摘要:
A method of manufacturing a semiconductor device having an insulated gate type field effect transistor. A gate insulating film, a gate electrode layer having a predetermined area and facing the semiconductor substrate with the gate insulating film being interposed therebetween, an interlayer insulating film, and a wiring layer connected to the gate electrode layer, are formed on a semiconductor substrate in the order recited. A conductive material layer and a resist layer are formed on the wiring layer. The resist layer is patterned to form a resist mask forming a wiring pattern having an antenna ratio of about ten times or more of the predetermined area of the gate electrode layer. At least the conductive material layer is plasma-etched by using the resist mask as an etching mask, and thereafter, the resist mask is removed and the wiring layer is plasma-etched.
摘要:
A method of manufacturing a semiconductor device having an insulated gate type field effect transistor. A gate insulating film, a gate electrode layer having a predetermined area and facing the semiconductor substrate with the gate insulating film being interposed therebetween, an interlayer insulating film, and a wiring layer connected to the gate electrode layer, are formed on a semiconductor substrate in the order recited. A conductive material layer and a resist layer are formed on the wiring layer. The resist layer is patterned to form a resist mask forming a wiring pattern having an antenna ratio of about ten times or more of the predetermined area of the gate electrode layer. At least the conductive material layer is plasma-etched by using the resist mask as an etching mask, and thereafter, the resist mask is removed and the wiring layer is plasma-etched.
摘要:
A pattern forming method having a step of forming an amorphous carbon film on a patterning layer formed on a substrate, a step of forming a photoresist film on the amorphous carbon film, a step of selectively exposing and developing the photoresist film to form a photoresist pattern, and a step of successively dry-etching the amorphous carbon film and the patterning layer by using the photoresist film as an etching mask. Desired optical constants of an amorphous carbon film formed by sputtering can be obtained by controlling a substrate temperature and other parameters.
摘要:
A pattern forming method having a step of forming an amorphous carbon film on a patterning layer formed on a substrate, a step of forming a photoresist film on the amorphous carbon film, a step of selectively exposing and developing the photoresist film to form a photoresist pattern, and a step of successively dry-etching the amorphous carbon film and the patterning layer by using the photoresist film as an etching mask. Desired optical constants of an amorphous carbon film formed by sputtering can be obtained by controlling a substrate temperature and other parameters.
摘要:
The technical task of the present invention is to provide a lead-free glass for semiconductor encapsulation, which is easy to automate an appearance inspection, and furthermore, has excellent refinability and encapsulatability of semiconductor devices. In the lead-free glass for semiconductor encapsulation according to the present invention, a temperature at which the viscosity of glass is 106 dPa·s is 670° C. or lower, and, as a glass composition, the content of CeO2 is from 0.01 to 6% by mass, and the content of Sb2O3 is 0.1% by mass or less.
摘要翻译:本发明的技术任务是提供一种用于半导体封装的无铅玻璃,其容易自动进行外观检查,此外,具有优异的可熔性和半导体器件的可封装性。 在本发明的半导体封装用无铅玻璃中,玻璃粘度为106dPa·s的温度为670℃以下,作为玻璃组合物,CeO 2的含量为0.01 〜6质量%,Sb 2 O 3的含量为0.1质量%以下。
摘要:
A semiconductor element including an MISFET exhibits diode characteristics in a reverse direction through an epitaxial channel layer. The semiconductor element includes: a silicon carbide semiconductor substrate of a first conductivity type, semiconductor layer of the first conductivity type, body region of a second conductivity type, source region of the first conductivity type, epitaxial channel layer in contact with the body region, source electrode, gate insulating film, gate electrode and drain electrode. If the voltage applied to the gate electrode is smaller than a threshold voltage, the semiconductor element functions as a diode wherein current flows from the source electrode to the drain electrode through the epitaxial channel layer. The absolute value of the turn-on voltage of this diode is smaller than the turn-on voltage of a body diode that is formed of the body region and the first silicon carbide semiconductor layer.
摘要:
A data center is disclosed that includes a container; a server; a rack installed within the container and storing the server; and a curtain fixed to at least one point of the rack or the container and separating an internal space of the container between a cold side and a hot side; wherein the rack is configured to enable the circulation of air from the cold side to the hot side. The curtain is fixed by a removable clamping mechanism. The data center further includes a modular refrigeration unit configured to attach to the container and direct cold air into the cold area. At least one prop is positioned below a bottom of the housing and connected to a container bottom, the prop is configured to absorb vibration of the container or housing.
摘要:
A semiconductor element 100 including an MISFET according to the present invention is characterized by having diode characteristics in a reverse direction through an epitaxial channel layer 50. The semiconductor element 100 includes a semiconductor layer 20 of a first conductivity type, a body region 30 of a second conductivity type, source and drain regions 40 and 75 of the first conductivity type, an epitaxial channel layer 50 in contact with the body region, source and drain electrodes 45 and 70, a gate insulating film 60, and a gate electrode 65. If the voltage applied to the gate electrode of the MISFET is smaller than a threshold voltage, the semiconductor element 100 functions as a diode in which current flows from the source electrode 45 to the drain electrode 70 through the epitaxial channel layer 50. The absolute value of the turn-on voltage of this diode is smaller than that of the turn-on voltage of a body diode that is formed of the body region and the first silicon carbide semiconductor layer.
摘要:
A semiconductor element 100 including an MISFET according to the present invention is characterized by having diode characteristics in a reverse direction through an epitaxial channel layer 50. The semiconductor element 100 includes a silicon carbide semiconductor substrate 10 of a first conductivity type, a semiconductor layer 20 of the first conductivity type, a body region 30 of a second conductivity type, a source region 40 of the first conductivity type, an epitaxial channel layer 50 in contact with the body region, a source electrode 45, a gate insulating film 60, a gate electrode 65 and a drain electrode 70. If the voltage applied to the gate electrode of the MISFET is smaller than a threshold voltage, the semiconductor element 100 functions as a diode in which current flows from the source electrode 45 to the drain electrode 70 through the epitaxial channel layer 50. The absolute value of the turn-on voltage of this diode is smaller than that of the turn-on voltage of a body diode that is formed of the body region and the first silicon carbide semiconductor layer.
摘要:
A semiconductor encapsulation material of the present invention contains a glass for metal coating which has a strain point of 480° C. or higher, a temperature corresponding to a viscosity of 104 dPa·s of 1,100° C. or lower, and a thermal expansion coefficient at 30 to 380° C. of 70×10−7 to 110×10−7/° C. The semiconductor encapsulation material of the present invention contains no environmentally harmful substances, has a heat resistance temperature as high as 500° C. or above, and can be used for the encapsulation of metals susceptible to oxidation, e.g., Dumet.