摘要:
One aspect of this disclosure is a power amplifier module that includes a power amplifier configured to amplify a radio frequency (RF) signal and an RF transmission line electrically coupled to an output of the power amplifier. The power amplifier includes a heterojunction bipolar transistor and a p-type field effect transistor, in which a semiconductor portion of the p-type field effect transistor corresponds to a channel includes the same type of semiconductor material as a collector layer of the heterojunction bipolar transistor. The RF transmission line includes a nickel layer with a thickness that is less than 0.5 um, a conductive layer under the nickel layer, a palladium layer over the nickel layer, and a gold layer over the palladium layer. Other embodiments of the module are provided along with related methods and components thereof.
摘要:
One aspect of this disclosure is a power amplifier module that includes a first die including a power amplifier and a passive component, the power amplifier including a bipolar transistor having a collector, a base abutting the collector, and an emitter, the collector having a doping concentration of at least about 3×1016 cm−3 at an interface with the base, the collector also having a grading in which doping concentration increases away from the base; and a second die including a bias circuit configured to generate a bias signal based at least partly on an indication of an electrical property of the passive component of the first die and to provide the bias signal to the power amplifier. Other embodiments of the module are provided along with related methods and components thereof.
摘要:
A power amplifier module includes a power amplifier including a GaAs bipolar transistor having a collector, a base abutting the collector, and an emitter, the collector having a doping concentration of at least about 3×1016 cm−3 at a junction with the base, the collector also having at least a first grading in which doping concentration increases away from the base; and an RF transmission line driven by the power amplifier, the RF transmission line including a conductive layer and finish plating on the conductive layer, the finish plating including a gold layer, a palladium layer proximate the gold layer, and a diffusion barrier layer proximate the palladium layer, the diffusion barrier layer including nickel and having a thickness that is less than about the skin depth of nickel at 0.9 GHz. Other embodiments of the module are provided along with related methods and components thereof.
摘要:
An integrated circuit (IC) device includes a polymer substrate having a topside surface and a bottomside surface opposite the topside surface, a plurality of through-holes that extend from the topside surface to the bottomside surface, and a plurality of bottom metal pads on the bottomside surface positioned over the plurality of through-holes. At least one IC die having an active topside including a plurality of bond pads and a second side is affixed to the topside surface. Bonding features are coupled to the plurality of bond pads for coupling respective ones of the plurality of bond pads to the plurality bottom metal pads. The bonding features extend into the through-holes to contact the bottom metal pads.
摘要:
Semiconductor packages with a reduced-height die pad and associated methods for making and using these semiconductor packages are described. The semiconductor packages include a lead frame with die pad of reduced height so the die pad has a height that is less than that of the lead frame. The semiconductor packages may comprise an isolated and/or a fused lead finger with a portion of an upper surface of the isolated lead finger that is removed to form a concavity to which one or more bond wires may be bonded. The upper surface of the isolated lead finger may be removed so the isolated lead finger has a height that is less than the height of the lead frame. And a perimeter of a bottom surface of the fused lead finger may be removed. Other embodiments are described.
摘要:
One aspect of this disclosure is a power amplifier module that includes a power amplifier die including a power amplifier configured to amplify a radio frequency (RF) signal, the power amplifier including a heterojunction bipolar transistor (HBT) and a p-type field effect transistor (PFET), the PFET including a semiconductor segment that includes substantially the same material as a layer of a collector of the HBT, the semiconductor segment corresponding to a channel of the PFET; a load line electrically connected to an output of the power amplifier and configured to provide impedance matching at a fundamental frequency of the RF signal; and a harmonic termination circuit electrically connected to the output of the power amplifier and configured to terminate at a phase corresponding to a harmonic frequency of the RF signal. Other embodiments of the module are provided along with related methods and components thereof.
摘要:
One aspect of this disclosure is a power amplifier module that includes a power amplifier configured to amplify a radio frequency (RF) signal and tantalum nitride terminated through wafer via. The power amplifier includes a heterojunction bipolar transistor and a p-type field effect transistor, in which a semiconductor portion of the p-type field effect transistor corresponds to a channel includes the same type of semiconductor material as a collector layer of the heterojunction bipolar transistor. A metal layer in the tantalum nitride terminated through wafer via is included in an electrical connection between the power amplifier on a front side of a substrate and a conductive layer on a back side of the substrate. Other embodiments of the module are provided along with related methods and components thereof.
摘要:
One aspect of this disclosure is a power amplifier module that includes a power amplifier die including a power amplifier configured to amplify a radio frequency (RF) signal, the power amplifier including a heterojunction bipolar transistor (HBT) and a p-type field effect transistor (PFET), the PFET including a semiconductor segment that includes substantially the same material as a layer of a collector of the HBT, the semiconductor segment corresponding to a channel of the PFET; a load line electrically connected to an output of the power amplifier and configured to provide impedance matching at a fundamental frequency of the RF signal; and a harmonic termination circuit electrically connected to the output of the power amplifier and configured to terminate at a phase corresponding to a harmonic frequency of the RF signal. Other embodiments of the module are provided along with related methods and components thereof.
摘要:
A leadframe enhancing molding compound bondability includes a chip base and a pin holder. The chip bases includes a chip pad and a support, wherein the chip pad includes a side protrusion extending out of the support, and the side protrusion has a lower surface, and the support has a sidewall, and wherein the lower surface and the sidewall interconnect at an intersection line, and the lower surface is formed upwardly with a recess. Further, a pin holder includes a pin stand and a seat, wherein the pin stand has an edge portion extending out of the seat, the edge portion has a lower surface, the seat has a sidewall, and the lower surface and the sidewall interconnect at a crossing line. The lower surface of the pin stand is formed upward with a recess. As such, the bondability between the leadframe and the molding compound can be greatly enhanced.
摘要:
The present invention discloses a chip package carrier and a fabrication method, which have the advantages of high reliability, thickness reduction and the scale reduction. The carrier and the method uses blind holes., which penetrates the substrate but external traces and external bonding pads, which cover the external traces. A chip can be installed and encapsulated directly on a first surface.