There is described a method of forming a through-silicon-via to form an interconnect between two stacked semiconductor components using pulsed laser energy. A hole is formed in each component, and each hole is fill ed with a plug formed of a first metal. One component is then stacked on another component such that the holes are in alignment, and a pulse of laser energy is applied to form a bond between the metal plugs.

A square-wave three-phase brushless permanent magnet DC motor. The number of the magnetic poles on the iron core of the rotor (1) of the motor is: 2P=8. The number of the slots (21) in the iron core of the stator (2) of the motor is: Z=12. The iron core of the stator (2) includes three large teeth, three middle-sized teeth and six small teeth. The sum of the mechanical angels of one large tooth, one middle-sized tooth and two small teeth is 120 degree. Three-phase concentrated windings are wrapped around the large teeth and the middle-sized teeth separately. The windings of each phase only have two concentrated windings. The motor only has six concentrated windings.

In a medal marking mechanism in a block forming mechanism, an added value of a discharged medal can be improved further by putting a mark such as a date and a serial number at a rear face of the medal on which the mark is transferred. The medal where the block is formed drops on a medal guide path (2) and slides down in a reverse state. A marking machine driving part (28) lowers a marking part to the medal stored in a base of a medal marking box (8), and the serial number and the like are marked. A medal extrusion part (26) protrudes, and the medal on which the serial number and the like are marked slides down a medal discharge path (9) and is discharged from a medal discharge port.

Disclosed is a separating method of cracked methanol gas to prepare polymer grade low carbon olefin, which comprises compression step, edulcoration step and absorptive separation step, wherein in the absorptive separation step first feeding the cracked methanol gas into pre-deethylenizing tower, then passing through absorptive separation by C4 absorbent agent to obtain polymer grade ethylene product, polymer grade propylene product and C4 and C5 product.

A continuous and dynamical acquisition-type imaging system for small animal induced fluorescence molecule imaging. The system includes a computer (1), a small animal rotary platform device (2) and a fluorescence imaging exciting and detecting device (3). The small animal rotary platform device (2) includes a small animal suspending holder and a rotating motor connected to the suspending holder; the fluorescence imaging exciting and detecting device (3) includes a fluorescence imaging exciting module (31) and a fluorescence imaging detecting module (32). The CCD (323) of the fluorescence imaging detecting module (32) is connected to the computer (1) by an interface controller; the rotating motor is connected to the computer (1) by a RS232 interface.

Provided is a medal cooling device in a medal die graving device which does not make a medal buyer have uncomfortable feeling caused by the generation of heat when the medal buyer touches a medal by holding the medal which is die formed by a die forming mechanism for a predetermined period of time in the device, and then offering the medal, and which can suppress the period of time until the medal is offered to a minimum. An original medal (78) dropped through a guide rail (77) of the die forming mechanism is rolled by a rolling roller and a die fitting roller and the design of the die is transferred. The medal on which the design is formed is held by a medal receiving plate (2) of a temporary medal holding mechanism (1) for a predetermined period of time, and then ejected by use of the inclination of the medal receiving plate (2). Heat generated by a die forming motion is dissipated at the medal receiving (2). Thus, the buyer never has uncomfortable feeling when the buyer touches the medal.

A plasma display panel is disclosed. The plasma display panel includes a scan electrode and a sustain electrode positioned parallel to each other on a front substrate, an upper dielectric layer positioned on the scan electrode and the sustain electrode, a rear substrate on which an address electrode is positioned to intersect the scan electrode and the sustain electrode, a lower dielectric layer positioned on the address electrode, and a barrier rib positioned between the front substrate and the rear substrate. The barrier rib includes lead (Pb) equal to or less than 1,000 ppm (parts per million). A discharge gas is filled between the front substrate and the rear substrate and includes helium (He) of 9% to 42%.

A license management program (400) collectively manages patch information of a plurality of software products developed by a plurality of development vendors. A patch processing part (530) operated in a business Web server (20) acquires information related to a patch from a license management Web server (10) and applies the patch. The patch processing part (530) checks an operation environment when it acquires information related to the patch from the license management Web server (10).

A method for packaging lithium cell by injecting plastic. A face cover of a electric core assembly can be formed by this method. The electric core assembly may be a lithium ion electric core assembly or a polymer electric core assembly, wherein the polymer electric core assembly was packaged by a metal flake in advance. The method for packaging a lithium cell includes: providing the electric core assembly with a output terminal into a cavity of a mould and locating therein with a location pin; melting thermoplastic polyamide resin desired to be inject at 170 to 230 degrees Centigrade, to make the viscosity of the thermoplastic polyamide resin in the range of 340OmPa •s to 10,000 mPa •s; injecting the said molten thermoplastic polyamide resin into the cavity of the metal mould at the pressure of the injecting plastic in the range of 1 MPa to 10MPa, so as to inject the said thermoplastic polyamide resin into the cavity of the metal mould and coat onto the front face of the electric core assembly to form a plastic face cover.

[PROBLEMS] To provide a method, and apparatus, for piercing and rolling a seamless pipe, with which material peeling can be prevented even when a pipe expansion ratio is raised through increasing of skew angle δ. [MEANS FOR SOLVING PROBLEMS] There is provided a method of piercing and rolling a seamless metal pipe, including disposing a plug along a pass line between a pair of disc rolls and a pair of cone-shaped main rolls alternately disposed around the pass line and spirally moving a material to be rolled, characterized in that the disc rolls are disposed with an inclination of skew angle δ fixed against the pass line. Further, there is provided an apparatus therefor.