Transient liquid phase eutectic bonding
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United States of America Patent
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Dec 8, 2009
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app pub date -
May 3, 2005
filing date -
May 3, 2005
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Abstract
A method for bonding two components together including the steps of providing a first component, providing a second component, and locating a first eutectic bonding material between the first and second component. The first eutectic bonding material includes at least one of germanium, tin, or silicon. The method further includes the step of locating a second eutectic bonding material between the first and second component and adjacent to the first eutectic bonding material. The second eutectic bonding material includes gold. The method further includes the step of heating the first and second eutectic bonding materials to a temperature above a eutectic temperature of an alloy of the first and second eutectic bonding materials to allow a hypoeutectic alloy to form out of the first and second eutectic bonding materials. The method includes the further step of cooling the hypoeutectic alloy to form a solid solution alloy bonding the first and second components together.
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