JP2012013517A - 温度センサ - Google Patents
温度センサ Download PDFInfo
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- JP2012013517A JP2012013517A JP2010149730A JP2010149730A JP2012013517A JP 2012013517 A JP2012013517 A JP 2012013517A JP 2010149730 A JP2010149730 A JP 2010149730A JP 2010149730 A JP2010149730 A JP 2010149730A JP 2012013517 A JP2012013517 A JP 2012013517A
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Images
Classifications
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- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
- G01J5/12—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using thermoelectric elements, e.g. thermocouples
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
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- G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
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- G01J5/00—Radiation pyrometry, e.g. infrared or optical thermometry
- G01J5/10—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors
- G01J5/12—Radiation pyrometry, e.g. infrared or optical thermometry using electric radiation detectors using thermoelectric elements, e.g. thermocouples
- G01J5/14—Electrical features thereof
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- H01L2224/01—Means for bonding being attached to, or being formed on, the surface to be connected, e.g. chip-to-package, die-attach, "first-level" interconnects; Manufacturing methods related thereto
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- H01L2224/04—Structure, shape, material or disposition of the bonding areas prior to the connecting process
- H01L2224/05—Structure, shape, material or disposition of the bonding areas prior to the connecting process of an individual bonding area
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- H01L2224/44—Structure, shape, material or disposition of the wire connectors prior to the connecting process
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- H01L2224/45099—Material
- H01L2224/451—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof
- H01L2224/45138—Material with a principal constituent of the material being a metal or a metalloid, e.g. boron (B), silicon (Si), germanium (Ge), arsenic (As), antimony (Sb), tellurium (Te) and polonium (Po), and alloys thereof the principal constituent melting at a temperature of greater than or equal to 950°C and less than 1550°C
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- H01L2224/48—Structure, shape, material or disposition of the wire connectors after the connecting process of an individual wire connector
- H01L2224/481—Disposition
- H01L2224/48135—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip
- H01L2224/48137—Connecting between different semiconductor or solid-state bodies, i.e. chip-to-chip the bodies being arranged next to each other, e.g. on a common substrate
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- H01L2224/42—Wire connectors; Manufacturing methods related thereto
- H01L2224/47—Structure, shape, material or disposition of the wire connectors after the connecting process
- H01L2224/49—Structure, shape, material or disposition of the wire connectors after the connecting process of a plurality of wire connectors
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Abstract
【解決手段】物体400から放射された赤外線による熱エネルギを電気エネルギに変換するサーモパイル30aにより構成される感温部(熱電変換部)30を有する赤外線センサ100と、赤外線センサ100の出力に基づいて物体400の温度を演算する演算部124とを備える。演算部124は、赤外線センサ100の出力電圧が、プランクの放射則に従って表され物体400の温度に依存する赤外線センサ100の吸収エネルギ密度と、ステファン−ボルツマンの法則に従って表され赤外線センサ100の温度に依存する赤外線センサ100の放射エネルギ密度との差分に比例すると仮定して求められた演算式を用いて物体400の温度を演算する。
【選択図】図1
Description
−Vt<{Vwell−(Vref+Vo)}<Vt
の関係を満たすように設定されたVref、Vwellの条件で赤外線センサ100を制御すれば、第1の寄生ダイオードおよび第2の寄生ダイオードにリーク電流が流れるのを抑制することができ、S/N比の向上を図れる。すなわち、本実施形態の温度センサでは、MOSトランジスタ4がオンのときに、チャネル形成用領域であるウェル領域41を通るリーク電流が流れるのを抑制することができ、S/N比の向上を図れる。
−Vt<{(Vref+Vo)−Vwell}<Vt
の関係を満たすように設定されたVref、Vwellの条件で赤外線センサ100を制御すれば、第1の寄生ダイオードおよび第2の寄生ダイオードにリーク電流が流れるのを抑制することができ、S/N比の向上を図れる。
また、本実施形態の温度センサは、上述の演算式の係数A,B,D,E,Gを記憶する記憶部としてのメモリ125を有しているが、赤外線センサ100として複数の画素部2が半導体基板1の一表面側においてアレイ状に配置されたものなので、メモリ125においては、係数A,B,D,E,Gが、赤外線センサ100の各画素部2ごとに対応付けて記憶されていることが好ましい。言い換えれば、予め赤外線センサ100の各画素部2ごとに独立して係数A,B,D,E,Gを求めてメモリ125に記憶させておき、演算部124にて画素部2ごとに物体400の温度Toを演算する際に、各画素部2ごとに対応付けられた係数A,B,D,E,Gを読み出して演算を行うことによって、より高精度な温度分布測定が可能となる。
2 画素部
30 感温部(熱電変換部)
30a サーモパイル
100 赤外線センサ
110 サーミスタ
124 演算部
125 メモリ(記憶部)
Claims (7)
- 物体から放射された赤外線による熱エネルギを電気エネルギに変換するサーモパイルにより構成される熱電変換部を有する赤外線センサと、前記赤外線センサの出力電圧に基づいて前記物体の温度を演算する演算部とを備え、前記演算部は、前記赤外線センサの出力電圧が、プランクの放射則に従って表され前記物体の温度に依存する前記赤外線センサの吸収エネルギ密度と、ステファン−ボルツマンの法則に従って表され前記赤外線センサの温度に依存する前記赤外線センサの放射エネルギ密度との差分に比例すると仮定して求められた演算式を用いて前記物体の温度を演算することを特徴とする温度センサ。
- 前記赤外線センサは、前記物体の温度の上昇に伴い出力電圧が低下する負特性を有することを特徴とする請求項1ないし請求項3のいずれか1項に記載の温度センサ。
- 前記赤外線センサは、前記熱電変換部を有する複数の画素部が半導体基板の一表面側においてアレイ状に配置されたものであることを特徴とする請求項1ないし請求項4のいずれか1項に記載の温度センサ。
- 前記演算式の係数を記憶する記憶部を有し、前記赤外線センサが、前記熱電変換部を有する複数の画素部が半導体基板の一表面側においてアレイ状に配置されたものであり、前記記憶部は、前記係数が、前記赤外線センサの前記各画素部ごとに対応付けて記憶されてなることを特徴とする請求項2または請求項3記載の温度センサ。
- 前記演算式の係数を記憶する記憶部を有し、前記赤外線センサが、前記熱電変換部を有する複数の画素部が半導体基板の一表面側においてアレイ状に配置されたものであり、前記記憶部は、前記係数として、前記各画素部ごとに個別に設定された1つの個別係数と、前記各画素部に共通に設定された複数の共通係数とを記憶していることを特徴とする請求項1記載の温度センサ。
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2010149730A JP5530274B2 (ja) | 2010-06-30 | 2010-06-30 | 温度センサ |
TW100122841A TW201213781A (en) | 2010-06-30 | 2011-06-29 | Temperature sensor |
PCT/JP2011/065009 WO2012002480A1 (ja) | 2010-06-30 | 2011-06-30 | 温度センサ |
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Cited By (4)
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JP2017198912A (ja) * | 2016-04-28 | 2017-11-02 | 京セラドキュメントソリューションズ株式会社 | 温度検出装置、画像形成装置、温度検出方法 |
US10641660B2 (en) | 2014-05-30 | 2020-05-05 | Panasonic Corporation | Temperature sensor, device using same, and temperature measurement method |
JP2020143936A (ja) * | 2019-03-04 | 2020-09-10 | パナソニックIpマネジメント株式会社 | 赤外線センサ装置、信号処理装置及び信号処理方法 |
CN113865719A (zh) * | 2021-09-30 | 2021-12-31 | 黄新伦 | 一种适用多环境温度的医用红外额温仪及工作方法 |
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TWI463117B (zh) * | 2013-01-03 | 2014-12-01 | China Steel Corp | Infrared temperature measurement device with auxiliary positioning function |
JP6171636B2 (ja) * | 2013-07-04 | 2017-08-02 | 富士通株式会社 | 赤外線検知装置 |
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EP3584550B1 (en) * | 2017-02-15 | 2023-01-11 | Panasonic Intellectual Property Management Co., Ltd. | Infrared sensor chip, and infrared sensor employing same |
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CN113865719A (zh) * | 2021-09-30 | 2021-12-31 | 黄新伦 | 一种适用多环境温度的医用红外额温仪及工作方法 |
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