摘要:
In a method for identifying blistered film in layered films, a focused ion beam irradiates the approximate center of the blister and a portion which has no blister, and individual sets of the measurement data relating to the respective numbers of secondary electrons generated by the irradiation are compared to determine which film of layered films has blistered. Since the focused ion beam is employed, the present method is applicable to the detection of a small blister in layered films. Furthermore, since an enormous number of cutting operations as might have been required in the prior art are eliminated, the present method can be carried out, stably, positively and economically.
摘要:
A process for forming electrodes for semiconductor devices having a semiconductor substrate and an electrically conductive portion covered and protected by an electrically insulating coating. The process includes the steps of forming an electrically conductive film on the electrically insulating coating, forming an electrode to be connected to an external circuit on the electrically conductive film at a position overlying the electrically conductive portion by exposing portions of the electrically insulating coating and the first electrically conductive film to a converged ion beam, electrically connecting the electrode to the exposed portions of the electrically conductive film, and removing the portions of the electrically conductive film not covered by the electrode. As a result, the likelihood of breakdown of the internal circuit of the semiconductor device connected to the electrically conductive portion while the electrode is being formed is greatly reduced.
摘要:
A process for forming electrodes for semiconductor devices having a semiconductor substrate and an electrically conductive portion covered and protected by an electrically insulating coating. The process includes the steps of forming an electrically conductive film on the electrically insulating coating, forming an electrode to be connected to an external circuit on the electrically conductive film at a position overlying the electrically conductive portion by exposing portions of the electrically insulating coating and the first electrically conductive film to a converged ion beam, electrically connectig the electrode to the exposed portions of the electrically conductive film, and removing the portions of the electrically conductive film not covered by the electrode. As a result, the likelihood of breakdown of the internal circuit of the semiconductor device connected to the electrically conductive portion while the electrode is being formed is greatly reduced.
摘要:
A process for forming electrodes for semiconductor devices having a semiconductor substrate and an electrically conductive portion covered and protected by an electrically insulating coating. The process including the steps of forming an electrically conductive film on the electrically insulating coating, forming an electrode to be connected to an external circuit on the electrically conductive film at a position overlying the electrically conductive portion by exposing portions of the electrically insulating coating and the first electrically conductive film to a converged ion beam, electrically connecting the electrode to the exposed portions of the electrically conductive film, and removing the portions of the electrically conductive film not covered by the electrode. As a result, the likelihood of breakdown of the internal circuit of the semiconductor device connected to the electrically conductive portion while the electrode is being formed in greatly reduced.
摘要:
A process for forming electrodes for semiconductor devices having a semiconductor substrate and an electrically conductive portion covered and protected by an electrically insulating coating. The process includes the steps of forming an electrically conductive film on the electrically insulating coating, forming an electrode to be connected to an external circuit on the electrically conductive film at a position overlying the electrically conductive portion by exposing portions of the electrically insulating coating and the first electrically conductive film to a converged ion beam, electrically connecting the electrode to the exposed portions of the electrically conductive film, and removing the portions of the electrically conductive film not covered by the electrode. As a result, the likelihood of breakdown of the internal circuit of the semiconductor device connected to the electrically conductive portion while the electrode is being formed is greatly reduced.
摘要:
In order to cut a portion of an aluminum interconnection in an aluminum circuit to be disconnected, the aluminum interconnection portion in the region to be cut is covered with a hydrogen-containing silicon nitride film by plasma CVD and is then irradiated with laser beams in an operating sequence consisting of three steps: the first step with relatively low power intensity and long irradiation time duration, the second step with intermediate power intensity and short irradiation time duration and the third step with relatively high power intensity and shortest irradiation time duration.
摘要:
A method of treating a silicon nitride film formed by plasma deposition and deposited on a substrate, which comprises: (1) irradiating the silicon nitride film, and (2) heating the silicon nitride film during the irradiating.
摘要:
In order to cut a portion of an aluminum interconnection to be disconnected in an aluminum circuit, the aluminum interconnection portion in the region to be cut is covered with a hydrogen-containing silicon nitride film by plasma CVD and is then irradiated with laser beams in an operating sequence consisting of three steps: the first step with relatively low power intensity and long irradiation time duration, the second step with intermediate power intensity and short irradiation time duration and the third step with relatively high power intensity and shortest irradiation time duration.
摘要:
A read only memory device includes a first electrode and a second electrode arranged in an overlapping relation with the first electrode so as to be geometrically in connection at an intersection therewith corresponding to a storage location for one type of data. At least one of the first and second electrodes is formed of a ceramics system high temperature superconductor. A prescribed one of the two electrodes which is formed of the high temperature superconductor has a high resistance region for insulating the first and second electrodes from each other at an intersection corresponding to a storage location for another type of stored data. The high resistance region is formed by irradiating an intersection with a focused ion beam.
摘要:
A read only memory device comprises a first electrode, and a second electrode arranged overlapping with the first electrode so as to be geometrically in connection at the intersection. At least one of the first and second electrodes is formed of a ceramics system high temperature superconductor. A prescribed electrode out of said electrodes which is formed of the high temperature superconductor has a high resistance region for insulating the first and second electrodes from each other at the intersection corresponding to a prescribed stored data.In the manufacturing method, the first and second electrodes are formed and, thereafter, a high resistance region is formed by irradiating focused ion beam.