Stmicroelectronics S.r.l.

Teresa Napolitano

Anna Morra

Roberta Cuozzo

Luigi Giuseppe Occhipinti

Danilo Mascolo

Valeria Casuscelli

Raffaele Vecchione

Rossana Scaldaferri

Claudio De Rosa

Odda Ruiz De Ballesteros

Giovanni Palomba

Finizia Auriemma

An organic thin film transistor includes a dielectric layer and an active layer overlapping the dielectric layer, a source contact and a drain contact arranged on a surface of the active layer opposite the dielectric layer and mutually separated by an intermediate region, the source contact and drain contact having first and second inner walls, respectively, facing the intermediate region, and a gate contact arranged on a portion of another surface of the dielectric layer opposite the active layer and having first and second side walls aligned with the first and second inner walls, respectively.

Organic thin film transistor and process for manufacturing same

A cross-point cell nanoarray comprises a mechanical support substrate, first and second orders of uniformly spaced parallel electrodes separated by an electrically active organic film and orthogonally arranged to form an array of cross-point cells, individually addressable by biasing the respective opposite electrodes, by selecting them among those of the respective orders, over a planar area of the substrate. The active organic resin layer includes a block copolymer of a major component resin and of at least one different minor component resin, configured to promote formation of large-scale ordered nanostructures through phase segregation, due to block incompatibility and self-assembly properties of the blocks. Polymeric bocks of the ordered nanostructures configured to sequester conductive nanoparticles and/or conductive nanoparticle clusters originally dispersed in the component organic resins, subtracting them from the surrounding matrix copolymer. Preferential electric current paths across the thickness of the active organic layer at cross-over points are thus created.

Cross-point cell nanoarray with anisotropic active organic layer

A process for manufacturing an organic thin film transistor includes the steps of arranging a shaping element having a first profile defining a slot, forming a mold suitable to define a cavity with the shaping element, depositing source and drain layers, an active material layer and a dielectric layer within the cavity, depositing a gate layer in the slot of the shaping element, and transferring the gate layer in contact with the dielectric layer by means of the shaping element.

A process for manufacturing a non-volatile memory structure, in particular of a cross-point type provided with an array of memory cells, including forming bottom electrodes on a substrate; forming areas of active material on the bottom electrodes; and forming top electrodes on the areas of active material. The memory cells are defined at the intersection of the bottom electrode with the top electrode. At least one from among the steps of forming bottom electrodes, forming areas of active material, and forming top electrodes includes using soft-lithography techniques, chosen from amongst 'microtransfer molding', 'micromolding in capillary', and &#x201c;microcontact printing&#x201d;. According to a first type of structure, the step of forming areas of active material includes forming strips of active material in a way self-aligned with respect to the bottom electrodes or the top electrodes; according to a different type of structure, the step of forming areas of active material envisages forming monolayer or multilayer pads between the bottom electrodes and the top electrodes.

Process for manufacturing a non-volatile memory structure via soft lithography

A method manufactures a single electron transistor device by electro-migration of nanocluster wherein said nanoclusters are metallically passivated and forced to assembly over a lithographic patterned substrate under control of a non homogeneous electric field at room temperature. A controlled migration and the desired location of the metallic passivated nanoclusters are based on a dielectrophoretic process.

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Cimitile, Italy

Teresa Napolitano