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公开(公告)号：US6109094A
公开(公告)日：2000-08-29
申请号：US809905
申请日：1997-06-19
CPC分类号： G01N33/005 , G01N27/4141
摘要： A gas sensing device having a semiconductor substrate, wherein the semiconductor substrate is covered by an insulator layer, on which an intermediate layer is formed, and subsequently covered by a gas sensing catalytic layer, wherein the intermediate layer and the catalytic layer are made of different materials. The gas sensing device may optionally have dispersed between the insulator layer and the intermediate layer a catalytic metal layer. The gas sensing device provides improved stability and speed of response, even when used at high ambient temperatures, such as temperatures found in combustion systems. A method for making the gas sensing device is also disclosed.
摘要翻译： PCT No.PCT / SE95 / 01084 Sec。 371日期：1997年6月19日 102（e）日期1996年6月19日PCT提交1995年9月22日PCT公布。 第WO96 / 09534号公报 日期：1996年3月28日一种具有半导体衬底的气体感测装置，其中半导体衬底由绝缘体层覆盖，其上形成有中间层，并随后被气体感测催化层覆盖，其中中间层和催化剂 层由不同的材料制成。 气体感测装置可以可选地在绝缘体层和中间层之间分散有催化金属层。 气体传感装置即使在高环境温度下使用时也能提供更好的稳定性和响应速度，例如在燃烧系统中发现的温度。 还公开了一种用于制造气体感测装置的方法。
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2.发明授权Field effect transistor for chemical sensing using graphene, chemical sensor using the transistor and method for producing the transistor 有权用于使用石墨烯的化学感测的场效应晶体管，使用晶体管的化学传感器和用于制造晶体管的方法公开(公告)号：US09157888B2
公开(公告)日：2015-10-13
申请号：US14115818
申请日：2011-05-05
IPC分类号： H01L29/06 , G01N27/414
CPC分类号： G01N27/4146 , G01N27/4141 , H01L29/0673
摘要： A field effect transistor (20) for chemical sensing, comprising an electrically conducting and chemically sensitive channel (2) extending between drain (5) and source (6) electrodes. A gate electrode (7) is separated from the channel (2) by a gap (10) through which a chemical to be sensed can reach the channel (2) which comprises a continuous monocrystalline graphene layer (2a) arranged on an electrically insulating graphene layer substrate (1). The graphene layer (2a) extends between and is electrically connected to the source electrode (5) and the drain electrode (6). The substrate supports the graphene layer, allowing it to stay 2-dimensional and continuous, and enables it to be provided on a well defined surface, and be produced and added to the transistor as a separate part. This is beneficial for reproducibility and reduces the risk of damage to the graphene layer during production and after. Low detection limits with low variability between individual transistors are also enabled. There is also provided a chemical sensor (30) using the transistor (20) and a method for providing the transistor (20).
摘要翻译： 一种用于化学感测的场效应晶体管（20），包括在漏极（5）和源极（6）之间延伸的导电和化学敏感的通道（2）。 栅电极（7）通过间隙（10）与通道（2）分开，待检测的化学物质可通过该间隙（10）到达通道（2），通道（2）包括布置在电绝缘石墨烯上的连续单晶石墨烯层（2a） 层基板（1）。 石墨烯层（2a）在源电极（5）和漏电极（6）之间延伸并电连接。 衬底支撑石墨烯层，使其保持2维和连续，并使其能够在良好限定的表面上提供，并作为单独部分产生并添加到晶体管。 这有利于重现性，并降低在生产和之后石墨烯层损坏的风险。 单个晶体管之间的低可变性的低检测限也可实现。 还提供了使用晶体管（20）的化学传感器（30）和用于提供晶体管（20）的方法。
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公开(公告)号：US20110197571A1
公开(公告)日：2011-08-18
申请号：US12919566
申请日：2008-02-27
CPC分类号： G01N27/4077 , G01N15/0255
摘要： The present invention relates to a method for detecting particles and a particle sensor arrangement. More specifically, the present invention relates to a method and arrangement for detecting particles in a gas flow, e.g. from a diesel combustion engine. The method comprises the steps of; forcing a particle build up on a sensor element of a particle sensor arrangement by regulating the sensor element to a second temperature; wherein the second temperature is lower than a first temperature, the first temperature being the gas flow temperature. Additionally is the particle build up detected at the sensor element by means of a detector. The present invention provides for an accurate method and arrangement to detect and thereby measure particles present in a gas flow, e.g. from a combustion engine.
摘要翻译： 本发明涉及一种检测粒子的方法和一种粒子传感器装置。 更具体地，本发明涉及一种用于检测气流中的颗粒的方法和装置，例如， 来自柴油发动机。 该方法包括以下步骤： 通过将传感器元件调节到第二温度来迫使颗粒积聚在颗粒传感器装置的传感器元件上; 其中第二温度低于第一温度，第一温度是气体流动温度。 另外是通过检测器在传感器元件处检测到的颗粒积聚。 本发明提供了一种精确的方法和装置，用于检测和测量气流中存在的颗粒，例如， 从内燃机。
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