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公开(公告)号：US20180326416A1
公开(公告)日：2018-11-15
申请号：US15776872
申请日：2016-11-22
Inventor： Ulrich BUTTNER , Yousof MASHRAEI , Sumeyra AGAMBAYEV , Khaled N. SALAMA
CPC classification number: B01L3/502707 , B01L2300/0816 , B01L2300/0822 , B01L2300/168 , B01L2400/0487 , B01L2400/049 , B29C64/135 , B29C64/35 , B29C67/00 , B29K2995/0056 , B29L2031/756 , B33Y10/00 , B33Y70/00 , B33Y80/00
Abstract: Microfluidics has advanced in terms of designs and structures, however, fabrication methods are either time consuming or expensive to produce, in terms of the facilities and equipment needed. A fast and economically viable method is provided to allow, for example, research groups to have access to microfluidic fabrication. Unlike most fabrication methods, a method is provided to fabricate a microfluidic device in one step. In an embodiment, a resolution of 50 micrometers was achieved by using maskless high-resolution digital light projection (MDLP). Bonding and channel fabrication of complex or simple structures can be rapidly incorporated to fabricate the microfluidic devices.
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Patent Agency Ranking
2.发明申请公开(公告)号：US20180169794A1
公开(公告)日：2018-06-21
申请号：US15576586
申请日：2016-06-24
Applicant: KING ABDULLAH UNIVERSITY OF SCIENCE AND TECHNOLOGY , SAUDI ARABIAN OIL COMPANY , SAUDI ARABIAN OIL COMPANY ARAMCO R&D
Inventor： Khaled Hamdan ALMUHAMMADI , Gilles Henri Fernard LUBINEAU , Marco Francesco ALFANO , Ulrich BUTTNER
CPC classification number: B23K26/60 , B23K26/20 , B23K26/352 , G01N1/44 , G01N21/65 , G01N27/026 , G01N27/041 , G01N2001/045
Abstract: Various examples are provided related to the preparation of electrodes on carbon fiber reinforced polymer (CFRP) composites with low contact resistance. Laser-based surface preparation can be used for bonding to CFRP composites. In one example, a method includes preparing a pretreated target area on a CFRP composite surface using laser pulsed irradiation and bonding an electrode to exposed fibers in the pretreated target area. The surface preparation can allow the electrode to have a low contact resistance with the CFRP composite.
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3.发明申请公开(公告)号：US20220332570A1
公开(公告)日：2022-10-20
申请号：US17640890
申请日：2020-09-09
Inventor： Thomas D. ANTHOPOULOS , Kalaivanan LOGANATHAN , Ulrich BUTTNER , Emre YENGEL , Hendrik Andreas FABER
Abstract: A method for manufacturing a soft stamp includes providing a substrate having a first electrode and a second electrode, the second electrode being formed at a distance less than 100 nm from the first electrode so that a nanogap Ng is formed between the first and second electrodes; pouring a curable substance over the first and second electrodes and into the nanogap Ng; curing the curable substance to form a soft stamp; and removing the soft stamp from the first and second electrodes. The soft stamp has a nano-feature having a size less than 100 nm.
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公开(公告)号：US20210380919A1
公开(公告)日：2021-12-09
申请号：US17283075
申请日：2019-07-24
Inventor： Ulrich BUTTNER
Abstract: A method for directly bonding a metal to a transparent substrate includes providing a substrate; placing a metal foil directly on a face of the substrate; irradiating a portion of the metal foil with a laser beam so that metal corresponding to the portion melts and bonds directly to the substrate and forms a metal pad; and pumping a gas above the portion to prevent oxidation of the melted metal.
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公开(公告)号：US20180372664A1
公开(公告)日：2018-12-27
申请号：US15741451
申请日：2016-07-01
Inventor： Ulrich BUTTNER , Khaled Nabil SALAMA , Christos SAPSANIS
IPC: G01N27/22 , B23K26/362 , B23K26/40
Abstract: Methods of fabricating devices vial selective laser etching are provided. The methods can include selective laser etching of a portion of a metal layer, e.g. using a laser light source having a wavelength of 1,000 nm to 1,500 nm. The methods can be used to fabricate a variety of features, including an electrode, an interconnect, a channel, a reservoir, a contact hole, a trench, a pad, or a combination thereof. A variety of devices fabricated according to the methods are also provided. In some aspects, capacitive humidity sensors are provided that can be fabricated according to the provided methods. The capacitive humidity sensors can be fabricated with intricate electrodes, e.g. having a fractal pattern such as a Peano curve, a Hilbert curve, a Moore curve, or a combination thereof.
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6.发明申请公开(公告)号：US20170240434A1
公开(公告)日：2017-08-24
申请号：US15419184
申请日：2017-01-30
Inventor： Mario BLANCO , Ulrich BUTTNER
CPC classification number: C01G49/14 , C22B1/11 , C22B3/12 , Y02P10/234 , Y02P20/544
Abstract: Process for enhanced metal recovery from, for example, metal-containing feedstock using liquid and/or supercritical fluid carbon dioxide and a source of oxidation. The oxidation agent can be free of complexing agent. The metal-containing feedstock can be a mineral such as a refractory mineral. The mineral can be an ore with high sulfide content or an ore rich in carbonaceous material. Waste can also be used as the metal-containing feedstock. The metal-containing feedstock can be used which is not subjected to ultrafine grinding. Relatively low temperatures and pressures can be used. The metal-containing feedstock can be fed into the reactor at a temperature below the critical temperature of the carbon dioxide, and an exotherm from the oxidation reaction can provide the supercritical temperature. The oxidant can be added to the reactor at a rate to maintain isothermal conditions in the reactor. Minimal amounts of water can be used as an extractive medium.
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