摘要:
A pattern of more than one conductive layer overlying a fuse formed in a TEG region is subject to OR processing; further, a combined or “synthetic” pattern with an opening pattern of one or more testing pads connected to said fuse added thereto is copied by transfer printing techniques to a photosensitive resin layer that is coated on the surface of a semiconductor wafer, thereby forcing the resin layer to reside only in a selected area of a scribe region, to which area the synthetic pattern has been transferred.
摘要:
There are provided an ultrasonic cleaning apparatus and an ultrasonic cleaning method capable of suppressing occurrence of damage on a substrate to be cleaned and capable of performing cleaning at a high cleaning level for highly precise substrates and the like used in an electronics industry. Occurrence of damage on the substrate to be cleaned is suppressed by holding an object to be cleaned so as to be positioned out of a region where perpendiculars extend from an oscillating surface of an ultrasonic transducer to a liquid surface (an ultrasonic-irradiated region) under and in the vicinity of the liquid surface of a cleaning solution, exciting a capillary wave on a surface of the cleaning solution by an ultrasonic wave, and separating particulate contamination of the object to be cleaned by an acoustic pressure generated by the capillary wave without irradiating the object to be cleaned directly with the ultrasonic wave.
摘要:
An ultrasonic cleaning device is provided which can easily cope with an increase in a diameter of a cleaning surface of an object to be cleaned. An ultrasonic cleaning device according to the present invention includes an ultrasonic transducer 13 for providing ultrasonic energy to a propagation liquid 15, an ultrasonic propagation tube 12 for flowing the propagation liquid provided with the ultrasonic energy by the ultrasonic transducer, a holding mechanism disposed below the ultrasonic propagation tube for holding an object to be cleaned 21, and a cleaning liquid supply mechanism for supplying a cleaning liquid to a cleaning surface of the object to be cleaned held by the holding mechanism, and the ultrasonic propagation tube 12 is disposed so that a side surface thereof may contact a liquid film 19 of the cleaning liquid formed on the cleaning surface by supplying the cleaning liquid to the cleaning surface by the cleaning liquid supply mechanism.
摘要:
A composite layer composed of an Ni layer 72 and a Pd layer 73 is formed on a solder pad 77U, and a solder 76α on the composite layer is composed of a solder containing no lead. Because a Pd layer (palladium layer) reduces phenomenons such as repellency of the solder, adhesiveness with the solder can be enhanced. Because a Pd layer has a higher degree of rigidity than a gold layer, thermal stress is absorbed into the Pd layer and buffered so as to reduce the degree of transmission of stress to the solder bump, or to the solder layer, by means of thermal stress.
摘要:
A system and method of transmitting data across a link aggregation group, the method comprises: receiving a packet sourced from a client having a MAC header and an IP header at an input port of a first upstream switch for transmission from the first upstream switch along a link aggregation and at least two down stream switches to a server, said MAC header having a Destination MAC address and a Source MAC address, and the IP header having a Source IP address and a Destination IP address; changing the destination MAC address from a down stream destination to another down stream destination; sending the packet through a first link aggregation to a first down stream switch; using a hash calculation for changing the Source MAC address of the packet in the first down stream switch to a new address; sending the packet through a second link aggregation to a second down stream switch having an address; and sending the packet from the second down stream switch to a server having a server address.
摘要:
A manufacturing method of a semiconductor device including preparing a lead frame having a die pad, leads arranged around the die pad and a silver plating layer formed over a first portion of each of the leads, mounting a semiconductor chip over a main surface of the die pad with a rear surface of the chip fixed to the main surface of the die pad, electrically connecting electrodes of the chip with the leads through wires, forming a molding resin sealing the die pad, the first portion, the semiconductor chip, and the wires, and forming a lead-free solder plating layer over a second portion of each of the leads exposed from the molding resin. An area of the die pad is smaller than an area of the chip, and a part of the molding resin contacts with the rear surface of the chip exposed from the die pad.
摘要:
A communication relay apparatus, information management system, and control method and program therefor. The communication relay apparatus includes several communication ports, and that includes a communication relay section, a buffer, a control signal transmitting section, a bandwidth information acquiring section, and a transmission interval control section.
摘要:
The back side of a strip substrate with plural semiconductor chips mounted thereon is vacuum-chucked to a lower mold half of a mold, and in this state the plural semiconductor chips are sealed with resin simultaneously to form a seal member. Thereafter, the strip substrate and the seal member are released from the mold and are cut into plural semiconductor devices. The semiconductor devices thus obtained are improved in their mounting reliability.
摘要:
In a semiconductor device having a heat radiation plate, the tips of inner leads connected to a semiconductor chip have a lead width w and a lead thickness t, the width being less than the thickness. The inner leads are secured to the heat radiation plate. Fastening the inner leads to the heat radiation plate supports the latter and eliminates the need for suspending leads. A lead pitch p, the lead width w and lead thickness t of the inner lead tips connected to the semiconductor chip have the relations of w
摘要:
A semiconductor device includes a semiconductor chip having a plurality of electrodes formed on a first major surface thereof, a resin package sealing the semiconductor chip therein, of leads electrically connected to the electrodes of the semiconductor chip and formed so as to extend inside and outside the resin package, and a support lead supporting the semiconductor chip at a part of a second major surface of the semiconductor chip opposite the first major surface. The semiconductor chip is bonded to the support lead with an adhesive tape.