Patent ID: 8571360
Filing Date: 2013-10-29
Classification: G02B,H01L

Abstract:
1. A packaging for an optocoupler, comprising: a first optical transmitter die configured to emit light; a first optical receiver die, the first optical receiver die configured to receive light emitted by the first optical transmitter die; a plurality of conductors, the first optical transmitter die and the first optical receiver die being attached to at least one of the plurality of conductors; a light guide, the light guide being a substantially transparent encapsulant encapsulating the first optical transmitter die and the first optical receiver die, the light guide configured to transfer light from the first optical transmitter die to the first optical receiver die; an attachment member; a light guide defining element attached to at least one of the plurality of conductors through the attachment member, the light guide defining element and the attachment member providing at least one cavity configured to bound the substantially transparent encapsulant, so as to define the shape of the transparent encapsulant of the light guide defining element as the transparent encapsulant is hardened from liquid form; and an opaque encapsulant encapsulating the light guide defining element and partially encapsulating the plurality of conductors, wherein the light guide defining element is formed from one of: polycarbonate, high index plastic and acrylic plastic materials.