摘要:
A method of producing a recurrent neural network computer includes consecutive steps of providing a substrate with a first electrode; structuring the first electrode by etching using a first mask made of block copolymers, such that said electrode has free regions which are randomly spatially distributed; forming a resistive-RAM-type memory layer on the first structured electrode; forming a second electrode on the memory layer; and structuring the second electrode by etching, using a second mask made of block copolymers such that said electrode has free regions which are randomly spatially distributed.
摘要:
The invention relates to a field-effect transistor including an active zone including a source, a channel, a drain and a control gate, which is positioned level with said channel, allowing a current to flow through said channel between the source and drain along an x-axis, said channel including: a first edge of separation with said source; and a second edge of separation with said drain; said channel being compressively or tensilely strained, characterized in that said channel includes a localized perforation or a set of localized perforations along at least said first and/or second edge of said channel so as to also create at least one shear strain in said channel. The invention also relates to a process for fabricating said transistor.
摘要:
A method for forming a functionalised guide pattern, includes forming a functionalisation layer on a substrate; depositing a protective layer on the functionalisation layer; forming a guide pattern on the protective layer that has a cavity opening onto the protective layer and a bottom and side walls; implanting ions with an atomic number of less than 10 in a portion of the protective layer located at the bottom of the cavity, such that the implanted portion can be selectively etched relative to the non-implanted portion; forming, in the cavity, a second functionalisation layer having first and second portions disposed on, respectively, the protective layer at the bottom of the cavity and the side walls of the cavity; and selectively etching the implanted portion and the first portion of the second functionalisation layer, to expose a portion of the functionalisation layer located at the bottom of the cavity.
摘要:
The disclosed process includes the successive stages of providing a substrate comprising a dielectric layer; forming a first layer of block copolymers on a part of the dielectric layer, so that the dielectric layer exhibits free zones with a random spatial distribution; etching the free zones, so as to structure the dielectric layer; removing the first layer of block copolymers; forming a first electrode on the structured dielectric layer; forming a memory layer, of resistive memory type, on the first electrode; forming a second electrode on the memory layer; forming a second layer of block copolymers on a part of the second electrode, so that the second electrode exhibits free zones with a random spatial distribution; etching the free zones, so as to structure the second electrode; and removing the second layer of block copolymers.
摘要:
A method for forming a functionalised assembly guide intended for the self-assembly of a block copolymer by graphoepitaxy, includes forming on the surface of a substrate a neutralisation layer made of a first material having a first neutral chemical affinity with regard to the block copolymer; forming on the neutralisation layer a first mask including at least one recess; depositing on the neutralisation layer a second material having a second preferential chemical affinity for one of the copolymer blocks, in such a way as to fill the at least one recess of the first mask; and selectively etching the first mask relative to the first and second materials, thereby forming at least one guide pattern made of the second material arranged on the neutralisation layer.
摘要:
A process for fabricating one transistor, comprising a semiconductor region, comprising a source region, a drain region, and a channel region covered with a gate, comprises: production of an primary etching mask on the surface of the semiconductor region, said mask containing at least one primary aperture; depositing in said primary aperture a block copolymer containing, in alternation, at least first polymer domains and second polymer domains; removing either a series of first polymer domains or a series of second polymer domains in order to create a secondary mask containing secondary apertures; etching said active region through said secondary apertures in order to define nanoscale self-aligned semiconductor features; producing said gate on the surface of said self-aligned semiconductor features.
摘要:
The invention relates to a surface preparation method using a combination of at least two polymers, which are the same or different, which are grafted hierarchically or multiply on a surface, and also to the use of this preparation method, more particularly in applications for controlling the surface energy of a substrate. The invention may allow a block polymer to be structured with a minimum of defects.
摘要:
The disclosed process includes the successive stages of providing a substrate comprising a dielectric layer; forming a first layer of block copolymers on a part of the dielectric layer, so that the dielectric layer exhibits free zones with a random spatial distribution; etching the free zones, so as to structure the dielectric layer; removing the first layer of block copolymers; forming a first electrode on the structured dielectric layer; forming a memory layer, of resistive memory type, on the first electrode; forming a second electrode on the memory layer; forming a second layer of block copolymers on a part of the second electrode, so that the second electrode exhibits free zones with a random spatial distribution; etching the free zones, so as to structure the second electrode; and removing the second layer of block copolymers.
摘要:
The invention relates to a surface preparation method using a combination of at least two polymers, which are the same or different, which are grafted hierarchically or multiply on a surface, and also to the use of this preparation method, more particularly in applications for controlling the surface energy of a substrate. The invention may allow a block polymer to be structured with a minimum of defects.
摘要:
A method for making a quantum device including:
forming, over a semiconductor layer, a graphoepitaxy guide forming a cavity with a lateral dimension that is a multiple of a period of self-assembly of a di-block copolymer into lamellas; first deposition of the copolymer in the cavity;
first self-assembly of the copolymer, forming a first alternating arrangement of first lamellas and of second lamellas;
removal of the first lamellas;
implantation of dopants in portions of the semiconductor layer previously covered with the first lamellas;
removal of the second lamellas; second deposition of the copolymer in the cavity, over a gate material; second self-assembly of the copolymer, forming a second alternating arrangement of first and second lamellas; removal of the second lamellas; etching of portions of the gate material previously covered with the second lamellas.