High speed serial I/O technology using an optical link
AssigneeXilinx, Inc.
InventorsBernard L. Grung, Wayne L. Walters, Steven M. Baier
Life of this patent
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Abstract
A high-speed optical transceiver for an integrated circuit (IC) includes a serializer-deserializer (SERDES) and a vertical cavity surface emitting laser (VCSEL) combined with a detector array. By covalently bonding the SERDES die to the IC, the two components can be processed simultaneously to produce a tightly aligned, high-speed data interface. The SERDES can be coupled to the VCSEL/detector array using a flex interconnect, or the VCSEL/detector array can also be covalently bonded to the IC or SERDES to maximize data bandwidth. The SERDES and VCSEL/detector array can also be produced in a single die using a process technology appropriate for both to maximize manufacturing efficiency.
Claims45
An optical transceiver for an integrated circuit (IC), wherein the IC is formed in a first die, the optical transceiver comprising:
- a serializer-deserializer (SERDES) formed in a second die, the second die being bonded onto the first die using a covalent bonding technique;
- and
- an opto-electronic converter for receiving output data from the SERDES and generating an output optical data stream and receiving an input optical data stream and providing input data to the SERDES.
A method for manufacturing an optical transceiver, the method comprising:
- covalently bonding a serializer-deserializer (SERDES) die to an integrated circuit (IC) die;
- forming a first oxide layer over the SERDES die and the IC die;
- and
- planarizing the first oxide layer to expose the SERDES die.
An integrated circuit (IC) assembly comprising:
- an IC;
- a serializer-deserializer (SERDES) for converting parallel output data from the IC into serial output data, the SERDES being covalently bonded to the IC;
- means for converting the serial output data into an output optical data stream;
- and
- means for converting an input optical data stream into serial input data for the SERDES.
Dependencies are inferred from the claim text.