摘要:
A semiconductor device (10) is formed by providing first and second semiconductor bodies (1 and 11) each having first and second major surfaces (2 and 3) and (12 and 13), respectively, defining a rectifying junction pattern (21) adjacent to at least one (12) of the first major surfaces, and bonding the first major surfaces (2 and 12) together to join the two semiconductor bodies (1 and 11) to form the semiconductor device (10) in which the rectifying junction pattern 21 defines a path for the flow of charge carriers between the second major surfaces. The rectifying junction pattern (21) is defined at the one first major surface (12) by an electrically conductive pattern (20) forming a Schottky junction (21) with at least one of the first and second semiconductor bodies (1 and 11).
摘要:
A permeable base transistor (30) including a metal base layer (34) embedded in a semiconductor crystal (32) to separate collector (38) and emitter (40) regions and form a Schottky barrier with each. The metal base layer has at least one opening (37) through which the crystal semiconductor (32) joins the collector (38) and emitter (40) regions. Ohmic contacts (42, 44) are made to the emitter (40) and collector (38) regions. The width of all openings (37) in the base layer (34) is of the order of the zero bias depletion width corresponding to the carrier concentration in the opening. The thickness of the metal layer (34) is in the order of 10% if this zero bias depletion width. As a result, a potential barrier in each opening limits current flow over the lower portion of the bias range. With increasing forward base bias the potential in the openings, which is lower than along the metal of the base layer (34), is lowered sufficiently to permit substantial increase in the barrier limited current flow from the collector (38) to emitter (40). A method of fabricating this transistor as well as methods for forming integrated circuit structures are also disclosed. Metal and other layers may be selectively embedded in semiconductor crystal. Embedded metal layers may serve as interconnections between devices. Devices may be in a stacked configuration.
摘要:
Die Erfindung bezieht sich auf ein Verfahren zur Herstellung eines elektronischen Bauelementes mit n- und n⁺-dotierter oder p- und p⁺-dotierter Schicht aus halbleitendem Material (2,2a,2b) und einer Schicht aus leitfähigem Material (1), die streifengitterförmig strukturiert ist. Aufgabe der Erfindung ist es, ein Verfahren zur Herstellung eines solchen elektronischen Bauelementes zu schaffen, dessen Kapazität gegenüber herkömmlichen Bauelementen vermindert ist. Hierzu wird zunächst ein Schichtsystem gebildet, das aus einer Schicht aus Isolatormaterial (5), darauf aufgebrachter Schicht aus leitfähigem Material (1) und darauf aufgebrachter weiterer Schicht aus Isolatormaterial (5) besteht. Dieses Schichtsystem wird anschließend streifengitterförmig strukturiert und die dabei entstehenden Zwischenräume des streifengitterförmigen Schichtsystems durch selektives Wachstum mit Halbleitermaterial (2) gefüllt. Die Erfindung bezieht sich ferner auf ein elektronisches Bauelement der bezeichneten Art, das das streifengitterförmig strukturierte Schichtsystem aus aufeinanderfolgenden Schichten aus Isolatormaterial, leitfähigem Material und Isolatormaterial aufweist und bei dem die Zwischenräume des streifengitterförmigen Schichtsystems mit halbleitendem Material ausgefüllt sind.
摘要:
Un transistor a base permeable (30) comprend une couche de base metallique (34) noyee dans un cristal semi-conducteur (32) pour separer des regions collectrice (38) et emettrice (40) et former une barriere de Schottky avec chacune d'elles. La couche de base metallique possede au moins une ouverture (37) au travers de laquelle le cristal semi-conducteur (32) joint les regions collectrice (38) et emettrice (40). Des contacts ohmiques (42, 44) sont realises sur les regions emettrice (40) et collectrice (38). La largeur de toutes les ouvertures (37) dans la couche de base (34) est de l'ordre de la largeur d'appauvrissement de polarisation (0) correspondant a la concentration porteuse dans l'ouverture. L'epaisseur de la couche metallique (34) est de l'ordre de 10% de cette largeur d'appauvrissement de polarisation (0). Il en resulte qu'une barriere potentielle dans chaque ouverture limite le passage de courant sur la partie inferieure de la gamme de polarisation. En augmentant la polarisation de base en sens direct, le potentiel dans les ouvertures qui est inferieur au potentiel le long du metal de la couche de base (34) est abaisse suffisamment pour permettre une augmentation sensible du passage de courant limite par la barriere du collecteur (38) vers l'emetteur (40). Procede de fabrication de ce transistor, et methodes de formation de structures de circuits integres. Du metal et d'autres couches peuvent etre noyees de maniere selective dans un cristal semi-conducteur. Des couches metalliques noyees peuvent servir d'interconnexions entre des dispositifs. Des dispositifs peuvent avoir une configuration empilee.
摘要:
A method of manufacturing a device, preferably a semiconductor device, whereby a mask (3) with an opening (4) extending down to a bare body (1) is provided on a surface (2) of this body (1), after which a substance (5) is implanted into the body (1) through the opening (4), upon which the mask (3) is removed. According to the invention, the mask (3) is provided in that subsequently a first and a second layer (6, 7, respectively) are deposited on the surface (2) and these layers are provided with the opening (4), while the first layer (6) can be selectively removed relative to the material of the body (1) and the second layer (7) comprises the same material as the body (1). Since the same material is used for the second layer (7) as for the body (1), according to the invention, it is achieved that the body (1) is not polluted with material from the mask (3) in the opening (4) during implantation.
摘要:
Permeable Base Transistor, bei dem in eine Öffnung der Basisschicht (6) auf eine darunter befindliche Kollektorschicht (3) eine Emitterschicht (4, 5) oder Emitterschichtfolge aus einem Halbleitermaterial, das eine größere Energiebandlücke als das Halbleitermaterial der Basisschicht (6) hat, aufgewachsen ist.
摘要:
A semiconductor device includes a laterally extending semiconductor base (82, 96), a buffer (83) adjacent the base and having a first conductivity type dopant, and a laterally extending emitter (85) adjacent the buffer and opposite the base and having a second conductivity type dopant. The buffer (83) is thin and has a fist conductivity type dopant concentration greater than a second conductivity type dopant concentration in adjacent emitter portions to provide a negative temperature coefficient for current gain and a positive temperature coefficient for forward voltage for the device. The buffer may be silicon or germanium. A low temperature bonded interface (103) may be between the emitter and the buffer or the buffer and the base. Another embodiment of a device may include a laterally extending localized lifetime killing portion (92, 102) between oppositely doped first and second laterally extending portions. The localized lifetime killing portion may comprise a plurality of laterally confined and laterally space apart lifetime killing regions. Another device may include one or more PN junctions.
摘要:
The invention concerns a layered structure with a silicide layer which is formed on a silicon-containing surface. The object of the invention is to produce a layered structure of this type which can be used to manufacture structural components without incurring the disadvantages of the prior art. To this end, at least part of the silicide layer is to be disposed offset with respect to the remainder of the silicide layer in a direction perpendicular to the layer plane of this part. In this way different electronic components can be provided with a layered structure of this type.