| 摘要 |
In an optical switching apparatus having a mirror structure bonded to a substrate, the gap between the mirror structure and the substrate is controlled by mechanical standoffs placed between the mirror structure and the substrate. The mirror structure is bonded to the substrate using solder. The mechanical standoffs are formed from a material having a higher melting point than that of the solder. The mirror structure is bonded to the substrate under pressure at a temperature between the melting point of the solder and the melting point of the mechanical standoffs.
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