摘要:
A power semiconductor device is provided in which reliability can be improved when the parallel number of semiconductor devices increases. When a bonding face on collector electrode is on an upper side, and a bonding face on emitter electrode is on a lower side, a collector electrode joint region as a joint region between a collector trace and a collector electrode on a chip mounted substrate and an emitter electrode joint region as a joint region between an emitter trace and an emitter electrode are located at a same position in an up-and-down direction and are adjacent in a right-and-left direction at an interval of 2 mm or more and 4 mm or less.
摘要:
A transistor includes a semiconductor layer and a gate structure located on the semiconductor layer. The gate structure includes a first dielectric layer. The first dielectric layer includes a doped region and an undoped region below the doped region. A second dielectric layer is located on the first dielectric layer, and a first metal nitride layer is located on the second dielectric layer. The doped region of the first dielectric layer comprises dopants from the second dielectric layer. Source and drain regions in the semiconductor layer are located on opposite sides of the gate structure.
摘要:
Embodiments relate to a field-effect transistor (FET) replacement gate apparatus. The apparatus includes a channel structure including a base and side walls defining a trench. A high-dielectric constant (high-k) layer is formed on the base and side walls of the trench. The high-k layer has an upper surface conforming to a shape of the trench. A first layer is formed on the high-k layer and conforms to the shape of the trench. The first layer includes an aluminum-free metal nitride. A second layer is formed on the first layer and conforms to the shape of the trench. The second layer includes aluminum and at least one other metal. A third layer is formed on the second layer and conforms to the shape of the trench. The third layer includes aluminum-free metal nitride.
摘要:
Methods for polishing multiple dielectric layers to form replacement metal gate structures include a first chemical mechanical polish step to remove overburden and planarize a top layer to leave a planarized thickness over a gate structure. A second chemical mechanical polish step includes removal of the thickness to expose an underlying covered surface of a dielectric of the gate structure with a slurry configured to polish the top layer and the underlying covered surface substantially equally to accomplish a planar topography. A third chemical mechanical polish step is employed to remove the dielectric of the gate structure and expose a gate conductor.
摘要:
A solid-state imaging device having a light-receiving section that photoelectrically converts incident light includes an insulating film formed on a light-receiving surface of the light-receiving section and a film and having negative fixed charges formed on the insulating film. A hole accumulation layer is formed on a light-receiving surface side of the light-receiving section. A peripheral circuit section in which peripheral circuits are formed is provided on a side of the light-receiving section. The insulating film is formed between a surface of the peripheral circuit section and the film having negative fixed charges such that a distance from the surface of the peripheral circuit section to the film having negative fixed charges is larger than a distance from a surface of the light-receiving section to the film having negative fixed charges.
摘要:
A disposable gate structure and a gate spacer are formed on a semiconductor substrate. A disposable gate material portion is removed and a high dielectric constant (high-k) gate dielectric layer and a metal nitride layer are formed in a gate cavity and over a planarization dielectric layer. The exposed surface portion of the metal nitride layer is converted into a metal oxynitride by a surface oxidation process that employs exposure to ozonated water or an oxidant-including solution. A conductive gate fill material is deposited in the gate cavity and planarized to provide a metal gate structure. Oxygen in the metal oxynitride diffuses, during a subsequent anneal process, into a high-k gate dielectric underneath to lower and stabilize the work function of the metal gate without significant change in the effective oxide thickness (EOT) of the high-k gate dielectric.
摘要:
Disclosed is a process for efficiently producing pyripyropene derivatives having acyloxy at the 1-position and 11-position and hydroxyl at the 7-position. The process comprises selectively acylating hydroxyl at the 1-position and 11-position of a compound represented by formula B1 through one to three steps with an acylating agent in the presence or absence of a base.
摘要:
2-Ethenylthio-type carbapenem derivatives of formula (I) or pharmaceutically acceptable salts thereof are provided. The compounds according to the present invention have potent antimicrobial activity and a wide antimicrobial spectrum against pneumococci including penicillin resistant Streptococcus pneumoniae (PRSP), Haemophilus influenzae including β-lactamase-negative, ampicillin-resistant Haemophilus influenzae (BLNAR), and Moraxella (Branhamella) catarrhalis.
摘要:
A process for producing compound C represented by formula C is disclosed: wherein R′ represents substituent groups as described herein. The process can produce pyripyropene derivatives that have acyloxy groups at the 1- and 11-positions and a hydroxyl group at the 7-position and are useful as insect pest control agents at a high yield.
摘要:
Devices and methods for device fabrication include forming a gate structure with a sacrificial material. Silicided regions are formed on source/drain regions adjacent to the gate structure or formed at the bottom of trench contacts within source/drain areas. The source/drain regions or the silicided regions are processed to build resistance to subsequent thermal processing and adjust Schottky barrier height and thus reduce contact resistance. Metal contacts are formed in contact with the silicided regions. The sacrificial material is removed and replaced with a replacement conductor.