摘要:
An apparatus for depositing a dielectric film includes a first gas introduction line introducing and disconnect a first gas including a compound containing a constituent element of the dielectric film, to a surface of a substrate stored in a reaction chamber, and a second gas introduction line introducing and disconnect a second gas containing one of an oxidizing agent, a reducing agent, and a nitriding agent, to the surface of the substrate. A heating source repeatedly irradiates a pulsed energy having a pulse width of about 0.1 ms to about 100 ms on the substrate. An evacuation system evacuates the first and second gases from the reaction chamber. A control system sequentially and repeatedly executes a cycle including operations of introducing the first gas, introducing the second gas, and irradiating the energy.
摘要:
To change a plurality of trenches to one flat empty space by two-dimensionally forming the trenches on the surface of a semiconductor substrate and then applying heat treatment to the semiconductor substrate.
摘要:
A semiconductor device comprises a semiconductor substrate; a trench formed in the semiconductor substrate or in a layer deposited on the semiconductor substrate; a first conductive layer deposited in the trench and having a recess in the top surface thereof; a buried layer which buries the recess of the first conductive layer and which is made of a material having a melting point lower than that of the first conductive layer; and a second conductive layer formed on the buried layer inside the trench and electrically connected to the first conductive layer.
摘要:
A semiconductor device according to an aspect of the present invention comprises a first semiconductor layer and a plurality of second semiconductor layers. The first semiconductor layer is formed in a first region of a semiconductor substrate with one of an insulating film and a cavity interposed between the semiconductor substrate and the first semiconductor layer. The plurality of second semiconductor layers is formed in second regions of the semiconductor substrate.
摘要:
A semiconductor device comprises a support layer made of semiconductor, a diffusion layer formed by implanting impurities in a surface layer of the support layer, a buried insulating layer provided on the diffusion layer, an island-like active layer provided on the buried insulating layer, a channel region formed in the active layer, source and drain regions formed in the active layer, sandwiching the channel region, a gate insulating film formed on the channel region, a gate electrode formed on the gate insulating film and on side surfaces of the island-like active layer, and insulated and isolated from the channel, source, and drain regions, and an electrode connected to the active layer.
摘要:
A method of purging a semiconductor manufacturing apparatus comprises a step of etching a CVD-deposited film deposited in a chamber constituting a semiconductor manufacturing apparatus which has performed a process of forming a CVD film using a CVD process over a semiconductor wafer by using an etching gas containing at least a halogen gas, and a step of purging a cleaning gas remaining in the chamber by causing a gas containing hydrogen to flow into the chamber after the step of etching the CVD-deposited film by using the cleaning gas.
摘要:
A semiconductor device according to an aspect of the present invention comprises a first semiconductor layer and a plurality of second semiconductor layers. The first semiconductor layer is formed in a first region of a semiconductor substrate with one of an insulating film and a cavity interposed between the semiconductor substrate and the first semiconductor layer. The plurality of second semiconductor layers is formed in second regions of the semiconductor substrate.
摘要:
A semiconductor device includes a first semiconductor region having a buried oxide layer formed therein, a second semiconductor region in which the buried oxide layer does not exist, a trench formed to such a depth as to reach at least the buried oxide layer in a boundary portion between the first and second semiconductor regions, and an isolation insulating layer buried in the trench.
摘要:
In A MIS type semiconductor device using a polycrystalline silicon film as a gate electrode, a lower portion of the polycrystalline silicon film has larger grains in average diameter than an upper portion thereof, and there is no peak of oxygen concentration in a film thickness direction in the polycrystalline silicon film.
摘要:
An impurity diffusion layer shallow in diffusion depth and high in activity is formed in a semiconductor device. In the semiconductor device, clusters of icosahedron structure each composed of boron atoms are formed in the silicon crystal of the impurity layer of the semiconductor device so as to function as acceptors. Further, after the clusters of icosahedron structure each composed of 12 boron atoms have been formed by implanting boron ions at high concentration, the device is processed at temperature lower than 700.degree. C. to prevent the boron from being decreased due to combination with silicon. Since an impurity layer shallow in diffusion from the substrate surface and high in activity can be formed and further the clusters of icosahedron structure each composed of 12 boron atoms can be utilized as acceptors, it is possible to realize a high doping even in the manufacturing process for the devices not suitable for high temperature annealing.