Abstract:
A nonaqueous electrolyte and a lithium ion battery with reduced temporal variations in battery characteristics from initial values are provided. A mixed solution is prepared by dissolving a lithium salt such as LiPF6 in a nonaqueous solvent such as ethylene carbonate. Allylboronate ester and siloxane are mixed with the mixed solution. The content of the allylboronate ester is 1 wt % or less. The content of the siloxane is 2 wt % or less. 2-Allyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane is used as the allylboronate ester. At least one kind selected from hexamethyldisiloxane and 1,3-divinyltetramethyldisiloxane is used as the siloxane.
Abstract:
A nonaqueous electrolyte and a lithium ion battery with reduced temporal variations in battery characteristics from initial values are provided. A mixed solution is prepared by dissolving a lithium salt such as LiPF6 in a nonaqueous solvent such as ethylene carbonate. Allylboronate ester and siloxane are mixed with the mixed solution. The content of the allylboronate ester is 1 wt % or less. The content of the siloxane is 2 wt % or less. 2-Allyl-4,4,5,5-tetramethyl-1,3,2-dioxaborolane is used as the allylboronate ester. At least one kind selected from hexamethyldisiloxane and 1,3-divinyltetramethyldisiloxane is used as the siloxane.
Abstract:
A semiconductor device of the present invention includes a semiconductor element having an electrode pad; a substrate over which the semiconductor element is mounted and has an electrical bonding part; and a bonding wire electrically connecting the electrode pad to the electrical bonding part, wherein a main metal component of the electrode pad is the same or different from a main metal component of the bonding wire, and when the main metal component of the electrode pad is different from the main metal components of the bonding wire, a rate of interdiffusion of the main metal components of the bonding wire and the electrode pad at a junction of the bonding wire and the electrode pad under a post-curing temperature of an encapsulating resin is lower than that of interdiffusion of gold (Au) and aluminum (Al) at a junction of aluminum (Al) and gold (Au) under the post-curing temperature.
Abstract:
A semiconductor device is configured that two or more semiconductor elements are stacked and mount on a lead frame, the aforementioned lead frame is electrically joined to the semiconductor element with a wire, and the semiconductor element, the wire and an electric junction are encapsulated with a cured product of an epoxy resin composition for encapsulating semiconductor device, and that the epoxy resin composition for encapsulating semiconductor device contains (A) an epoxy resin; (B) a curing agent; and (C) an inorganic filler, and that the (C) inorganic filler contains particles having particle diameter of equal to or smaller than two-thirds of a thinnest filled thickness at a rate of equal to or higher than 99.9% by mass.
Abstract:
An epoxy resin composition for encapsulating a semiconductor element and a semiconductor device manufactured using the epoxy resin composition are provided. The epoxy resin composition includes epoxy resin, a curing agent, at least one kind of an inorganic filler selected from the group consisting of silicates such as talc and calcined clay, oxides such as silica and fused silica, and hydroxides such as aluminum hydroxide and magnesium hydroxide, and a pH buffer agent having a pH buffer area of pH 4 to 8. Further, the semiconductor device is manufactured by encapsulating at least one semiconductor element with a cured product of the above epoxy resin composition. Such a semiconductor device can have excellent moisture resistance.
Abstract:
An epoxy resin composition for encapsulating a semiconductor element and a semiconductor device manufactured using the epoxy resin composition are provided. The epoxy resin composition includes epoxy resin, a curing agent, at least one kind of an inorganic filler selected from the group consisting of silicates such as talc and calcined clay, oxides such as silica and fused silica, and hydroxides such as aluminum hydroxide and magnesium hydroxide, and a pH buffer agent having a pH buffer area of pH 4 to 8. Further, the semiconductor device is manufactured by encapsulating at least one semiconductor element with a cured product of the above epoxy resin composition. Such a semiconductor device can have excellent moisture resistance.
Abstract:
A facsimile machine including a first facsimile-data transmitter including a first connector connectable to an external computer via a first communication line, and a second connector connectable to a second facsimile-data transmitter via a second communication line, the first facsimile-data transmitter transmitting, to the external computer via the first communication line, facsimile data transmitted from the second facsimile-data transmitter via the second communication line, the machine also including a facsimile-data receiver, and a control device which controls the first facsimile-data transmitter not to transmit the facsimile data to the external computer, and controls the facsimile-data receiver to receive the facsimile data, in place of the external computer.
Abstract:
In a versatile telephone unit subjected to a caller's telephone number reception service wherein at least a caller's telephone number is transmitted to a telephone unit prom a switchboard via a telephone line, the telephone unit has a caller's telephone number displaying feature allowing the user to know who telephoned while the user is absent or away from the telephone. When a call signal from a remote telephone is detected a predetermined number of times, the caller's telephone number transmitted with the call signal from the switchboard is stored in a memory. When the telephone is in an automatic answering mode, the caller's telephone number is stored in the memory along with incoming message. The caller's telephone number stored in the memory can be displayed on a display while reproducing the incoming message if any. A determination of whether an incoming message contains voice is performed and if no voice is determined to be recorded then the incoming message is erased from memory and the device indicates the associated telephone number has no voice recording.
Abstract:
A data storage device for a facsimile machine, or similar device, is provided with a voice/image memory. The voice/image memory is so designed to store voice digital data and image digital data. By manipulation of a record key and a play key which are provided on an operation panel and serve as an erase key and a cursor key, erasure of the voice digital data, erasure of the image digital data and erasure of both of the voice and image digital data can be selectively realized.