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1. 发明专利

JPS63289848A PACKAGE FOR ELECTRONIC CIRCUIT COMPONENT 失效
公开(公告)号：JPS63289848A
公开(公告)日：1988-11-28
申请号：JP12368587
申请日：1987-05-22
申请人： FUJITSU LTD , FUJI DENKA KK
发明人： KAGAMI YOSHIO , GOUNJI TAKU , TANI ATSUSHI , KISHI SHOICHI , ANDO KENICHI , SHIRATORI TAKESHI , NISHIMURA TADASHI , YAMADERA SHINICHI
IPC分类号： H01L23/04 , H01L23/50
摘要： PURPOSE:To prevent the generation of cracks in a junction part between lead terminals and a circuit substrate, an insulating member, etc., by arranging, outside the insulating member, a part from the middle portion of a lead terminal retained by the insulating member to an external end of the lead terminal, and separating said part from the insulating member. CONSTITUTION:A part 14a, 14b from the middle portion of a lead terminal 14 retained by an insulating member 13 to the external end of a lead terminal 14, is arranged outside the insulating member 13, separated therefrom, and bent in the form of a crank. Therefore, when the bottom part 14d of external end-portion side of the lead terminal 14 is soldered against the conductor pattern 19 of a circuit substrate 18, distortion mainly caused by the difference of thermal expansion coefficient between the insulating member 13 and the circuit substrate 18, can be absorbed by the parts 14b, 14c of the lead terminal 14 which are positioned outside the insulating member 13. Thereby, the generation of cranks in a junction part between the lead terminal and the circuit substrate, the insulating member, etc., can be prevented.

2. 发明专利

JPS6411351A PACKAGE FOR SEALING CIRCUIT COMPONENT 失效
公开(公告)号：JPS6411351A
公开(公告)日：1989-01-13
申请号：JP16685087
申请日：1987-07-06
申请人： FUJITSU LTD , FUJI DENKA KK
发明人： KAGAMI YOSHIO , GOUNJI TAKU , TANI ATSUSHI , KISHI SHOICHI , ANDO KENICHI , SHIRATORI TAKESHI , NISHIMURA TADASHI , YAMADERA SHINICHI
IPC分类号： H01L23/50 , H01L23/06
摘要： PURPOSE:To eliminate the need for connecting earth terminals with silver solder and make a package lighter without using metal frames by using a base wherein the earth terminals are mounted at an electrode plate of a package base and further, by sealing earth and lead terminals, thereby forming a book-type body made of insulating materials around the above base. CONSTITUTION:A base 21 is equipped with a flat plate type electrode plate 22 and a number of earth terminals 5 are extended to the outside and are connected with a plate 24. A lead terminal 3 extends in the direction of the electrode plate 22 from the plate 24 and a pointed end 32 is formed into a sectional U-shape and allows circuit components 30 to be easily connected to the lead terminal 3. The other pointed end 51 of the terminal 5 has the same functions. A book-type body 26 made of insulating materials 4 is formed around the base 21 and it not only seals terminals 5 and 3 but also makes this package form an air-tight space 28 wherein circuit components are sealed. When the package is used, the plate 24 is cut-off from the terminals 5 and 3 so that mutual contact is cut between the above terminals and plate 24 and mounting of the circuit components 30 into the air-tight space 28 allows the circuit components 30 to be connected to the terminals 5 and 3. After that, the package is pressed using pressure after putting a lid 8 on it.

3. 发明专利

JPH03104307A CRYSTAL OSCILLATOR 失效
公开(公告)号：JPH03104307A
公开(公告)日：1991-05-01
申请号：JP24143889
申请日：1989-09-18
申请人： FUJITSU LTD
发明人： YOSHIZAWA KAGEHARU , TANI ATSUSHI
IPC分类号： H03H9/02 , H03B5/32
摘要： PURPOSE:To obtain a crystal oscillator whose oscillation frequency varies over a wide range is large by providing a gap between an integrated circuit substrate and a metallic base supporting thereof. CONSTITUTION:An input output terminal 7 is inserted to a throughhole of an integrated circuit substrate 5 with a crystal vibrator 1 mounted thereon and a tip of the input output terminal 7 projected to the upper face of the integrated circuit substrate is soldered to the pattern on the integrated circuit substrate 5. Then the integrated circuit substrate 5 is fixed onto a metallic base 10 in parallel so that a desired gap D is interposed between the surface of the metallic base 10 and the rear side of the integrated circuit substrate 5. Then a case 11 made of a shallow metallic box is covered by applying seam welding to the case 11 at the entire circumferential ridge of the upper face of the metallic case 10, and a gas such as Nitrogen gas is sealed in the case 11 to package the crystal oscillator. Accordingly, the stray capacitance is less and the frequency variable range is increased without varying the constant of the oscillation circuit.

4. 发明专利

JPH02195729A ANALOG/DIGITAL CONVERTING CIRCUIT 失效
公开(公告)号：JPH02195729A
公开(公告)日：1990-08-02
申请号：JP1471389
申请日：1989-01-24
申请人： FUJITSU LTD
发明人： TANI ATSUSHI , KIKUCHI AKIRA
IPC分类号： H03M1/08
摘要： PURPOSE:To obtain a highly accurate A/D converting circuit in a simple constitution and at low costs by outputting an analog signal inputted to an (n)-bit A/D converting means as a digital signal at (n+1)-bits or more. CONSTITUTION:An arithmetic means 200 providing an adding function and a dividing function is connected to the output side of an (n)-bit A/D converting means 100. Further a parallel comparative type A/D converting circuit 100a is used for the means 100, and the means 200 is composed of an arithmetic circuit 200a, which consists of a whole adding circuit 210 to add the (n) words of a digital output from the circuit 100a, and a dividing circuit 230 to divide the addition result of the circuit 210 by the (n) and to obtain the mean value per word. Thus the output of the means 100 is averaged by the means 200, and the analog signal inputted to the means 100 is outputted as the digital signal at the (n+1)-bits or more. Thus the A/D converting circuit, which can obtain the more accurate output than that at the time of inputting, can be easily composed.

5. 发明专利

JPH02189011A MANUFACTURE OF SURFACE ACOUSTIC WAVE DEVICE 失效
公开(公告)号：JPH02189011A
公开(公告)日：1990-07-25
申请号：JP769389
申请日：1989-01-18
申请人： FUJITSU LTD
发明人： TANI ATSUSHI , KISHI SHOICHI
IPC分类号： H03H3/08
摘要： PURPOSE:To improve the yield of product and to facilitate the manufacture by providing a process to adjust the thickness of a metallic thin film between a 1st process forming the metallic thin film on a piezoelectric substrate and a 2nd process etching selectively the metallic thin film to form plural transducers. CONSTITUTION:The thickness of the metallic thin film is adjusted at a time between the 1st process 1 and the 2nd process 2 as shown in (1) in figure. The metallic thin film is set to a required thickness in this process to prevent it that the frequency adjustment is finally difficult or the characteristic other than the frequency characteristic is deteriorated thereby improving the yield of product. Since rough frequency adjustment is applied, fine adjustment is enough for the final frequency adjustment to improve the performance of manufacture.

6. 发明专利

JPS63228813A TIMING EXTRACTING FILTER 失效
公开(公告)号：JPS63228813A
公开(公告)日：1988-09-22
申请号：JP6355387
申请日：1987-03-18
申请人： FUJITSU LTD
发明人： TANI ATSUSHI , YAMAMOTO SHINICHI , GOUNJI TAKU
IPC分类号： H03H7/01 , H03H9/54
摘要： PURPOSE:To basically cope with many requests just with a single type of filter by forming this filter with a piezoelectric oscillator and a voltage control type variable capacity diode. CONSTITUTION:A T-shaped filter is formed with two piezoelectric oscillators X and X' and a variable capacity diode 1 serving as a coupling capacitor. The variable capacity diodes 2 and 3 are connected to the oscillators X and X' respectively. When an ambient temperature T raises, the voltage Va applied to both ends of the diode 1 is increased so that the capacity Cd is set smaller than the capacity Cd0 obtained at a normal temperature. As a result, the control voltages Vb and Vc applied between both terminals of diodes 2 and 3 respectively are decreased and the capacities Cs and Cs' of diodes 2 and 3 are increased to eliminate the frequency variance of both oscillators X and X'. In such a constitution, a filter is obtained with increased band width and a small phase change caused at f0.

7. 发明专利

JPS6220736B2 失效
公开(公告)号：JPS6220736B2
公开(公告)日：1987-05-08
申请号：JP7001880
申请日：1980-05-28
申请人： FUJITSU LTD
发明人： TANI ATSUSHI , NISHIKAWA TSUTOMU
IPC分类号： H03H9/145 , H03H3/08 , H03H9/05 , H03H9/64

8. 发明专利

JPS5930315A Surface acoustic wave device 失效
标题翻译：表面声波设备
公开(公告)号：JPS5930315A
公开(公告)日：1984-02-17
申请号：JP14078182
申请日：1982-08-12
申请人： Fujitsu Ltd
发明人： KASAI YOSHIHIKO , TANI ATSUSHI , KISHI SHIYOUICHI
IPC分类号： H03H9/25 , H03H3/08
CPC分类号： H03H3/08
摘要： PURPOSE:To attain stable support, by providing a metallic film possible to be soldered to the back side of a piezoelectric substrate. CONSTITUTION:An interdigital electrode 5 is formed on the surface of the piezoelectric substrate 2. The solderable metallic thin film 3 made of gold or silver is provided at one end at the back side of the piezoelectric substrate 2. A metallic film 8 made of aluminum not solderable is provided at a part of the back side of the piezoelectric substrate 2 not provided with the metallic thin film 3. The part of the metallic thin film 3 and a holder 1 are connected by using a solder member 4. Since the fixing is performed at one end, no filter characteristic is changed even if the holder 1 is deformed with temperature.
摘要翻译：目的：为了获得稳定的支撑，通过提供可能被焊接到压电基板的背面的金属膜。构成：在压电基板2的表面上形成叉指电极5.由金或银制成的可焊接金属薄膜3设置在压电基板2的背面的一端。由铝制成的金属膜8 在没有设置金属薄膜3的压电基板2的背面的一部分设置不可焊接的部分。金属薄膜3的一部分和保持器1通过使用焊料部件4连接。由于固定是即使保持器1随温度变形，也不会发生过滤特性的变化。

9. 发明专利

JPS58155321A SURFACE WAVE DEVICE FOR TEMPERATURE SENSOR 失效
公开(公告)号：JPS58155321A
公开(公告)日：1983-09-16
申请号：JP3892982
申请日：1982-03-12
申请人： FUJITSU LTD
发明人： NISHIKAWA TSUTOMU , TANI ATSUSHI , KISHI SHIYOUICHI
IPC分类号： G01K7/32
摘要： PURPOSE:To enhance productivity and conformity, by imparting a specified angle from a +Y axis to the phase propagating direction of the surface wave, which is generated by the excitation of electrodes provided on the surface of a substrate comprising an X cut crystal plate. CONSTITUTION:On the surface of a vibrator 1 comprising the X cut crystal plate, the cross finger type electrodes 2 and 3 constituting, e.g. an input and output transducer, are provided. A surface wave element 10 is combined with an amplifier 4 and a phase shifter 5. A resonant frequency (f) is extracted from a terminal 6. At this time, the angle between the phase propagating direction of the generated surface wave and the +Y axis of the vibrator 1 is specified in the range of 5-27 degrees in the counterclockwise direction.

10. 发明专利

JPS5817716A MANUFACTURE FOR QUARTZ OSCILLATOR 失效
公开(公告)号：JPS5817716A
公开(公告)日：1983-02-02
申请号：JP11594681
申请日：1981-07-24
申请人： FUJITSU LTD
发明人： TANI ATSUSHI , NISHIKAWA TSUTOMU , KISHI SHIYOUICHI
IPC分类号： H03H3/02
摘要： PURPOSE:To easily eliminate an unnecessary metallic film, by etching the unnecessary metallic film produced by side etching of a quartz with a liquid dissolving only the unnecessary metallic film, in etching the quartz into a specified size. CONSTITUTION:A metallic layer 2 is formed on both sides of a thin quartz plate 1. In this layer 2, Cr having good adherence to the quartz plate 1 is at first vapor-deposited and then Au is vapor-deposited. A resist film 3 is coated on the film 2. The film 3 is patterned and the layer 2 is selectively etched by using this film 3 as a mask. In this case, etching of Au and Cr is sequentially and individually performed. Next, the quartz plate 1 is etched to the specified shape by using the film 3 and the layer 2. In this case, as the method for removing an unnecessary metallic film produced by side etching of quartz, Cr is etched at first and then Au is etched. Thus, by etching with a liquid dissolving only the unnecessary metal, since a lot of crystals can be dipped in the liquid at the same time, the unnecessary metallic film can easily be removed.

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