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    • 2. 发明授权
    • Semiconductor device having ohmic recessed electrode
    • 具有欧姆凹陷电极的半导体器件
    • US07601993B2
    • 2009-10-13
    • US11636430
    • 2006-12-11
    • Shinichi HoshiMasanori Itoh
    • Shinichi HoshiMasanori Itoh
    • H01L31/072
    • H01L29/7787H01L21/28587H01L29/1608H01L29/2003H01L29/41766H01L29/66462
    • The present invention provides a semiconductor device having a recess-structured ohmic electrode, in which the resistance is small and variation in the resistance value caused by manufacturing irregularities is small. In the semiconductor device of the present invention, a two-dimensional electron gas layer is formed on the interface between a channel-forming layer and a Schottky layer by electrons supplied from the Schottky layer. The ohmic electrode comprises a plurality of side faces in ohmic contact with the two-dimensional electron gas layer. At least a part of side faces of the ohmic electrodes are non-parallel to a channel width direction. In a preferred embodiment of the present invention, the side faces have a saw tooth form or a comb tooth form. Since the contact area between the ohmic electrode and the two-dimensional electron gas layer is increased, ohmic resistance is reduced.
    • 本发明提供一种具有凹陷结构的欧姆电极的半导体器件,其中电阻小,并且由制造不规则性引起的电阻值的变化小。 在本发明的半导体器件中,通过从肖特基层提供的电子,在沟道形成层和肖特基层之间的界面上形成二维电子气层。 欧姆电极包括与二维电子气体层欧姆接触的多个侧面。 欧姆电极的至少一部分侧面不平行于沟道宽度方向。 在本发明的优选实施例中,侧面具有锯齿形或梳齿形。 由于欧姆电极和二维电子气体层之间的接触面积增加,所以欧姆电阻降低。
    • 5. 发明授权
    • Method for manufacturing a field effect transistor having a field plate
    • 具有场板的场效应晶体管的制造方法
    • US07811872B2
    • 2010-10-12
    • US12149823
    • 2008-05-08
    • Shinichi HoshiMasanori ItohHideyuki OkitaToshiharu Marui
    • Shinichi HoshiMasanori ItohHideyuki OkitaToshiharu Marui
    • H01L21/338
    • H01L29/42316H01L29/2003H01L29/402H01L29/66462H01L29/7787
    • An opening for forming a gate electrode is provided by a first photoresist pattern formed on an insulating film. Reactive ion etching by inductively coupled plasma is applied to the insulating film through the first photoresist pattern as a mask to thereby expose the surface of a GaN semiconductor layer, evaporating thereon a gate metal such as NiAu, thereby forming the gate electrode by self-aligned process. This prevents an oxidized film from being formed on the surface of the semiconductor layer. After the gate electrode is formed, a second photoresist pattern is formed to form a field plate on the gate electrode and the insulating film through the second photoresist pattern as a mask. Thereby, Ti having a high adhesiveness with an insulating film made of SiN or the like can be used as a field plate metal.
    • 用于形成栅电极的开口由形成在绝缘膜上的第一光致抗蚀剂图案提供。 通过电感耦合等离子体的反应离子蚀刻通过第一光致抗蚀剂图案作为掩模施加到绝缘膜,从而暴露GaN半导体层的表面,在其上蒸发诸如NiAu的栅极金属,由此通过自对准形成栅极电极 处理。 这防止在半导体层的表面上形成氧化膜。 在形成栅电极之后,形成第二光致抗蚀剂图案,以通过第二光致抗蚀剂图案作为掩模在栅电极和绝缘膜上形成场板。 由此,可以使用与由SiN等制成的绝缘膜具有高粘接性的Ti作为场板金属。
    • 6. 发明申请
    • Semiconductor device having ohmic recessed electrode
    • 具有欧姆凹陷电极的半导体器件
    • US20070132037A1
    • 2007-06-14
    • US11636430
    • 2006-12-11
    • Shinichi HoshiMasanori Itoh
    • Shinichi HoshiMasanori Itoh
    • H01L29/76
    • H01L29/7787H01L21/28587H01L29/1608H01L29/2003H01L29/41766H01L29/66462
    • The present invention provides a semiconductor device having a recess-structured ohmic electrode, in which the resistance is small and variation in the resistance value caused by manufacturing irregularities is small. In the semiconductor device of the present invention, a two-dimensional electron gas layer is formed on the interface between a channel-forming layer and a Schottky layer by electrons supplied from the Schottky layer. The ohmic electrode comprises a plurality of side faces in ohmic contact with the two-dimensional electron gas layer. At least a part of side faces of the ohmic electrodes are non-parallel to a channel width direction. In a preferred embodiment of the present invention, the side faces have a saw tooth form or a comb tooth form. Since the contact area between the ohmic electrode and the two-dimensional electron gas layer is increased, ohmic resistance is reduced.
    • 本发明提供一种具有凹陷结构的欧姆电极的半导体器件,其中电阻小,并且由制造不规则性引起的电阻值的变化小。 在本发明的半导体器件中,通过从肖特基层提供的电子,在沟道形成层和肖特基层之间的界面上形成二维电子气层。 欧姆电极包括与二维电子气体层欧姆接触的多个侧面。 欧姆电极的至少一部分侧面不平行于沟道宽度方向。 在本发明的优选实施例中,侧面具有锯齿形或梳齿形。 由于欧姆电极和二维电子气体层之间的接触面积增加,所以欧姆电阻降低。
    • 7. 发明申请
    • SEMICONDUCTOR DEVICE HAVING OHMIC RECESSED ELECTRODE
    • 具有OHMIC电极的半导体器件
    • US20090315122A1
    • 2009-12-24
    • US12549860
    • 2009-08-28
    • Shinichi HoshiMasanori Itoh
    • Shinichi HoshiMasanori Itoh
    • H01L29/778
    • H01L29/7787H01L21/28587H01L29/1608H01L29/2003H01L29/41766H01L29/66462
    • The present invention provides a semiconductor device having a recess-structured ohmic electrode, in which the resistance is small and variation in the resistance value caused by manufacturing irregularities is small. In the semiconductor device of the present invention, a two-dimensional electron gas layer is formed on the interface between a channel-forming layer and a Schottky layer by electrons supplied from the Schottky layer. The ohmic electrode comprises a plurality of side faces in ohmic contact with the two-dimensional electron gas layer. At least a part of side faces of the ohmic electrodes are non-parallel to a channel width direction. In a preferred embodiment of the present invention, the side faces have a saw tooth form or a comb tooth form. Since the contact area between the ohmic electrode and the two-dimensional electron gas layer is increased, ohmic resistance is reduced.
    • 本发明提供一种具有凹陷结构的欧姆电极的半导体器件,其中电阻小,并且由制造不规则性引起的电阻值的变化小。 在本发明的半导体器件中,通过从肖特基层提供的电子,在沟道形成层和肖特基层之间的界面上形成二维电子气层。 欧姆电极包括与二维电子气体层欧姆接触的多个侧面。 欧姆电极的至少一部分侧面不平行于沟道宽度方向。 在本发明的优选实施例中,侧面具有锯齿形或梳齿形。 由于欧姆电极和二维电子气体层之间的接触面积增加,所以欧姆电阻降低。
    • 10. 发明申请
    • LUMINESCENT COMPOSITION AND INORGANIC ELECTROLUMINESCENT SHEET USING THE SAME
    • 使用其的发光组合物和无机电致发光片
    • US20110068681A1
    • 2011-03-24
    • US12993610
    • 2009-05-18
    • Satoshi NaganawaTakashi MoriokaNaoki TayaTakeshi KondoKazue SaitoYuko IwamotoShinichi HoshiYumiko Matsubayashi
    • Satoshi NaganawaTakashi MoriokaNaoki TayaTakeshi KondoKazue SaitoYuko IwamotoShinichi HoshiYumiko Matsubayashi
    • H01J1/62C09K11/02B32B7/12
    • H05B33/10C09K11/02C09K11/584H05B33/14H05B33/20
    • The present invention provides a luminescent composition which is capable of providing an inorganic electroluminescent sheet with a high productivity at low costs in an efficient manner, and has a desired light transmittance (transparency) when no electric voltage is applied thereto, an inorganic electroluminescent sheet obtained from the luminescent composition which can be mass-produced, and a process for producing the inorganic electroluminescent sheet. The present invention relates to a luminescent composition including an inorganic electroluminescent substance and a binder resin, wherein a content of the inorganic electroluminescent substance is not less than 0.5 part by mass and less than 100 parts by mass on the basis of 100 parts by mass of the binder resin; and an inorganic electroluminescent sheet including at least a first transparent substrate, a first transparent electrode, an inorganic electroluminescent layer, a first transparent electrode and a second transparent substrate which are successively laminated in this order, wherein the inorganic electroluminescent layer is formed from the above luminescent composition, and the inorganic electroluminescent sheet has a light transmittance of 60% or more as measured at a wavelength of 550 nm under a non-light emitting condition.
    • 本发明提供一种发光组合物,其能够以低成本有效地提供高生产率的无机电致发光片,并且当不施加电压时具有期望的透光率(透明度),获得的无机电致发光片 从可以大量生产的发光组合物和无机电致发光片的制造方法。 本发明涉及包含无机电致发光物质和粘合剂树脂的发光组合物,其中无机电致发光物质的含量不小于0.5质量份且小于100质量份,基于100质量份 粘合剂树脂; 以及至少包括依次层叠的第一透明基板,第一透明电极,无机电致发光层,第一透明电极和第二透明基板的无机电致发光片,其中无机电致发光层由上述形成 发光组合物,无机电致发光片在非发光条件下的波长550nm下的透光率为60%以上。