摘要:
The invention relates to a vertical integrated JBS-SiC semiconductor component, in particular to a power semiconductor component, comprising a high-doped SiC semiconductor body of a first conductivity type, a low-doped drift area of the first conductivity type, which is located on said semiconductor body on a transmitter side and which is at least partially adjacent to a first surface, at least one emitter area of a second conductivity type, which is integrated into the drift area on the first surface side and is adjacent thereto, an intermediate layer of the first conductivity type which is arranged in the drift area, at a distance from the emitter areas, laterally crosses the entire drift area and whose dopant concentration is greater than that of the drift area.
摘要:
A reaction chamber (2) is surrounded by a gas-tight wall (20) of which at least the inner side (21) that faces the reaction chamber (2) is made of silicon carbide produced by a CVD process. At least part of the silicon carbide that constitutes the wall (20) is sublimated and grown as a silicon carbide monocrystal (4) on a crystal seed (3).
摘要:
A magnetic storage device comprises a magnetizable storage disk, a write/read magnetic head arranged on a floating element, and a tracker system. This system comprises a servo head rigidly connected to the magnetic head and maintained on at least one guide track by electronic elements, connected downstream. The storage device is designed to ensure continuous guiding of the magnetic head. For this purpose, guide tracks (9, 10) are inscribed separately on the storage disk (2) along data tracks (40) each of which contains two parallel half-tracks (9a, 9b; 10a, 10b) with antiparallel magnetization directions (13a, 13b). The servo head (20) is arranged on the flat posterior side of the floating element and contains a magnetoresistive sensor (26) which is coupled magnetically to two magnet arms (22, 23) connected to at least one guide track (9, 10).
摘要:
The invention relates to an integrated vertical SiC-PN power diode comprising a highly doped SiC semiconductor body of a first conductivity type, a low-doped drift zone of said first conductivity type, arranged above the semiconductor body on the emitter side, an emitter zone of a second conductivity type, applied to the drift zone, and at least one thin intermediate layer of said first conductivity type, said intermediate layer being arranged inside the drift zone, comprising a higher doping concentration than the drift zone, and dividing the drift zone into at least one first anode-side drift zone layer and at least one second cathode-side drift zone layer. The invention also relates to a circuit arrangement comprising such SiC-PN power diodes.
摘要:
Dioden mit Avalanche-Verhalten sind bekannt. Gemäss der Erfin- dung sind insbesondere zur Realisierung einer pn-Diode in ei- ner dünnen Schicht unter der p-Anode (2) gebietsweise Berei- che (12 ik , i=1-m, k=1-n) vorhanden, in denen die Konzentrati- 10 on der n-Dotierung über der Konzentration der n-Dotierung der epitaktischen Schicht (11) liegt. Zur Herstellung eines sol- chen Bauelementes werden Epitaxie- und/oder Implantationsme- thoden angewandt.
摘要:
The semiconductor arrangement comprises a lateral channel region (22) and an adjacent vertical channel region (29) in a first n-conductive semiconductor region. Both channel regions are bounded by the depletion zone (23) of a p-n transition formed between the first semiconductor region (2) and a p-conductive second semiconductor region buried in the first.
摘要:
A thin-film head (2) contains a conductor of magnetic flux similar to an annular head with two magnetic arms (6, 7), which is partially embedded in a depression (12) in a non-magnetic substrate. Each arm (6, 7) has a magnetic layer (6a and 7a, respectively), which forms a magnetic pole (P1 and P2, respectively) at a pole point (8 and 9, respectively), and a magnetic amplification layer (6b and 7b, respectively). This magnetic head should be easy to manufacture and should allow high magnetic flux densities in its conductor. To this end, only the amplification layer (6b) in the magnetic arm (6) facing the substrate (12) is arranged in the depression (12) in the substrate (3) in such a way that its surface (13) lies in the same plane (E) as the surface (14) of the substrate.
摘要:
Die Erfindung betrifft eine integrierte vertikale SiC-PN-Leistungsdiode, mit einem hochdotierten ausgebildeten SiC-Halbleiterkörper eines ersten Leitfähigkeitstyps, mit einer niedrig dotierten Driftzone des ersten Leitfähigkeitstyps, die emitterseitig über dem Halbleiterkörper angeordnet ist, mit einer Emitterzone eines zweiten Leitfähigkeitstyps, die auf der Driftzone aufgebracht ist, und mit zumindest einer innerhalb der Driftzone angeordneten dünnen Zwischenschicht des ersten Leitfähigkeitstyps, die eine gegenüber der Driftzone höhere Dotierungskonzentration aufweist und die die Driftzone zumindest in eine erste anodenseitige Driftzonenschicht und zumindest in eine zweite katodenseitige Driftzonenschicht unterteilt. Die Erfindung betrifft ferner eine Schaltungsanordnung mit solchen SiC-PN-Leistungsdioden.
摘要:
An n or p-doped semiconductor region (2) accepts the depletion region (21) of an active section (3) of the semiconductor component with a vertical expansion depending on an applied blocking voltage. The edge termination (4) for the active region (3) takes the form of a semiconductor with the opposite doping to the semiconductor region (2) immediately adjacent to the active region (3) or in a surface (20) of the semiconductor region (2). The lateral expansion (W) of the edge termination (4) is greater than the maximum vertical expansion (T) of the depletion region (21) and the semiconductor region (2) and the edge termination (4) are formed by a semiconductor with a band spacing of at least 2 eV.
摘要:
The MIS structure contains an n-drift region (1), a base region (3) arranged on one surface of the drift region (1), an ion-implanted n source region (2) in the base region (3), a source electrode (S) short-circuiting the base (3) and source regions (2) and a gate electrode (6) to control the resistance of a channel region (32) of the base region (3) via an insulator region (5). The base region (3) is more highly doped in an ion-implanted p partial region (33) beneath the entire source region (2) than in the channel region (32).