摘要:
A thermal enhanced ball grid array package is provided. The substrate for the package includes a metal core layer and at least a first patterned wiring layer provided thereon. A first insulating layer is provided between the first patterned wiring layer and the metal core layer. At least a second patterned wiring layer is provided on the substrate, opposite to the surface having the first patterned wiring layer. A second insulating layer having solder balls between the second patterned wiring layer and the metal core layer. The second patterned wiring layer is electrically connected to the first patterned wiring layer. Blind vias are provided in the second patterned wiring layer and the second insulating layer. A heat conductive material or solder material is filled into the blind vias to form thermal balls. The heat from the chip to the metal core layer is transferred directly through the thermal balls.
摘要:
A connector for a microphone includes a connecting member provided with a hook having a slot, a tubular member having an end formed with a plurality of hooks and fitted on the connecting member, an adjusting ring having a flange engaged with the hooks of the tubular member and an inner side formed with internal threads, and a fixing collar having an end formed with external threads engageable with the internal threads of the adjusting ring and a longitudinal notch engageable with the slot of the connecting member, whereby the microphone can be firmly and easily engaged with the connector.
摘要:
A semiconductor package includes a substrate and a semiconductor device. The semiconductor device includes a body having a center, a layer disposed adjacent to the body, and a plurality of conductive pillars configured to electrically connect the semiconductor device to the substrate. The layer defines a plurality of openings. Each of the plurality of conductive pillars extends at least partially through a corresponding one of the plurality of openings. An offset between a first central axis of the each of the plurality of conductive pillars and a second central axis of the corresponding one of the plurality of openings varies with distance between the first central axis and the center of the body. The second central axis of the corresponding one of the plurality of openings is disposed between the first central axis of the each of the plurality of conductive pillars and the center of the body.
摘要:
A sun-tracking solar energy collector apparatus includes an east-west driving shaft body and a south-north driving shaft body which are coupled in the shape of a cross. A first driving member of an east-west shaft sleeve of the east-west driving shaft body is actuated to turn the south-north driving shaft body in an east-west direction. A second driving member of the south-north driving shaft body is driven by the first driving member to turn an east-west driving shaft of the east-west driving shaft body in a south-north direction and to drive an annular member which is connected with the ends of the east-west driving shaft, such that a holding rack assembly connected with the annular member is actuated in east-west and south-north directions. Solar energy collector modules of the holding rack assembly can track to collect solar energy. Due to the base body in cooperation with the effect of tracking sun, the area occupied by the base body is larger. Thus, the surroundings of the base body can be adapted for parking, charging of a motor-driven vehicle and the like, enhancing its total generating capacity and providing better usage.
摘要:
A method of producing bicycle ratchet bushing is provided, wherein an alloyed fundamental material is applied to the processes of a modeling process and a detailing treatment to form a product of bicycle ratchet bushing. Wherein, when the processes of drilling and tapping a hole of the modeling process are completed, the tapped hole of the workpiece is connected to a screw rod, and the screw rod is clamped by a drawing machine, so that the workpiece can be penetrated through the mold of the drawing machine to proceed with the drawing process. When the drawing process is working, it is not necessary to apply a head-hitting process to the workpiece as the conventional drawing method does, therefore the outer teeth of the ratchet of the workpiece will not be deformed by an external force, and can penetrated into the mold for further drawing process, therefore the whole manufacturing processes can be controlled efficiently.
摘要:
A separative extended gate field effect transistor based vitamin C sensor includes: a substrate; a patterned conductive layer on the substrate, including a first electrode region array, at least two first contact regions, a second electrode region and a second contact region; a graphite-based paste layer on the first electrode region array; a ruthenium dioxide sensing layer on the graphite-based paste layer and electrically connected to the first contact region; a vitamin C enzyme layer on the ruthenium dioxide sensing layer; and a reference electrode on the second electrode region electrically connected to the second contact region.
摘要:
A heat sink structure according to the present invention is provided. The heat sink has a through opening extending from the upper surface through to the lower surface. A solder is disposed in the through opening and on the upper and lower surfaces of the heat sink, wherein the portion of the solder in the through opening is connected with the portions of the solder on the upper and lower surfaces.
摘要:
A fixing frame for a solar energy module includes a frame body having inserting grooves for a supporting board and a locking chute for a solar panel, wherein the locking chute contains locking flanges. An I-shaped supporting board is installed into the inserting grooves of the frame body so that it can efficiently resist external forces. During assembly, the solar panel is inserted into the locking chute of the frame body and its top edge and bottom edge are secured by the locking flanges of the chute to ensure stability and high force resistance.
摘要:
An electrical box assembly for a solar energy module that includes a lid having outer flanges and a box having slide chutes. The electrical box is assembled by gliding the outer flanges of the lid into the chutes of the box. Using a method, the object will not easily come apart. After the lid has been assembled with the box and covers the box, the through holes of the lid will corresponded to the fastener receiving apertures of the box allowing the fasteners to fix together. A set of shelves includes a first shelf and a second shelf, which can be secured into the first slot and the second slot of the box individually, allowing for electrical parts or devices to be installed on the shelves. In addition, the box, the lid and the shelves are all made of aluminum alloys which can enhance the efficiency of the heat radiation, accomplishing the goal of high heat conductivity and low rate of malfunction.
摘要:
The present invention discloses an Internet automatic electrical data system that comprises a process controller used to process the analyzing order for IC (integrated circuit) packages entrusted by clients. A database is used to store the input parameters of IC packages and parameters database is used to provide the condition parameters relative to the model of IC package entrusted by clients. An electrical simulation and analyzing software is introduced to analyze the parameters input by clients and the condition parameters provided by the condition parameter database. A report form generator is used to generate the report form of analyzing result and a replying means is used to send the report forms to the clients.