| Patents for H03H 3 - Apparatus or processes specially adapted for the manufacture of impedance networks, resonating circuits, resonators (6,646) |
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| 04/27/1994 | EP0594117A1 Piezoelectric filter and its production method |
| 04/20/1994 | EP0593329A1 Method to improve the remanant polarization of a polymer layer and applications in pyroelectric and piezoelectric transducers |
| 04/20/1994 | EP0593020A1 Electronic component and its manufacturing method |
| 04/19/1994 | US5304459 At-cut crystal oscillating reed and method of etching the same |
| 04/19/1994 | US5303457 Method for packaging microelectronic frequency selection components |
| 04/13/1994 | EP0591918A1 Electro-acoustic hybrid integrated circuit and manufacturing method thereof |
| 04/12/1994 | CA2010722C Composite longitudinal vibration mechanical filter and method of manufacturing same |
| 03/16/1994 | EP0587407A2 Piezoelectric semiconductor and process for production thereof |
| 03/16/1994 | EP0587068A1 Surface acoustic wave element and method of manufacturing the same |
| 03/03/1994 | DE4309715C1 Tuning built-in oscillation loops in SMD technology or HF filter - using air-cored coil whose inductivity is adjusted by altering winding spacing to achieve desired frequency. |
| 02/10/1994 | DE4225571A1 Lithium niobate single crystal of homogeneous compsn. - is grown from constantly compsn. corrected melt, used esp. for surface wave devices |
| 02/02/1994 | EP0580826A1 Sealed electronic package providing in-situ metallization |
| 02/01/1994 | US5283496 Thickness shear crystal resonator and manufacturing method therefor |
| 01/26/1994 | EP0580025A1 Piezoelectric vibrator and manufacturing method thereof |
| 12/29/1993 | EP0575948A1 Quartz device and manufacturing method thereof |
| 11/30/1993 | US5265316 Coating stem, case and inner lead with solder contianing 90% lead and rest tin and/or silver, fixing by melting the solder |
| 11/09/1993 | US5260913 Surface wave device |
| 10/26/1993 | CA1323639C Bending spring joint and process for its production |
| 09/16/1993 | WO1993018584A1 A method and plant for the manufacture of piezoelectrial resonators |
| 09/07/1993 | US5243249 Surface-acoustic-wave device |
| 08/19/1993 | WO1993016577A1 Sealed electronic package providing in-situ metallization |
| 08/18/1993 | CN1075340A Sealed electronic package providing in-situ metallization |
| 08/10/1993 | US5235236 Surface acoustic wave device |
| 08/10/1993 | US5235135 Sealed electronic package providing in-situ metallization |
| 08/03/1993 | US5232571 Aluminum nitride deposition using an AlN/Al sputter cycle technique |
| 07/21/1993 | EP0551328A1 Piezoelectric component-mounting foil and foil-making method |
| 07/13/1993 | US5227219 Comprising a polycarboxylic acid-hardened, amine-catalyzed epoxy resin; printed structures having a shallow gradient of slope |
| 06/15/1993 | US5220230 Surface acoustic wave device |
| 06/08/1993 | US5218328 Structure for a resonator using an ultrathin piezoelectric substrate |
| 06/01/1993 | US5215546 Method and apparatus for SAW device passivation |
| 05/18/1993 | US5212420 Method and apparatus for surface acoustic wave reflector grating |
| 03/31/1993 | EP0534355A1 Method of manufacturing a surface acoustic wave device |
| 03/31/1993 | EP0534354A1 Surface acoustic wave device and manufacturing method thereof |
| 03/31/1993 | EP0534251A1 Surface acoustic wave device |
| 03/31/1993 | EP0534165A1 Surface acoustic wave device |
| 03/17/1993 | EP0531985A1 Electro-acoustic hybrid integrated circuit and manufacturing method thereof |
| 03/10/1993 | EP0530547A1 Acoustic wave device |
| 03/09/1993 | US5192925 Piezoelectric resonator and method of fabricating the same |
| 02/23/1993 | US5188983 Polysilicon resonating beam transducers and method of producing the same |
| 02/23/1993 | US5187857 Apparatus for manufacturing electronic parts wrapped with conductive foil |
| 02/18/1993 | DE4126334A1 Surface acoustic wave resonator mfr. for precise resonator frequency - involves forming identical reflector structures, and short-circuiting selected structures to control centre frequency |
| 02/16/1993 | US5187458 Composite longitudinal vibration mechanical filter having central frequency deviation elimination means and method of manufacturing same |
| 02/09/1993 | US5185550 Structure for supporting a resonator using an ultrathin piezoelectric plate in a package |
| 02/02/1993 | US5184043 Piezoelectric resonator |
| 12/29/1992 | US5175518 Wide percentage bandwidth microwave filter network and method of manufacturing same |
| 12/09/1992 | EP0517239A1 Surface acoustic wave device and method for producing the same |
| 12/01/1992 | US5168191 Method of reducing component of the gamma vector |
| 11/17/1992 | US5163435 Piezoceramic lamina acoustic delay line suitable for use in an ultrasonic diagnostic system |
| 11/10/1992 | CA1309847C Tag and method of making same |
| 11/05/1992 | DE4213934A1 Anschlussrahmenhalter Connection frame holder |
| 11/04/1992 | EP0511536A1 Integrated circuit with trimmable passive components |
| 10/29/1992 | WO1992019042A1 Process for producing reflectors for differently codable reflective delay lines in surface wave technology |
| 10/15/1992 | DE4111866A1 Verfahren zur herstellung von reflektoren fuer unterschiedlich codierbare reflektive verzoegerungsleitungen in oberflaechenwellentechnik Process for the manufacture of reflectors for different encodable reflective verzoegerungsleitungen in oberflaechenwellentechnik |
| 10/06/1992 | US5153859 Laminated piezoelectric structure and process of forming the same |
| 10/06/1992 | US5152864 Method of manufacturing surface acoustic wave device |
| 09/30/1992 | EP0505909A1 Apparatus for manufacturing electronic parts wrapped with conductive foil |
| 09/16/1992 | EP0503892A1 High-frequency apparatus using quartz crystal resonator and its production method |
| 09/01/1992 | US5144185 SAW device |
| 09/01/1992 | US5144184 Micromechanical device with a trimmable resonant frequency structure and method of trimming same |
| 08/18/1992 | US5140497 Composite electronic component and frequency adjustment method of the same |
| 08/12/1992 | EP0498198A1 Hermetic device package for microelectronic frequency selection components |
| 08/11/1992 | US5138214 Piezoelectric transducer and method of adjusting oscillation frequency thereof |
| 07/28/1992 | US5133990 Technique for mass production of coded surface acoustic wave devices |
| 06/30/1992 | US5125136 Method and apparatus for semiconductor device passivation |
| 06/09/1992 | US5121024 Piezoelectric device operable in the thickness shear vibratory mode and manufacturing method therefor |
| 05/26/1992 | US5117145 Surface-acoustic-wave convolver |
| 05/19/1992 | US5115216 Surface acoustic wave filter including saw resonators with transmission spaces therein |
| 05/05/1992 | US5111168 Real-time, in-situ saw filter delay adjustment |
| 05/05/1992 | US5111100 Surface acoustic wave device and method for fabricating same |
| 05/05/1992 | CA1300255C Surface wave delay line with antireflective electrodes |
| 04/28/1992 | US5108822 With dielectric film of reduced thickness |
| 04/21/1992 | US5106471 Covering substrate with aluminum layer, developing patterned photoresist, etching with plasma containing chlorine and fluorine, removing resist, passivating |
| 04/02/1992 | WO1992005592A1 Piezoelectric component-mounting foil and foil-making method |
| 03/18/1992 | EP0475139A2 Method and apparatus for SAW device passivation |
| 03/10/1992 | CA1297172C Method of precisely adjusting the frequency of a piezoelectric resonator |
| 03/03/1992 | US5092978 Apparatus for fabricating piezoelectric films |
| 02/25/1992 | US5091051 Saw device method |
| 02/25/1992 | US5090254 Polysilicon resonating beam transducers |
| 02/19/1992 | EP0471567A1 Real-time, in-situ saw filter delay adjustment |
| 02/13/1992 | DE4024146A1 Prodn. of HF filter - by applying paste to both sides of substrate, producing resonator structure, drying paste and annealing |
| 02/12/1992 | EP0470318A2 Resonant tag and method of manufacturing the same |
| 02/05/1992 | EP0469193A1 Temperature stabilized crystal oscillator |
| 01/29/1992 | EP0468052A1 Structure for holding ultrathin plate piezoelectric resonator in package |
| 01/29/1992 | EP0468051A1 Structure of ultra-thin sheet piezoresonator |
| 12/27/1991 | EP0064506B2 Improvements in or relating to methods of producing devices comprising metallised regions on dielectric substrates |
| 12/24/1991 | US5075652 Wide band surface acoustic wave filter having constant thickness piezoelectric layer and divergent transducers |
| 12/04/1991 | EP0459631A2 At-cut crystal oscillating element and method of making the same |
| 12/04/1991 | CN1015041B Surface acoustic wave device |
| 12/03/1991 | US5070472 Convolver optimum bias circuit |
| 10/31/1991 | DE4113968A1 Mask structure for semiconductor component prodn. - has transparent support plate on which are periodically set given groups of component structures with phase shift structures |
| 10/29/1991 | US5061870 Surface acoustic wave device |
| 10/16/1991 | EP0452105A2 Saw device having a plurality of electrodes and a fabrication method thereof |
| 10/16/1991 | EP0451992A2 Detection of vibrations of a microbeam through a shell |
| 10/09/1991 | EP0450475A2 Technique for mass production of coded surface acoustic wave devices |
| 10/02/1991 | EP0449473A2 Method for hermetically sealing electronic devices |
| 10/01/1991 | US5053650 Monolithic semiconductor integrated circuit device having current adjusting circuit |
| 09/17/1991 | CA1289206C Monolithic saw filter |
| 09/10/1991 | US5047664 Trimming circuit |
| 08/22/1991 | WO1991012663A1 Structure for holding ultrathin plate piezoelectric resonator in package |
| 08/22/1991 | WO1991012662A1 Structure of ultra-thin sheet piezoresonator |