Through substrate vias and device
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United States of America Patent
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Mar 28, 2017
Issued Date -
N/A
app pub date -
Oct 31, 2013
filing date -
Nov 1, 2012
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Abstract
Method of making through-substrate-vias in glass substrates includes providing a first substrate on which a plurality of needles protruding vertically from the substrate are made; providing a second substrate made of glass; locating the substrates adjacent each other such that the needles on the first substrate face the second substrate; applying heat to a temperature where the glass softens, by heating the glass or the needle substrate or both; applying a force such that the needles on the first substrate penetrate into the glass to provide impressions in the glass; and finally, removing the first substrate and providing material filling the impressions in the second substrate made of glass. A device includes a silicon substrate having a cavity in which a MEMS component is accommodated, and a cap wafer made of a material having a low dielectric constant, and through substrate vias of metal, is bonded to the silicon substrate.
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