专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明专利

JPH11163642A SEMICONDUCTOR DEVICE AND HIGH FREQUENCY CIRCUIT USING IT 失效
公开(公告)号：JPH11163642A
公开(公告)日：1999-06-18
申请号：JP32980897
申请日：1997-12-01
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NISHIKAWA KENJIRO , TOKUMITSU TSUNEO
IPC分类号： H01L21/822 , H01L21/8238 , H01L27/04 , H01L27/092 , H03F3/195
摘要： PROBLEM TO BE SOLVED: To provide a substrate for a master slice type monolithic high frequency circuit with high versatility which forms a high frequency circuit that handles a small signal of a receiver level and a high frequency circuit that handles a large signal of a high output amplifier, etc., on the same substrate and a high frequency circuit using the above substrate as a component. SOLUTION: In a substrate provided with transistors which are repeatedly arranged in the order of a source S, a gate G, a drain D and a gate G and grounding conductors 29, this semiconductor device is configured by connecting mutually adjacent sources S of transistors that are not covered with the conductors 29, mutually adjacent gains G and mutually adjacent drains D by conductor in a through-hole 32 and wiring conductors 29 and 30. This high frequency circuit is configured with the semiconductor device as a component.

2. 发明专利

JPH09107212A HIGH FREQUENCY 90× DISTRIBUTION AND SYNTHESIS CIRCUIT 失效
公开(公告)号：JPH09107212A
公开(公告)日：1997-04-22
申请号：JP26163695
申请日：1995-10-09
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NISHIKAWA KENJIRO , TOKUMITSU TSUNEO
IPC分类号： H01L27/04 , H01L21/822 , H01P5/04 , H01P5/18 , H03H11/22
摘要： PROBLEM TO BE SOLVED: To realize a means which can correct the disturbance of characteristics caused by the variance in thickness of dielectric films for the generation of a high frequency 90 deg. distribution and synthesis circuit at the time of laminating dielectric films or conductors on a semiconductor substrate or a dielectric substrate to form a high frequency circuit. SOLUTION: Transmission lines 1 and 2 of 1/4 wavelength are formed on different dielectric films in a multilayered high frequency circuit where dielectric films 5 and conductors 3 are laminated in many layers on a semiconductor substrate 4 or a dielectric substrate, and these two transmission lines 1 and 2 function as a directional coupler. In this high frequency 90 deg. distribution and synthesis circuit, a variable capacity 6 is connected between two transmission lines of 1/4 wavelength.

3. 发明专利

JPH0951224A MICROSTRIP ANTENNA MADE OF PLURAL KINDS OF MULTI-LAYER DIELECTRIC FILMS 失效
公开(公告)号：JPH0951224A
公开(公告)日：1997-02-18
申请号：JP13553596
申请日：1996-05-29
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KAMOGAWA KENJI , TOKUMITSU TSUNEO
IPC分类号： H01Q13/08 , H01P5/08
摘要： PROBLEM TO BE SOLVED: To provide a multi-band microstrip antenna operated in an excellent way by providing an optimum thickness of a dielectrics base to each antenna at plural optional operating frequencies among a wide range of frequencies. SOLUTION: A 2nd multi-layer dielectric film composed of a dielectric film 2 whose specific dielectric constant and film thickness differ from those of a dielectric film 1 is formed on the 1st multi-layer dielectric film composed of plural dielectric films 1. An antenna element 12 is formed on the 2nd multi- layer dielectric film. A ground conductor 11 of the antenna element 12 is formed between the 1st multi-layer dielectric films. A strip conductor 13 is formed at a position of the ground conductor 11 opposite to the antenna element 12. A signal inputted by the strip conductor 13 is coupled electromagnetically with the antenna element 12 via a slot 16 formed to the ground conductor 11 to excite the antenna element 12.

4. 发明专利

JPH07283075A CAPACITOR 失效
公开(公告)号：JPH07283075A
公开(公告)日：1995-10-27
申请号：JP7744394
申请日：1994-04-15
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： TOYODA KAZUHIKO , TOKUMITSU TSUNEO
IPC分类号： H01G4/12 , H01G4/33 , H03H9/145
摘要： PURPOSE:To provide a capacitor being mounted on a high frequency integrated circuit in which the capacitance can be increased without increasing the area by taking advantage of the features of interdigital capacitor where high accuracy is ensured in the capacitance. CONSTITUTION:A first planar conductor 7-1 is formed on a semiconductor or dielectric substrate and a first dielectric film 8-1 is formed thereon. First and second pectinated conductors 4-1, 4-2 are then interdigitated thereon and a second dielectric film 8-2 is formed thereon. Subsequently, a second planar conductor 7-2 is formed thereon and means 9-1 for connecting the first planar conductor with the first pectinated conductor is provided along with means 9-2 for connecting the second planar conductor with the second pectinated conductor.

5. 发明专利

JPH04368003A MICROWAVE TRANSMISSION LINE 失效
公开(公告)号：JPH04368003A
公开(公告)日：1992-12-21
申请号：JP14349091
申请日：1991-06-14
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： HIRAOKA TAKAHIRO , TOKUMITSU TSUNEO
IPC分类号： H01P3/00 , H01P11/00
摘要： PURPOSE:To reduce the conductor loss and to facilitate the branch of the transmission line by connecting transmission lines with a conductor at two pints or over including a start pint and an end point between the transmission lines. CONSTITUTION:A dielectric film 20 made of a silicon oxide film, a silicon nitride film or a polyimide film or the like whose height is H is formed on conductor films 10-12 formed on a dielectric (semiconductor) board 1 as a transmission line and conductors 13-15 are formed on the dielectric film 20 just on the conductor films 10-12. Then a start point 11a of a 1st transmission line 11 is connected to an end 14a of a 2nd transmission line by a conductor so as to be overlapped with the 1st transmission line 11. Moreover, an end point 11b of the 1st transmission line 11 is connected to an end 14b of the 2nd transmission line by a conductor so as to be overlapped with the 1st transmission line 11. Furthermore, ground conductors 13, 15 of the 2nd transmission line 14 are connected to the conductor films 10, 21 being ground conductors at ends 13a, 15 respectively. Thus, the current distribution follows in a way that the thickness of the conductor is increased nearly twice equivalently.

6. 发明专利

JPH04171823A WIRING STRUCTURE AND MANUFACTURE THEREOF 失效
公开(公告)号：JPH04171823A
公开(公告)日：1992-06-19
申请号：JP29950090
申请日：1990-11-05
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： HIRANO MAKOTO , ASAI KAZUYOSHI , IMAI YUUKI , TOKUMITSU MASAMI , TOKUMITSU TSUNEO
IPC分类号： H01L29/41 , C25D5/02 , C25D7/12 , H01L21/3205 , H01L23/52 , H01L27/01
摘要： PURPOSE:To reduce the wiring resistance and transmission loss of a wiring structure by making the end section of the wiring thicker in thickness than the central part. CONSTITUTION:Only end sections of wiring conductors to which electric currents are concentrated are made thicker in thickness than the other parts of the conductors. Accordingly, the transmission loss of the wiring can remarkably be reduced, since the wiring resistances in the end sections of the conductors to which electric currents are concentrated are especially reduced. A similar structure can be used not only for coplanar type lines, but also for a strip or slot type line. In addition, various kinds of lines, such as a both-flat line, etc., can also use a similar structure.

7. 发明专利

JPH10335911A BALUN CIRCUIT AND BALANCED FREQUENCY CONVERTER 失效
公开(公告)号：JPH10335911A
公开(公告)日：1998-12-18
申请号：JP16139097
申请日：1997-06-18
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NISHIKAWA KENJIRO , TOYODA KAZUHIKO , TOKUMITSU TSUNEO
IPC分类号： H01P5/10 , H03D9/06
摘要： PROBLEM TO BE SOLVED: To reduce the deviations in amplitude and phase of an output signal, also to expand a band and to miniaturize a circuit by inserting a transmission line which corrects to reduce the phase speed of an even mode, when the phase speed of an even mode is faster than the phase velocity of an odd mode into a connecting part of two connection lines which have a length of 1/4 wavelength, constituting a marchand balun. SOLUTION: A 1st terminal B of a lower distribution of a 1st connection line 1 and a 1st terminal A' of the lower distribution of a 2nd connection line 2 are connected though a 1st transmission line 3, whose line length is an arbitrary length L3. Related to a frequency characteristic when there is difference between phase speeds of orthogonal modes of the lines 1 and 2, respective changes of amplitudes and phases shown symmetrical characteristics, when the line 3 is connected and when it is not connected. Because this enables reducing the deviations in amplitude and phase of an output signal with a simple structure in which the line 3 is inserted, expanding an operation band and also shortening the length L3, the miniaturization of a circuit is easily realized.

8. 发明专利

JPH09260583A HIGH FREQUENCY SEMICONDUCTOR DEVICE 失效
公开(公告)号：JPH09260583A
公开(公告)日：1997-10-03
申请号：JP8713196
申请日：1996-03-18
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： NISHIKAWA KENJIRO , TOKUMITSU TSUNEO , AIKAWA MASAYOSHI
IPC分类号： H01L21/60 , H01L25/04 , H01L25/16 , H01L25/18
摘要： PROBLEM TO BE SOLVED: To prevent a deterioration of high frequency characteristics and unnecessitate the control of the height of a solder bump by a method wherein a clearance is provided in a position counter to a high frequency circuit chip of a mounting substrate. SOLUTION: A mounting place of a MMIC chip 2 is processed on a semiconductor substrate 11, and a clearance 7 is formed. By using a solder bump 3, the MMIC chip 2 is mounted as a flip chip on the semiconductor substrate 11 in a face-down structure. A high frequency circuit structured on a face of the MMIC chip is deemed to form an upper circuit with only an air. A coplanar type signal bump formation pad and a biasing bump formation pad are formed in an outer periphery of a high frequency circuit formation region. A ground conductor on a reverse face is connected to a signal pad ground conductor via a through hole. Thereby, it is possible to prevent a deterioration of high frequency characteristics and to realize downsizing and high integration by enhancing circuit design precision.

9. 发明专利

JPH0823270A HIGH FREQUENCY SWITCH 失效
公开(公告)号：JPH0823270A
公开(公告)日：1996-01-23
申请号：JP17968594
申请日：1994-07-08
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： TOYODA KAZUHIKO , TOKUMITSU TSUNEO
IPC分类号： H03K17/08 , H03K17/693
摘要： PURPOSE:To handle a large transmission power by providing plural serial semiconductor switches at a received signal path and providing plural serial semiconductor switches between a transmission signal path and the ground inside a transmission/reception switching circuit for radio waves. CONSTITUTION:A voltage nearly 0V is applied to a first control terminal 41, and a negative voltage lower than the pinch-off voltage of an FET is applied to a second control terminal. In this case, FET elements 11a, 11b, 22a and 22b are turned to a conducted state and elements 12 and 21 are turned to an opened state. A signal inputted from an antenna terminal 3 is transmitted to a terminal 1. When a negative voltage lower than the pinch-off of the FET is applied to the control terminal 41 and a voltage nearly 0V is applied to the control terminal 42, the FET elements 11a, 11b, 22a and 22b are turned to the opened state, and the elements 12 and 21 are turned to the conducted state. A signal inputted from a transmission output terminal 2 is transmitted to the antenna terminal 3. Even when any high voltage output signal is applied, that voltage is divided by two pieces of serially connected FET element so that the transmission power about 6dB larger can be handled in comparison with one FET element. Further, the received signal path can be highly isolated as well.

10. 发明专利

JPH07235826A FEEDING CIRCUIT FOR SLOT ANTENNA AND ELECTRONIC CIRCUIT INTEGRATED ANTENNA 失效
公开(公告)号：JPH07235826A
公开(公告)日：1995-09-05
申请号：JP2269094
申请日：1994-02-21
申请人： NIPPON TELEGRAPH & TELEPHONE
发明人： KAMOGAWA KENJI , TOYODA KAZUHIKO , TOKUMITSU TSUNEO , NISHIKAWA KENJIRO
IPC分类号： H01Q23/00 , H01P5/10 , H01Q1/46 , H01Q13/10
摘要： PURPOSE:To form the feeding circuit for the slot antenna on a board on which the slot antenna is formed by forming a coplanar line on the board on which the slot antenna is formed and connecting one terminal of the coplanar line to the slot antenna. CONSTITUTION:A ground conductor 2 is formed on a semiconductor board 21 and a slot antenna 3 and a coplanar line 7 are formed on the ground conductor 2. A center conductor 8 of the coplanar line 7 is extended from a feeding point 3a of the slot antenna 3 and connected to the opposite ground conductor 2 and the coplanar line 7 and the slot antenna 3 are connected. Furthermore, an electronic circuit 9 is formed on the semiconductor board 21 and the electronic circuit 9 and the slot antenna 3 are connected via the coplanar line 7. Thus, the coplanar line 7 is used for a feeding circuit to form the slot antenna 3 and its feeding circuit on a same surface of the semiconductor board 21 and the electronic circuit 9 is mounted on the same surface.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式