Stmicroelectronics S.r.l.

Angela Cimmino

Andrea Di Matteo

Maria Fortuna Bevilacqua

Vincenza Di Palma

Valeria Casuscelli

Giovanna Salzillo

Maria Viviana Volpe

Alessandro Pezzella

Aniello Palma

The present disclosure relates to a precursor solution for the preparation of a ceramic of the BZT-&#x3b1;BXT type, where X is selected from Ca, Sn, Mn, and Nb, and &#x3b1; is a molar fraction selected in the range between 0.10 and 0.90, said solution comprising: 1) at least one barium precursor compound; 2) a precursor compound selected from the group consisting of at least one calcium compound, at least one tin compound, at least one manganese compound, and at least one niobium compound; 3) at least one anhydrous precursor compound of zirconium; 4) at least one anhydrous precursor compound of titanium; 5) a solvent selected from the group consisting of a polyol and mixtures of a polyol and a secondary solvent selected from the group consisting of alcohols, carboxylic acids, esters, ketones, ethers, and mixtures thereof; and 6) a chelating agent, as well as method of using the same.

Precursor solution and method for the preparation of a lead-free piezoelectric material

A biosensor includes a flexible foil with an electrode layer positioned on the foil. An adhesive layer is positioned on the foil layer, and a first photo-definable hydrogel membrane is positioned over the electrode layer and the adhesive layer. A second photo-definable hydrogel membrane with an immobilized bio-recognition element is positioned over the first hydrogel membrane in contact with the electrode layer through an opening in the first hydrogel membrane.

Biosensor

A method for manufacturing a biosensor includes forming an electrode layer on a flexible foil. An adhesive layer is positioned on the foil layer, and a first photo-definable hydrogel membrane is positioned over the electrode layer and the adhesive layer. A second photo-definable hydrogel membrane with an immobilized bio-recognition element is positioned over the first hydrogel membrane in contact with the electrode layer through an opening in the first hydrogel membrane.

Method of manufacturing a biosensor

A method comprises providing a bottom electrode, depositing, on the bottom electrode, an active material comprising a first structural portion having an absorption peak at a UV wavelength, wherein such first structural portion is photo-activatable at such wavelength and which is constituted by monomers or oligomers that, when irradiated at said wavelength, undergo a photo-polymerization and/or photo-cross-linking reaction, or constituted by a polymer that at a UV wavelength undergoes a photo-degradation reaction, and a second electrically active or activatable structural portion which is substantially transparent to such predetermined UV wavelength; exposing a portion of the active material, through a photomask, to UV radiation having such UV wavelength, with photo-activation of the exposed portion of such film; selectively removing either the exposed photo-activated portion or the non-exposed portion, with exposure of a respective portion of the bottom electrode; depositing a head electrode.

Circuit architecture on an organic base and related manufacturing method

A process performs solid phase synthesis of halogenated derivatives of fluorescein, and includes reacting fluorescein with a halide MX, wherein M is an alkali metal and X is a halogen, and Oxone&#xae; (2 KHSO.KHSO.KSO), at a temperature higher than or equal to 150&#xb0; C. A structure uses a halogenated derivative of fluorescein selected from the group consisting of 2',4&#x2032;,5&#x2032;-trichlorofluorescein, 2&#x2032;,4&#x2032;,5&#x2032;,7&#x2032;-tetrachlorofluorescein, 4&#x2032;,5&#x2032;-diiodofluorescein diacetate and 2&#x2032;,4&#x2032;,5&#x2032;-triiodofluorescein as electro-bistable material in a non-volatile memory device.

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Caserta, Italy

Angela Cimmino