摘要:
A flip chip device may have a semiconductor chip with an active surface on which chip pads and a protective layer may be provided. Solder bumps may be provided on the active surface and electrically connected to the chip pads. And a solder bar may be provided on a portion of the protective layer. The solder bar may disperse thermal stress produced in the solder bumps. A metal core may be embedded within the solder bar. The flip chip device may be mounted on and flip-chip bonded to a substrate. The substrate may have land pads to which the solder bumps and the solder bar may be mechanically joined. The solder bar increases a joint area between the flip chip device and the substrate and reinforces solder connections therebetween.
摘要:
A water-soluble polymeric adhesion promoter is represented by the following formula (I): wherein R is a hydrogen atom, a hydroxyl group or a lower alkyl group having 1 to 4 carbon atoms, and m and k are numbers selected such that m/k is in the range from about 1/0.001 to about 1/0.1, and such that that the polymer (I) has a weight average molecular weight of about 3,000 to about 600,000.
摘要:
The connections device of an actuator for side mirrors of an automobile, for a back observation, is constructed by forming its main body made of synthetic resin material to reduce weight of an actuator itself and curtail a manufacture cost, and by inserting metal support plates into both sides of the main body inside so as to support and rotate the gear in a part having a danger of a damage caused owing to rotating components such as a gear etc. to prevent the main body from being damaged, whereby resulting in a light weight of the actuator and lessening a manufacture cost through a use of the main body made of the synthetic resin material, and in lengthening a life of components together with a maintenance of a mechanical strength through a use of the support plates made of metal inserted into both sides of the main body inside.
摘要:
A lead-on-chip semiconductor device package is formed by attaching a lead frame having a single adhesive layer to a semiconductor chip. Electrode pads of the chip are electrically connected by bonding wires and mechanically connected by the adhesive layer to the lead frame, and then encapsulated by an encapsulant such as molding compound. The adhesive layer is formed from a liquid adhesive having a certain viscosity. The adhesive material is continuously applied to spaces between adjacent inner leads as well as the top surface of the leads and then cured. The leads are disposed at the same intervals and include some side leads with a larger width in order to form the adhesive layer with a uniform thickness. Thermoplastic resins are preferably used as the adhesive, but thermosetting resins may be used as well. In the case of thermoplastic resins, the temperature of a cure step is about 200.degree. C. and that of chip attachment step is about 400.degree. C.
摘要:
Provided herein as a method of manufacturing a decorative flower, including forming a stem by cutting a leather sheet into two rectangular stem leather pieces and adhering the rear surfaces of the stem leather pieces to each other using an adhesive, folding a petal leather piece by cutting a leather sheet into the rectangular petal leather piece, applying the adhesive to first adhesive surfaces of the petal leather piece and folding the petal leather piece in half in the horizontal direction, making cuts in the petal leather piece in the vertical direction at designated intervals, applying the adhesive to a second adhesive surface of the petal leather piece and rolling the petal leather piece into a cylindrical shape about the stem, forming petals by spreading parts formed by the cuts, and decorating the lower portion of the stem leather piece with a running stitch after formation of the petals.
摘要:
Provided are a contents receiving apparatus for obtaining application control information and a method thereof, the method comprising: receiving application control information, including effective duration information, from a server; determining whether a current control time point is within a time period represented by the effective duration information; and selectively requesting other application control information from the server in response to the determining.
摘要:
A dual-standby terminal and a method for operating wireless communication unit are disclosed. The dual-standby terminal includes: a plurality of wireless communication units; a plurality of low-noise amplifiers located on reception paths of the wireless communication units, respectively; and a controller. The controller enables all of the plurality of low-noise amplifiers when the dual-standby terminal performs a simultaneous call. The controller also enables part of the plurality of low-noise amplifiers when the dual-standby terminal performs a single call or is operated in a standby state.
摘要:
Provided are a method and a device for booting a host embodying a downloadable conditional access system (DCAS), wherein one of a plurality of pre-determined booting modes is decided as a booting mode of the host based on first information indicating whether a host can communicate with a broadcasting service provider and second information indicating whether a software-based security client providing information required for decrypting broadcasting data is installed to a hardware-based security module connected to the host, and the host is booted in the decided booting mode.
摘要:
A projection type display apparatus is capable of significantly reducing operational noise of a color wheel. The projection type display apparatus includes a color wheel, a color wheel assembly in which the color wheel is installed, and a noise damping section which changes air flow caused by a rotation of the color wheel so as to reduce the noise.
摘要:
A method of controlling trick modes for a transport stream capable of easily determining a reproducing position corresponding to a trick mode execution mode on a transport stream of a 3D image is provided. The method includes, if a trick mode execution command for a transport stream is received, calculating a reproducing range on a first transport stream corresponding to a received trick mode execution command, calculating a reproducing range on a second transport stream based on a calculated reproduction range of the first transport stream, and controlling to transmit the first transport stream corresponding to the calculated reproducing range of the first transport stream and the second transport stream corresponding to the calculated reproducing range of the second transport stream.