摘要:
A crosslinkable silicon polymer composition is provided comprising (A) a silicon polymer containing Si--Si bonds and Si--H groups and having a Mn of 500-500,000, (B) a polyfunctional aromatic carboxylic acid allyl ester, and (C) an organic peroxide or azo compound. The composition cures into a crosslinked polysilane film which is solvent insoluble, tough, and abrasion resistant.
摘要:
A conductive circuit board is prepared by forming a film of organopolysilane having a H-Si bond on a substrate, selectively exposing the organopolysilane film to light to form a photo-crosslinked layer in exposed areas, dissolving away unexposed areas, and contacting a silver salt with the photo-crosslinked layer and reducing the silver salt to form a silver conductive layer thereon. A conductive circuit board comprising a circuit-patterned film of photo-crosslinked polymer on a substrate and a silver conductive layer on the film has high and stable electric property.
摘要:
A pulse signal generating circuit includes a ring oscillator and an internal voltage generating circuit. The internal voltage generating circuit generates an internal voltage depending on an operation temperature. The internal voltage is low at a normal temperature, and is high at a high temperature. Each inverter in the ring oscillator is driven by the internal voltage supplied from the internal voltage generating circuit. Thereby, a period of a pulse signal increases at a normal temperature, and decreases at a high temperature.
摘要:
A semiconductor memory device includes a first conductivity type well in a first conductivity type semiconductor substrate surrounded by a second conductivity type well, one of a memory cell and an external input circuit arranged on the first conductivity type well and the other disposed outside the second conductivity type well. A predetermined power supply voltage is applied to the second conductivity type well and the first conductivity type well is connected to ground. In the structure, charge carriers injected from the external input circuit are absorbed in the second conductivity type well. As a result, the charge carriers are prevented from reaching the memory cell and destroying data stored therein. Therefore, it is possible to miniaturize transistors and increase integration density of dynamic random access memory devices without degrading the source to drain dielectric strength.
摘要:
A semiconductor memory device is provided which can apply a voltage stress to every adjacent bit lines even when data is written using a data bit compression function in a burn-in test mode. More specifically, when data is written using the data bit compression function in the test mode, an input buffer circuit is brought to a state in which it receives a signal corresponding to a signal dq0 applied to a specific input/output terminal by a switch circuit controlled by a test mode specify signal TE in common. When an inversion designate signal INV is in an active state, a complementary signal corresponding to a signal obtained by inversion of signal dq0 by an inverting circuit is output to internal data buses IO0, ZIO0, and IO2, ZIO2. On the other hand, a complementary signal corresponding to signal dq0 is output to internal data buses IO1, ZIO1, and IO3, ZIO3.
摘要:
An address generating circuit and an address switching circuit of a DRAM output address signals A0 to A11 according to a refresh cycle time set by the user being less than a predetermined value, and output address signals A0 to A10 according to the refresh cycle time being the predetermined value or more. A row decoder selects one word line in response to the signals A0 to A11, and selects two word lines in response to the signals A0 to A10. Since refresh is carried out by selecting two word lines when the refresh cycle time is at the predetermined value or more, disappearance of data can be prevented.
摘要:
A zoom lens device includes an imaging device for converting light from an object to an electrical signal, a zoom lens and a focusing lens disposed between the object and the imaging device, a zooming adjusting circuit for adjusting a movement of the zoom lens, focus adjusting circuits for adjusting movements of the focusing lens, correcting circuits for outputting an adjustment value in response to adjustment of the zoom lens, a temperature detecting circuit for detecting a temperature around the object, and a coefficient circuit for correcting a correction value of the correcting circuit based on an output signal of the temperature detecting circuit.
摘要:
A silicon containing polymer such as a polysilane, poly(disilanylenephenylene), and poly(disilanyleneethynylene) is admixed with an amine compound and then doped with an oxidizing dopant, typically iodine and ferric chloride, to produce a highly conductive polymer composition having improved shapability. The composition is easily applicable, as by spin coating, to form a highly conductive film or coating.
摘要:
A liquid crystal projection display capable of functioning at a high light capturing efficiency and a high relative corner illuminance comprises a light source means including a light source, a liquid crystal panel means, a projection lens means and a screen means. A liquid lens formed by sealing a liquid in a space between opposite transparent members is disposed near the light source or the real image of the light source to enhance the relative corner illuminance without reducing the light capturing efficiency by multiplying the angle of divergence of light rays emitted by the light source by the reciprocal of the refractive index of the liquid. A first optical system disposed on the entrance side of the liquid crystal panel is provided with a relative corner illuminance enhancing means comprising a first light converging means disposed relatively near to the light source means, and a second light converging means disposed relatively remote from the light source means. The first light converging means enhances the relative corner illuminance on the entrance surface of the second light converging means.
摘要:
Polycyclic aromatic group-pendant polysilanes of the following general formula are described.[(R.sup.1 R.sup.2 Si).sub.k (R.sup.3 R.sup.4 Si).sub.m ].sub.nwherein R.sup.1, R.sup.2, R.sup.3, and R.sup.4 are, respectively, a hydrogen atom or a monovalent hydrocarbon group provided that at least one of R.sup.3 and R.sup.4 is a monovalent hydrocarbon group having a polycyclic aromatic group or a biphenyl group. When the polysilane is doped with an oxidative dopant, the polymer is rendered electrically conductive and has thus wide utility in various fields of photoconductive and electrically conductive materials without involving degradation of the polysilane.