Abstract:
Provided is a composition for bonding, in particular, a composition for bonding which contains metal particles, said composition for bonding enabling the achievement of high bonding strength by bonding at a relatively low temperature and having such heat resistance that a decrease in the bonding strength does not easily occur due to decomposition, deterioration or the like of a resin component when service temperature is increased. This composition for bonding is characterized by containing inorganic particles and an organic material that contains an amine and/or a carboxylic acid and adheres to at least a part of the surface of each inorganic particle, and is also characterized in that the weight loss rate when heated from room temperature to 200°C is 33-69% and the weight loss rate when heated from 200°C to 300°C is 24-50% as determined by thermal analysis.
Abstract:
Provided is a composition for bonding, in particular, a composition for bonding which contains metal particles, said composition for bonding enabling the achievement of high bonding strength by bonding at a relatively low temperature and having such heat resistance that a decrease in the bonding strength does not easily occur due to decomposition, deterioration or the like of a resin component when service temperature is increased. This composition for bonding is characterized by containing inorganic particles and an organic material that contains an amine and/or a carboxylic acid and adheres to at least a part of the surface of each inorganic particle, and is also characterized in that the weight loss rate when heated from room temperature to 200°C is 33-69% and the weight loss rate when heated from 200°C to 300°C is 24-50% as determined by thermal analysis.
Abstract:
A device integration method and integrated device. The method includes the steps of polishing surfaces of first (10) and second (30) workpieces each to a surface roughness of about 5-10Å. The polished surfaces of the first and second workpieces are bonded together. A surface of a third workpiece (32) is polished to the surface roughness. The surface of the third workpiece is bonded to the joined first and second workpieces. The first, second and third workpieces may each be a semiconductor device having a thin material formed on one surface, preferably in wafer form. The thin materials are polished to the desired surface roughness and then bonded together. The thin materials may each have a thickness of approximately 1-10 times the surface non-planarity of the material on which they are formed. Any number of devices may be bonded together, and the devices may be different types of devices or different technologies.
Abstract:
The invention relates to a method for assembling a first substrate (1) and a second substrate (3) via metal adhesion layers (2, 4), said method comprising the steps of: depositing, on the surface of each of the first and second substrates (1, 3), a metal layer (2, 4) with a thickness controlled such as to limit the surface roughness of each of the deposited metal layers to below a roughness threshold; exposing the metal layers deposited on the surface of the first and second substrates to the air; directly adhering the first and second substrates by placing the deposited metal adhesion layers in contact, the surface roughness of the contacted layers being that obtained at the end of the depositing step. The adhesion can be carried out in the air, at atmospheric pressure and at room temperature, without applying pressure to the assembly of the first and second substrates resulting from directly contacting the deposited metal adhesion layers.
Abstract:
A device integration method and integrated device. The method includes the steps of polishing surfaces of first (10) and second (30) workpieces each to a surface roughness of about 5-10Å. The polished surfaces of the first and second workpieces are bonded together. A surface of a third workpiece (32) is polished to the surface roughness. The surface of the third workpiece is bonded to the joined first and second workpieces. The first, second and third workpieces may each be a semiconductor device having a thin material formed on one surface, preferably in wafer form. The thin materials are polished to the desired surface roughness and then bonded together. The thin materials may each have a thickness of approximately 1-10 times the surface non-planarity of the material on which they are formed. Any number of devices may be bonded together, and the devices may be different types of devices or different technologies.