Abstract:
PROBLEM TO BE SOLVED: To offer a piezoelectric vibration device and a package for an electronic component, which can maintain the reliability of hermetic seal at a practicable level and improve the electrical performance of the electronic component even if the package is microminiaturized. SOLUTION: A ceramic package 1 comprises a ceramic base 10 and a frame- shaped metal layer formed on the bank of the concave base. The metal layer is composed of a metalized layer 11 made of tungsten, etc., and a first metal film layer 12 formed on the top of the metalized layer 11. A metal lid 2, which is to be hermetically sealed, has a frame-shaped second metal film layer 21 which is mated with the first frame-shaped metal film layer 12, at the bottom face of a metal base 20 made of covar, etc. The second metal film layer 21 is made of silver solder, etc. The metal lid 2 and the metal film layers of the ceramic package 1 are bonded by seam welding.
Abstract:
PROBLEM TO BE SOLVED: To improve reliability of a sealing, when heating locally by a high-frequency power the blazing portion of a metallic cover to a ceramic package, by passing a gas along the central portion of the metal cover, and by lowering relatively the temperature of its central portion than that of its peripheral portion which contributes to airtight joining to the ceramic package. SOLUTION: In an annular high-frequency coil 5 provided in a high-frequency heating apparatus, there is formed a receiving platform 7 made of mica, etc., which serves as one portion of an suction apparatus by using its hollow inside as an sucking tube 71. The receiving platform 7 is formed of a material unheated by high-frequency heating to make avoidable the waste of an excess energy. A metal cover 2 is mounted on the top surface of the receiving platform 7, and further a ceramic package 1 is mounted on the metallic cover 2 so that an electronic element 3 is stored in it airtightly. Then, while sucking the metallic cover 2 in the direction shown by an arrow by the sucking tube 71 of the receiving platform 7, the high-frequency coil 5 is subjected to current application for brazing the cover 2 to the package 1 by the high-frequency heating. At this time, since the metal cover 2 is sucked by the suction tube 71, its central portion is cooled to suppress the vaporization of a brazing material.
Abstract:
PROBLEM TO BE SOLVED: To provide a more highly reliable package for an electronic component capable of miniaturizing the package for the electronic component, without lowering sealing property of the package for the electronic component. SOLUTION: A housing space 11 of an electronic element and an outer wall 12 are provided, metallization parts 131 and 132 for brazing are formed on the upper surface of the outer wall 12, an insulation case 1 provided with a metallic sealing ring 2 through brazing filler metal 3 on the upper surface of the metallization parts 131 and 132 is provided and this package for the electronic component is composed by performing air-tight sealing by welding a metallic lid body 4 onto the metallic sealing ring 2 of the insulation case 1. A recessed part or a projected part or a recessed and projected part is formed at the brazing filler metal joined part of the metallic sealing ring 2 and the projected part or the recessed part or a projected and recessed part corresponding to the recessed part or projected part or recessed and projected part of the metallic sealing ring 2 is formed on the insulation case.
Abstract:
PURPOSE:To reduce the voltage at the time of driving and to realize excellent recognition of all three colors with a wide view angle by eliminating additional weighting by forming no color film, etc., on an insulating film, and providing a 3rd color on the opposite surface of a movable electrode film. CONSTITUTION:First and second movable electrode films 31 and 32 are installed between 1st and 2nd fixed electrode plates 1 and 2 in parallel at a specific interval. The movable electrode films 31 and 32 use soft thin elastic films as their core materials, metallic thin film electrodes 31b and 32b of aluminum, etc., are formed on the opposite surfaces of the fixed electrode plates 1 and 2 and processed into specular surfaces, and 3rd insulating color films 31a and 32a are provided on the opposite surface of the insulating film 33. The insulating film 33 is provided between the 1st and 2nd movable electrode films 31 and 32 and an elastic film of polyethylene terephthalate, etc., is used for the insulating film 33 as well. Then voltages are applied to the fixed electrodes 1 and 2 and movable electrode films 31 and 32 independently.
Abstract:
PURPOSE:To incorporate software into the picture editing system of a dot matrix type display by once reading a digital RGB signal outputted from a personal computer for picture input into RAM, transferring picture data to a personal computer for picture editing and re-editing it. CONSTITUTION:A read/write selector 33 and an address control part 34 are controlled by the control program of the personal computer (PC) for picture editing. When the selector 33 is set in a write mode, picture data which PC for picture input 2 has inputted is written in RAM 32. When the selector 33 is set in a read mode, the control signals of a column number counter, a row number counter and a bit counter are outputted in a control program on PC 1. When serial data from RAM 32 change into picture data of one byte, they are shifted on GRAM 11 in PC 1. Thus, picture-generating software can be incorporated in the picture editing system without changing software.
Abstract:
PROBLEM TO BE SOLVED: To provide a new chip type piezoelectric vibration device in which holding and hermetic sealing of a piezoelectric vibration element can be reliably achieved. SOLUTION: A piezoelectric vibration device is composed of a piezoelectric diaphragm 1 with a frame of a rectangular shape in a plan view, a terminal plate 3 of a rectangular shape in a plan view for packaging the piezoelectric diaphragm thereon, and a lid body 2 covering the inside of the frame. The piezoelectric diaphragm 1 with the frame has a tuning-fork type crystal diaphragm 11 and has a structure in which a frame 12 around which a belt-like frame is circumferentially formed is formed. A base material for the terminal plate 3 is constituted of a glass material such as borosilicate glass and the terminal plate 3 has a thin portion 30 and thick portions 31, 32 in a rectangular shape in a plan view. The piezoelectric diaphragm 1 with the frame is bonded onto the terminal plate 3, and the lid body 2 is bonded to an upper surface thereof. The terminal plate 3 and the frame 12 of the piezoelectric diaphragm 1 with the frame are hermetically bonded by a low fusing point glass material for bonding, and the lid body 2 is also hermetically bonded to the frame 12 by the low fusing point glass material for bonding. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a new chip type piezoelectric vibration device in which holding and hermetic sealing of a piezoelectric vibration element can be reliably achieved. SOLUTION: The piezoelectric vibration device is composed of a piezoelectric diaphragm 1 with a frame of a rectangular shape in a plan view and metallic terminals 2 and 3 of a rectangular shape in a plan view. The piezoelectric diaphragm 1 with a frame has a tuning-fork type crystal diaphragm 11 at the center and has a structure in which a frame 12 around which a belt-like frame is circumferentially formed is formed. A metal film is formed on both sides of the frame 12. Covers 21 and 31 and bends 22 and 32 bent at a substantially right angle at one of the short sides are formed to the metallic terminals 2 and 3. Joining is achieved while the piezoelectric diaphragm 1 with the frame is sandwiched between the metallic terminals 2 and 3, thereby the frame inside is hermetically sealed while one terminal of the tuning-fork type crystal diaphragm is drawn out to a metallic terminal 2 side and the other terminal of the tuning-fork type crystal diaphragm is drawn out to a metallic terminal 3 side. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a piezoelectric vibrating device improving an impact resistive performance, enhancing a conductive performance and reducing a cost. SOLUTION: The piezoelectric vibrating device is composed of a metal base 1 with metal lead terminals, a piezoelectric diaphragm 2 loaded on the metal lead terminals and electrically connected through conductive-resin adhesives S and a metal cover 3. In the piezoelectric vibrating device, corrosion preventive films are formed to the metal lead terminals and the external surface of the metal base and oxide films for the corrosion preventive films on the uppermost surfaces of the corrosion preventive films. In the piezoelectric vibrating device, the piezoelectric diaphragm is joined directly in an electromechanical manner by using the conductive-resin adhesive softer than a pencil hardness 4B on the top faces of oxide layers for the corrosion preventive films under the state, in which the oxide layers in sections coated with at least the conductive-resin adhesives are thinner than those of other regions or the oxide films are scattered, on the inner sides of the metal lead terminals at the same time. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To restrain manufacturing cost, while realizing an airtight sealing configuration that copies with environmental problems. SOLUTION: In a quartz oscillator 1, a package 5 is constituted of joining a base 3 for holding a quartz oscillation piece 2 to a cap 4 for airtightly sealing the quartz oscillation piece 2, an airtightly sealed internal space 6 is formed in a package 5, and the quartz oscillation piece 2 is held on the base 3 in the internal space 6 by using a jointing material 7. The base 3 is formed into a box shape comprising a bottom 31 and a bank 32 laminated on the bottom 31, the bottom 31 and the bank 32 are baked integrally, while the section is into a recessed shape, and the upper surface of the bank 32 is a junction region 33 with the cap 4. A junction material 7, made of a glass material without containing lead with bismuth oxide as a main constituent, is formed on the junction region 33 for jointing to the cap 4. One portion 71 of the jointing material 7 is arranged in the internal space 6, while projecting toward the inside of a casing in a plan view of the base 3. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a method of manufacturing an electronic part that enables downstream operations such as an inspection without the necessity for cutting off all ceramic bases after plating, in contrast to a method of improving production efficiency by dividing a ceramic base in the manufacturing of an electronic part such as a quartz oscillator. SOLUTION: A plurality of ceramic bases are integrally formed in a ceramic laminate E in a matrix form. Plating is performed on a base metal layer having a wiring pattern and so forth which is formed beforehand on the ceramic laminate E. The ceramic laminate E is split in the column direction of the ceramic bases to have broken laminates F. Quartz resonator plates are mounted on the ceramic bases on the broken laminates F. After frequency adjustment is performed on the quartz oscillator plates, caps are joined to the ceramic bases and the broken laminates F are divided to have quartz oscillators 1. COPYRIGHT: (C)2004,JPO