公开(公告)号：US20110138878A1

公开(公告)日：2011-06-16

申请号：US12962170

申请日：2010-12-07

Applicant: Bogdan Catalin Serban ,  Cornel P. Cobianu ,  Mihai N. Mihaila ,  Viorel Georgel Dumitru

Inventor： Bogdan Catalin Serban ,  Cornel P. Cobianu ,  Mihai N. Mihaila ,  Viorel Georgel Dumitru

IPC: G01N29/036

CPC classification number: G01N33/004 ,  G01N29/022 ,  G01N29/036 ,  G01N2291/021 ,  G01N2291/0256 ,  G01N2291/02809 ,  G01N2291/0427 ,  Y02A50/244

Abstract: A carbon dioxide sensor comprising a first beam that includes a functionalized surface and a second beam that includes a functionalized surface such that reduced-drift differential sensing of carbon dioxide may be performed by monitoring changes in the resonant frequency of the first beam relative to the resonant frequency of second beam.

Abstract translation: 一种二氧化碳传感器，包括包括官能化表面的第一光束和包括官能化表面的第二光束，使得可以通过监测第一光束相对于谐振的谐振频率的变化来执行二氧化碳的减小漂移差分感测 第二光束的频率。

公开(公告)号：US07651879B2

公开(公告)日：2010-01-26

申请号：US11164845

申请日：2005-12-07

Applicant: Cornel P. Cobianu ,  Ioan Pavelescu ,  Viorel V. Avramescu ,  James D. Cook ,  Leonard J. McNally

Inventor： Cornel P. Cobianu ,  Ioan Pavelescu ,  Viorel V. Avramescu ,  James D. Cook ,  Leonard J. McNally

IPC: H01L21/00

CPC classification number: G01L9/0025 ,  Y10T29/49005 ,  Y10T29/4902 ,  Y10T29/4908

Abstract: Improved SAW pressure sensors and manufacturing methods thereof. A SAW wafer including a number of SAW transducers disposed thereon may be provided. A cover wafer may also be provided, with a glass wall situated between the cover wafer and the SAW wafer. The cover wafer may be secured to the SAW wafer such that the glass wall surrounds the SAW transducers. In some instances, the glass wall may define, at least in part, a separation between the cover wafer and the SAW wafer. One or more contours may also be provided between the cover wafer and the SAW wafer such that at least one of the contours surrounds at least one of the SAW transducers when the cover wafer is disposed over and secured relative to the SAW wafer.

Abstract translation: 改进的SAW压力传感器及其制造方法。 可以提供包括设置在其上的多个SAW换能器的SAW晶片。 还可以提供覆盖晶片，其中玻璃壁位于盖晶片和SAW晶片之间。 覆盖晶片可以固定到SAW晶片，使得玻璃壁围绕SAW换能器。 在一些情况下，玻璃壁可以至少部分地限定覆盖晶片和SAW晶片之间的间隔。 也可以在盖晶片和SAW晶片之间提供一个或多个轮廓，使得当盖晶片相对于SAW晶片设置在上方并且被固定时，轮廓中的至少一个围绕至少一个SAW换能器。

公开(公告)号：US20100012168A1

公开(公告)日：2010-01-21

申请号：US12504638

申请日：2009-07-16

Applicant: Mihai N. Mihaila ,  Viorel-Georgel Dumitru ,  Cornel P. Cobianu ,  Mircea Bercu ,  Bogdan-Catalin Serban

Inventor： Mihai N. Mihaila ,  Viorel-Georgel Dumitru ,  Cornel P. Cobianu ,  Mircea Bercu ,  Bogdan-Catalin Serban

IPC: H01L31/042 ,  H01L31/00

CPC classification number: H01L31/0352 ,  H01L31/078 ,  Y02E10/50

Abstract: Solar cells and solar cell assemblies that may be tuned for greater sensitivity to particular ranges of energy within the electromagnetic spectrum. In some instances, a solar cell may include a tunable electron conductor that permits greater choices in quantum dots, thereby providing solar cells that can be constructed to utilize a larger fraction of the solar spectrum. In some cases, the electron conductor may include group III nitride-based materials. A solar cell assembly is also disclosed that may include a first quantum dot solar cell and a second quantum dot solar cell. The first and second quantum dot solar cells may be tuned for differing portions of the electromagnetic spectrum.

Abstract translation: 太阳能电池和太阳能电池组件可以被调整以对电磁光谱内的特定能量范围提供更高的灵敏度。 在一些情况下，太阳能电池可以包括可调电子导体，其允许量子点中的更多选择，从而提供太阳能电池，其可构造为利用太阳光谱的较大部分。 在一些情况下，电子导体可以包括III族氮化物基材料。 还公开了可以包括第一量子点太阳能电池和第二量子点太阳能电池的太阳能电池组件。 第一和第二量子点太阳能电池可以针对电磁频谱的不同部分进行调谐。

公开(公告)号：US07913541B2

公开(公告)日：2011-03-29

申请号：US11799372

申请日：2007-04-30

Applicant: Bogdan Catalin Serban ,  Cornel P. Cobianu ,  Mircea Bercu ,  Nicolae Varachiu ,  Mihai N. Mihaila ,  Cazimir G. Bostan ,  Stefan Ioan Voicu

Inventor： Bogdan Catalin Serban ,  Cornel P. Cobianu ,  Mircea Bercu ,  Nicolae Varachiu ,  Mihai N. Mihaila ,  Cazimir G. Bostan ,  Stefan Ioan Voicu

IPC: G01N29/02

CPC classification number: G01N29/022 ,  B82Y30/00 ,  G01N2291/021 ,  G01N2291/0256 ,  Y10S977/745 ,  Y10S977/953 ,  Y10S977/957

Abstract: The design and synthesis of a matrix nanocomposite containing amino carbon nanotubes used as a functionalized sensing layer for carbon dioxide detection by means acoustic wave sensing devices, e.g., SAW/BAW devices. These sensing materials contain a type of amino carbon nanotubes (single walled or multi-walled) and a polymer (or other compounds) which are sensitive to carbon dioxide in the acoustic wave sensing device based gas sensors. The sensitivity of the matrix consisting of the amino carbon nanotubes and a polymer (or other compounds) is ensured by the presence of amino groups which can react at room temperature with CO2 in a reversible process to form carbamates.

Abstract translation: 含有氨基碳纳米管的基质纳米复合材料的设计和合成用作通过诸如SAW / BAW器件的声波感测装置用于二氧化碳检测的功能化感测层。 这些传感材料包含一种氨基碳纳米管（单壁或多壁）和在基于声波感测装置的气体传感器中对二氧化碳敏感的聚合物（或其它化合物）。 由氨基碳纳米管和聚合物（或其他化合物）组成的基质的灵敏度通过存在可在可逆过程中与室温下反应形成氨基甲酸酯的氨基来确保。

公开(公告)号：US07867552B2

公开(公告)日：2011-01-11

申请号：US12116778

申请日：2008-05-07

Applicant: Bogdan-Catalin Serban ,  Viorel-Georgel Dumitru ,  Cornel P. Cobianu ,  Stefan-Dan Costea ,  Nicolae Varachiu ,  Stefan I. Voicu

Inventor： Bogdan-Catalin Serban ,  Viorel-Georgel Dumitru ,  Cornel P. Cobianu ,  Stefan-Dan Costea ,  Nicolae Varachiu ,  Stefan I. Voicu

IPC: G01N27/416 ,  B05D5/12

CPC classification number: G01N33/0044 ,  G01N29/022 ,  G01N2291/014 ,  G01N2291/0255 ,  G01N2291/0423 ,  G01N2291/0426

Abstract: Methods can be adapted for design of a sensitive monolayer for detection of hydrogen sulphide at room temperature with SAW/BAW devices. The sensitive monolayer can be synthesized based on chemical compounds, which belongs to a class of thiacalix[n]arenas, mercapto halides, mercapto alcohols and chloromethylated thiacalix[n]arenas. The sensitive monolayer can be directly immobilized or anchored at the surface of a piezoelectric quartz substrate in a covalently bonded manner by means of direct printing process. The piezoelectric quartz substrate can be activated in basic medium or in acid medium before the immobilization of the sensitive monolayer in order to increase the population of OH groups. Thus, the synthesized sensitive monolayer exhibits a high site density, fast response and long-term stability for H2S sensing.

Abstract translation: 可以使用SAW / BAW器件在室温下设计用于检测硫化氢的敏感单层的方法。 敏感单层可以基于化学化合物合成，该化合物属于一类thiacalix [n]，巯基卤化物，巯基醇和氯甲基化硫化钠[n]场。 敏感单层可以通过直接印刷方法以共价键合的方式直接固定或锚定在压电石英基板的表面。 在敏感单层固定之前，压电石英衬底可以在碱性介质中或在酸性介质中活化，以增加OH基团的数量。 因此，合成的敏感单层表现出高的位置密度，快速响应和H2S感测的长期稳定性。

公开(公告)号：US07695993B2

公开(公告)日：2010-04-13

申请号：US12116724

申请日：2008-05-07

Applicant: Bogdan-Catalin Serban ,  Stefan I. Voicu ,  Stefan-Dan Costea ,  Cornel P. Cobianu

Inventor： Bogdan-Catalin Serban ,  Stefan I. Voicu ,  Stefan-Dan Costea ,  Cornel P. Cobianu

IPC: H01L21/00 ,  H01L29/12 ,  H01L49/00 ,  G01N27/12

CPC classification number: G01N29/022 ,  G01N29/036 ,  G01N33/0044 ,  G01N2291/021 ,  G01N2291/0255 ,  G01N2291/0257 ,  G01N2291/0423 ,  G01N2291/0426 ,  Y10S977/748 ,  Y10S977/835 ,  Y10T29/49002

Abstract: A method can be adapted for design and preparation of a matrix nanocomposite sensing film for hydrogen sulphide SAW/BAW detection at room temperature. A matrix nanocomposite can be synthesized by incorporating both single-wall and multi-wall thiolated carbon nanotubes into conductive organic polymers or ceramic nanocrystalline in a properly functionalized manner. A thin organic sensing film can be prepared based on the matrix nanocomposite. The matrix nanocomposite sensing film can be prepared on a surface of a SAW/BAW device by an additive process or a direct printing process. Finally, the sensing film can be consolidated by thermal annealing or laser annealing under ambient conditions in order to obtain the stable sensing film with higher sensitivity and electrical properties for a SAW/BAW based H2S sensor.

Abstract translation: 一种方法可以适用于在室温下用于硫化氢SAW / BAW检测的基质纳米复合材料感测膜的设计和制备。 可以通过将单壁和多壁硫醇化碳纳米管以适当的官能化方式并入导电有机聚合物或陶瓷纳米晶体中来合成基质纳米复合材料。 可以基于基体纳米复合材料制备薄的有机传感膜。 可以通过添加方法或直接印刷方法在SAW / BAW装置的表面上制备基质纳米复合材料感测膜。 最后，感应膜可以在环境条件下通过热退火或激光退火进行固结，以获得具有更高灵敏度和电气性能的稳定感测膜，用于基于SAW / BAW的H2S传感器。

公开(公告)号：US20080264147A1

公开(公告)日：2008-10-30

申请号：US11799372

申请日：2007-04-30

Applicant: Bogdan Catalin Serban ,  Cornel P. Cobianu ,  Mircea Bercu ,  Nicolae Varachiu ,  Mihai N. Mihaila ,  Cazimir G. Bostan ,  Stefan loan Voicu

Inventor： Bogdan Catalin Serban ,  Cornel P. Cobianu ,  Mircea Bercu ,  Nicolae Varachiu ,  Mihai N. Mihaila ,  Cazimir G. Bostan ,  Stefan loan Voicu

IPC: G01N29/02 ,  B05D5/12

CPC classification number: G01N29/022 ,  B82Y30/00 ,  G01N2291/021 ,  G01N2291/0256 ,  Y10S977/745 ,  Y10S977/953 ,  Y10S977/957

Abstract: The design and synthesis of a matrix nanocomposite containing amino carbon nanotubes used as a functionalized sensing layer for carbon dioxide detection by means acoustic wave sensing devices, e.g., SAW/BAW devices. These sensing materials contain a type of amino carbon nanotubes (single walled or multi-walled) and a polymer (or other compounds) which are sensitive to carbon dioxide in the acoustic wave sensing device based gas sensors. The sensitivity of the matrix consisting of the amino carbon nanotubes and a polymer (or other compounds) is ensured by the presence of amino groups which can react at room temperature with CO2 in a reversible process to form carbamates.

Abstract translation: 含有氨基碳纳米管的基质纳米复合材料的设计和合成用作通过诸如SAW / BAW器件的声波感测装置用于二氧化碳检测的功能化感测层。 这些传感材料包含一种氨基碳纳米管（单壁或多壁）和在基于声波感测装置的气体传感器中对二氧化碳敏感的聚合物（或其它化合物）。 由氨基碳纳米管和聚合物（或其它化合物）组成的基质的灵敏度通过在可逆过程中在室温下与CO 2反应形成氨基甲酸酯的氨基的存在来确保 。

公开(公告)号：US20080001741A1

公开(公告)日：2008-01-03

申请号：US11477257

申请日：2006-06-29

Applicant: Cornel P. Cobianu ,  Ion Georgescu ,  Viorel-Georgel Dumitru

Inventor： Cornel P. Cobianu ,  Ion Georgescu ,  Viorel-Georgel Dumitru

IPC: G08B13/14 ,  G08B21/00

CPC classification number: G08B13/128 ,  B60R25/1004 ,  G08B13/1454

Abstract: A wireless monitoring system and method. A distributed electrical circuit can be printed on a dielectric film for wrapping pallets or containers in a logistic chain, wherein the distributed electrical circuit (e.g., a Wheatstone Bridge) detects a rupture of the film through an electrical resistance change of one or more elements of the distributed electrical circuit. The electrical resistance change is indicative of a potential tampering event. An electronic module can be provided that conditions and processes a signal transmitted from the distributed electrical circuit and thereafter transmits the signal wirelessly via an antenna to a monitoring station. Additionally, a monitoring station can be implemented, which communicates with a network and the electronic module, and permits a user in real time to receive data concerning the potential tampering event.

Abstract translation: 一种无线监控系统及方法。 分布式电路可以印刷在用于将托盘或容器包裹在逻辑链中的电介质膜上，其中分布式电路（例如，惠斯通电桥）通过一个或多个元件的电阻变化来检测膜的破裂 分布式电路。 电阻变化表示潜在的篡改事件。 可以提供一种电子模块，其对从分布式电路发送的信号进行调节和处理，然后经由天线将信号无线发送到监控站。 此外，可以实现与网络和电子模块进行通信并且允许用户实时地接收关于潜在篡改事件的数据的监控站。

公开(公告)号：US08563319B2

公开(公告)日：2013-10-22

申请号：US12962067

申请日：2010-12-07

Applicant: Bogdan Catalin Serban ,  Cornel P. Cobianu ,  Mihai N. Mihaila ,  Viorel Georgel Dumitru ,  Octavian Buiu

Inventor： Bogdan Catalin Serban ,  Cornel P. Cobianu ,  Mihai N. Mihaila ,  Viorel Georgel Dumitru ,  Octavian Buiu

IPC: G01N33/00 ,  G01N29/36

CPC classification number: G01N33/0037 ,  G01N29/022 ,  G01N2291/021 ,  G01N2291/0427 ,  Y02A50/245

Abstract: A nitrogen dioxide sensor comprising a first beam having a first functionalized sensing surface capable of sensing nitrogen dioxide, the first beam capable of producing a first resonant frequency; and a second beam having a second functionalized reference surface not capable of sensing nitrogen dioxide, the second beam capable of producing a second resonant frequency, wherein differential sensing of nitrogen dioxide may be performed, further wherein the first beam and the second beam are each functionalized with one or more soft bases having comparable viscoelastic properties is provided. In one embodiment, the sensor is a nano-sensor capable of low drift and accurate detection of nitrogen dioxide levels at the zeptogram level. Methods of making and using a nitrogen dioxide sensor are also provided.

Abstract translation: 一种二氧化氮传感器，包括具有能够感测二氧化氮的第一功能化感测表面的第一光束，所述第一光束能够产生第一谐振频率; 以及具有不能感测二氧化氮的第二功能化参考表面的第二光束，所述第二光束能够产生第二谐振频率，其中可以执行二氧化氮的差分感测，其中第一光束和第二光束均被功能化 提供了一种或多种具有可比较的粘弹性的软碱。 在一个实施例中，该传感器是能够低水准漂移并准确检测氧化氮水平的纳米传感器。 还提供了制造和使用二氧化氮传感器的方法。

公开(公告)号：US07927906B2

公开(公告)日：2011-04-19

申请号：US12025517

申请日：2008-02-04

Applicant: Cornel P. Cobianu ,  Viorel-Georgel Dumitru ,  Ion Georgescu

Inventor： Cornel P. Cobianu ,  Viorel-Georgel Dumitru ,  Ion Georgescu

IPC: H01L21/00

CPC classification number: G01L9/0098 ,  B81C1/00333 ,  B81C1/00873 ,  B81C2203/0118 ,  G01K1/08 ,  G01P1/023 ,  G01P15/0802 ,  G01P15/0891 ,  G01P15/124 ,  H01L23/10 ,  H01L29/513 ,  H01L29/515 ,  H01L29/78 ,  H01L2924/0002 ,  H01L2924/01079 ,  H01L2924/13091 ,  H01L2924/00

Abstract: Apparatus, methods, and systems for bonding a cover wafer to a MEMS threshold sensors located on a silicon disc. The cover wafer is trenched to form a region when bonded to the silicon wafer that produces a gap over the contact bond pads of the MEMS threshold sensor. The method includes a series of cuts that remove part of the cover wafer over the trenches to permit additional cuts that may avoid the contact bond pads of the MEMS threshold sensor. In addition the glass frit provides for isolation of the sensor with a hermetic seal. The cavity between the MEMS threshold sensor and the cover wafer may be injected with a gas such as nitrogen to influence the properties of the MEMS threshold sensor. The MEMS threshold sensor may be utilized to sense a threshold for pressure, temperature or acceleration.

Abstract translation: 用于将覆盖晶片接合到位于硅盘上的MEMS阈值传感器的装置，方法和系统。 覆盖晶片被沟槽化以在与硅晶片接合时形成区域，该区域在MEMS阈值传感器的接触焊盘上产生间隙。 该方法包括一系列切口，其移除沟槽上的覆盖晶片的一部分以允许可避免MEMS阈值传感器的接触焊盘的额外切口。 此外，玻璃料提供具有气密密封的传感器的隔离。 MEMS阈值传感器和盖晶片之间的空腔可以注入诸如氮气的气体以影响MEMS阈值传感器的性质。 可以使用MEMS阈值传感器来感测压力，温度或加速度的阈值。