Osa cage with reinforced connection to pcb
AssigneeJDS Uniphase Corporation
InventorsRui ZHOU, Boping Xie
Life of this patent
Estimating the term…
Abstract
Direct pin attachment is the most compact method to connect the OSA and the PCBA, due to better performance in general and allows maximum PCBA space for more functionality. However, direct pin attachment can result in concentrated stress in the OSA-PCBA joint area, which can affect the reliability and yield of the module. To overcome the problem, an integrated transceiver cage and housing is provided including a direct pin attachment with reinforcing tabs, which are fixed to the PCBA prior to the pins to transfer any stress between the OSA and PCBA, thereby reducing the amount of stress applied to the pins.
Claims20
A cage for at least one optical subassembly comprising:
- a housing comprising a cover, and first and second sidewalls for covering a first optical subassembly (OSA);
- first and second tabs extending from the first and second sidewalls, respectively, for receiving an edge of a printed circuit board assembly (PCBA), which is electrically coupled to the first OSA;
- and
- spring clips extending from the housing for holding the first OSA in the housing.
A transceiver comprising:
- a transmitter optical subassembly (TOSA) for converting electrical signals into optical signals, and transmitting the optical signals to an optical network, the TOSA including electrical leads extending therefrom;
- a receiver optical subassembly (ROSA) for converting optical signals into electrical signals, and transmitting the electrical signals to a host device, the ROSA including electrical leads extending therefrom;
- a printed circuit board assembly (PCBA) including:
- trace leads directly fixed to the electrical leads from the TOSA and the ROSA;
- a laser driver connected to the TOSA via trace leads;
- and a post amplifier connected to the ROSA via trace leads;
- and
- a cage comprising:
- a housing including a cover, and first and second sidewalls for covering the TOSA and ROSA;
- and
- first and second tabs, extending from the first and second sidewalls adjacent to the electrical leads from the TOSA and the ROSA, respectively, fixed to an edge of the PCBA.
Dependencies are inferred from the claim text.