Protecting electronic components in acidic and basic environments
AssigneeMotorola, Inc.
InventorsAnthony J. Polak, Theresa L. Baker
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Abstract
Electronic devices protected by an organic polymeric encapsulant and placed in a corrosive environment can have added protection by dispersing in the encapsulant particles of a solid buffer which tend to neutralize the effect of the corrosive agent. This approach is quite effective when strong acids are the corrosive agents, and when solid acid-base buffers are dispersed in the polymeric material. The encapsulant may be elastomeric, and silicone elastomers containing solid acid-base buffers are quite effective in protecting the underlying electronic device from corrosion by strong acids.
Claims14
A method of inhibiting the permeation of a corrosive agent through an organic elastomeric material exposed to the corrosive agent comprising dispersing in said organic elastomeric material particles of a solid buffer in an amount from about 1 up to about 25 weight percent of said elastomeric material to neutralize the corrosive agent, where said corrosive agent is an acid or a base.
An organic elastomeric protective coating resistant to corrosive agents comprising an organic elastomeric material having a uniform dispersion of a solid buffer in an amount from about 1 up to about 25 weight percent of said elastomeric material to neutralize said corrosive agents.
Dependencies are inferred from the claim text.