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Class Information
Number: 257/667
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Lead frame > With dam or vent for encapsulant
Description: Subject matter with a portion or portions to block encapsulant flow, typically from flowing out of a mold during an encapsulation process, or vent means (e.g., grooves in lead frame leads) to permit egress to the atmosphere for air or other gases which are inside a mold during encapsulation.


Patents under this class:
1 2 3 4 5 6 7

Patent Number Title Of Patent Date Issued
7061082 Semiconductor die with attached heat sink and transfer mold Jun. 13, 2006
7049683 Semiconductor package including organo-metallic coating formed on surface of leadframe roughened using chemical etchant to prevent separation between leadframe and molding compound May. 23, 2006
7042730 Non-isolated heatsink(s) for power modules May. 9, 2006
7026192 Terminal land frame and method for manufacturing the same Apr. 11, 2006
7002240 Semiconductor leadframe for staggered board attach Feb. 21, 2006
6992385 Semiconductor device, a method of manufacturing the same and an electronic device Jan. 31, 2006
6979887 Support matrix with bonding channel for integrated semiconductors, and method for producing it Dec. 27, 2005
6972488 Semiconductor device in which a semiconductor chip mounted on a printed circuit is sealed with a molded resin Dec. 6, 2005
6967396 Semiconductor device Nov. 22, 2005
6949839 Aligned buried structures formed by surface transformation of empty spaces in solid state materials Sep. 27, 2005
6949822 Semiconductor multichip module package with improved thermal performance; reduced size and improved moisture resistance Sep. 27, 2005
6946722 Multi-part lead frame with dissimilar materials Sep. 20, 2005
6943434 Method for maintaining solder thickness in flipchip attach packaging processes Sep. 13, 2005
6924547 Memory card Aug. 2, 2005
6911719 Lead frame for resin sealed semiconductor device Jun. 28, 2005
6911725 Film substrate, semiconductor device, method of manufacturing film substrate, method of manufacturing semiconductor device and method of manufacturing circuit board with semiconductor device Jun. 28, 2005
6897092 Method of supporting a substrate film May. 24, 2005
6897093 Method of manufacturing a resin molded or encapsulation for small outline non-leaded (SON) or quad flat non-leaded (QFN) package May. 24, 2005
6893903 Semiconductor device and method for manufacturing the same May. 17, 2005
6894370 Lead frame and semiconductor device having the same as well as method of resin-molding the same May. 17, 2005
6891254 Semiconductor device with protrusions May. 10, 2005
6888227 Apparatus for routing signals May. 3, 2005
6888229 Connection components with frangible leads and bus May. 3, 2005
6888247 Interconnect structure with an enlarged air gaps disposed between conductive structures or surrounding a conductive structure within the same May. 3, 2005
6882033 High density direct connect LOC assembly Apr. 19, 2005
6882041 Thermally enhanced metal capped BGA package Apr. 19, 2005
6876066 Packaged microelectronic devices and methods of forming same Apr. 5, 2005
6873054 Semiconductor device and a method of manufacturing the same, a circuit board and an electronic apparatus Mar. 29, 2005
6867507 Lead frame Mar. 15, 2005
6856006 Encapsulation method and leadframe for leadless semiconductor packages Feb. 15, 2005
6853059 Semiconductor package having improved adhesiveness and ground bonding Feb. 8, 2005
6849915 Light sensitive semiconductor package and fabrication method thereof Feb. 1, 2005
6847103 Semiconductor package with exposed die pad and body-locking leadframe Jan. 25, 2005
6841859 Premolded cavity IC package Jan. 11, 2005
6838752 Semiconductor package with recessed leadframe and a recessed leadframe Jan. 4, 2005
6838750 Interconnect circuitry, multichip module, and methods of manufacturing thereof Jan. 4, 2005
6836004 Lead frame, and method for manufacturing semiconductor device and method for inspecting electrical properties of small device using the lead frame Dec. 28, 2004
6826829 Method for attaching a die with a low melting metal Dec. 7, 2004
6825550 Board-on-chip packages with conductive foil on the chip surface Nov. 30, 2004
6818971 Lead frame for resin-molded semiconductor device Nov. 16, 2004
6818968 Integrated circuit package and process for forming the same Nov. 16, 2004
6815835 Single sided adhesive tape for compound diversion on BOC substrates Nov. 9, 2004
6803646 Semiconductor device having first chip secured within resin layer and second chip secured on resin layer Oct. 12, 2004
6803258 Semiconductor device Oct. 12, 2004
6794738 Leadframe-to-plastic lock for IC package Sep. 21, 2004
6791167 Resin-molded device and manufacturing apparatus thereof Sep. 14, 2004
6784522 Electronic semiconductor device having a thermal spreader Aug. 31, 2004
6770962 Disposable mold runner gate for substrate based electronic packages Aug. 3, 2004
6756659 Die paddle clamping method for wire bond enhancement Jun. 29, 2004
6756660 Lead frame for a semiconductor device and a semiconductor device incorporating the lead frame Jun. 29, 2004

1 2 3 4 5 6 7


 
 
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