摘要:
A high power Doherty amplifier circuit having at least one input terminal and at least one output terminal comprising at least one carrier transistor (30) forming a main amplifier stage; at least one peak transistor (32) forming a peak amplifier stage; a first input line (27) connecting the input terminal (28) to an input (29) of the carrier transistor (30); a second input line (31) connecting the input terminal (28) to an input (63) of the peak transistor (32); a first output line (33) connecting the output terminal (56) to an output (49) of the carrier transistor (30); and a second output line (35) connecting the output terminal (56) to an output (75) of the peak transistor (32). A high power Doherty amplifier circuit package comprising a support structure (104) supporting circuit elements of the Doherty amplifier circuit; at least one input terminal (102) and at least one output terminal (96) both terminals being supported on the support structure (104); at least one carrier transistor (92) forming a main amplifier stage and at least one peak transistor (98) forming a peak amplifier stage both transistors being supported on the support structure (104); a first input network (106) connecting the input terminal (102) to an input of the carrier transistor (92); a second input network (100, 114, 116) connecting the input terminal (102) to an input of the peak transistor (98); a first output network (94, 108, 110) connecting the output terminal (96) to an output of the carrier transistor (92); and a second output network (112) connecting the output terminal (96) to an output of the peak transistor (98), and wherein the input and output networks are artificial transmission lines comprising serial circuits and / or parallel circuits of at least one capacitance and / or at least one inductance.
摘要:
An unassembled stacked IC device (60) includes an unassembled tier. (41) The unassembled stacked IC device also includes a first unpatterned layer (610) on the unassembled tier. The first unpatterned layer protects the unassembled tier from ESD events.
摘要:
A method for producing an assembly of electronic components and assemblies in accord with this, wherein the electronic components have component terminals. A conductive firmament having a first side and a second side is provided. Then the component terminals are connected to the first side of the firmament with an anisotropic conductor. A pattern is applied to the second side of said firmament. And portions of the firmament are removed based on the pattern, such that remaining portions of said firmament form the electrical circuit interconnecting the component terminals.
摘要:
The anisotropically conductive adhesive composition according to the present invention is an anisotropically conductive adhesive composition to connect a first circuit member where a first circuit electrode is formed on the principal surface of a first substrate and a second circuit member where a second circuit electrode is formed on the principal surface of a second substrate with the first circuit electrode and the second circuit electrode placed opposite, wherein the anisotropically conductive adhesive composition comprises an adhesive and a coated particle where at least part of the surface of a conductive particle is coated with an insulating material containing a polymer electrolyte and an inorganic oxide fine particle.
摘要:
A method for improving heat dissipation in an encapsulated electronic package usually referred to as a chip-size SAW package. The package comprises one or more acoustic-wave components fabricated on a die, which is disposed on an electrically non-conductive carrier separated by electrically conducting bumps. The top of the package is covered by a laminate and a hermetic seal layer. Heat dissipation can be improved by removing a part of the laminate and then depositing a layer of thermal conducting material on the package, and by providing one or more heat conducting paths through the carrier.
摘要:
Overmolded lenses and certain fabrication techniques are described for LED structures. In one embodiment, thin YAG phosphor plates are formed and affixed over blue LEDs mounted on a submount wafer. A clear lens is then molded over each LED structure during a single molding process. The LEDs are then separated from the wafer. The molded lens may include red phosphor to generate a warmer white light. In another embodiment, the phosphor plates are first temporarily mounted on a backplate, and a lens containing a red phosphor is molded over the phosphor plates. The plates with overmolded lenses are removed from the backplate and affixed to the top of an energizing LED. A clear lens is then molded over each LED structure. The shape of the molded phosphor-loaded lenses may be designed to improve the color vs. angle uniformity. Multiple dies may be encapsulated by a single lens. In another embodiment, a prefabricated collimating lens is glued to the flat top of an overmolded lens.
摘要:
To provide a phosphor emitting green fluorescence and having such superior characteristics as excellent conversion efficiency of blue light or near-ultraviolet light and excellent color purity, a phosphor satisfying the following conditions (i) to (v) : (i) the wavelength of emission peak thereof is 510 nm or longer and 542 nm or shorter, when excited with light of 400 nm or 455 nm (ii) the full width at half maximum of emission peak thereof is 75 nm or narrower, when excited with light of 400 nm or 455 nm, (iii) the external quantum efficiency, which is defined by the formula below, is 0.42 or larger, when excited with light of 400 nm or 455 nm, external quantum efficiency = internal quantum efficiency × absorption efficiency (iv) a part of its surface comprises substance containing oxygen, and (v) it contains a bivalent and trivalent metal element (M II element), and its molar ratio to the total bivalent elements is larger than 1 % and smaller than 15 %.
摘要:
A method of three-dimensionally integrating elements such as singulated die or wafers and an integrated structure having connected elements such as singulated dies or wafers. Either or both of the die and wafer may have semiconductor devices formed therein. A first element having a first contact structure (12, 82) is bonded to a second element having a second contact structure (17, 87). First and second contact structures can be exposed at bonding and electrically interconnected as a result of the bonding. A via (50, 55) may be etched and filled after bonding to expose and form an electrical interconnect to interconnected first and second contact structures and provide electrical access to this interconnect from a surface.; Alternatively, first and/or second contact structures are not exposed at bonding, and a via is etched and filled after bonding to electrically interconnect first and second contact structures and provide electrical access to interconnected first and second contact structure to a surface. Also, a device may be formed in a first substrate, the device being disposed in a device region of the first substrate and having a first contact structure. A via may be etched, or etched and filled, through the device region and into the first substrate before bonding and the first substrate thinned to expose the via, or filled via after bonding.
摘要:
A high frequency power device (100) is described comprising a high frequency power transistor (102) having a first main electrode, a second main electrode acting as output electrode and a control electrode, and an output compensation circuit (104) for compensating parasitic output capacitance of the transistor (102). The output compensation circuit is physically positioned relative to the transistor such that a shorter bond wire between the output electrode of the transistor and an output lead of the high frequency power device is obtained. The output compensation circuit (104) therefore is physically located in between an input lead (108) of the high frequency power device (100) and the transistor (102). The inductance introduced by the bond wire Lcomp from the output compensation circuit (104) to the output electrode of the transistor (102) can be used as a feedback signal. Selection of the mutual inductive coupling between the bond wire LcOmP and a bond wire connected to the pre-matching circuit (106) allows to further optimize the properties of the high frequency power device.
摘要:
The present invention provides a memory card equipped with an interface controller connected to external connecting terminals, a memory connected to the interface controller, and a security controller connected to the interface controller. A second external connecting terminal capable of supplying an operating power supply to the security controller is provided aside from a first external connecting terminal which supplies an operating power supply to the interface controller and the memory. An interface unit of the interface controller connected to the security controller receives the operating power supply from the second external connecting terminal and thereby enables a stop of the supply of the operating power supply from the first external connecting terminal. Even if the supply of the operating power supply to the interface controller is cut off, the output of the interface unit is not brought to an indefinite state.