Unlock instant, AI-driven research and patent intelligence for your innovation.

A sensing device with a reference capacitance

A technology of sensor devices and reference capacitors, which is applied in the field of sensors, can solve the problems of increasing the thickness of sensors, and achieve the effect of eliminating circuit boards, reducing thickness, and ensuring thinness

Active Publication Date: 2019-10-18
JIANGSU JUNLONG ELECTRIC TECH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, for sensors, a reference capacitor is generally used for reference to obtain accurate sensing results, but the superposition of capacitors in the thickness direction greatly increases the thickness of the sensor

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • A sensing device with a reference capacitance
  • A sensing device with a reference capacitance

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0027] see figure 2 , a sensing device 2 with a reference capacitance, comprising:

[0028] A first substrate 21a, which may be a silicon substrate, on which electronic elements (semiconductor elements) are formed, said first substrate 21a comprising a front surface having a first semiconductor element 22a and a back surface opposite to said front surface;

[0029] The groove 25 on the back side of the first substrate 21a, the depth of the groove 25 is less than or equal to half of the thickness of the first substrate, and the bottom of the groove 25 should be far away from the first semiconductor element 22a ;

[0030] The second substrate 21b fixed on the bottom of the groove 25, the second substrate 21b includes a front with the second semiconductor element 22b and a back opposite to the front, the front of the second substrate 21b is in contact with the front The back side of the first substrate 21a is coplanar;

[0031] The capacitor parallel to the side surface of th...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

The invention provides a sensor device with a reference capacitor. The sensor device with the reference capacitor comprises a first substrate, a groove formed in the back face of the first substrate, a second substrate fixed into the groove, and a capacitor parallel to the side face of the first substrate, wherein the first substrate comprises a front face with a first semiconductor component, and a back face opposite to the front face; the depth of the groove is smaller than or equal to half of the thickness of the first substrate; the second substrate comprises a front face with a second semiconductor component, and a back face opposite to the front face; the front face of the second substrate is coplanar with the back face of the first substrate; the capacitor is cladded by an insulation material.

Description

technical field [0001] The invention relates to the field of sensors, in particular to a sensor device with a reference capacitance. Background technique [0002] The simplest electronic device in the photosensitive sensor is the photoresistor, which can sense the light and dark changes of the light, output a weak electrical signal, and control the automatic switch of the LED lamp through simple electronic circuit amplification. Therefore, it is widely used in automatic control and household appliances. For remote lighting fixtures, such as: automatic brightness adjustment in TVs, automatic exposure in cameras; Stop device and anti-theft alarm device Medium [0003] Photosensitive sensor is one of the most common sensors. It has a wide variety, mainly including: photocell, photomultiplier tube, photoresistor, phototransistor, solar cell, infrared sensor, ultraviolet sensor, fiber optic photoelectric sensor, color sensor, CCD and CMOS image sensor, etc. Major domestic manu...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): H01L27/146
Inventor 王汉清
Owner JIANGSU JUNLONG ELECTRIC TECH