摘要:
This invention is to provide a nanodevice, which is combined with an electronic device such as a diode, tunnel device and MOS transistor, integrated circuit and manufacturing method of the nanodevice. A nanodevice includes: a first insulating layer 2; one electrode 5A and the other electrode 5B provided to have a nanogap on the first insulating layer 2; a metal nanoparticle or a functional molecule provided between the one electrode 5A and the other electrode 5B; a second insulating layer 8 provided on the first insulating layer 2, and on the one electrode 5A and the other electrode 5B to embed the metal nanoparticle or the functional molecule. The second insulating layer works as a passivating layer.
摘要:
This invention describes a method of building complementary logic circuits using junction field effect transistors in silicon. This invention is ideally suited for deep submicron dimensions, preferably below 65 nm. The basis of this invention is a complementary Junction Field Effect Transistor which is operated in the enhancement mode. The speed-power performance of the JFETs becomes comparable with the CMOS devices at sub-70 nanometer dimensions. However, the maximum power supply voltage for the JFETs is still limited to below the built-in potential (a diode drop). To satisfy certain applications which require interface to an external circuit driven to higher voltage levels, this invention includes the structures and methods to build CMOS devices on the same substrate as the JFET devices.
摘要:
A semiconductor device comprising: a semiconductor substrate (10), a dielectric film (18) formed on the semiconductor substrate, a first electrode (2) and a second electrode (3) separated from each other on the dielectric film; a spiral thin film layer (6) having both ends connected to the first electrode and the second electrode, respectively, the spiral thin film layer surrounding the first electrode, the thin film layer being formed on the dielectric layer, and a plurality (51) of p-n diodes (4,5) such as Zener diodes formed in series in the spiral thin film layer along a longitudinal direction of the spiral thin film layer to provide a uniform potential distribution in the spiral thin film layer.
摘要:
Le procédé décrit, qui sert à faire croître une couche épitaxiale d'un matériau semiconducteur constitué par un composé de groupe III-V, qui contient de l'oxygène, consiste à utiliser une source de molécules d'un composé organique qui contient un élément de groupe V et de l'oxygène dans la molécule, puis à décomposer les molécules du composé organique pour libérer l'élément de groupe V et l'oxygène.
摘要:
An integrated device including one or more device drivers and a diffractive light modulator monolithically coupled to the one or more driver circuits. The one or more driver circuits are configured to process received control signals and to transmit the processed control signals to the diffractive light modulator. A method of fabricating the integrated device preferably comprises fabricating a front-end portion for each of a plurality of transistors, isolating the front-end portions of the plurality of transistors, fabricating a front-end portion of a diffractive light modulator, isolating the front-end portion of the diffractive light modulator, fabricating interconnects for the plurality of transistors, applying an open array mask and wet etch to access the diffractive light modulator, and fabricating a back-end portion of the diffractive light modulator, thereby monolithically coupling the diffractive light modulator and the plurality of transistors.
摘要:
An EEPROM cell is formed in an IC chip by using only three masking steps in addition to those required for the basic CMOS transistors in the chip. A first mask layer is used to define source/drain regions of select and memory transistors within the EEPROM cell; a second mask layer is used to define a tunneling region of the memory transistor;and a third mask layer is used to define a floating gate of the memory transistor and a gate of the select transistor. A control gate of the memory transistor is formed using the same mask that is used to define the gates of the CMOS transistors. The third and fourth mask layers may also be used to form the lower and upper electrodes, respectively, of a capacitor.
摘要:
The device, an IGBT, is formed on a chip (9) of silicon consisting of a P type substrate (10) with an N type epitaxial layer (11) which contains a first P type region (13) and a termination structure. This structure comprises a first P type termination region (14) which surrounds the first region (13), a first electrode (18) in contact with the first termination region (14) and a second electrode (21) shaped in the form of a frame close to the edge of the chip and connected to a third electrode (17) in contact with the bottom of the chip. A fourth electrode made in one piece with the first electrode (18) is in contact with the first region (13). To produce an integrated diode with good electrical characteristics connected in reverse conduction between the power terminals of the IGBT, the termination structure also comprises a fifth electrode (30), in contact with the epitaxial layer (11) along a path parallel to the edge of the first termination region (14), connected to the second electrode (21), a second P type termination region (32) which surrounds the fifth electrode (30) and a sixth electrode (33), in contact with the second termination region (32), connected to the first electrode (18).
摘要:
A semiconductor device which comprises a semi-insulating substrate (1) and a plurality of field effect transistors (FETs) formed on the semi-insulating substrate (1). An epitaxial layer (2)of one conductivity type is formed on the semi-insulating substrate by a crystal growth technique which is capable of controlling a film thickness at an atomic level. At least some of channel active layers of the FETs have different threshold voltages one another due to a difference in thickness of the epitaxial layer (2) and/or due to an additional ion implantation region selectively formed in the epitaxial layer (2). A manufacturing method of the semiconductor device is also disclosed, wherein a portion of the epitaxial layer (2) corresponding to the channel active layer of a FET is thickened by the repetition of an epitaxial growth, thinned by the etching of the epitaxial layer or ion implanted thereby obtaining a different threshold voltage from that of another FET.