Did You Know...
...that the x-ray was discovered purely by accident? When German physicist Wilhelm Konrad von Roentgen was experimenting with cathode rays in 1895, he put an activated Crookes tube in a book and went out to lunch. When he returned, he discovered that a key that had also been placed in the book showed up as an image on the developed film!
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| Number | Title | Issue Date |
| 8183694 | Reversing tone of patterns on integrated circuit and nanoscale fabrication A process to produce an airgap on a substrate having a dielectric layer comprises defining lines by lithography where airgaps are required. The lines' dimensions are shrunk by a trimming process (isotropic etching). The tone of the patterns is reversed by applying a... | 05/22/2012 |
| 8137893 | Chemical trim of photoresist lines by means of a tuned overcoat A new lithographic process comprises reducing the linewidth of an image while maintaining the lithographic process window, and using this process to fabricate pitch split structures comprising nm order (e.g., about 22 nm) node semiconductor devices. The process comp... | 03/20/2012 |
| 8124485 | Molecular spacer layer for semiconductor oxide surface and high-K dielectric stack A process for defining a functional area in a semiconductor device comprising a semiconductor substrate contiguous with a gate dielectric layer whose dielectric constant is higher than silicon oxide and an oxide capping layer positioned on the gate dielectric layer ... | 02/28/2012 |
| 8093099 | Lock and key through-via method for wafer level 3D integration and structures produced A three dimensional device stack structure comprises two or more active device and interconnect layers further connected together using through substrate vias. Methods of forming the three dimensional device stack structure comprise alignment, bonding by lamination,... | 01/10/2012 |
| 8084193 | Self-segregating multilayer imaging stack with built-in antireflective properties A coating process comprises forming a patterned material layer on a substrate using a self-segregating polymeric composition comprising a polymeric photoresistive material and an antireflective coating material. The polymeric photoresistive material and the antirefl... | 12/27/2011 |
| 8063483 | On-chip temperature gradient minimization using carbon nanotube cooling structures with variable cooling capacity An electronic device comprises a die with at least one defined hot-spot area; and at least one defined intermediate temperature area at a temperature lower than the temperature of the hot-spot area. The device also comprises a cooling structure comprising at least o... | 11/22/2011 |
| 8039194 | Photoacid generators for extreme ultraviolet lithography A photoacid generator P+ A− comprises (a) an antenna group P+ comprising atoms with high EUV photoabsorption cross-sections according to FIG. 1 and A− anions; or (b) an antenna group P+ and A− | 10/18/2011 |
| 7928585 | Sprocket opening alignment process and apparatus for multilayer solder decal A process for aligning at least two layers in an abutting relationship with each other comprises forming a plurality of sprocket openings in each of the layers for receiving a sprocket of diminishing diameters as the sprocket extends outwardly from a base, with the ... | 04/19/2011 |
| 7875408 | Bleachable materials for lithography Compositions comprising photobleachable organic materials can be bleached by 193 nm light, and brought back to their original state by stimuli after exposure. (reversible photobleaching). We use these compositions in art-known contrast enhancement layers and as a pa... | 01/25/2011 |
| 7855455 | Lock and key through-via method for wafer level 3 D integration and structures produced A three dimensional device stack structure comprises two or more active device and interconnect layers further connected together using through substrate vias. Methods of forming the three dimensional device stack structure comprise alignment, bonding by lamination,... | 12/21/2010 |
| 7842554 | VLSI hot-spot minimization using nanotubes The invention relates to a semiconductive device comprising a die with at least one defined hot-spot area lying in a plane on the die and a cooling structure comprising nanotubes such as carbon nanotubes extending in a plane different than the plane of the hot-spot ... | 11/30/2010 |
| 7338926 | Lubricant compositions and methods A process is disclosed for manufacturing a lubricant composition comprising combining a superabsorbent polymer with a material for decreasing friction between moving surfaces. The superabsorbent polymer absorbs from about 25 to greater than 100 times its weight in w... | 03/04/2008 |
| 4312919 | Process of producing a non-agglomerating vanadium coated particle A process for the production of a non-agglomerating vanadium coated particle is disclosed comprising the combustion of a carbonaceous material or fuel containing relatively large amounts of vanadium in the presence of an oxidizing gas and a particulate su... | 01/26/1982 |
| 4312135 | Fluid bed combuster A fluid bed combustor as well as a method of making same is disclosed. The combustor comprises a chamber containing a bed of relatively inert particles supported on a substantially horizontal distributor plate, a plurality of heat extractor tubes which pa... | 01/26/1982 |
| 4169518 | Safety belt A safety belt is disclosed comprising a first belt to be worn about the waist and a second belt slidably connected thereto. The second belt has ladder rung engaging members such as hooks on either end and may be adjustable. When the first belt is secured ... | 10/02/1979 |
| 4162523 | Static circuit arrangement for production of 3-phase current of variable frequency and output power A static circuit arrangement for the production of three-phase current, comprising a plurality of waveform generating stages arranged in cascade. Each stage is adapted to provide either a positive or negative voltage. The stages are controlled so that in the c... | 07/24/1979 |
| 4150793 | Gutter cleaning apparatus Gutter cleaning apparatus is disclosed comprising a housing having a first and second opening therein for delivering fluid under pressure into a rain gutter mounted on a building. The openings are diametrically opposed and the flow of fluid through the op... | 04/24/1979 |
| 4117564 | Oil tank cleaning apparatus Oil tank cleaning appartus is disclosed comprising a rotary cutter rotatably mounted on a shaft and operatively connected to impellers to turn the cutter. A conduit is operatively connected to the cutter for leading a fluid away from the cutter. The cutte... | 10/03/1978 |
| 4093238 | Horse racing game A game comprising selection tiles having two faces, one face of such tile having one of a plurality of variables indicated thereon. Movement tiles are also provided, each movement tile having two faces, each face of the movement tile having one of a plura... | 06/06/1978 |
| 4073499 | Stroller for a child A stroller comprising an animal figurine mounted on wheels is disclosed, a saddle seat being provided on the back of the figurine on which a child may be seated. A back rest extends from the animal figurine upwardly in back of the saddle seat to support a... | 02/14/1978 |
| 4051384 | Blocking circuit for thyristors A blocking circuit for thyristors comprises a DC power source coupled to a capacitor which is switched into a thyristor circuit by a switching transistor and auxiliary thyristor. A high power current pulse from the capacitor is applied to the thyristor fo... | 09/27/1977 |
