On-Chip Integration of Pressure Plus 2-Axis (X/Z) Acceleration Composite TPMS Sensors with a Single-Sided Bulk-Micromachining Technique
On-Chip Integration of Pressure Plus 2-Axis (X/Z) Acceleration Composite TPMS Sensors with a Single-Sided Bulk-Micromachining Technique
复制标题
采用单面体微加工技术的压力加 2 轴 (X/Z) 加速复合 TPMS 传感器的片上集成
DOI:
10.3390/mi10070473
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发表时间:
2019-07
期刊:
影响因子:
3.4
通讯作者:
Song Fang
中科院分区:
文献类型:
--
作者:
Wang Jiachou;Song Fang
A novel on-chip integration of pressure plus 2-axis (X/Z) acceleration composite sensors for upgraded production of automobile tire pressure monitoring system (TPMS) is proposed, developed, and characterized. Herein, the X-axis accelerometer is with the cantilever beam-mass structure and is used for automatically identifying and positioning each of the four wheels. The IC-Foundry-Compatible low-cost batch fabrication technique of MIS (i.e., Micro-openings Inter-etch and Sealing) is employed to only fabricate the device from the front side of (111) silicon wafer, without double-sided micromachining, wafer bonding, complex Cavity-SOI (Silicon on Insulator) processing, and expensive SOI-wafer needed. Benefited from the single-wafer front-side fabrication technique on ordinary single-polished wafers, the fabricated composite TPMS sensor has the advantages of a small chip-size of 1.9 mm × 1.9 mm, low cross-talk interference, low-cost, and compatible process with IC-foundries. The fabricated pressure sensors, X-axis accelerometer and Z-axis accelerometer, show linear sensing outputs, with the sensitivities as about 0.102 mV/kPa, 0.132 mV/kPa, and 0.136 mV/kPa, respectively. Fabricated with the low-cost front-side MIS process, the fabricated composite TPMS sensors are promising in automotive electronics and volume production.
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DOI:
10.1016/s1386-2766(00)x8001-2
发表时间:
2000-10
期刊:
--
影响因子:
--
作者:
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DOI:
10.1109/sensor.2009.5285926
发表时间:
2009-06
期刊:
TRANSDUCERS 2009 - 2009 International Solid-State Sensors, Actuators and Microsystems Conference
影响因子:
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作者:
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影响因子:
4.9
作者:
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通讯作者:
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DOI:
10.1088/0960-1317/19/1/015023
发表时间:
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影响因子:
2.3
作者:
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作者:
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