Abstract:
A semiconductor structure suitable for micro-transfer printing comprises a semiconductor substrate and a patterned insulation layer disposed on or over the semiconductor substrate. The insulation layer pattern forms one or more etch vias in contact with the semiconductor substrate. In some embodiments, each etch via is exposed. A semiconductor device is disposed on the patterned insulation layer and is surrounded by an isolation material in one or more isolation vias that are adjacent to the etch via. The etch via can be at least partially filled with a semiconductor material that is etchable with a common etchant as the semiconductor substrate. In some embodiments, the etch via is empty and the semiconductor substrate is patterned to forma gap that separates at least a part of the semiconductor device from the semiconductor substrate and forms a tether physically connecting the semiconductor device to an anchor (e.g., a portion of the semiconductor substrate or the patterned insulation layer).
Abstract:
A semiconductor structure suitable for micro-transfer printing comprises a semiconductor substrate and a patterned insulation layer disposed on or over the semiconductor substrate. The insulation layer pattern forms one or more etch vias in contact with the semiconductor substrate. In some embodiments, each etch via is exposed. A semiconductor device is disposed on the patterned insulation layer and is surrounded by an isolation material in one or more isolation vias that are adjacent to the etch via. The etch via can be at least partially filled with a semiconductor material that is etchable with a common etchant as the semiconductor substrate. In some embodiments, the etch via is empty and the semiconductor substrate is patterned to forma gap that separates at least a part of the semiconductor device from the semiconductor substrate and forms a tether physically connecting the semiconductor device to an anchor (e.g., a portion of the semiconductor substrate or the patterned insulation layer).
Abstract:
A semiconductor device including a p or p+ doped portion and an n or n+ doped portion separated from the p or p+ doped portion by a semiconductor drift portion. The device further includes at least one termination portion provided adjacent to the drift portion. The at least one termination portion comprises a Super Junction structure.
Abstract:
A CMOS or bipolar based Ion Sensitive Field Effect Transistor (ISFET) comprising an ion sensitive recess for holding a liquid wherein the recess is formed at least partly on top of a gate of the transistor. There is also provided a method of manufacturing an I on Sensitive Field Effect Transistor (ISFET) utilising CMOS processing steps, the method comprising forming an ion sensitive recess for holding a liquid at least partly on top of a gate of the transistor.
Abstract:
An at least partially conductive element, for example a poly silicon ring, is provided over the base emitter junction of a bipolar junction transistor. When the at least partially conductive element is charged the recombination current is reduced in regions of the base adjacent to the element. This results in improved linearity of the gain of the transistor.
Abstract:
The present invention provides semiconductor devices and methods for fabricating the same, in which superior dielectric termination of drift regions is accomplished by a plurality of intersecting trenches with intermediate semiconductor islands. Thus, a deep trench arrangement can be achieved without being restricted by the overall width of the isolation structure.
Abstract:
A Metal Oxide Semiconductor (MOS) transistor comprising: a source; a gate; and a drain, the source, gate and drain being located in or on a well structure of a first doping polarity located in or on a substrate; wherein at least one of the source and the drain comprises a first structure comprising: a first region forming a first drift region, the first region being of a second doping polarity opposite the first doping polarity; a second region of the second doping polarity in or on the first region, the second region being a well region and having a doping concentration which is higher than the doping concentration of the first region; and a third region of the second doping polarity in or on the second region. Due to the presence of the second region the transistor may have a lower ON resistance when compared with a similar transistor which does not have the second region. The breakdown voltage may be influenced only to a small extent.
Abstract:
A transistor comprising a source region, a gate (10), a drain region (13), a gate dielectric layer (11, 12) for isolating the gate from an underlying body (14, 6), and a well region (5) at least partially extending under the gate to create a channel region, wherein the gate dielectric layer comprises a thinner portion (12) and a thicker portion (11), and wherein the thickness of the thicker portion is no more than 200nm.
Abstract:
A device comprises a substrate (22); a first MiM capacitor (10, 20, 11) disposed over the substrate; and a second MiM capacitor (10', 20', 11') disposed over the first MiM capacitor. The first MiM capacitor and the second MiM capacitor are electrically connected in parallel. The two MiM capacitors are vertically stacked one above the other. Each MiM capacitor comprises an interconnection layer (10, 10') of the CMOS process as one plate and a thinner conductive layer (11, 11') as the second plate, with an insulating layer (20, 20') disposed therebetween. This allows each MiM capacitor to be formed between two CMOS process interconnection layers. The second plate of the second MiM capacitor is substantially co-extensive with the second plate of the first MiM capacitor, and is disposed substantially directly over the second plate of the first MiM capacitor. The same mask may be used to pattern the second plate of the second MiM capacitor and the second plate of the first MiM capacitor. This minimises the number of masks required, and so minimises the mask investment cost.
Abstract:
Es werden Verfahren und Mikrosysteme für eine vertikale Durchkontaktierung (6) von Deckscheiben (5) für mikrosystemtechnische Komponenten (2, 2a) mittels eines leitfähigen Glaslotes (8) beschrieben, mit denen Vereinfachungen bei der Durchkontaktierung (6) erreicht werden. Die Fehlerquote sinkt. Die Zuverlässigkeit steigt.