Opto-electronic head for the coupling of a semi-conductor device with an optic fiber, and a method to align this semi-conductor device with this fiber
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United States of America Patent
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-
Feb 28, 1989
Grant Date -
N/A
app pub date -
Oct 16, 1987
filing date -
Oct 17, 1986
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
In an opto-electronic head, an optic fiber is coupled with a laser or a light-emitting diode. According to the invention, a plane ceramic substrate acts as a reference plane for the alignment. It is separated into two zones: one zone dedicated to the semi-conductor device and one zone dedicated to the fiber. The second zone supports a heating resistor placed between two insulating layers. A heat barrier, consisting of a slit in the substrate, reduces heat transfers towards the layer to the minimum. To align the two components, a solder preform or polymer preform is put on the resistor. When the preform melts, it forms a drop in which the fiber 4 can be moved in three directions. The invention can be applied to opto-electronic systems.
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