Abstract:
PROBLEM TO BE SOLVED: To separate two compositional materials being bonded through interatomic bond by introducing ions having energy sufficient for reaching an interface at a dose sufficient for breaking interatomic bond. SOLUTION: A compositional material 11 is silicon oxide deposited on a compositional material 12, i.e., a single crystal silicon substrate, by low pressure CVD. Energy of ions being implanted into the interface 13 through the surface 14 of a parallel layer 11 is set at 100-140keV, for example. Heat treatment process following to the ion implantation process can be carried out at 500 deg.C for 30min, for example. The implanted ions vary the interatomic bond of the compositional material on the opposite sides of the interface 13. These ions are introduced into the interface 13 at a specified dose. The dose is set at a level suitable for separating two compositional materials, e.g. 5×10 ions/cm .
Abstract:
The invention relates to a method for the direct molecular adhesion of an electronic component (6) to a polymer (4). According to the invention, the polymer (4) is covered with a bonding layer (5), for example, of silicon oxide, which eliminates the problems caused by the presence of hydrocarbons. The inventive method can be used to produce three-dimensional structures (10) without glue.
Abstract:
Process for direct bonding a first (I) and a second (II) element, each element being provided with a surface comprising copper portions (6, 106) separated by a dielectric material (4, 104), said process comprising: A) a step of polishing said surfaces so that the surfaces to be joined can be direct bonded; B) a step of selectively forming a diffusion barrier (10, 110) on the copper portions (6, 106) of the first and second elements, the surface of the second diffusion barrier of the first and second elements being flush with said surface to within less than 5 nanometres; and C) a step of bringing the two surfaces into contact with each other so that the copper portions (6, 106) of one surface at least partially cover the copper portions (106, 6) of the other surface, and so that the surfaces are direct bonded.
Abstract:
The invention relates to a method for transferring a layer (2) to be transferred onto a support, comprising: - the transfer of said layer, assembled on an initial substrate (4), onto a liquid layer (10) previously deposited on said support (12), - the release of said layer from the initial substrate (4), by chemical attack, - the evacuation of the liquid layer (10) to allow the molecular adhesion of the layer to the support (12).
Abstract:
The invention relates to a power semiconductor device made of an epitaxied semiconductor material on a stacked structure (10), comprising a semiconductor material layer (13) which is applied to a first surface of a support substrate (11) and is integral with the support substrate (11) by means of an insulating layer (12), said support substrate comprising electric conduction means between the first surface and the second surface, the applied semiconductor material layer (13) acting as an epitaxy support layer for the epitaxied semiconductor material (14, 15).Means for electric connection (16, 17) of said device are provided on the epitaxied semiconductor material and on the second surface of the support substrate, whereby an electric connection via the electrically insulating layer and electric conduction means electrically links the epitaxied semiconductor material (14, 15) to electric connection means (17) provided on the second surface of the support substrate (11).
Abstract:
A method of bonding between a first surface (1) provided with at least one copper zone (3), surrounded by a silicon oxide zone (4) and a second surface (1') comprises an operation of treating the first surface (1) with a plasma before the first surface (1) is brought into contact with the second surface (V). The plasma is generated from a gas source containing an agent for nitriding the silicon oxide and an agent for reducing the copper oxide, based on hydrogen. The gas source may comprise an N2/NH3 and/or N2/H2 gas mixture or even an N2O/H2 gas mixture or else ammonia gas, which then acts both as nitriding agent and reducing agent. The plasma obtained from this gas source then necessarily comprises nitrogen and hydrogen, thereby making it possible, in a single operation, to provide a strong bond between the first and second surfaces (1, 1').
Abstract translation:设置有由氧化硅区域(4)包围的至少一个铜区域(3)的第一表面(1)和第二表面(1')之间的接合方法包括处理第一表面(1)的操作, 在第一表面(1)与第二表面(V)接触之前具有等离子体。 基于氢气,从含有用于氮化氧化硅的试剂和用于还原氧化铜的试剂的气体源产生等离子体。 气源可以包括N 2 / NH 3和/或N 2 / H 2气体混合物或甚至N 2 O / H 2气体混合物或氨气,其然后作为氮化剂和还原剂起作用。 从该气体源获得的等离子体必然包含氮和氢,从而在单次操作中可以在第一和第二表面(1,1')之间提供强结合。
Abstract:
The invention relates to a method for transferring at least one micrometer or millimeter sized object to a reception substrate by means of a handle. The inventive method consists in fixing a polymer handle to said object in such a way that a deformable structure consisting of the superimposed handle and object is obtainable, in preparing the surface of the object face which is opposite to the handle for the adhesion thereof to the reception substrate face, in bringing said object face into contact with said reception substrate face, adhering it thereto after the deformation at least of the handle and in removing the polymer handle.
Abstract:
The invention relates to a method for the production of a composite SiCOI-type substrate comprising the following stages: provision of an initial substrate comprising an Si or SiC support (1) supporting an SiO2 layer (2) on which a thin SiC layer (3) is applied; expitaxy of the SiC (4) on the thin SiC layer (3). Epitaxy is carried out at the following temperatures: from 1450 DEG C in order to obtain 6H or 4H polytype epitaxy (4) on the thin, applied 6H or 4H polytype layer (3) respectively; if the support (1) is made of SiC, from 1350C in order to obtain 3C polytype epitaxy (4) on the thin, applied 3C polytype layer (3); if the support (1) is made of Si or SiC, from 1350 DEG C in order to obtain 6H or 4H polytype epitaxy (4) on a thin, applied 6H or 4H polytype layer (3) respectively if the support (1) is made of Si.
Abstract:
The invention concerns a method for producing a structure comprising a support substrate (20) and a layer of semiconductor material (12) on one surface of the support substrate, the method consisting in: a) forming a semiconductor layer (12) on a surface of a first substrate (10); b) forming a cleavage zone in the first substrate, delimiting a surface layer (18); c) bringing the first substrate (10), with the semiconductor material (12), on the support substrate (20); d) supplying power to cleave the first substrate along the cleavage line (16); e) eliminating said surface layer (16) to expose the semiconductor material layer (12).
Abstract:
The invention relates to a method of treating and/or transferring at least one part of an initial substrate, this method comprising: - a) the assembling of at least one initial substrate, and of a first support (6) using a layer (4) of self-assembled molecules, - b) a treatment of said initial substrate, and/or a transfer of at least one part of this initial substrate (2) to a second support (10), - c) an evacuation or an elimination of said layer (4) of self-assembled molecules in order to allow the removal of the first support (6).