Abstract:
PROBLEM TO BE SOLVED: To provide a PDA device and a PDA microprocessor controller that allow simultaneous operation of multiple functions. SOLUTION: Simultaneous multiple functions are implemented by connecting all of the functional devices to a host controller 11 and multiplexing command signals and content data to and from the host controller to individual devices. The interconnection may be implemented using a dynamic switching matrix that allows the host controller to switch from one functional device to another using signal response from the functional devices. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an integrated passive device (IPD) designated to allow implementation of a cellular RF and Wi-Fi RF in a single hand held device. SOLUTION: To address the problem of RF interference, a thin film RF high rejection bandpass filter is formed in an IPD implementation. The IPD implementation preferably uses silicon as the substrate material. This allows the thin film RF high rejection bandpass filter to be made using silicon processing technology, and thus produce low cost filters that still meet stringent performance requirements demanded due to the co-existing RF units. In preferred embodiments of the invention, wafer level processing using silicon substrates adds to the cost effective manufacture of the high functional IPDs. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a flip bonding double substrate inductor a part of which is built on an IPD (Integrated Passive Device) base substrate and a fitting part of which is built on a cover (a second) substrate. SOLUTION: Next the cover substrate is reversed and is bonded on the base substrate, thereby the two parts of the inductor are fitted. By this method, the inductor of two layers can be built without using a substrate of plural layers. Furthermore, a flip bonding double substrate inductor of four layers is formed by using two substrates each of which is a substrate of two layers. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method to manufacture an integrated passive device, an integrated passive device, and a substrate thereof. SOLUTION: The integrated passive device (IPD) is formed on a polycrystalline silicon substrate. The method for manufacturing the IPD begins with a single-crystal handle wafer, deposits a thick polysilicon substrate layer on one or both faces of the begining wafer, forms the IPD on one of the multiple polysilicon substrate layers and removes the handle wafer. Thus, the polysilicon substrate is manufactured. In a preferred embodiment, the single-crystal silicon handle wafer is a silicon wafer that is rejected from a single-crystal silicon wafer manufacturing line. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an MCM package configured of an RF/IPD package improving a heat management. SOLUTION: An IPD board 24 is suitable for a system board 21 by using a thin RF chip 26 mounted in a stand-off between the IPD board 24 and the system board 21. An RF interconnection is conducted between the top section of the RF chip 26 and the bottom section of the IPD board 24. A heat is dissipated by connecting a heat sink layer on the RF chip 26 to the heat sink layer on the system board. The heat sink also fills the role as a grounding-plane connecting section. The combination of other types of integrators is manufactured by using the approach. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To explain the integration passive device (IPD) formed on a silicon substrate covered with an oxide layer by this description. SOLUTION: Undesirable charge storage in a silicon/oxide interface is immobilized by forming a trap center on a silicon surface. The trap center is manufactured from a polysilicon layer inserted between the silicon substrate and an oxide layer. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an SD/MMC type card satisfying an existing size standard and improving mounting density of components. SOLUTION: In this PDA (SD/MMC) device and a PDA card, a base board for mounting PDA components has two tiers. Components with a high profile are mounted on the lower tier, and devices with normal or low heights are mounted on the upper tier. The upper tier is contained in the portion of the card conforming to, for example, the 1.4 mm SDA standard thickness, while the lower tier is formed in the portion of the card that allows a larger thickness, for example SDA standard thickness 2.1 mm. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a multi-chip module (MCM) that contains an integrated passive device (IPD) as a carrier substrate (IPD MCM). SOLUTION: Parasitic electrical interaction is controlled at one or both interfaces of the IPD, either by eliminating metal from the interfaces, or by the selective use of metal in parts of the MCM that are remote from sensitive device components. The sensitive device components are mainly analog circuit components, especially RF inductor elements. In the IPD layout, the components likely to be affected are separated from other components. This allows the implementation of selective metal approach. It also allows parasitic interaction on top of the IPD substrate to be reduced by the selective placement of IC semiconductor chips and IC chip ground planes. In the preferred embodiments of the IPD MCM, the IPD substrate is polycrystalline. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
Balun transformers are described wherein multiple transformer loops are implemented in a stacked design with the primary and secondary loops verlying one another. By aligning the loops in a vertical direction, instead of offsetting the loops, the area of the device is reduced. Multiple transformer loops are nested on each level, and the transformer loops on a given level are connected together using a crossover located on a different level.
Abstract:
INTEGRATED PASSIVE DEVICES WITH HIGH Q INDUCTORS The specification describes flip bonded dual substrate inductors wherein a portion of the inductor is constructed on a base IPD substrate, a mating portion of the inductor is constructed on a cover (second) substrate. The cover substrate is then flip bonded to the base substrate, thus mating the two portions of the inductor. Using this approach, a two level inductor can be constructed without using a multilevel substrate. Using two two-level substrates yields a four-level flip bonded dual substrate inductor.