摘要:
The invention relates, according to a first aspect, to a data path cell specifically adapted to its environment for use in an integrated circuit produced on a semiconductor-on-insulator substrate comprising a thin layer of semiconductor material separated from a bulk substrate by an insulating layer, the cell comprising an array of field-effect transistors, each transistor having, in the thin layer, a source region (S 7 ), a drain region (D 7 ) and a channel region (C 7 ) which is bounded by the source and drain regions, and further including a front gate control region (GA 7 ) formed above the channel region, characterized in that at least one transistor (T 7 ) has a back gate control region (GN 2 ) formed in the bulk substrate beneath the channel region, the back gate region being able to be biased so as to modify the performance characteristics of the transistor.
摘要:
The invention relates to a power junction device comprising: a SiCOI-type substrate with a silicon carbide layer (16) which is insulated from a solid support (12) by means of an insulating buried layer (14), and at least one Schottky contact between a first metallic layer (40) and the silicon carbide surface layer (16), said first metallic layer (30) forming an anode.
摘要:
Procédé de réalisation d'une hétérostructure comprenant une étape de collage (S5) d'une première plaque (110) sur une deuxième plaque (120), la première plaque (110) ayant un coefficient de dilatation thermique inférieur au coefficient de dilatation thermique de la deuxième plaque (120) et au moins une étape de recuit de renforcement de collage (S7). Le procédé est notamment caractérisé en ce qu 'il comprend, après l'étape de collage (S5) et avant l'étape de recuit de renforcement de collage (S7), au moins une étape de détourage au moins partiel (S5) de la première plaque (110).
摘要:
The invention relates, according to a first aspect, to a semiconductor device formed on a semiconductor-on-insulator substrate comprising a thin film of semiconductor material separated from a base substrate by an insulating film, the device comprising an array of patterns each formed from at least one field-effect transistor, each transistor having, in the thin film, a source region, a drain region and a channel region which is delimited by the source and drain regions, and furthermore comprising a front control gate region formed above the channel region, the patterns being arranged in the form of rows, the source and drain regions of any one row having the same dimensions and being spaced apart by front control gate regions of fixed dimensions, characterized in that at least one transistor of a pattern has a back control gate region formed in the base substrate beneath the channel region, the back gate region being capable of being biased in order to shift the threshold voltage of the transistor to simulate a modification in the channel width of the transistor or to force the transistor to remain off or on whatever the voltage applied on its front control gate.
摘要:
L'invention concerne un procédé de réalisation d'une structure comprenant une couche mince de matériau semi-conducteur sur un substrat, comportant les étapes de: - création d'une zone de fragilisation dans l'épaisseur du substrat donneur; - collage du substrat donneur avec un substrat support ; - détachement du substrat donneur au niveau de la zone de fragilisation, pour transférer une partie du substrat donneur sur le substrat support et former la couche mince sur celui-ci ; - traitement thermique de la structure obtenue après détachement pour stabiliser l'interface de collage entre la couche mince et le substrat support, réalisé de manière à éviter l'apparition de lignes de glissement dans la couche mince.
摘要:
The present invention relates to a method of fabricating a structure (1) for electronics, optics, optoelectronics or photovoltaics, the structure (1) comprising a substrate (10) and a layer (20) formed by depositing a material on one of the faces of the substrate (10), this method being characterized in that it comprises the steps of : - formation of a embrittled substrate comprising a embrittlement zone defining, on the one hand, said substrate (10) and, on the other hand, a remainder, - deposition of a layer (20,21) of said material on each one of the two faces of the embrittled substrate, - cleavage of the embrittled substrate, so as to form the structure (1) in which face (IB) of the substrate (10) is covered with the layer (20) of the material deposited while its other face (IA) is exposed.
摘要:
The invention provides a method of smoothing the outline of a useful layer (66) of material transferred to a support substrate (7), said method comprising at least one step of molecular bonding the front face (600) of a source substrate (6) to the receiving face (700) of a support substrate (7), and a step of transferring a useful layer (66) deriving from said source substrate (6) onto said support substrate (7). This method is characterized in that prior to said bonding step, at least one of the faces selected from said front face (600) and said receiving face (700) undergoes a machining operation intended to form a shoulder (61) over at least a portion of its periphery, said shoulder (61) defining an inner projecting zone (62) the top face (620) of regular outline (C" 6 ) so that after bonding, said useful layer (66) is transferred to said support substrate (7) with a regular outline. Application to the fabrication of a composite substrate for optics, electronics or optoelectronics.
摘要:
The invention relates to a method of fabricating a hybrid substrate comprising at least two layers of crystalline material that are bonded directly to each other. This method is noteworthy in that it comprises steps consisting in: implanting at least one category of atomic and/or ionic species into a donor substrate so as to form therein a weakened zone forming the boundary between an active layer and a remainder; subjecting the front faces of the donor substrate and of a receiver substrate, to a heat treatment between 900°C and 1200°C, under hydrogen and/or argon for a time of at least 30 seconds; bonding said front faces to each other; detaching said remainder; the nature, implantation dose and implantation energy of said species being chosen so that the defects induced by these species within the donor substrate allow the remainder of the donor substrate to be subsequently detached but do not develop sufficiently during said heat treatment to prevent the subsequent bonding or to deform the front face of the donor substrate.
摘要:
The invention relates to a method for fabricating a composite structure having heat dissipation properties greater than a bulk single crystal silicon structure having the same dimensions, the structure comprising a support substrate, a top layer and an oxide layer between the support substrate and the top layer, the method comprising the steps of: a) providing a top layer made of a crystalline material, b) bonding the top layer with a support substrate made of a polycrystalline material having high heat dissipation properties, such that an oxide layer is formed at the bonding interface, in order to obtain said structure, characterized in that it further comprises a heat treatment of the structure in an inert or reducing atmosphere at a predetermined temperature and a predetermined duration to increase the heat dissipation properties by dissolving at least a part of the oxide layer.