HEARING INSTRUMENT HAVING A ROUTING BUILDING BLOCK FOR COMPLEX MID STRUCTURES

摘要

A hearing instrument uses an MID (Molded Interconnect Device) to replace a complexly folded and expensive flexible PCB (Printed Circuit Board) inside hearing aids and enables the use of complex MID frames in hearing instruments. An additional routing building block is provided for the very complex routing around active electronic components, e.g. chips or ASICs and small passive electronic components. It includes a small, preferably rigid mini PCB provided for the complex routing. A large Flex-PCB is therefore replaced by a combination of an MID circuit frame and a mini PCB. The mini PCB enables complex routing of conducting paths and thus helps to increase integration while the MID circuit frame provides for a mechanical structure that enables and alleviates placing and connecting components such as microphones or receivers at respective mounting positions, e.g. at openings of a hearing aid housing.

主权项

1. A hearing instrument comprising:
a housing; an MID circuit frame providing a basic mechanical structure of the hearing instrument; electronic components including active and passive components mounted on said MID circuit frame; a mini PCB mounted on said MID circuit frame, said mini PCB including more conductive layers than said MID circuit frame; and at least one active component mounted on said mini PCB.