The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 24, 1987
Filed:
Aug. 31, 1984
Motorola, Inc., Schaumburg, IL (US);
Abstract
A process for bonding the surfaces of two polymeric materials and an improved optocoupler manufactured therewith is provided. Optocouplers are typically manufactured with the emitter and detector devices enclosed within a coupling material such as silicone gel for providing an electrical dielectric while being transparent to light. The coupling material is enclosed within an encapsulating material that is both reflective to light, protective against mechanical forces, and opaque to ambient light. The disclosed process bonds the coupling material to the encapsulating material to eliminate creepage paths and prevent the resultant voltage breakdown between electrodes along the interface of the two materials. The coupling material is treated so that active functional groups are formed on the surface, leaving it in an activated state. The surface of the second material is placed over the treated surface of the first material so that a chemical bond is formed.