Process for the separation of at least two elements of a structure in contact with one another by ion implantation
First Claim
1. A process for the separation of at least two elements of a structure from each other, said two elements being in contact with one another along an interface and being fixed to one another by interatomic bonds at said interface, comprising the step of:
- performing an ion implantation in order to introduce ions into the structure with an adequate energy for them to reach said interface and with an adequate dose to break said interatomic bonds so as to separate the two elements of the structure at said interface into two solid parts.
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Abstract
A process for separating at least two elements of a structure. The two elements are in contact with one another along an interface and are fixed to one another by interatomic bonds at their interface. An ion implantation is performed in order to introduce ions into the structure with an adequate energy for them to reach the interface and with an adequate dose to break the interatomic bonds. This brings about at the interface, the formation of a gaseous phase having an adequate pressure to permit the separation of the two elements.
108 Citations
13 Claims
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1. A process for the separation of at least two elements of a structure from each other, said two elements being in contact with one another along an interface and being fixed to one another by interatomic bonds at said interface, comprising the step of:
performing an ion implantation in order to introduce ions into the structure with an adequate energy for them to reach said interface and with an adequate dose to break said interatomic bonds so as to separate the two elements of the structure at said interface into two solid parts. - View Dependent Claims (2, 3, 4, 5)
- 6. A process for the separation of at least two elements of a structure from each other, the two elements being in contact with one another along an interface and are fixed to one another by interatomic bonds at said interface, consisting of performing an ion implantation in order to introduce ions into the structure with an adequate energy for them to reach said interface and with an adequate dose to break said interatomic bonds and permit a separation of the two elements, wherein ion implantation takes place on at least one area of said interface, so as to obtain a separation of the two elements of the structure in said area.
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8. A process for the separation of at least two elements of a structure from each other, said two elements being in contact with one another along an interface and being fixed to one another by interatomic bonds at said interface, comprising the step of:
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performing an ion implantation in order to introduce ions into the structure with an adequate energy for them to reach said interface and with an adequate dose to break said interatomic bonds so as to separate the two elements of the structure at said interface;
wherein the ion implantation takes place on at least one area of said interface, so as to obtain the separation of the two elements of the structure in said area;
wherein said ion implantation takes place at an implanted ion dose bringing about, at said interface, formation of a gaseous phase, said implanted ion dose making it possible to give the gaseous phase formed in said area an adequate pressure to deform at least one of the two elements of the structure; and
wherein the shape of said implanted area for deformation of said element of the structure constitutes one of a pad and a cushion.
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9. A process for the separation of at least two elements of a structure from each other, said two elements being in contact with one another along an interface and being fixed to one another by interatomic bonds at said interface, comprising the step of:
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performing an ion implantation in order to introduce ions into the structure with an adequate energy for them to reach said interface and with an adequate dose to break said interatomic bonds so as to separate the two elements of the structure at said interface;
wherein the ion implantation takes place on at least one area of said interface, so as to obtain the separation of the two elements of the structure in said area;
wherein said ion implantation takes place at an implanted ion dose bringing about, at said interface, formation of a gaseous phase, said implanted ion dose making it possible to give the gaseous phase formed in said area an adequate pressure to deform at least one of the two elements of the structure; and
wherein an external face of the element deformed by the pressure of the gaseous phase is made conductive, so that the structure can have a flexible electrical contact with an external element.
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10. A process for the separation of at least two elements of a structure from each other, said two elements being in contact with one another along an interface and being fixed to one another by interatomic bonds at said interface, comprising the step of:
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performing an ion implantation in order to introduce ions into the structure with an adequate energy for them to reach said interface and with an adequate dose to break said interatomic bonds so as to separate the two elements of the structure at said interface;
wherein the ion implantation takes place on at least one area of said interface, so as to obtain the separation of the two elements of the structure in said area;
wherein said ion implantation takes place at an implanted ion dose bringing about, at said interface, formation of a gaseous phase, said implanted ion dose making it possible to give the gaseous phase formed in said area an adequate pressure to deform at least one of the two elements of the structure; and
wherein there is a formation of electrodes positioned so as to form at least one capacitor, wherein said gaseous phase acts as a dielectric. - View Dependent Claims (11, 12)
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13. A process for the separation of at least two elements of a structure, said two elements being in contact with one another along an interface and being fixed to one another by interatomic bonds at said interface, comprising the step of:
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performing an ion implantation in order to introduce ions into the structure with an adequate energy for them to reach said interface and with an adequate dose to break said interatomic bonds and permit a separation of the two elements into two solid parts;
wherein ion implantation takes place on the entire interface, so as to obtain a complete separation of the two elements of the structure into the two solid parts; and
wherein said structure includes a first silicon element and a second SiO2 element obtained by thermal growth from the first element;
said process further comprising the step of bonding the second element to a SiC mass before separating the first and second elements into the two solid parts.
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Specification