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