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Class 257/E23.035 - Additional leads being multilayer (EPO)


Subclass of Class 257 - Active solid-state devices (e.g., transistors, solid-state diodes)
Definition: This subclass is indented under subclass E23.032. This subclass
No. of patents: 36
Last issue date: 05/06/2008


NumberTitleIssue Date
7368326Methods and apparatus to reduce growth formations on plated conductive leads
A process includes annealing one or more plated conductive leads at a predetermined temperature. The one or more plated conductive leads are plated with one or more layers, where each layer comprises a material. The predetermined temperature is greater than or equal...
05/06/2008
7361976Data carrier with a module with a reinforcement strip
In a lead-frame configuration (60), a module (70) and a data carrier (72), two connecting plates (12, 13) of the module (70), which are each intended for connection to a connecting contact or bump (47, 48) of a chip (41
04/22/2008
7227240Semiconductor device with wire bond inductor and method
A semiconductor device (10) includes a semiconductor die (20) and an inductor (30, 50) formed with a bonding wire (80) attached to a top surface (21) of the semiconductor die. The bonding wire is extended laterally a distance (L...
06/05/2007
6686651Multi-layer leadframe structure
A leadframe and a package including the leadframe are disclosed. At least one lead includes a nonconductive layer on the inner end segment of the lead set back from its inner end. An electrically conductive layer is on a surface of the nonconductive layer...
02/03/2004
6620648Multi-chip module with extension
A multi-chip module may include a pair of chips which are arranged one over the other on each side of a laminate layer. A central passage through the laminate layer provides a passage to wire bond a chip on a first side of the laminate layer to contacts o...
09/16/2003
6093957Multilayer lead frame structure that reduces cross-talk and semiconductor package using same and fabrication method thereof
A lead frame structure and semiconductor package using the same and fabrication method thereof is provided that decreases noise by providing prescribed impedances for leads of a lead frame. The lead frame structure for the semiconductor package includes a...
07/25/2000
6002165Multilayered lead frame for semiconductor packages
A multi layered semiconductor lead frame, and a semiconductor package fabricated using the lead frame are provided. The lead frame includes a lead plate having multiple die mounting sites configured for molding multiple semiconductor packages. The lead pl...
12/14/1999
5977617Semiconductor device having multilayer film carrier
A semiconductor device includes multilayer film carriers, a plurality of connection layers having innerleads protruded from the film carriers, and a semiconductor chip having electrode pads connected to the innerleads....
11/02/1999
5854094Process for manufacturing metal plane support for multi-layer lead frames
A process for manufacturing a metal plane support for making multi-layer lead frames adapted to be used for semiconductor devices. The lead frame support is made of a single thin metal strip having a plurality of lead frames continuously arranged in the l...
12/29/1998
5777265Multilayer molded plastic package design
A multi-layer integrated circuit package which contains layers of dielectric that substantially reduce metal migration between the metal conductors of the package. The package has metal baseplates that are separated from a lead frame by a plurality of die...
07/07/1998
5726490Semiconductor device
A leadframe assembly is used in which a ground metal plane (1) having a ground external lead (2), an annular insulating tape (4), a power supply metal plane (5) having a power supply external lead (6), an annular insulating tape (4') and a leadframe (7) h...
03/10/1998
5559369Ground plane for plastic encapsulated integrated circuit die packages
A plastic encapsulated integrated circuit package is disclosed which comprises a multilayer ground plane assembly bonded to a lead frame with an integrated circuit die bonded to the composite assembly. The multilayer ground plane assembly is first formed ...
09/24/1996
5410180Metal plane support for multi-layer lead frames and a process for manufacturing such frames
A metal plane support structure of a semiconductor device multi-layer lead frame having one or more metal planes, of different types, arranged in stacked and aligned relationship with and adhered to a corresponding lead frame. Metal planes of a common typ...
04/25/1995
5399809Multi-layer lead frame for a semiconductor device
A multi-layer lead frame for a semiconductor device includes a signal layer made of a metal strip having a signal pattern including a plurality of lead lines. A power supply or ground layer is adhered and laminated to the signal layer by means of an adhes...
03/21/1995
5309021Semiconductor device having particular power distribution interconnection arrangement
A semiconductor device according to the present invention has reduced inductance on a power supply line, a grounding line, and signal lines. In this invention, to reduce the length of the power supply connection and that of the grounding connection, a pow...
05/03/1994
5309024Multilayer package
The present invention provides a multilayer ceramic package, which comprises a conductive layer, formed like a square layer, applying a power voltage VDD or a ground voltage VSS to a semiconductor device, and having a square hole in ...
05/03/1994
5304844Semiconductor device and method of producing the same
A semiconductor device is provided having a semiconductor pellet that is arranged on a substantially central part of a film base in which a metal plate is overlaid with an insulating member, while inner leads are arranged on a peripheral part of the film ...
04/19/1994
5281556Process for manufacturing a multi-layer lead frame having a ground plane and a power supply plane
A process for manufacturing a multi-layer semiconductor lead frame comprising the step of adhering a lead frame strip to a metal power supply plane strip and a metal ground plane strip....
01/25/1994
5250844Multiple power/ground planes for tab
A TAB lead frame having concentric power/ground planes provides for even distribution of power and ground potentials about the periphery of an integrated circuit. An electrically conductive plane is divided into multiple concentric power/ground planes, ea...
10/05/1993
5250839Multi-layer leadframes, electrically conductive plates used therefor and production of such conductive plates
A multi-layer leadframe according to this invention is formed by laminating on a leadframe body an insulating layer and an electrically conductive layer in this order. The electrically conductive plate includes a planar portion and a given number of termi...
10/05/1993
5243496Molded case integrated circuit with a dynamic impedance reducing device
A device for reducing dynamic impedances in a molded case integrated circuit comprises a chip (15) and several annular metal planes (21, 22) separated from each other by an insulating film (27, 28), each plane comprising, on its external border, legs (23,...
09/07/1993
5237205Ground plane for plastic encapsulated integrated circuit die packages
A plastic encapsulated integrated circuit package is disclosed which comprises a multilayer ground plane assembly bonded to a lead frame with an integrated circuit die bonded to the composite assembly. The multilayer ground plane assembly is first formed ...
08/17/1993
5235209Multi-layer lead frame for a semiconductor device with contact geometry
A multi-layer lead frame for a semiconductor device comprises a lead frame body made of a metal strip having a first opening and a plurality of inner leads having respective innertips which define the opening. A metal plane independent from the lead frame...
08/10/1993
5231756Process for manufacturing a multi-layer lead frame
A process for manufacturing a multi-layer lead frame for a semiconductor device comprises two metal plains being adhered to each other via an insulation piece. An insulation strip is punched to cut the insulation piece, which is preliminary adhered to a m...
08/03/1993
5227662Composite lead frame and semiconductor device using the same
A composite lead frame comprising a lead frame (10), leads (28) supported on a plastic film (22 ') having a device hole (24), and a metal (14, 32) for mounting a semiconductor chip (34) is disclosed. The lead frame (10) has a plurality of inner lead porti...
07/13/1993
5212405Composite lead frame
A composite lead frame in which an island formed with a greater diameter than that of a semiconductor device to be mounted is attached to a lead frame main body having leads being integrally protruded inward, the top ends of the leads are bonded with corr...
05/18/1993
5208188Process for making a multilayer lead frame assembly for an integrated circuit structure and multilayer integrated circuit die package formed by such process
A method is described for making a multilayer lead frame assembly for an integrated circuit die package comprising a planar metal lead frame; at least one layer of insulating tape, provided with a b-stage adhesive on each surface thereof; and a planar met...
05/04/1993
5196725High pin count and multi-layer wiring lead frame
A high pin count and multi-layer lead frame according to the present invention which has a short pitch, high density lead pattern and at the same time, enhanced transmission characteristics for high-frequency signals includes at least one pair of conducti...
03/23/1993
5105257Packaged semiconductor device and semiconductor device packaging element
A packaged semiconductor device includes trapezoidal power leads and an earth lead in a resin package. The power and earth leads have a large area, radiate heat, and reduce inductance, improving the electrical characteristics of the packaged semiconductor...
04/14/1992
5068708Ground plane for plastic encapsulated integrated circuit die packages
A plastic encapsulated integrated circuit package is disclosed which comprises a multilayer ground plane assembly bonded to a lead frame with an integrated circuit die bonded to the composite assembly. The multilayer ground plane assembly is first formed ...
11/26/1991
5032895Semiconductor device and method of producing the same
A semiconductor device comprising the fact that a semiconductor pellet is arranged on a substantially central part of a film base in which a metal plate is overlaid with an insulating member, while inner leads are arranged on a peripheral part of the film...
07/16/1991
5025114Multi-layer lead frames for integrated circuit packages
A composite leadframe is provided. The leadframe comprises a rigid metal portion electrically interconnected to a flexible multi-layer portion. When sealed within an electronic package, the composite leadframe provides a higher lead density than achieved ...
06/18/1991
4994936Molded integrated circuit package incorporating decoupling capacitor
A decoupling capacitor is attached directly to an IC lead frame and thereafter encapsulated within a molded package along with an IC chip resulting in a decoupling scheme which is internal to the molded IC package. The capacitor preferably comprises a thi...
02/19/1991
4975761High performance plastic encapsulated package for integrated circuit die
A high performance plastic-encapsulated integrated circuit package is disclosed having both improved heat dissipation and low ground noise comprising one or more separate ground and/or power planes below the signal lines which includes an electrically con...
12/04/1990
4891687Multi-layer molded plastic IC package
A multi-layered molded plastic package for encapsulating an integrated circuit is described. The package includes a carrier having a double-layered metal plate which are separated by an adhesive coated insulation tape. A second insulating tape layer is us...
01/02/1990
4835120Method of making a multilayer molded plastic IC package
A multi-layered molded plastic package for encapsulating an integrated circuit is described. The package includes a carrier having a double-layered metal plate which are separated by an adhesive coated insulation tape. A second insulating tape layer is us...
05/30/1989
 
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