Absstract of: WO2021158402A1

Methods, inks, apparatus, and systems for forming metal features on semiconductor substrates are provided herein. Advantageously, the techniques herein do not require the use of photoresist, and can be accomplished without many of the processes and apparatuses used in the conventional process flow. Instead, electrohydrodynamic ejection printing is used to deposit an ink that includes an electroplating additive such as accelerator or inhibitor. The printed substrate can then be electroplated in a preferential deposition process that achieves a first deposition rate on areas of the substrate where the ink is present and a second deposition rate on areas of the substrate where the ink is absent, the first and second deposition rates being different from one another. After electroplating, chemical etching may be used to spatially isolate the preferentially grown metal features from one another.

Absstract of: US2023088763A1

The present disclosure describes a new resin which can be fabricated into conductive and bioactive microstructures via two-photon polymerization. The direct incorporation of conductive poly (3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) and/or multi-walled carbon nanotubes (MWCNTs) in a poly(ethylene glycol) diacrylate (PEGDA)-based blend remarkably enhances the electrical conductivity of microstructures over 10 orders of magnitude. Including biomaterials in the resin can promote cellular adhesion and create functional biosensors made of hybrid non-conductive and conductive structures for sensitive detection. Applications include development cost effective microelectronics in a broad range of biomedical research, electronics and sensors.

Absstract of: US2023087700A1

One aspect of this invention relates to hexagonal boron nitride (hBN) ionogel inks using exfoliated hBN nanoplatelets as the solid matrix. The hBN nanoplatelets are produced from bulk hBN powders by liquid-phase exfoliation, allowing printable hBN ionogel inks to be formulated following the addition of an imidazolium ionic liquid and ethyl lactate. The resulting inks are reliably printed with variable patterns and controllable thicknesses by aerosol jet printing, resulting in hBN ionogels that possess high room-temperature ionic conductivities and storage moduli of >3 mS cm-1 and >1 MPa, respectively. By integrating the hBN ionogel with printed semiconductors and electrical contacts, fully-printed thin-film transistors with operating voltages below 1 V are demonstrated on polyimide films. These devices exhibit desirable electrical performance and robust mechanical tolerance against repeated bending cycles, thus confirming the suitability of hBN ionogels for printed and flexible electronics.

Absstract of: US2023089852A1

A method for depositing a conductive coating on a surface is provided, the method including treating the surface by depositing fullerene on the surface to produce a treated surface and depositing the conductive coating on the treated surface. The conductive coating generally includes magnesium. A product and an organic optoelectronic device produced according to the method are also provided.

Absstract of: US2023091093A1

The invention provides a curable composition for inkjet, a cured product, and a flexible printed circuit board. The curable composition for inkjet includes a soluble polyimide resin, a photocurable acrylate compound, a photopolymerization initiator, and a thermosetting resin. The curable composition for inkjet has excellent flexibility, and has a withstand voltage of greater than 2 kV even when the thickness is less than 20 μm.

Absstract of: WO2023044409A1

The present disclosure describes a new resin which can be fabricated into conductive and bioactive microstructures via two-photon polymerization. The direct incorporation of conductive poly (3,4-ethylenedioxythiophene)-poly(styrenesulfonate) (PEDOT:PSS) and / or multi-walled carbon nanotubes (MWCNTs) in a poly(ethylene glycol) diacrylate (PEGDA)- based blend remarkably enhances the electrical conductivity of microstructures over 10 orders of magnitude. Including biomaterials in the resin can promote cellular adhesion and create functional biosensors made of hybrid non-conductive and conductive structures for sensitive detection. Applications include development cost effective microelectronics in a broad range of biomedical research, electronics and sensors.

Absstract of: EP3910017A1

The present invention relates to an electrically conductive composition comprising a) a resin selected from nitrocellulose, chlorinated polyester, chlorinated polyether, chlorinated polyvinyl, chlorinated polyacetate and mixtures thereof; b) electrically conductive particles comprising graphite and carbon black, wherein ratio of said graphite and said carbon black is from 1:1 to 5:1; and c) a solvent, where in ratio of said electrically conductive particles and said resin is from 0.20:1 to 4:1. The compositions according to the present invention can be used in high speed printing techniques such as flexography and rotogravure printing.

Absstract of: US2023083182A1

The photosensitive composition according to the present invention is a photosensitive composition including a semiconductor particle (A), a photopolymerizable compound (C) and a photopolymerization initiator (D), in which the photosensitive composition satisfies any one or more of the following (a) to (c): (a) the photosensitive composition further includes a stabilizer (E), and a content of the stabilizer (E) is 8% by mass or more based on the total amount of the photosensitive composition; (b) the photopolymerizable compound (C) includes a (meth)acrylate compound (C1) having a molecular weight of 180 or less; and (c) the photopolymerizable compound (C) includes a compound (C2) having a vinyl ether group and a (meth)acryloyl group in the same molecule.

Absstract of: US2023080279A1

Fusing nanowire inks are described that can also comprise a hydrophilic polymer binder, such as a cellulose based binder. The fusing nanowire inks can be deposited onto a substrate surface and dried to drive the fusing process. Transparent conductive films can be formed with desirable properties.

Absstract of: WO2023038425A1

The present disclosure relates to a release coating composition. A release coating composition according to one aspect of the present disclosure enables a wide range of release force to be implemented when manufactured as a release film, and enables aging stability superior to that of a conventional silicon-based release film to be exhibited.

Absstract of: WO2022009838A1

The purpose of the present invention is to provide a conductive ink that can form wiring or the like on a substrate through printing and that has excellent adhesion to the substrate. The conductive ink according to the present invention contains components (A), (B), (C), and (D). The ratio (component (C)/component (D) between component (C) and component (D) is 1 or higher. Component (A): Surface-modified metal nanoparticles having a configuration in which the surfaces of metal nanoparticles (a-1) are coated with an organic protective agent (a-2). Component (B): Solvent. Component (C): Polyvinyl acetate. Component (D): Polyvinyl acetal.

Absstract of: WO2022009837A1

The purpose of the present disclosure is to provide a conductive ink that has excellent application properties and dispersibility of metal nanoparticles and that, through sintering, forms a sintered body having excellent adhesion to a substrate and excellent conductivity. A conductive ink according to the present disclosure contains components (A), (B), and (C). The component (C) content is 0.1-5.0 parts by weight per 100 parts by weight of component (A). The viscosity of the ink at 25°C is 100 mPa·s or less. Component (A): Surface-modified metal nanoparticles having a configuration in which the surfaces of the metal nanoparticles are coated with an organic protective agent. Component (B): A dispersion medium containing an alcohol (b-1) and a hydrocarbon (b-2). Component (C): A polyvinyl acetal resin.

Absstract of: JP2019087532A

To provide a conductor produced with carbon nanotubes, a conductive coating, and a method for producing the conductor, wherein, the conductor has both of high conductivity and excellent flexibility, and such a conductor can be obtained by the conductive coating and the method for producing the conductor.SOLUTION: A conductor C contains at least metal-containing bodies 1 and carbon nanotubes 21. Each metal-containing body 1 is surrounded and covered by the carbon nanotubes 21 so that the metal-containing bodies 1 are bonded together.SELECTED DRAWING: Figure 1

Absstract of: WO2023034073A1

A multi-layered composite comprising a substrate and a conductive film is provided. The substrate contains a polymer composition that contains a thermoplastic polymer having a deflection temperature under load of about 40°C or more as determined in accordance with ISO 75-2:2013 at a load of 1.8 MPa. The conductive film contains a noble metal. The composite exhibits an electromagnetic interference shielding effectiveness of about 25 decibels or more as determined in accordance with ASTM D4935-18 at a frequency of 10 GHz and thickness of 3 millimeters.

Absstract of: WO2023031383A1

The invention provides electrically conductive films containing graphene nanoplatelets packed in asubstantially Apollonian manner. The films may also comprise carbon nanotubes in order to improve their conductivity. The invention also provides liquid compositions that can be used to print the electrically conductive films described herein.

Absstract of: WO2023031389A1

The invention provides liquid compositions comprising conductive carbon particles and/or carbon nanoparticles, a thickening agent, and a solvent. The carbon nanoparticles are preferably a mixture of graphite nanoplatelets and carbon nanotubes and the thickening agent is preferably a cellulose derivative. The liquid compositions can be used as ink to print highly conductive films that adhere to paper substrates.

Absstract of: US2023075718A1

A method for preparing a nanosheet dispersion solution includes a step of adding a two-dimensional material having a layered structure to a solvent containing at least two materials to weaken an interlayer bonding force, and a step in which a nanosheet, which is exfoliated as the material is attached to a surface thereof by a covalent bond during the exfoliation process, has a repulsive force so as not to agglomerate.The nanosheet dispersion solution prepared by the preparing method of the inventive concept may be obtained by increasing the surface area of the two-dimensional sheet from the two-dimensional material, may solve the problem of the yield, may reduce a barrier in the charge transfer by reducing the interlayer distance, and may maintain the dispersed phase of the ink prepared by the repulsive force of the nanosheet.

Absstract of: WO2023032355A1

An electronic device production method according to the present invention comprises: a step for preparing an electronic substrate comprising a wiring board, an electronic component arranged on the wiring board, and a ground electrode having an organic acid on the surface; and a step for applying ink for electrically conductive layer formation on at least a portion on the ground electrode having organic acid on the surface, and forming an electrically conductive layer which is a cured film of the ink for electrically conductive layer formation. The organic acid contains at least one type of compound selected from the group consisting of monocarboxylic acids and dicarboxylic acids having a molecular weight of less than 350.

Absstract of: US2023076341A1

The present invention relates to an electrically conductive composition comprising a) a resin selected from nitrocellulose, chlorinated polyester, chlorinated polyether, chlorinated polyvinyl, chlorinated polyacetate and mixtures thereof; b) electrically conductive particles comprising graphite and carbon black, wherein ratio of said graphite and said carbon black is from 1:1 to 5:1; and c) a solvent, where in ratio of said electrically conductive particles and said resin is from 0.20:1 to 4:1. The compositions according to the present invention can be used in high-speed printing techniques such as flexography and rotogravure printing.

Absstract of: US2023070055A1

Disclosed are a precursor solution for a copper-zinc-tin-sulfur (CZTS) thin film solar cell, a preparation method therefor, and the use thereof. The present invention discloses two types of simple metal complexes which are capable of formulating a high-quality precursor solution.

Absstract of: US2023070213A1

The invention relates to a method of manufacturing technical radio frequency functional structures comprising the steps of providing a base body determining the shape of the functional structure and applying an electrically conductive layer to the shape-determining base body by means of wetting the base body with a dispersion containing microparticles and/or nanoparticles.

Absstract of: JP2023032463A

【課題】大気暴露耐性が向上した導電層を備えた導電性積層体と、その導電層を形成可能な導電性高分子含有液を提供する。【解決手段】π共役系導電性高分子及びポリアニオンを含む導電性複合体と、有機溶剤と、１種以上のアクリルモノマーと、前記アクリルモノマー以外のウレタンアクリレートとを含有する導電性高分子含有液であり、前記ポリアニオンが、前記ポリアニオンの一部のアニオン基と、第四級アンモニウム化合物との反応によって修飾されている、導電性高分子含有液。【選択図】なし

Absstract of: KR20230032142A

본 발명은 대전방지 코팅용 조성물, 이를 포함하는 코팅제 및 대전방지 코팅제 제조방법에 관한 것이다. 본 발명에 따른 대전방지 코팅용 조성물은, 대전방지 코팅제로 적용될 경우, 보다 유기 용제에는 잘 제거되지 않으면서도 친수계 용매에는 잘 용해되어 작업성을 극대화시킬 수 있는 동시에, 제품 적용성 측면에서도 대전방지능에 대한 편차가 적은 우수한 대전 방지용 코팅제를 제공할 수 있다.

Absstract of: KR20230031524A

본 출원은, 무입자이고 투명하며 소결개시온도가 향상된 잉크 조성물을 제공할 수 있다. 본 출원은 또한, 상기와 같은 잉크 조성물을 포함함으로써 얇은 두께의 내부전극을 제공할 수 있다.

Absstract of: KR20230030965A

본 발명에 의한 대전방지 이형코팅제는 25℃에서 점도가 15,000 내지 25,000 cP이며, 말단 이중결합을 포함하는 오르가노 폴리실록산 분산액; 25 ℃에서 점도가 15 내지 35 cP인 하이드로젠 실록산 가교제; 실록산계 밀착성 증진제; 및 단일벽 탄소나노튜브 분산액;을 포함하는 것을 특징으로 한다.