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| Number | Title | Issue Date |
| 6891247 | Semiconductor device including semiconductor bare chip mounted by flip-chip bonding, and board member with thin-film structure capacitor for semiconductor bare chip mounted by flip-chip bonding A semiconductor device includes a semiconductor bare chip and an electrically-insulative board member with a thin-film structure capacitor. The semiconductor bare chip has a power supply terminal and a grounding terminal on the back surface thereof. The semiconducto... | 05/10/2005 |
| 6628531 | Multi-layer and user-configurable micro-printed circuit board A multi-layer micro-printed circuit board (PCB) is disclosed, which defines a magnetic component, such as a transformer, using planar technology. Instead of using the traditional twelve-layer PCB incorporating both a primary and a secondary winding, this ... | 09/30/2003 |
| 6556416 | Variable capacitor and a variable inductor A variable capacitor is formed by a multilayer circuit board having a plurality of dielectric layers; a first conductive plate, provided within the multilayer circuit board, for serving as one electrode of the variable capacitor; a second conductive plate... | 04/29/2003 |
| 5892652 | Sensitive key device having a detective surface in direct contact with a plate This invention concerns a sensitive key device with capacitive effect working through an electrically insulating plate, the key being supported by a printed circuit board. According to the invention, the bottom of a single part having a spring blade made ... | 04/06/1999 |
| 5867360 | Variable capacitor In a variable capacitor having a stator with a stator electrode and a rotor with a rotor electrode both of which are housed in a recess section of a casing while allowing the recess section to be closed by a cover, enabling the rotor to be brought into st... | 02/02/1999 |
| 5557495 | Variable capacitor and method A variable capacitor and method of varying capacitance in which two pressurally engaged plates having electrically conductive patterns on facing surfaces are separated by a low friction polytetrafluoroethylene (Teflon™) dielectric disk so that the plate... | 09/17/1996 |
