摘要:
In a lead frame with a reinforcing ring surrounding a semiconductor element which are electrically connected to leads through electrodes is integrally formed through suspending portions, reinforcing portions for reinforcing the suspending portions are provided on the suspending portiones. Upon application of a lead frame forming technique in which a laminate plate of three or more layers is used as a base, and inner leads are formed at one side while outer leads are formed by the surface layer at the other side, the lead frame is formed by forming a ring in place of outer leads, for example. A semiconductor package is formed by mounting the lead frame on a semiconductor chip.
摘要:
In a lead frame with a reinforcing ring surrounding a semiconductor element which are electrically connected to leads through electrodes is integrally formed through suspending portions, reinforcing portions for reinforcing the suspending portions are provided on the suspending portions. Upon application of a lead frame forming technique in which a laminate plate of three or more layers is used as a base, and inner leads are formed at one side while outer leads are formed by the surface layer at the other side, the lead frame is formed by forming a ring in place of outer leads, for example. A semiconductor package is formed by mounting the lead frame on a semiconductor chip.
摘要:
A method of manufacturing a semiconductor chip that has electrode pads on the chip front surface and disposed inside a conductive outer ring. A film circuit is disposed on the chip front surface side. External connection thermals are formed on the film circuit so as to project there from. First leads electrically connect part of the electrode pads to part of the external connection terminals. A second lead electrically connects a grounding or power supply electrode pad to the outer ring, and a third lead electrically connects a grounding or power supply external connection terminal to the outer ring.
摘要:
There is provided a method for manufacturing a lead frame which can easily manufacture a high quality lead frame.A pattern layer is selectively formed on a copper plate and the surface of the substrate having formed this pattern layer is then plated with gold to form a gold layer using the pattern layer as the mask. Next, the gold layer is then plated with copper to form a copper layer, thereby forming a fine lead consisting of two layers of gold layer and copper layer. Thereafter, the pattern layer is selectively removed, an insulated resist film is formed and the copper plate is etched. In this case, the gold layer is used as the etching stop layer. Thereby, the lead frame having the fine lead of double-layer structure can be formed.
摘要:
In a semiconductor chip, electrode pads are formed in a peripheral portion of the chip front surface and the inside of the pad forming region is made an effective device region. An insulating, thick-film protective layer is laminated on the effective device region of the semiconductor chip. Leads are constituted of outer leads that are protected by an insulating film and inner leads that are integral with and extend from the outer leads. External connection terminals are formed on the outer leads, and the tips of the inner leads are connected to the electrode pads of the semiconductor chip. A reinforcement plate is provided so as to surround the semiconductor chip. A peripheral space of the semiconductor chip is charged with a sealing resin. According to a second aspect of the invention, a semiconductor chip has electrode pads on the chip front surface and disposed inside a conductive outer ring. A film circuit is disposed on the chip front surface side. External connection terminals are formed on the film circuit so as to project therefrom. First leads electrically connect part of the electrode pads to part of the external connection terminals. A second lead electrically connects a grounding or power supply electrode pad to the outer ring, and a third lead electrically connects a grounding or power supply external connection terminal to the outer ring. A conductive stage is bonded to the chip back surface and the outer ring through respective conductive bonding layers.
摘要:
An improved semiconductor device and method of manufacturing employs interconnecting films on film circuit as ground lines which extend to the periphery of the film circuit where there is a further connection to a conductive reinforcing plate 25. Advantageously, the conductive reinforcing plate reduces electrical noise from interfering with the semiconductor device and prevents the semiconductor device from radiating undesired signals. The interconnecting films also reduce cross-talk between signal lines of the semiconductor device.
摘要:
A semiconductor device employs interconnecting films on film circuit as ground lines which extend to the periphery of the film circuit where there is a further connection to a conductive reinforcing plate. Advantageously the conductive reinforcing plate reduces electrical noise from interfering with the semiconductor device and prevents the semiconductor device from radiating undesired signals. The interconnecting films also reduce cross-talk between signal lines of the semiconductor device.
摘要:
A plurality of outboard motors are mounted to a stern of a watercraft and configured to be steered independently. A target steering angle setting section is configured to set a target steering angle for each of the outboard motors. Actuators are configured to steer the outboard motors such that the steering angle of each of the outboard motors is equal or substantially equal to a target steering angle. An actual steering angle detecting section is configured to detect an actual steering angle of each of the outboard motors. A control section is programmed and configured to control the steering operation of the outboard motors such that, when a steering angle difference defining a difference between the actual steering angles of adjacently arranged outboard motors becomes equal to or larger than a prescribed value, an increase of the steering angle difference is prevented.
摘要:
To provide a transformation method for producing a stramenopile organism having an improved unsaturated fatty acid production capability by disrupting a gene of the stramenopile organism or inhibiting the expression of the gene in a genetically engineering manner. [Solution] A method for transforming a stramenopile organism, which comprises disrupting a gene of the stramenopile organism or inhibiting the expression of the gene in a genetically engineering manner, and which is characterized in that the stramenopile organism is selected from Thraustochytrium aureum, Parietichytrium sarkarianum, Thraustochytrium roseum and Parietichytrium sp. and the gene to be disrupted or of which the expression is to be inhibited is a gene associated with the biosynthesis of a fatty acid.
摘要:
In a seat, in a state in which tilting of a back main frame around a tilting center is locked by a reclining mechanism, a lower end of a back joint link is turnably joined to a vehicle side. Thus, turning of a first link, a back sub frame and the back joint link is locked, and operation of a back link mechanism is locked. Therefore, a supporting rigidity from rear side of a back side portion can be enhanced by the back link mechanism (the back sub frame), and a crew sitting in the seat can be thoroughly retained.