摘要:
The invention relates to a semiconductor package of a flip chip and a method for making the semiconductor package. The semiconductor chip comprises a metal-oxide-semiconductor field effect transistor. On a die paddle including a first base, a second base and a third base, half-etching or punching is performed on the top surfaces of the first base and the second base to obtain plurality of grooves that divide the top surface of the first base into a plurality of areas comprising multiple first connecting areas, and divide the top surface of the second base into a plurality of areas comprising at least a second connecting area. The semiconductor chip is connected to the die paddle at the first connecting areas and the second connecting area.
摘要:
A system and method are provided for verifying data copies and reverifying the copies over the life span of media according to a verification policy. Characteristics of media and use of media are tracked to provide metrics which may be used to dynamically reevaluate and reassign verification policies to optimize media usage. Copies that fail verification operations may be repaired by repeating a storage operation for recent copies or by substituting a close temporal copy of the failed copy.
摘要:
An apparatus for stripping metal sheets from a cathode blank comprises: a frame; a stripping assembly disposed on the frame; and a receiving mechanism comprising at least one receiving platform which is disposed on the frame for receiving the deposited metal sheets. The stripping assembly comprises: at least one clipping mechanism for clipping a conductive member on an upper end of the cathode blank; first and second stripping mechanisms for stripping the deposited metal sheets from two surfaces of the cathode blank; a bottom positioning mechanism for positioning a lower end of the cathode blank; and first and second loosening mechanisms each comprising a push rod which is movably disposed on the frame in the transversal direction for pushing the cathode blank.
摘要:
A package structure for DC-DC converter disclosed herein can reduce the number of encapsulated elements as a low-side MOSFET chip can be stacked above the high-side MOSFET chip of a first die pad, through die pads of different thicknesses or interposers with joint parts of different thicknesses; moreover, it further reduces the size of the entire semiconductor package as a number of bond wires are contained in the space between the controller and the low-side MOSFET chip. Moreover, electrical connection between the top source electrode pin and the bottom source electrode pin of the low-side MOSFET chip is realized with a metal joint plate, such that when the DC-DC converter is sealed with plastic, the metal joint plate can be exposed outside to improve the thermal performance and effectively reduce the thickness of the semiconductor package.
摘要:
A dual-leadframe multi-chip package comprises a first leadframe with a first die pad, and a second leadframe with a second die pad; a first chip mounted on the first die pad functioning as a high-side MOSFET and second chip mounted on the second die pad functioning as a low-side MOSFET. The package may further comprises a bypass capacity configured as a third chip mounted on the first die pad or integrated with the first chip. The package may further comprise a three-dimensional connecting plate formed as an integrated structure as the second die pad for electrically connecting a top contact area of the first chip to a bottom contact area of the second chip. A top connecting plate connects a top contact area of the second chip and a top contact area of the third chip to an outer pin of the first leadframe.
摘要:
A method in a computer system for retrieving data from one of multiple copies of the data is provided, referred to as the data management system. The data management system receives a request identifying data object to be accessed. Then, the data management system queries a metabase to locate data copies that contain the identified data object, wherein the data copies are created from similar source data, and wherein for each data copy the metabase contains an indication of the availability of the copy relative to other copies. Next, the data management system determines one of the located data copies to use to access the identified data object, wherein the determination is made based on the indicated availability contained in the metabase for each of the located data copies. Then, the data management system accesses the identified data object using the determined one of the located data copies.
摘要:
A package structure for DC-DC converter disclosed herein can reduce the number of encapsulated elements as a low-side MOSFET chip can be stacked above the high-side MOSFET chip of a first die pad, through die pads of different thicknesses or interposers with joint parts of different thicknesses; moreover, it further reduces the size of the entire semiconductor package as a number of bond wires are contained in the space between the controller and the low-side MOSFET chip. Moreover, electrical connection between the top source electrode pin and the bottom source electrode pin of the low-side MOSFET chip is realized with a metal joint plate, such that when the DC-DC converter is sealed with plastic, the metal joint plate can be exposed outside to improve the thermal performance and effectively reduce the thickness of the semiconductor package.
摘要:
A method in a computer system for retrieving data from one of multiple copies of the data is provided, referred to as the data management system. The data management system receives a request identifying at least one data object to be accessed. Then, the data management system queries a metabase to locate data copies that contain the identified at least one data object, wherein the data copies are created from similar source data, and wherein for each data copy the metabase contains an indication of the availability of the copy relative to other copies. Next, the data management system determines one of the located data copies to use to access the identified at least one data object, wherein the determination is made based on the indicated availability contained in the metabase for each of the located data copies. Then, the data management system accesses the identified at least one data object using the determined one of the located data copies.
摘要:
A lead frame-based discrete power inductor is disclosed. The power inductor includes top and bottom lead frames, the leads of which form a coil around a single closed-loop magnetic core. The coil includes interconnections between inner and outer contact sections of the top and bottom lead frames, the magnetic core being sandwiched between the top and bottom lead frames. Ones of the leads of the top and bottom lead frames have a generally non-linear, stepped configuration such that the leads of the top lead frame couple adjacent leads of the bottom lead frame about the magnetic core to form the coil.
摘要:
A minimum torque module selectively determines a first minimum propulsion torque based on second and third minimum propulsion torques when a torque converter clutch is in unlocked and locked states, respectively. A zero pedal torque module selectively sets a zero pedal torque equal to the first minimum propulsion torque. A pedal request module determines a pedal torque request based on an accelerator pedal position, a vehicle speed, and the zero pedal torque. A driver request module determines a driver axle torque request based on the pedal torque request. A shaping module selectively shapes the driver axle torque request into a shaped driver axle torque request. A conversion module converts the first minimum propulsion torque into a minimum axle torque. A final driver request module sets a final driver axle torque request equal to a greater of the shaped driver axle torque request and the minimum axle torque.