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1. 发明公开

EP1747441A4 RELIABLE PIEZO-RESISTIVE PRESSURE SENSOR 有权
标题翻译： ZUVERLÄSSIGERPIEZORESISTIVER DRUCKSENSOR
公开(公告)号：EP1747441A4
公开(公告)日：2007-10-31
申请号：EP05752165
申请日：2005-05-17
申请人： KAVLICO CORP
发明人： OBERMEIER HORST
IPC分类号： G01L9/00 , G01L7/08 , G01L9/16 , G01L19/06
CPC分类号： G01L19/147 , G01L9/0054 , G01L19/0627
摘要： A pressure sensor system for measuring the pressure of a corrosive media includes a silicon plate forming a diaphragm and a glass plate or ring bonded to said silicon plate with an opening over the diaphragm. The diaphragm has resistive areas of different orientations to provide first resistive areas which have increased resistance with diaphragm deflection, and other areas which have decreased or little change in resistance with diaphragm deflection. The resistive areas may be formed by doping the silicon plate. The resistive areas have broad doped connectors extending outward to areas beyond the seal between the glass plate or ring, to wire bond areas on the silicon plate. Accordingly, the wire bond pads are not exposed to the corrosive media.
摘要翻译：用于测量腐蚀介质的压力的压力传感器系统包括形成隔膜的硅板和通过隔膜上的开口接合到所述硅板的玻璃板或环。膜片具有不同取向的电阻区域，以提供具有增大的膜片偏转阻力的第一电阻区域和其他区域，其中膜片偏转具有减小或几乎不变的电阻。电阻区域可以通过掺杂硅板形成。电阻区域具有宽广的掺杂连接器，其向外延伸到玻璃板或环之间的密封件之外的区域，以及硅板上的引线键合区域。因此，导线接合焊盘不会暴露于腐蚀性介质。

2. 发明公开

EP1440182A4 CORROSION-PROOF PRESSURE TRANSDUCER 审中-公开
标题翻译：腐蚀固体压强转换器的
公开(公告)号：EP1440182A4
公开(公告)日：2006-08-23
申请号：EP02773742
申请日：2002-10-11
申请人： KAVLICO CORP
发明人： PARK KYONG M , NASSAR MARCOS A
IPC分类号： G01L23/24 , F02B77/08 , G01L9/00 , G01L19/06 , G01M15/10 , H01L29/84
CPC分类号： G01L19/147 , G01M15/106 , H01L2224/48091 , H01L2224/48463 , H01L2224/73265 , H01L2924/00014
摘要： A corrosion proof pressure transducer for measuring exhaust gas pressure includes a chip (42) with a semiconductive diaphragm, electronics, and conductive pads (46) thereon; with leads (48) sonically bonded to the pads. To preclude degradation of the transducer by internal combustion engine exhaust gases, the chip may have a thin glass passivation layer, a vacuum deposited polymeric coating and a layer of gel, thereon.

3. 发明公开

EP1339566A2 STABLE, RELIABLE CAPACITIVE OIL DETERIORATION AND LEVEL SENSOR 审中-公开
标题翻译：稳定，可靠，和电容ÖLVERUNREINIGUNGS--PEGELSENSOR
公开(公告)号：EP1339566A2
公开(公告)日：2003-09-03
申请号：EP01985204
申请日：2001-11-12
申请人： KAVLICO CORP
发明人： PARK KYONG M
IPC分类号： B60Q1/00 , G01F23/26 , G01N27/22 , G01N33/28
CPC分类号： G01F23/266 , G01F23/268 , G01N27/221 , G01N33/2888
摘要： A reliable capacitive oil deterioration and level sensor (2) has a conductive housing member (6) that includes a conductive shielding member (6) defining a ground electrode, and a conductive inner member defining a measuring electrode. The shielding member protects the sensor from moving objects that could adversely affect its performance. The housing member (6) is adapted to provide a fluidic connection between an oil container and a space between the ground electrode and the measuring electrode. The sensor (2) also includes electronics adapted to employ this capacitor geometry to generate signals indicative of a degree of deterioration and a level of the oil within the gap. The electronics further include at least one isolating capacitor to eliminate a flow of current between the electrodes that may cause a build up of material on the two electrodes that define the capacitor. This build up of unwanted material may cause an undesirable effect in the sensor output signal.

4. 发明公开

EP0183701A4 VARIABLE CURRENT PRESSURE TRANSDUCER SYSTEM. 无效
标题翻译：变电的压力转换系统。
公开(公告)号：EP0183701A4
公开(公告)日：1989-09-11
申请号：EP85900842
申请日：1985-01-07
申请人： KAVLICO CORP
发明人： PARK KYONG , KAVLI TOM O
IPC分类号： G01L9/00 , G01L9/12 , G01R17/00 , G08C19/02 , H03F3/45
CPC分类号： H03F3/45479 , G01L9/12 , G01R17/00

5. 发明公开

EP2807449A4 ROTARY VARIABLE DIFFERENTIAL TRANSFORMER (RVDT) SENSOR ASSEMBLY WITH AUXILIARY OUTPUT SIGNAL 无效
标题翻译： RVDT-SENSORANORDNUNG MITZUSÄTZLICHENAUSGANGSSIGNALEN
公开(公告)号：EP2807449A4
公开(公告)日：2015-10-14
申请号：EP12866781
申请日：2012-01-27
申请人： KAVLICO CORP
发明人： YAZDANI SAEED , AZIZ HASHMAT
IPC分类号： G01B7/30 , G01D5/20 , G01D5/22
CPC分类号： G01B7/30 , G01D5/2006 , G01D5/2258 , G01D5/2291

6. 发明公开

EP1016135A4 FUSION-BOND ELECTRICAL FEED-THROUGH 失效
标题翻译：电气焊接加工跨河
公开(公告)号：EP1016135A4
公开(公告)日：2006-06-21
申请号：EP98934521
申请日：1998-07-16
申请人： KAVLICO CORP
发明人： ISMAIL M SALLEH , GARABEDIAN RAFFI M , NEILSEN MAX E , PASHBY GARY J , WONG JEFFREY K K
IPC分类号： G01P15/125 , B81B3/00 , B81C1/00 , G01L9/00 , G01L9/12 , H01L21/762 , H01L21/764 , H01L21/768 , H01L23/10 , H01L29/84 , H01L21/465 , G01P15/08 , G01P15/13
CPC分类号： B81C1/00293 , B81B2207/092 , B81C1/00301 , B81C2203/019 , B81C2203/036 , G01L9/0042 , G01L9/0073 , H01L21/76251 , H01L21/764 , H01L21/76898 , H01L23/10 , H01L2924/0002 , H01L2924/00
摘要： A semiconductor device (400) has a flexible structure bonded to a semiconductor substructure to form a cavity. The flexible structure is bonded over a conducting feed-through without the feed-through interfering with a hermetic seal formed by bonding. One embodiment (400) of the device includes depressions (418) that contain edges of a diffused feed-through (410) so that imperfections at the edge (420) of the diffusion (408) do not interfere with bonding. The flexible structure is bonded to elevated areas (404, 406) thus hiding the imperfections. Another embodiment has either a surface or buried well in a semiconductor structure and extending from an active region in the cavity to a point outside the perimeter of the flexible structure. The well provides a conductive feed-through structure without creating imperfections that would interfere with the bonding that seals the cavity.

7. 发明公开

EP1071579A4 CAPACITIVE SENSOR ASSEMBLY WITH SOOT BUILD-UP INHIBITING COATING 审中-公开
标题翻译：与盖以防非法RUSSANSAMMELNS电容式传感器单元
公开(公告)号：EP1071579A4
公开(公告)日：2001-08-01
申请号：EP98957963
申请日：1998-11-13
申请人： KAVLICO CORP
发明人： PARK KYONG M , NGUYEN NHAN , NASSAR MARCOS A
IPC分类号： F01M11/06 , F01M11/10 , G01C9/20 , G01F23/00 , G01F23/26 , G01N27/22 , G01N33/28 , B60Q1/00
CPC分类号： G01N27/226 , G01C9/20 , G01F23/0076 , G01F23/263 , G01N27/221 , G01N33/2888
摘要： A sensor assembly (20) for measuring characteristics of motor oil in a vehicle includes a housing (22) adapted to be mechanically coupled to a vehicle for receiving motor oil of the vehicle and at least one capacitive sensor (68, 70, 72) including sensing electrodes (74, 76) positioned relative to the housing (22) to measure characteristics of motor oil between the sensing electrodes (74, 76). The sensing electrodes (74, 76) are coated with a soot build-up inhibiting coating (204, 206) which, in a preferred embodiment, is a silicone coating. The at least one capacitive sensor (68, 70, 72) includes an oil level sensor (68) and an oil deterioration sensor (72) in a preferred embodiment.

8. 发明公开

EP0965032A4 CAPACITIVE OIL DETERIORATION AND CONTAMINATION SENSOR 失效
标题翻译： KAPAZITIVERÖL-ALTERUNGS UND-VERSCMUTZUNGSSENSOR
公开(公告)号：EP0965032A4
公开(公告)日：2001-05-30
申请号：EP97932524
申请日：1997-07-08
申请人： KAVLICO CORP
发明人： PARK KYONG M , NASSAR MARCOS A
IPC分类号： G01N11/00 , G01N27/22 , G01N33/28 , G01N33/30 , G01N27/26
CPC分类号： G01N27/221 , G01N33/2888 , H01R13/5045
摘要： An oil deterioration and contamination sensor (10) includes a housing (14), a substrate (24) with a first capacitive plate (30) mounted within the housing (14), a second capacitive plate (34) mounted to the housing (14) close to the first capacitive plate (30), and a total reference capacitor which includes an external fixed reference capacitor (58). The second capacitive plate (34) is mounted to the housing (14) such that a mixed fluid including oil freely circulates within a gap (40) between the first and second capacitive plates (30, 34) thereby defining an oil deterioration and contamination sensor capacitor. The respective capacitances of the oil deterioration and contamination capacitor and the total reference capacitor provide an indication of a dielectric constant of the mixed fluid including oil within the gap (40). The sensor (10) includes circuitry to indicate when dielectric cons tant exceeds a predetermined value or exceeds a predetermined value at a rate of dielectric constant change in excess of a maximum ordinary rate of oil dielectric constant change.
摘要翻译：油劣化和污染传感器（10）包括壳体（14），具有安装在壳体（14）内的第一电容板（30）的基板（24），安装到壳体（14）的第二电容板）靠近第一电容板（30），以及包括外部固定参考电容器（58）的总参考电容器。第二电容板（34）安装到壳体（14），使得包含油的混合流体在第一电容板和第二电容板（30,34）之间的间隙（40）内自由循环，从而限定油劣化和污染传感器电容。油劣化和污染电容器和总参考电容器的相应电容提供间隙（40）内的包括油的混合流体的介电常数的指示。传感器（10）包括用于指示介电常数何时超过预定值或超过预定值的电路，介电常数变化率超过最大常规油介电常数变化率。

9. 发明公开

EP0944492A4 CAPACITIVE SENSOR ASSEMBLY 失效
标题翻译：电容式传感器单元
公开(公告)号：EP0944492A4
公开(公告)日：2001-05-02
申请号：EP97908037
申请日：1997-03-03
申请人： KAVLICO CORP
发明人： PARK KYONG M , LE PHUOC VINH , NASSAR MARCOS A
IPC分类号： F01M11/06 , G01C9/20 , G01F23/00 , G01F23/26 , G01N27/22 , G01N33/28 , B60Q1/00 , B60R16/02
CPC分类号： G01N27/221 , G01C9/20 , G01F23/0076 , G01F23/263 , G01N27/226 , G01N33/2888
摘要： A sensor assembly (20) includes a tilt sensor (42), an oil level sensor (68), an oil temperature sensor (70) and an oil deterioration sensor (72), as well as associated output signal conditioning electronics (78, 90, 92) integrated within a common assembly. The sensor assembly (20) is configured to receive a volume of motor oil proportional to a total volume of oil in an engine. The oil level sensor (68), oil temperature sensor (70) and oil deterioration sensor (72) include electrodes which are completely or partially immersed in the volume of motor oil depending upon the total volume of oil in the engine. The tilt sensor (42) includes only two electrodes (48, 50) both of which are at least partially immersed within a controlled volume of dielectric fluid (58) which is physically and electrically isolated from the volume of motor oil. One of the electrodes (50) of the tilt sensor (42) is completely immersed in the controlled volume of dielectric fluid (58) independent of an angle of the tilt sensor (42) relative to a vector (44) representing forces such as gravity applied to the tilt sensor (42).

10. 发明公开

EP0890087A4 CAPACITIVE PRESSURE TRANSDUCER WITH AN INTEGRALLY FORMED FRONT HOUSING AND FLEXIBLE DIAPHRAGM 失效
标题翻译： KAPAZITIVER DRUCKWANDLER MIT INTEGRAL GEFORMTEMTEILGEHÄUSEUND FLEXIBLER MEMBRAN
公开(公告)号：EP0890087A4
公开(公告)日：1999-04-21
申请号：EP97914753
申请日：1997-02-07
申请人： KAVLICO CORP
发明人： PARK KYONG M
IPC分类号： G01L9/00 , G01L9/12
CPC分类号： G01L9/0075
摘要： A simplified capacitive pressure transducer (10) includes a conductive surface (26), a portion of which is a surface of a flexible diaphragm (24) in direct contact with a pressure to be measured, and an insulating substrate (30) defining a plurality of capacitor electrodes sized to accommodate the measurement of pressures within a particular pressure range. The pressure transducer (10) includes a front housing (12) and a rear housing (14) which are fitted together to provide a transducer chamber within which a hybrid circuit (46) is secured. The insulating substrate (30) includes a reference capacitor electrode (40), a variable capacitor electrode (42) and vias (48). The insulating substrate (30) is mechanically coupled to the front housing (12) such that the conductive surface (26) of the front housing (12) and the reference capacitor electrode (40) form a reference capacitor, and the conductive surface (26) and the variable capacitor electrode (42) form a variable capacitor. The reference capacitor electrode (40) and the variable capacitor electrode (42) are electrically connected to the hybrid circuit (46) through the vias (48).
摘要翻译：简化的电容式压力传感器（10）包括导电表面（26）和绝缘衬底（30），所述导电表面（26）的一部分是柔性隔膜（24）的与待测量的压力直接接触的表面，所述绝缘衬底（30）的电容器电极的尺寸被设计成适应特定压力范围内的压力的测量。压力传感器（10）包括装配在一起的前壳体（12）和后壳体（14），以提供其中固定混合电路（46）的换能器室。绝缘衬底（30）包括参考电容器电极（40），可变电容器电极（42）和通孔（48）。绝缘衬底（30）机械连接到前壳体（12），使得前壳体（12）的导电表面（26）和参考电容器电极（40）形成参考电容器，并且导电表面（26 ）和可变电容器电极（42）形成可变电容器。参考电容器电极（40）和可变电容器电极（42）通过通孔（48）电连接到混合电路（46）。

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