摘要:
A semiconductor device is provided which includes a diode formed of a MISFET and having a current-voltage characteristic close to that of an ideal diode. Negatively charged particles (e.g. electrons: 8a) are trapped on the drain region (2) side of a silicon nitride film (4b) sandwiched between films of silicon oxide (4a, 4c). When a bias voltage is applied between the drain and source with the negatively charged particles (8a) thus trapped and in-channel charged particles (9a) induced by them, the MISFET exhibits different threshold values for channel formation depending on whether it is a forward bias or a reverse bias. That is to say, when a reverse bias is applied, the channel forms insufficiently and the source-drain current is less likely to flow, while the channel forms sufficiently and a large source-drain current flows when a forward bias is applied. This offers a current-voltage characteristic close to that of the ideal diode.
摘要:
A semiconductor device and a manufacturing method thereof which is suited for forming both a transistor for a memory cell and a transistor for a high voltage circuit part on one semiconductor substrate, and moreover, has little deterioration of an electric characteristic in the structure that a sidewall insulating film in a shared contact plug part is removed is provided. An active layer is formed by performing an additional impurity injection on a part where a sidewall insulating film is removed in a forming portion of a shared contact plug. An insulating film is laminated in a high voltage circuit part and a sidewall insulating film of wide width is formed. According to this, a forming width of a sidewall insulating film can be made small in a MOS transistor for a memory cell part, and a forming width of a sidewall insulating film can be made large in a MOS transistor for a high voltage circuit part. Thereupon, in the high voltage circuit part, a source/drain active layer can be formed in the position more distant from a gate electrode.
摘要:
It is an object to provide a semiconductor device capable of holding multibit information in one memory cell also when scaling for a nonvolatile memory progresses, and a method of manufacturing the semiconductor device. A trench (TRI) is formed in a channel portion of an MONOS transistor. Then, a source side portion and a drain side portion in a silicon nitride film (122) of a gate insulating film (120) which interpose the trench (TR1) are caused to function as first and second electric charge holding portions capable of holding electric charges (CH1) and (CH2). In the case in which the electric charges (CH1) are trapped and the electric charges (CH2) are then trapped, thus, a portion (130a) of a gate electrode (130) in the trench (TR1) functions as a shield. If a fixed potential is given to the gate electrode (130), the second electric charge holding portion is not influenced by an electric field (EF1) induced by the electric charges (CH1) so that the trapping of the electric charges (CH2) is not inhibited.
摘要:
A color television video signal is directly read out in synchronism to the scanning speed of a scanner, the video signal thus read out is converted into three primary color signals, and these three primary color signals are in turn converted into process video signals, which are supplied to the scanner. A printing plate can be produced directly from a television video signal without requiring any color picture original.
摘要:
It is an object to provide a semiconductor device capable of holding multibit information in one memory cell also when scaling for a nonvolatile memory progresses, and a method of manufacturing the semiconductor device. A trench (TR1) is formed in a channel portion of an MONOS transistor. Then, a source side portion and a drain side portion in a silicon nitride film (122) of a gate insulating film (120) which interpose the trench (TR1) are caused to function as first and second electric charge holding portions capable of holding electric charges (CH1) and (CH2). In the case in which the electric charges (CH1) are trapped and the electric charges (CH2) are then trapped, thus, a portion (130a) of a gate electrode (130) in the trench (TR1) functions as a shield. If a fixed potential is given to the gate electrode (130), the second electric charge holding portion is not influenced by an electric field (EF1) induced by the electric charges (CH1) so that the trapping of the electric charges (CH2) is not inhibited.
摘要:
A friction sheet is described consisting of a single layer or a laminated layer comprising an at least uniaxially oriented high density polyethylene film having a density of at least 0.94 g/cm.sup.3.
摘要翻译:描述了由单层或层压层组成的摩擦片,所述单层或层压层包含密度至少为0.94g / cm 3的至少单轴取向的高密度聚乙烯膜。
摘要:
A semiconductor device and a manufacturing method therefor reduce the occurrence of variation in threshold voltage of a MOS transistor formed by a dual oxide process, thereby to improve manufacturing yield. On the main surface of a semiconductor substrate (1), gate oxide films (GX1, GX2) of different thickness are located in active regions (3A, 3B), respectively, and gate electrodes (GT1, GT2) are located on top of the gate oxide films (GX1, GX2), respectively. An isolation insulating film (2) which defines the active region (3A) in a thick-film portion (AR) has an excessively removed edge portion on the side of a MOS transistor (100) and thereby a recessed portion (DP) is formed in the edge portion of the active region (3A). On the other hand, an edge portion of the isolation insulating film (2) in a thin-film portion (BR) on the side of a MOS transistor (200) is not excessively removed.
摘要:
A semiconductor device capable of holding multibit information in one memory cell, and a method of manufacturing the semiconductor device. A trench is formed in a channel portion of an MONOS transistor. Then, a source side portion and a drain side portion in a silicon nitride film of a gate insulating film which interpose the trench are caused to function as first and second electric charge holding portions capable of holding electric charges. In the case in which first electric charges are trapped on the drain side and second electric charges are trapped on the source side, a portion of a gate electrode in the trench functions as a shield. If a fixed potential is given to the gate electrode, the second electric charge holding portion is not influenced by an electric field induced by the first electric charges so that the trapping of the second electric charges is not inhibited.
摘要:
A toner cartridge comprising a toner container body having an opening and a mouth ring member provided at the opening. The mouth ring member has a bonding and non-bonding region where the sealing film is attached at the bonding region. A lid is supported under the sealing film by the non-bonding region in such a manner that when the sealing film is peeled off, the lid slides and allows the toner to dispense into the toner box.
摘要:
A disposable toner cartridge includes a cartridge container having a bottom opening for discharging toner and a sealing film that may be peeled off of the bottom opening in a first direction. A covering member is attached to the cartridge container beneath the sealing film and engages the sealing film such that movement of the covering member in a first direction seals the sealing film from the bottom opening and in a second direction reseals the bottom opening with the sealing film.