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    • 4. 发明专利
    • SEMICONDUCTOR DEVICE
    • JPS6381954A
    • 1988-04-12
    • JP22759586
    • 1986-09-26
    • FUJITSU LTD
    • MUGITANI HIROSHI
    • H01L23/04H01L23/02H01L23/12H01L25/04H01L25/18H05K9/00
    • PURPOSE:To miniaturize and lighten a semiconductor device, and to improve mass productivity remarkably by mounting a partition on the cap side of a vessel, manufacturing the vessel at low cost by forming the partition through drawing and forming the vessel body side to a plate shape. CONSTITUTION:A cap 12 is manufactured by drawing a plate having quality of SPCC so as to shape a plurality of bowllike swelled sections through a press technique. The number, shape, etc. of the bowllike swelled section are conformed to those of semiconductor circuit elements 21, 22 loaded on a vessel body 11. The plate-shaped peripheral section of the cap 12 is brought into contact with the periphery of the plate-shaped vessel 11, and both are bonded in the sections. A plate-shaped section 12c between small chambers 12a and 12b in the cap 12 is brought into contact with only the plate-shaped vessel body 11 and is not welded as the peripheral sections. For inhibit possibility in which a clearance is formed in the section 12c, the section 12c is projected slightly to the plate- shaped vessel body 11 side (the operation is conducted on press molding), and 12c may be formed to a shape that 12c pushes 11.
    • 6. 发明专利
    • MANUFACTURING OF SEMICONDUCTOR DEVICE
    • JPS55134943A
    • 1980-10-21
    • JP4322379
    • 1979-04-10
    • FUJITSU LTD
    • SANO YOSHIAKIMUGITANI HIROSHINEMOTO MASARUIIZUKA TOORU
    • H01L21/52H01L21/58
    • PURPOSE:To keep the amount of fixing solder material at a constant level in a concave by a method wherein, while on the surface of a substrate, on which semiconductor chips are to be fixed, a concave is formed to lay the fixing solder material, another concave adjacent thereto is further provided for scraping down surplus solder material. CONSTITUTION:In addition to a concave 1A, which is a little larger than a chip 3 on the surface of a substrate 1 for laying on the solder material 5 to fix a semiconductor chip 3, another concave adjacent thereto is to be provided for scraping down surplus solder material 5. In this way the substrate is constituted, the solder material 5 is laid inside the concave 1A, the surface of the solder material 5 is made to coincide with the surface of the substrate 1 by sweeping with a squeeze to make it into the solder material 5' and surplus solder material is scraped down into the concave 1B. Then the chip 3 is positioned on the solder material 5' within the concave 1A, which has been levelled, to be fixed by heating, the solder material 5 within the concave 1B is either left as it is or to be removed thus making electric resistance, thermal radiation, an the like at a constant level covring the whole products.
    • 8. 发明专利
    • LIMITER FOR MICROWAVE RECEIVER
    • JPH03102902A
    • 1991-04-30
    • JP24095889
    • 1989-09-18
    • FUJITSU LTD
    • FURUYA OSAHISAMUGITANI HIROSHIMATSUMOTO KAZUHIRO
    • H01P1/15
    • PURPOSE:To obtain a limiter ensuring isolation and coping with a broad band input signal by suppressing a received microwave signal with a limiter diode and applying branching and synthesizing waves with a directional coupler to plural diodes. CONSTITUTION:A received microwave signal (gain 50dB) from a microwave antenna is inputted to a terminal Tin and given to a PIN diode 11, in which the gain is reduced to 25dB. Then, a hybrid 12 branches the signal at the rate of the attenuation quantities between a detection diode (attenuation 7dB) and a PIN diode (attenuation 25dB) 13b. The one branched signal is detected by a diode 13a and the other signal is isolated by a diode 13b. Then each threshold level of the diodes 11, 13b is decreased based on a DC voltage obtained by the detection of the diode 13a to make the entire isolation complete. Then, the signals branched at the rate are synthesized at a hybrid 14 in the same ratio and the result is outputted from a terminal Tout.
    • 9. 发明专利
    • CIRCUIT DEVICE
    • JPH01149601A
    • 1989-06-12
    • JP30909687
    • 1987-12-07
    • FUJITSU LTD
    • MUGITANI HIROSHIISHII KIYOUICHI
    • H05K9/00H01L25/04H01L25/18H01P3/08H01P5/02H01P5/08
    • PURPOSE:To improve the workability of assembling works of a circuit device and the radio wave cut-off of the circuit by providing shielding bodies which shield plural circuit elements from a chip member and a cap which encloses the circuit elements and electrically connecting the plural circuit elements with each other by forming a wiring pattern in the chip member. CONSTITUTION:A matching chip member 21 is manufactured in such a way that an upper-layer chip 25 is put on a lower layer chip 24 and they are heated with a pressure. When they are heated with a pressure after the upper-layer chip 25 is put on the lower-layer chip 24, they are integrated and biers 30 and 31 are respectively butted and connected to biers 42 and 43. Biers 38 and 40 are respectively connected to the vicinity of both ends of a matching pattern 28 and biers 39 and 41 are respectively connected with the vicinity of both ends of another matching pattern 29. Therefore, in the matching chip member 21 a pattern 33 for earthing on the upper surface and a metallic film 27 on the lower surface are electrically connected with each other through the biers 30, 31, 42, and 43. Since no protruding terminal exists on the upper surface side of a metallic container main body 22, wire bonding can be carried out at a high workability.
    • 10. 发明专利
    • CIRCUIT ELEMENT CONTAINER
    • JPS62283645A
    • 1987-12-09
    • JP12567086
    • 1986-06-02
    • FUJITSU LTD
    • MUGITANI HIROSHIFURUYA OSAHISAARAI YOICHI
    • H01L23/02
    • PURPOSE:To obtain a container having means for resealing a cover without damaging the cover and a housing by drilling a hole in the cover to be opened, inserting a screw to the hole, and forming a structure that the cover is raised in a direction for separating from the housing by rotating the screw to remove the cover after sealing the cover. CONSTITUTION:A recess 21 to become a mark is formed, for example, by a punch at a position to be opened with the hole of a cover 13. A recess 19 (a non-penetrating hole) is formed on the wall of a housing 12 corresponding to the hole to be formed. When the cover 13 is removed, a drill 22 is used to drill at the recess 21, a threaded hole 23 is then formed by a tap. Then, when a screw 24 is engaged, the cover 13 is separated above the housing 12 by a jackup effect. Since the hole 23 is opened at the cover 13, when a new cover is used for resealing, the same shape as that before opening the seal can be obtained in an external appearance and function.