摘要:
A semiconductor device having multi-layered structure is disclosed. The semiconductor device comprises a first semiconductor layer, a second semiconductor layer, a beryllium oxide (BeO) film for insulating between the first and second semiconductor layers, wherein at least one of the semiconductor layers is grown on the BeO film to be regulated by the crystalline structure of the beryllium oxide.
摘要:
An energy conversion element is disclosed which is capable of efficiently converting light and thermal energies into electrical energy. The element comprises a thermoelectric material and a photoelectric material which are different in type and joined together and is capable of efficiently converting solar energy incident on the junction between the both materials into electrical energy. The thermoelectric material is most suitably formed of a transition element-silicon compound.
摘要:
A method of coating which comprises the steps of separately vaporizing a plurality of substances containing the component elements of a desired compound and placed in a plurality of crucibles to form vapors of the substances, mixing the vapors in a heated mixing chamber to form a mixed vapor, jetting the mixed vapor into a vacuum region to form clusters, ionizing the clusters to form cluster ions, and accelerating the cluster ions to make them impinge on a substrate.An apparatus for coating which comprises a plurality of crucibles for separately vaporizing substances containing the component elements of a desired compound to form vapors of the substances, a mixing chamber for heating and mixing the vapors introduced therein to form a mixed vapor, the mixing chamber having at least one injection hole for jetting the mixed vapor into a vacuum region, communication pipes for connecting the mixing chamber to the crucibles, an ionization chamber for ionizing clusters produced from the mixed vapor jetted from the mixing chamber, means for accelerating cluster ions produced in the ionization chamber and making them impinge on a substrate, and a substrate holder for holding the substrate.
摘要:
An apparatus for forming compound semiconductors, which has a plurality of closed type crucibles for separately holding and vaporizing the component elements of a desired compound semiconductor thin-film, the crucibles each having at least one injection nozzle, a plurality of temperature control sections for separately controlling vapor pressures inside the crucibles so that the vapors jetted from the injection nozzles of the crucibles may form clusters, a plurality of ionization chambers provided in the vicinity of the injection nozzles of the crucibles respectively for ionizing the clusters, and acceleration power supplies provided between a substrate and the ionization chambers for giving kinetic energy to the cluster ions to make them impinge on the surface of the substrate so as to form a thin film thereon.
摘要:
A p-n junction type solid-state element having at least a pair of p-n junction type semiconductor layers formed of a p-type semiconductor and an n-type semiconductor joined with each other and a method of producing the same, in which the p-type semiconductor and n-type semiconductor are formed and joined by forming at least one of the semiconductors using what is called the ionized-cluster-beam deposition process which evaporates a material to be deposited to form a vapor, injects the vapor into a vacuum region to form clusters of atoms, ionizes the clusters and electrically accelerates ionized clusters onto a substrate thereby forming a layer thereon.
摘要:
The present ion source called "Vaporized-Metal Cluster Ion Source" is adapted to produce ionized vapor aggregate (ionized cluster) instead of atomic or molecular ions in conventional ion sources. Clusters consisting of 10.sup.2 -10.sup.3 atoms are formed by the adiabatic expansion due to the ejection into a high vacuum region through a nozzle of a heated crucible and ionized by electron bombardment. By "Ionized-Cluster Beam Deposition" using the ion source, fine-quality deposited films of many kinds of materials can be obtained on metal, semiconductor and insulator substrate with strong adhesion and with a fairly high deposition rate.
摘要:
An optical control element is disclosed which is capable of accomplishing the simplifying, small-sizing and lightening of the structure. The optical control element comprises a substrate exhibiting both an optical function and a magnetic function and a Cd.sub.1-x Mn.sub.x Te directly deposited on the substrate.
摘要:
An ion emmisive head for fusing a metal to emit ion beam is disclosed, wherein a fused metal is designed to infiltrate through a porous portion for flow control and to reach an extremely sharpened needle which is provided after infiltration and wherefrom the fused metal is converted to ion beam by electrical action. Thus, ionized metallic beam is rendered to have smaller width or more focused ray. Submicron technology used in the IC industry, for instance, desires far thinner, finer beam line to attain more compact circuits, which need will be responded in the present invention by disposing a tipping needle to extend out of a porous tip portion which receives the fused metal from melting zone. Appropriate combination of sharpness at the needle point and provision of a beam guiding electrode in neighborhood of an emitting needle point enable to produce about 0.1 micron beam width by prevention of plasma ball which will otherwise diffuse the emitted beam.
摘要:
A process for preparing an organic film comprising the steps of ejecting an organic material in a gaseous state from an injection nozzle into a vacuum region to form clusters due to adiabatic expansion, subjecting the clusters to an intermediate state necessary for forming polymers due to abstraction and the like occurring in a part of atoms forming the clusters, and effecting polymerization reaction of the clusters on a substrate, thereby to form a dense organic film of a high quality and a high bonding strength.
摘要:
A process for forming an amorphous silicon film consisting of silicon (Si) and hydrogen (H) bonded in a monohydride state by a cluster ion beam deposition which comprises the step of impinging ionized and non-ionized silicon (Si) and hydrogen (H) upon a substrate within a vacuum chamber in which hydrogen is maintained at a pressure of about 10.sup.-2 Torr or less.