Patents for H05K 1 - Printed circuits (98,583) |
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02/12/1991 | US4992851 Characteristic impedance-correct chip carrier for microwave semiconductor components |
02/12/1991 | US4992688 Printed circuit board with a metallic layer for supporting an electrical component |
02/12/1991 | US4992527 Polyamide, polyimide, and polyamide-imide polymers of diamino-t-butylbenzene |
02/12/1991 | US4992399 Ceramic, circuit substrate and electronic circuit substrate by use thereof and process for producing ceramic |
02/12/1991 | US4992253 Adding 1 to 5 % by weight of aluminum nitride to a mixture of alumina and carbon black, heating in the presence of nitrogen |
02/12/1991 | US4991666 Terminal pad for fixing a clawed pin to the edge of a hybrid circuit substrate and a connection formed thereby |
02/12/1991 | US4991665 Flexible circuit conductor run |
02/12/1991 | US4991424 Integrated heatable sensor |
02/12/1991 | US4991290 Flexible electrical interconnect and method of making |
02/12/1991 | US4991284 Method for manufacturing thick film circuit board device |
02/12/1991 | CA1280179C Resonant microstrip-line circuit |
02/12/1991 | CA1280084C Sintering of metal interlayers within organic polymeric films |
02/07/1991 | WO1991001618A1 Process for attenuating perturbing radiation in printed circuit boards |
02/07/1991 | WO1991001567A1 Flexible circuit connector |
02/07/1991 | DE3924659A1 Controlling digital circuit, esp. of computer architecture - forming timing plane with component connected to opto-electronic bus data plane also connected to timing plane |
02/06/1991 | EP0411772A2 Flexible printed-circuit base board and process for producing the same |
02/06/1991 | EP0411639A2 Electronic circuit substrate |
02/06/1991 | EP0411551A2 Multilayer interconnects |
02/06/1991 | EP0411423A2 Curable dielectric polyphenylene ether-polyepoxide compositions |
02/06/1991 | EP0411270A1 Procedure for applying a solder layer |
02/06/1991 | EP0411165A1 Method of forming of an integrated circuit chip packaging structure |
02/06/1991 | EP0411142A1 Outer layer material of multilayer printed wiring board and production thereof |
02/06/1991 | EP0411015A1 Pre-formed chip carrier cavity package |
02/06/1991 | CN1011497B Laser marking of pigmented systems |
02/05/1991 | US4991228 Microwave converter |
02/05/1991 | US4991060 Printed circuit board having conductors interconnected by foamed electroconductive paste |
02/05/1991 | US4990948 Optical apparatus |
02/05/1991 | US4990891 Identification device in the form of a tag-like strip affixable to an article |
02/05/1991 | US4990727 Horn switch |
02/05/1991 | US4990724 Method and apparatus for electrically interconnecting opposite sides of a flex circuit |
02/05/1991 | US4990720 Circuit assembly and method with direct bonded terminal pin |
02/05/1991 | US4990409 Base material impregnated with halogen-containing unsaturated polyester cured in polymerizable diluent |
02/05/1991 | US4990405 High strength; waterproofing; gasket seals; dielectrics; dielectrics; papers, films, boards and laminates; construction materials |
02/05/1991 | US4990397 High impact strength |
02/05/1991 | US4990393 Printed circuit board |
02/05/1991 | US4990107 Integrated circuit module connector assembly |
02/05/1991 | US4990080 Punch press for piercing green sheet with liner |
02/05/1991 | US4989317 Method for making tab circuit electrical connector supporting multiple components thereon |
02/03/1991 | CA2013937A1 Curable dielectric polyhenylene ether-polyepoxide compositions |
02/02/1991 | CA2022474A1 Multilayer interconnects |
01/30/1991 | EP0410702A2 Printing ink composition |
01/30/1991 | EP0410547A2 Propargyl aromatic ether polymers |
01/30/1991 | EP0410427A1 Plug-in connection for circuit boards |
01/30/1991 | EP0410426A1 Device for strain relief |
01/30/1991 | EP0381745A4 Low inductance decoupling capacitor |
01/30/1991 | EP0379514A4 Novel polymer/metal laminate and method for fabrication thereof |
01/30/1991 | EP0271736B1 Resins of low thermal expansivity |
01/30/1991 | CN1011470B Processor apparatus with improved control of electromagnetic radiation |
01/29/1991 | US4988577 Printed circuit board stiffener |
01/29/1991 | US4988514 Preparation of lower alkyl polysilsesquioxane and formation of insulating layer of silylated polymer on electronic circuit board |
01/29/1991 | US4988306 Low-loss electrical interconnects |
01/29/1991 | US4987677 Heat treatment; copper with specific surface roughness |
01/29/1991 | CA2022048A1 Propargyl aromatic ether polymers |
01/24/1991 | WO1991001078A1 Electrical connectors |
01/24/1991 | WO1991000936A1 Structured knitted woven fabrics |
01/24/1991 | DE4022255A1 Flame retarding binder for printed circuit - comprising e.g. soln. of bisphenol di:cyanate pre-polymer and bisphenol=A epoxy] resin |
01/24/1991 | DE3937183A1 Verfahren zu stoerstrahlungsdaempfung an leiterplatten Method to stoerstrahlungsdaempfung on pcb |
01/24/1991 | DE3923491A1 Low sintering temp. glass-ceramic material - useful for substrates and multilayer housings in microelectronics |
01/24/1991 | DE3919564A1 Flexible printed circuits prodn. - by holding polyimide film taut, screen printing resinate paste conductors on it, and drying at high temp. |
01/23/1991 | EP0409668A2 Mixed circuit boards and a method for manufacture thereof |
01/23/1991 | EP0409482A1 Polymer blend articles |
01/23/1991 | EP0409466A2 Process for the preparation of a polyimide film |
01/23/1991 | EP0409003A2 Derivatives of compounds containing a carbonyl group conjugated to an aromatic moiety and electrophilic methods of fabrication thereof |
01/23/1991 | EP0409002A2 Process for nucleophilic derivatization of materials having an imide group conjugated to an aromatic moiety |
01/23/1991 | EP0408913A1 Method for forming a conductive film on a surface of a conductive body caoted with an insulating film |
01/23/1991 | EP0408904A2 Surface mounting semiconductor device and method |
01/23/1991 | EP0408773A1 Process for the production of circuit boards or inner layers of circuit boards containing rigid and flexible parts |
01/23/1991 | EP0408768A1 Chip carrier |
01/23/1991 | EP0408588A1 Inductive element and method of manufacture |
01/23/1991 | EP0235292B1 Pin board matrix |
01/22/1991 | US4987272 Dipropargyl ether of alpha, alpha'-bis (4-hydroxypenyl)-paradiisopropylbenzene |
01/22/1991 | US4987214 Imide type prepolymer composition comprising unsaturated bis imide, diamine, and a tertiary butyl hydroquinone polymerization inhibitor |
01/22/1991 | US4987108 Dielectric paste |
01/22/1991 | US4987100 Flexible carrier for an electronic device |
01/22/1991 | US4987009 Producing method of thick film complex component |
01/22/1991 | US4986880 Process for etching polyimide substrate in formation of unsupported electrically conductive leads |
01/22/1991 | US4986765 Insertable latch means for use in an electrical connector |
01/22/1991 | US4986124 Screened inductance sensors, especially sensors for level measurement |
01/21/1991 | CA2021494A1 Polymer blend articles |
01/19/1991 | CA2021482A1 Circuit boards |
01/18/1991 | US5025116 Printed wiring board having electromagnetic wave shielding layer |
01/18/1991 | CA2021293A1 Polyimide film and preparation process of the film |
01/17/1991 | DE3922478A1 Excimer laser structuring or etching process - for plastics-coated copper-clad base materials |
01/17/1991 | DE3922121A1 Flexible circuit board for electrical connections - has strip formed conductors with contacts to provide interconnections |
01/16/1991 | EP0408401A1 A keyboard for an electronic apparatus |
01/16/1991 | EP0408101A2 Strip carrier for integrated circuits |
01/16/1991 | EP0407957A1 Heat sink device for components of the SMD type mounted on a printed curcuit board |
01/16/1991 | EP0407951A2 Method for applying a photoresist to a 3-D conductive substrate |
01/16/1991 | EP0407781A2 Polyetherimide precursor reinforced laminates and the preparation thereof |
01/16/1991 | EP0407778A2 Hybrid amplifier |
01/16/1991 | EP0407531A1 Low profile chip carrier socket. |
01/15/1991 | US4985870 Apparatus for connecting electronic modules containing integrated circuits and backup batteries |
01/15/1991 | US4985808 Printed circuit board switching system for resistor network |
01/15/1991 | US4985807 Encoding device particularly for integrated circuit cards |
01/15/1991 | US4985687 Low power temperature-controlled frequency-stabilized oscillator |
01/15/1991 | US4985675 Multi-layer tolerance checker |
01/15/1991 | US4985663 Display device |
01/15/1991 | US4985601 Reflowable |
01/15/1991 | US4985600 Printed circuit board having an injection molded substrate |
01/15/1991 | US4985597 Optical semiconductor device |