Mitsubishi

About: Mitsubishi is a company organization based out in Tokyo, Japan. It is known for research contribution in the topics: Layer (electronics) & Signal. The organization has 53115 authors who have published 54821 publications receiving 870150 citations. The organization is also known as: Mitsubishi Group of Companies & Mitsubishi Companies.

Apparatus for producing semiconductor devices

Abstract: An apparatus for treating wafers utilizing the plasma produced by a gas discharge and a method of cleaning such apparatus are disclosed. The apparatus is equipped with a device for forming a high voltage electric field in a space outside of the discharge space in which the wafer treating plasma is generated. The cleaning of the inner surfaces of the vacuum vessel of the apparatus is effected during the periods between the treatments by means of the plasma generated by the gas discharge started and sustained by the electric field device as well as by a main electrode for maintaining the treating discharge. The device for forming a high voltage electric field as mentioned above may comprise a limiter electrode surrounding the treating discharge space; alternatively, it may comprise an auxiliary electrode disposed in the space outside the treating discharge space. First, an etching gas capable of etching the films deposited on the inner surfaces of the vessel of the apparatus is introduced into the vessel as the discharge gas in the cleaning process; next, hydrogen is introduced into the vessel to remove the impurities adsorbed on the surfaces of the vessel. The etching gas may comprise hydrogen or argon.

Semiconductor memory device with a voltage down converter stably generating an internal down-converted voltage

Abstract: A comparison circuit compares a reference voltage Vref from a reference voltage generation circuit with an internal power supply voltage VCI on an internal power supply line to provide a signal according to the comparison result A drive transistor supplies current to the internal power supply line from an external power supply node according to the output signal of the comparison circuit A resistance element connected between the external power supply node and the output node of the comparison circuit and a resistance element connected between the output node of the comparison circuit and a ground node VSS suppresses the amplitude of an output signal of the comparison circuit Thus, overdrive of the drive transistor can be suppressed, and a current corresponding to an abrupt change of the internal power supply voltage can be supplied from the external power supply node to the internal power supply line by the amplitude limitation function Thus, an internal power supply voltage generation circuit is provided superior in high frequency response that can generate an internal power supply voltage stably

A novel gene, Translin, encodes a recombination hotspot binding protein associated with chromosomal translocations.

Abstract: We have identified a novel gene, Translin, encoding a protein which specifically binds to consensus sequences at breakpoint junctions of chromosomal translocations in many cases of lymphoid malignancies. The encoded protein, Translin, is a previously undescribed type with no significant similarity to known proteins. In the native form, Translin polypeptides form a multimeric structure which is responsible for its DMA binding activity. Nuclear localization of Translin is limited to lymphoid cell lines, raising the intriguing possibility that nuclear transport of Translin is regulated in a physiologically significant way such that active nuclear transport is associated with the lymphoid specific process known as Ig/TCR gene rearrangement.

Shift register and image display apparatus containing the same

Abstract: A shift register has an output stage formed by a first transistor connected between an output terminal and a first clock terminal and a second transistor connected between the output terminal and a ground. Third and fourth transistors are connected in series between the gate of the first transistor (first node) and the ground. A second node between the third and fourth transistors is connected to a power source via a fifth transistor. The fifth transistor has its gate connected to the first node. Accordingly, when the third and fourth transistors are turned off to raise the first node in level, the fifth transistor is turned on, whereby a predetermined voltage is applied to the second node.