摘要:
On a surface of a semiconductor substrate, a plurality of terraces formed stepwise by an atomic step are formed in the substantially same direction. Using the semiconductor substrate, a MOS transistor is formed so that no step exists in a carrier traveling direction (source-drain direction).
摘要:
In a semiconductor device, the degree of flatness of 0.3 nm or less in terms of a peak-to-valley (P-V) value is realized by rinsing a silicon surface with hydrogen-added ultrapure water in a light-screened state and in a nitrogen atmosphere and a contact resistance of 10−11 Ωcm2 or less is realized by setting a work function difference of 0.2 eV or less between an electrode and the silicon. Thus, the semiconductor device can operate on a frequency of 10 GHz or higher.
摘要:
An accumulation mode transistor has an impurity concentration of a semiconductor layer in a channel region at a value higher than 2×1017 cm−3 to achieve a large gate voltage swing.
摘要:
By hydrogen-terminating a semiconductor surface using a solution containing HF2− ions and an oxidant, the hydrogen termination can be quickly carried out. In this case, the semiconductor surface is silicon having a (111) surface, a (110) surface, or a (551) surface.
摘要:
An organic EL light emitting element is provided with a conductive transparent electrode 3, a counter electrode 8 opposing the conductive transparent electrode 3, an organic EL light emitting layer 6 provided between the conductive transparent electrode 3 and the counter electrode 8, an insulating protection layer 9 provided to cover at least the organic EL light emitting layer 6, and a heat dissipating layer 11 which is brought into contact with the insulating protection layer 9. The conductive transparent electrode has an ITO film including at least one of Hf, V and Zr at least on the surface part on the side of the organic EL light emitting layer 6, and the insulating protection layer 9 includes a nitride film having a thickness of 100 nm or less.
摘要:
In one embodiment of the present invention, a power IC device is disclosed containing a power MOS transistor with a low ON resistance and a surface channel MOS transistor with a high operation speed. There is also provided a method of manufacturing such a device. A chip has a surface of which the planar direction is not less than −8° and not more than +8° off a silicon crystal face. The p-channel trench power MOS transistor includes a trench formed vertically from the surface of the chip, a gate region in the trench, an inversion channel region on a side wall of the trench, a source region in a surface layer of the chip, and a drain region in a back surface layer of the chip. The surface channel MOS transistor has an inversion channel region fabricated so that an inversion channel current flows in a direction not less than −8° and not more than +8° off the silicon crystal direction.
摘要:
A cause of deteriorating the hydrogen termination on the surface of a wafer is found to be water adsorbed on the surface. By exposing the wafer to an inert gas atmosphere containing an H2 gas so as to suppress the oxidation reaction due to the water, it is possible to improve the hydrogen termination on the wafer surface.
摘要:
In a semiconductor device, the degree of flatness of 0.3 nm or less in terms of a peak-to-valley (P-V) value is realized by rinsing a silicon surface with hydrogen-added ultrapure water in a light-screened state and in a nitrogen atmosphere and a contact resistance of 10−11 Ωcm2 or less is realized by setting a work function difference of 0.2 eV or less between an electrode and the silicon. Thus, the semiconductor device can operate on a frequency of 10 GHz or higher.
摘要:
A silicon carbide substrate has a high-frequency loss equal to or less than 2.0 dB/mm at 20 GHz is effective to mount and operate electronic components. The silicon carbide substrate is heated at 2000° C. or more to be reduced to the high-frequency loss equal to 2.0 dB/mm or less at 20 GHz. Moreover, manufacturing the silicon carbide substrate by CVD without flowing nitrogen into a heater enables the high-frequency loss to be reduced to 2.0 dB/mm or less.
摘要:
The present invention has been made in order to manufacture a silicon semiconductor substrate used for a semiconductor integrated circuit device, higher in carrier mobility, especially in electron mobility, which is a carrier of an n-type FET, on a {100} plane as a main surface, and provides a silicon semiconductor substrate and a method for manufacturing the same, wherein the conventional RCA cleaning is employed without the use of special cleaning and the surface of the substrate is planarized at an atomic level to thereby decrease the surface roughness thereof without the use of the radical oxidation. The present invention provides a silicon semiconductor substrate comprising: a {110} plane or a plane inclined from a {110} plane as a main surface of the substrate; and steps arranged at an atomic level along a orientation on the main surface.