摘要:
Die Erfindung betrifft ein Verfahren zum Aufbringen einer aus einer Grundschicht und einer Schutzschicht bestehenden Bondschicht auf ein Substrat mit folgenden Verfahrensschritten: Aufbringen eines oxidierbaren Grundmaterials als Grundschicht auf eine Bondseite des Substrats, zumindest teilweises Bedecken der Grundschicht mit einem in dem Grundmaterial zumindest teilweise lösbaren Schutzmaterial als Schutzschicht. Weiterhin betrifft die Erfindung ein korrespondierendes Substrat.
摘要:
A lead-free, antimony-free solder alloy comprising: (a) from 1 to 4 wt.% silver (b) from 0.5 to 6 wt.% bismuth (c) from 3.55 to 15 wt.% indium (d) 3 wt.% or less of copper (e) optionally one or more of the following elements 0 to 1 wt.% nickel 0 to 1 wt.% of titanium 0 to 1 wt.% manganese 0 to 1 wt.% of rare earths, such as cerium 0 to 1 wt.% of chromium 0 to 1 wt.% germanium 0 to 1 wt.% of gallium 0 to 1 wt.% of cobalt 0 to 1 wt.% of iron 0 to 1 wt.% of aluminum 0 to 1 wt.% of phosphorus 0 to 1 wt.% of gold 0 to 1 wt.% of tellurium 0 to 1 wt.% of selenium 0 to 1 wt.% of calcium 0 to 1 wt.% of vanadium 0 to 1 wt.% of molybdenum 0 to 1 wt.% of platinum 0 to 1 wt.% of magnesium (f) the balance tin, together with any unavoidable impurities.
摘要:
The invention relates to a micromechanical method and a corresponding assembly for bonding semiconductor substrates and a correspondingly bonded semiconductor chip. The assembly according to the invention comprises a semiconductor substrate having a chip pattern having a plurality of semiconductor chips (1), each having a functional region (4) and an edge region (4a) surrounding the functional region (4), wherein there is a bonding frame (2) made of a bonding alloy made from at least two alloy components in the edge region (4a), spaced apart from the functional region (4). Within the part (4a2) of the edge region (4a) surrounding the bonding frame (2) between the bonding frame (2) and the functional region (4), there is at least one stop frame (7; 7a, 7b; 7b'; 70) made of at least one of the alloy components, which is designed such that when a melt of the bond alloy contacts the stop frame (7; 7a, 7b; 7b'; 70) during bonding, the bonding alloy solidifies.
摘要:
A lead-free, antimony-free solder alloy comprising: (a) from 1 to 4 wt.% silver (b) from 0.5 to 6 wt.% bismuth (c) from 3.55 to 15 wt.% indium (d) 3 wt.% or less of copper (e) optionally one or more of the following elements 0 to 1 wt.% nickel 0 to 1 wt.% of titanium 0 to 1 wt.% manganese 0 to 1 wt.% of rare earths, such as cerium 0 to 1 wt.% of chromium 0 to 1 wt.% germanium 0 to 1 wt.% of gallium 0 to 1 wt.% of cobalt 0 to 1 wt.% of iron 0 to 1 wt.% of aluminum 0 to 1 wt.% of phosphorus 0 to 1 wt.% of gold 0 to 1 wt.% of tellurium 0 to 1 wt.% of selenium 0 to 1 wt.% of calcium 0 to 1 wt.% of vanadium 0 to 1 wt.% of molybdenum 0 to 1 wt.% of platinum 0 to 1 wt.% of magnesium (f) the balance tin, together with any unavoidable impurities.
摘要:
L'invention concerne un procédé d'assemblage par adhésion moléculaire d'un premier substrat et d'un deuxième substrat selon des faces de contact, la face de contact du premier substrat présentant une couche électriquement conductrice sur au moins une partie de sa surface, le procédé comprenant les étapes suivantes : - dépôt d'une couche de liaison sur au moins une partie de la couche électriquement conductrice, ladite couche de liaison étant apte à assurer une adhésion moléculaire avec une zone de la face de contact du deuxième substrat et apte à se combiner avec la couche électriquement conductrice pour former un alliage conducteur, - mise en contact et collage par adhésion moléculaire de la couche de liaison du premier substrat avec la zone de la face de contact du deuxième substrat, - transformation, sur tout ou partie de son épaisseur, de tout ou partie de la couche électriquement conductrice avec tout ou partie de la couche de liaison et avec au moins une partie de l'épaisseur de la zone de la face de contact sur tout ou partie de la surface du deuxième substrat pour former une zone d'alliage(s) conducteur(s).
摘要:
A bonding element includes a first transient liquid phase (TLP) bonding element including a first material and a second material, the first material having a higher melting point than the second material, a ratio of a quantity of the first material and the second material in the first TLP bonding element having a first value and a second TLP bonding element including the first material and the second material, a ratio of a quantity of the first material and the second material in the second TLP bonding element having a second value different from the first value.
摘要:
A method that in one embodiment is useful in bonding a first substrate (103) to a second substrate (303) includes forming a layer including metal over the first substrate. The layer including metal in one embodiment surrounds a semiconductor device, which can be a micro electromechanical system (MEMS) device. On the second substrate (303) is formed a first layer comprising silicon (401). A second layer (403) comprising germanium and silicon is formed on the first layer. A third layer (405) comprising germanium is formed on the second layer. The third layer is brought into contact with the layer including metal. Heat (and pressure in some embodiments) is applied to the third layer and the layer including metal to form a mechanical bond material between the first substrate and the second substrate in which the mechanical bond material is electrically conductive. In the case of the mechanical bond surrounding a semiconductor device such as a MEMS, the mechanical bond can be particularly advantageous as a hermetic seal for protecting the MEMS.
摘要:
Two pieces (42, 46) are joined together by providing a gold bonding layer (44) overlying a nickel layer (40) on a first piece (42) to be bonded and providing a gold bonding layer (50) on a second piece (46) to be bonded. The gold layer (50) on the second piece (46) may optionally overlie a nickel layer (48) on the second piece (46). The gold layers (44, 50) are pressed together in a facing relation at a temperature of from about 125 DEG C to about 250 DEG C for a time sufficient to permit the layers (40, 44, 50, 46) to interdiffuse.