Multi-substrate package assembly
First Claim
1. A spectrally tunable detector assembly for receiving incoming light along an optical axis, comprising:
- a first substrate having a number of bond pads and a tunable bandpass filter;
a second substrate having a number of bond pads and a detector;
a package having a cavity and a number of external terminals; and
the first substrate and the second substrate both mounted in the cavity of the package along the optical axis with the first substrate positioned upstream of the second substrate, with selected bond pads of the first substrate and/or selected bond pads of the second substrate electrically connected to selected terminals of the package;
wherein the tunable bandpass filter is provided on or adjacent to a first side of the first substrate, and the detector is provided on or adjacent a first side of the second substrate, wherein the first side of the first substrate faces away from the first side of the second substrate along the optical axis when the first substrate and the second substrate are mounted in the cavity of the package.
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Abstract
A multi-substrate package assembly having a first substrate, a second substrate and a package, each with a number of bond pads. The package includes a cavity for receiving either or both of the first and second substrates, with a number of bond pads positioned along at least part of the periphery of the cavity. The first substrate and the second substrate are preferably positioned in the cavity of the package, with selected bond pads of the first substrate and second substrate electrically connected to selected bond pads of the package. In some embodiments, the bond pads of the first substrate are only connected to bond pads on one or more sides of the cavity, and the bond pads of the second substrate are only connected to bond pads on one or more of the remaining sides of the cavity. The packaging assembly of the present invention can be used in many applications, including spectrally tunable optical detectors.
99 Citations
19 Claims
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1. A spectrally tunable detector assembly for receiving incoming light along an optical axis, comprising:
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a first substrate having a number of bond pads and a tunable bandpass filter; a second substrate having a number of bond pads and a detector; a package having a cavity and a number of external terminals; and the first substrate and the second substrate both mounted in the cavity of the package along the optical axis with the first substrate positioned upstream of the second substrate, with selected bond pads of the first substrate and/or selected bond pads of the second substrate electrically connected to selected terminals of the package; wherein the tunable bandpass filter is provided on or adjacent to a first side of the first substrate, and the detector is provided on or adjacent a first side of the second substrate, wherein the first side of the first substrate faces away from the first side of the second substrate along the optical axis when the first substrate and the second substrate are mounted in the cavity of the package. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A spectrally tunable detector assembly for receiving incoming light along an optical axis, comprising:
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a first substrate having a number of bond pads and further having a tunable bandpass filter; a second substrate having a number of bond pads and further having a detector; a third substrate having a number of bond pads and further having a readout support circuit; a package having a cavity and a number of external terminals; the first substrate, the second substrate and the third substrate all mounted in the cavity of the package, with selected bond pads of the first substrate, the second substrate and/or the third substrate electrically connected to selected terminals of the package; and wherein at least the first substrate and the second substrate are mounted along the optical axis with the first substrate positioned upstream of the second substrate. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19)
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Specification