Laser module and optical subassembly
AssigneeAmkor Technology, Inc.
InventorsJonathon Greenwood, Robert Darveaux, Jicheng Yang
Life of this patent
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Abstract
A laser module includes an alignment plate having a template plate having a laser diode aperture and a photodiode aperture. A weld plate and a reflector are coupled to the template plate. The structure further includes a heat sink coupled to the alignment plate. A photodiode subassembly is mounted within the photodiode aperture and to the heat sink. Further, a laser diode subassembly is mounted within the laser diode aperture and to the heat sink. In the above manner, the photodiode subassembly, laser diode subassembly and reflected are precisely aligned.
Claims29
A structure comprising:
- an alignment plate comprising:
- a template plate comprising a laser diode aperture and a photodiode aperture;
- a weld plate coupled to said template plate;
- and
- a reflector coupled to said template plate.
A structure comprising:
- a heat sink comprising:
- a template plate;
- and
- a weld plate coupled to said template plate,
- a photodiode subassembly coupled to said template plate, said photodiode subassembly comprising a photodiode substrate comprising a pair of spaced apart parallel fingers defining a slot;
- and
- a laser diode subassembly coupled to said template plate and located within said slot.
A structure comprising:
- a template plate coupled to a weld plate, said template plate comprising:
- a main body;
- a pair of spaced apart parallel fingers extending from said main body;
- and
- a laser mounting surface contiguous with an inner side of said main body and inner sides of said pair of spaced apart parallel fingers, said inner side of said main body comprising a reflective surface.
A structure comprising:
- a template plate coupled to a weld plate, said template plate comprising:
- a main body;
- a pair of spaced apart parallel fingers extending from said main body;
- and
- a laser mounting surface contiguous with an inner side of said main body and inner sides of said pair of spaced apart parallel fingers;
- a photodiode subassembly coupled to said template plate, said photodiode subassembly comprising:
- a photodiode substrate;
- and
- a photodiode flip chip mounted to said photodiode substrate, said photodiode substrate comprising a photodiode aperture directly below and aligned with an active area of said photodiode;
- and
- a reflector coupled to said laser mounting surface, said reflector being located directly below and aligned with said photodiode aperture.
A structure comprising:
- an alignment plate comprising:
- a template plate comprising a laser diode aperture and a photodiode aperture;
- a weld plate coupled to said template plate;
- and
- a reflector coupled to said template plate;
- a photodiode subassembly mounted within said photodiode aperture;
- and
- a laser diode subassembly mounted within said laser diode aperture.
A structure comprising:
- a template plate comprising:
- a main body;
- a pair of spaced apart parallel fingers extending from said main body;
- and
- a laser mounting surface contiguous with an inner side of said main body and inner sides of said pair of spaced apart parallel fingers;
- a photodiode subassembly coupled to said template plate, said photodiode subassembly comprising a photodiode;
- a reflector coupled to said laser mounting surface, said reflector being located directly below and aligned with said photodiode;
- and
- a laser diode subassembly located within a slot defined by said inner side of said main body and said inner sides of said pair of spaced apart parallel fingers.
Dependencies are inferred from the claim text.