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Class Information
Number: 257/690
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Housing or package > With contact or lead
Description: Subject matter wherein the device is provided with a contact or lead, in addition to or as part of the package or housing.


Sub-classes under this class:

Class Number Class Name Patents
257/691 Having power distribution means (e.g., bus structure) 1,067
257/700 Multiple contact layers separated from each other by insulator means and forming part of a package or housing (e.g., plural ceramic layer package) 1,189
257/692 With particular lead geometry 1,252
257/698 With specific electrical feedthrough structure 1,217


Patents under this class:
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Patent Number Title Of Patent Date Issued
6590279 Dual-chip integrated circuit package and method of manufacturing the same Jul. 8, 2003
6590283 Method for hermetic leadless device interconnect using a submount Jul. 8, 2003
6591410 Six-to-one signal/power ratio bump and trace pattern for flip chip design Jul. 8, 2003
6586824 Reduced thickness packaged electronic device Jul. 1, 2003
6585904 Method for the manufacture of printed circuit boards with plated resistors Jul. 1, 2003
6586273 Semiconductor device manufacturing method having a step of applying a copper foil on a substrate as a part of a wiring connecting an electrode pad to a mounting terminal Jul. 1, 2003
6580164 Semiconductor device and method of manufacturing same Jun. 17, 2003
6580175 Semiconductor layout structure for a conductive layer and contact hole Jun. 17, 2003
6576984 Semiconductor apparatus and electronic system Jun. 10, 2003
6576994 Semiconductor device Jun. 10, 2003
6576998 Thin semiconductor package with semiconductor chip and electronic discrete device Jun. 10, 2003
6577003 Semiconductor chip carrier affording a high-density external interface Jun. 10, 2003
6573459 Graded metallic leads for connection to microelectronic elements Jun. 3, 2003
6573593 Integrated circuit with a housing accommodating the integrated circuit Jun. 3, 2003
6570246 Multi-die package May. 27, 2003
6566744 Integrated circuit packages assembled utilizing fluidic self-assembly May. 20, 2003
6563201 System carrier for a semiconductor chip having a lead frame May. 13, 2003
6558500 Method of producing a lead frame with composite film attached, and use of the lead frame May. 6, 2003
6559525 Semiconductor package having heat sink at the outer surface May. 6, 2003
6555900 Package, semiconductor device and method for fabricating the semiconductor device Apr. 29, 2003
6552425 Integrated circuit package Apr. 22, 2003
6552430 Ball grid array substrate with improved traces formed from copper based metal Apr. 22, 2003
6552432 Mask on a polymer having an opening width less than that of the opening in the polymer Apr. 22, 2003
6545347 Enhanced leadless chip carrier Apr. 8, 2003
6545349 Semiconductor device Apr. 8, 2003
6545364 Circuit device and method of manufacturing the same Apr. 8, 2003
6541848 Semiconductor device including stud bumps as external connection terminals Apr. 1, 2003
6541850 Utilization of die active surfaces for laterally extending die internal and external connections Apr. 1, 2003
6541851 Lead frame for a semiconductor device Apr. 1, 2003
6538304 Corner bonding to lead frame Mar. 25, 2003
6538313 IC package with integral substrate capacitor Mar. 25, 2003
6538337 Ball grid array package for providing constant internal voltage via a PCB substrate routing configuration Mar. 25, 2003
6534847 Semiconductor device Mar. 18, 2003
6534852 Ball grid array semiconductor package with improved strength and electric performance and method for making the same Mar. 18, 2003
6534853 Semiconductor wafer designed to avoid probed marks while testing Mar. 18, 2003
6534878 Optimizing the power connection between chip and circuit board for a power switch Mar. 18, 2003
6528868 Lead frame device and method for producing the same Mar. 4, 2003
6528871 Structure and method for mounting semiconductor devices Mar. 4, 2003
6521983 Semiconductor device for electric power Feb. 18, 2003
6521988 Device for packaging electronic components Feb. 18, 2003
6521989 Methods and apparatus for hermetically sealing electronic packages Feb. 18, 2003
6521992 Semiconductor apparatus Feb. 18, 2003
6518598 III-nitride LED having a spiral electrode Feb. 11, 2003
6518649 Tape carrier type semiconductor device with gold/gold bonding of leads to bumps Feb. 11, 2003
6518650 Tape under frame for lead frame IC package assembly Feb. 11, 2003
6518663 Constant impedance routing for high performance integrated circuit packaging Feb. 11, 2003
6512288 Circuit board semiconductor package Jan. 28, 2003
6509628 IC chip Jan. 21, 2003
6509631 Semiconductor device and liquid crystal module Jan. 21, 2003
6509632 Method of fabricating a redundant pinout configuration for signal enhancement in an IC package Jan. 21, 2003

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