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 particle getter material to entrap and retain foreign particles which become mobilized within said package, said organo polysiloxane particle getter 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.
Claim 2
Independent Claim
102 words
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 particle getter material to entrap and retain foreign particles which become mobilized within said package, said organo polysiloxane particle getter 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.
Claim 3
Dependent Claim
44 words
The invention of claim 1 characterized by further including the steps of sealing said package and agitating said electrical device after said package is sealed and said organo polysiloxane particle getter material is secured therein, thereby to mobilize and entrap particles within said package.
Claim 4
Dependent Claim
79 words
An electrical device comprising: a) an operational element for performing an electrical function; b) package means for containing said operational element; c) an organo polysiloxane particle getter material secured within said package means for entrapping and retaining particles within said package means, said particle getter material comprising the reaction product of an organo polysiloxane resin and an effective amount of a curing agent to partially cure said organo polysiloxane material to a substantially non-flow, particle entrapping and retaining condition.
Claim 5
Dependent Claim
79 words
An electrical device comprising: a) an operational element for performing an electrical function; b) package means for containing said operational element; c) an organo polysiloxane particle getter material secured within said package means for entrapping and retaining particles within said package means, said particle getter material comprising the reaction product of an organo polysiloxane resin and an effective amount of a curing agent to partially cure said organo polysiloxane material to a substantially non-flow, particle entrapping and retaining condition.
Claim 6
Dependent Claim
26 words
The invention according to any of claims 1-3 characterized by said organo polysiloxane material being secured in said package remote from said operational element contained therein.
Claim 7
Dependent Claim
25 words
The invention according to any of claims 1-4 characterized by said organo polysiloxane material being secured within said package by in situ partial curing thereof.
Claim 8
Dependent Claim
41 words
The invention of claim 5 characterized by said in situ partial curing being carried out by subjecting said electrical device to temperatures ranging between room temperature and 150°C for sufficient time to effect the partial curing of said organo polysiloxane material.
Claim 9
Dependent Claim
22 words
The invention according to any of claims 1-3 characterized by said organo polysiloxane material being partially cured before securing within said package.
Claim 10
Dependent Claim
38 words
The invention according to any of claims 1-6 characterized by said organo polysiloxane material being selected from the group consisting of .dimethyl siloxane, diphenyl siloxane, methyl phenyl siloxane, phenyl vinyl siloxane, tetraethoxy siloxane and mix- . tures thereof.
Claim 11
Dependent Claim
34 words
The invention according to any of claims 1-6 characterized by said organo polysiloxane material containing less than about 9 parts per 100 parts of base resin of a curing agent for said polysiloxane material.
Claim 12
Dependent Claim
28 words
The invention according to any of claims 1-6 characterized by said organo polysiloxane material containing about 2 parts and about 4 parts per 100 parts of base resin.
Claim 13
Dependent Claim
18 words
The invention according to any of claims 1-9 characterized by said organo polysiloxane material comprising methyl phenyl siloxane.
Claim 14
Dependent Claim
27 words
The invention of claim 3 wherein said operation element is selected from the group consisting of semiconductors, hybrid microcircuits, relays, thin film resistors and thick film resistors.
References Cited (Backward Citations)
No citation records indexed.
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