JP6324663B2 - 温度センサ回路 - Google Patents
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- JP6324663B2 JP6324663B2 JP2013094889A JP2013094889A JP6324663B2 JP 6324663 B2 JP6324663 B2 JP 6324663B2 JP 2013094889 A JP2013094889 A JP 2013094889A JP 2013094889 A JP2013094889 A JP 2013094889A JP 6324663 B2 JP6324663 B2 JP 6324663B2
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- 239000004065 semiconductor Substances 0.000 claims description 206
- 230000008859 change Effects 0.000 claims description 16
- 229910021421 monocrystalline silicon Inorganic materials 0.000 claims description 9
- 229910052733 gallium Inorganic materials 0.000 claims description 5
- 229910052738 indium Inorganic materials 0.000 claims description 5
- 229910052725 zinc Inorganic materials 0.000 claims description 4
- 230000003321 amplification Effects 0.000 claims 1
- 238000003199 nucleic acid amplification method Methods 0.000 claims 1
- 239000010408 film Substances 0.000 description 246
- 239000000758 substrate Substances 0.000 description 39
- 239000011701 zinc Substances 0.000 description 36
- 239000013078 crystal Substances 0.000 description 35
- 239000010410 layer Substances 0.000 description 30
- ORQBXQOJMQIAOY-UHFFFAOYSA-N nobelium Chemical compound [No] ORQBXQOJMQIAOY-UHFFFAOYSA-N 0.000 description 26
- 230000015572 biosynthetic process Effects 0.000 description 25
- 230000006870 function Effects 0.000 description 20
- 239000012535 impurity Substances 0.000 description 18
- 238000001514 detection method Methods 0.000 description 16
- 239000004973 liquid crystal related substance Substances 0.000 description 15
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 description 9
- 229910052751 metal Inorganic materials 0.000 description 9
- 238000000034 method Methods 0.000 description 9
- 229910052710 silicon Inorganic materials 0.000 description 9
- 239000010703 silicon Substances 0.000 description 9
- 239000002184 metal Substances 0.000 description 8
- 239000000843 powder Substances 0.000 description 7
- XLOMVQKBTHCTTD-UHFFFAOYSA-N Zinc monoxide Chemical compound [Zn]=O XLOMVQKBTHCTTD-UHFFFAOYSA-N 0.000 description 6
- 239000002245 particle Substances 0.000 description 6
- 239000003381 stabilizer Substances 0.000 description 6
- 229910020994 Sn-Zn Inorganic materials 0.000 description 5
- 229910009069 Sn—Zn Inorganic materials 0.000 description 5
- 125000004429 atom Chemical group 0.000 description 5
- 238000010438 heat treatment Methods 0.000 description 5
- -1 for example Substances 0.000 description 4
- 239000007789 gas Substances 0.000 description 4
- 238000002955 isolation Methods 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 230000001681 protective effect Effects 0.000 description 4
- 229910018137 Al-Zn Inorganic materials 0.000 description 3
- 229910018573 Al—Zn Inorganic materials 0.000 description 3
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 3
- 230000007547 defect Effects 0.000 description 3
- 238000000151 deposition Methods 0.000 description 3
- 230000008021 deposition Effects 0.000 description 3
- 239000001301 oxygen Substances 0.000 description 3
- 229910052760 oxygen Inorganic materials 0.000 description 3
- 238000004544 sputter deposition Methods 0.000 description 3
- 238000002834 transmittance Methods 0.000 description 3
- 239000011787 zinc oxide Substances 0.000 description 3
- 102100036285 25-hydroxyvitamin D-1 alpha hydroxylase, mitochondrial Human genes 0.000 description 2
- 229910018120 Al-Ga-Zn Inorganic materials 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 2
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 2
- 101000875403 Homo sapiens 25-hydroxyvitamin D-1 alpha hydroxylase, mitochondrial Proteins 0.000 description 2
- 229910020833 Sn-Al-Zn Inorganic materials 0.000 description 2
- 229910020868 Sn-Ga-Zn Inorganic materials 0.000 description 2
- 229910052783 alkali metal Inorganic materials 0.000 description 2
- 150000001340 alkali metals Chemical class 0.000 description 2
- 229910021417 amorphous silicon Inorganic materials 0.000 description 2
- 238000004458 analytical method Methods 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- 229910052732 germanium Inorganic materials 0.000 description 2
- GNPVGFCGXDBREM-UHFFFAOYSA-N germanium atom Chemical compound [Ge] GNPVGFCGXDBREM-UHFFFAOYSA-N 0.000 description 2
- 239000001257 hydrogen Substances 0.000 description 2
- 229910052739 hydrogen Inorganic materials 0.000 description 2
- 230000001788 irregular Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910044991 metal oxide Inorganic materials 0.000 description 2
- 150000004706 metal oxides Chemical class 0.000 description 2
- 239000013081 microcrystal Substances 0.000 description 2
- 230000005012 migration Effects 0.000 description 2
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- 230000003647 oxidation Effects 0.000 description 2
- 238000007254 oxidation reaction Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 229910052684 Cerium Inorganic materials 0.000 description 1
- 229910052692 Dysprosium Inorganic materials 0.000 description 1
- 229910052691 Erbium Inorganic materials 0.000 description 1
- 229910052693 Europium Inorganic materials 0.000 description 1
- 229910052688 Gadolinium Inorganic materials 0.000 description 1
- GYHNNYVSQQEPJS-UHFFFAOYSA-N Gallium Chemical compound [Ga] GYHNNYVSQQEPJS-UHFFFAOYSA-N 0.000 description 1
- 229910001218 Gallium arsenide Inorganic materials 0.000 description 1
- JMASRVWKEDWRBT-UHFFFAOYSA-N Gallium nitride Chemical compound [Ga]#N JMASRVWKEDWRBT-UHFFFAOYSA-N 0.000 description 1
- 229910052689 Holmium Inorganic materials 0.000 description 1
- 229910052765 Lutetium Inorganic materials 0.000 description 1
- 229910052779 Neodymium Inorganic materials 0.000 description 1
- 229910052777 Praseodymium Inorganic materials 0.000 description 1
- 229910052772 Samarium Inorganic materials 0.000 description 1
- 229910020944 Sn-Mg Inorganic materials 0.000 description 1
- 229910052771 Terbium Inorganic materials 0.000 description 1
- 229910052775 Thulium Inorganic materials 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 238000002441 X-ray diffraction Methods 0.000 description 1
- 229910052769 Ytterbium Inorganic materials 0.000 description 1
- 229910052784 alkaline earth metal Inorganic materials 0.000 description 1
- 150000001342 alkaline earth metals Chemical class 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 239000003990 capacitor Substances 0.000 description 1
- 239000001569 carbon dioxide Substances 0.000 description 1
- 229910002092 carbon dioxide Inorganic materials 0.000 description 1
- GWXLDORMOJMVQZ-UHFFFAOYSA-N cerium Chemical compound [Ce] GWXLDORMOJMVQZ-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 150000001875 compounds Chemical class 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000002425 crystallisation Methods 0.000 description 1
- 230000008025 crystallization Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- AJNVQOSZGJRYEI-UHFFFAOYSA-N digallium;oxygen(2-) Chemical compound [O-2].[O-2].[O-2].[Ga+3].[Ga+3] AJNVQOSZGJRYEI-UHFFFAOYSA-N 0.000 description 1
- KBQHZAAAGSGFKK-UHFFFAOYSA-N dysprosium atom Chemical compound [Dy] KBQHZAAAGSGFKK-UHFFFAOYSA-N 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- UYAHIZSMUZPPFV-UHFFFAOYSA-N erbium Chemical compound [Er] UYAHIZSMUZPPFV-UHFFFAOYSA-N 0.000 description 1
- OGPBJKLSAFTDLK-UHFFFAOYSA-N europium atom Chemical compound [Eu] OGPBJKLSAFTDLK-UHFFFAOYSA-N 0.000 description 1
- UIWYJDYFSGRHKR-UHFFFAOYSA-N gadolinium atom Chemical compound [Gd] UIWYJDYFSGRHKR-UHFFFAOYSA-N 0.000 description 1
- 229910001195 gallium oxide Inorganic materials 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 229910052735 hafnium Inorganic materials 0.000 description 1
- VBJZVLUMGGDVMO-UHFFFAOYSA-N hafnium atom Chemical compound [Hf] VBJZVLUMGGDVMO-UHFFFAOYSA-N 0.000 description 1
- KJZYNXUDTRRSPN-UHFFFAOYSA-N holmium atom Chemical compound [Ho] KJZYNXUDTRRSPN-UHFFFAOYSA-N 0.000 description 1
- 125000004435 hydrogen atom Chemical class [H]* 0.000 description 1
- APFVFJFRJDLVQX-UHFFFAOYSA-N indium atom Chemical compound [In] APFVFJFRJDLVQX-UHFFFAOYSA-N 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 150000002500 ions Chemical class 0.000 description 1
- 229910052747 lanthanoid Inorganic materials 0.000 description 1
- 150000002602 lanthanoids Chemical class 0.000 description 1
- 229910052746 lanthanum Inorganic materials 0.000 description 1
- FZLIPJUXYLNCLC-UHFFFAOYSA-N lanthanum atom Chemical compound [La] FZLIPJUXYLNCLC-UHFFFAOYSA-N 0.000 description 1
- 238000005224 laser annealing Methods 0.000 description 1
- OHSVLFRHMCKCQY-UHFFFAOYSA-N lutetium atom Chemical compound [Lu] OHSVLFRHMCKCQY-UHFFFAOYSA-N 0.000 description 1
- 239000002159 nanocrystal Substances 0.000 description 1
- QEFYFXOXNSNQGX-UHFFFAOYSA-N neodymium atom Chemical compound [Nd] QEFYFXOXNSNQGX-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
- 230000003287 optical effect Effects 0.000 description 1
- 238000005268 plasma chemical vapour deposition Methods 0.000 description 1
- 229910021420 polycrystalline silicon Inorganic materials 0.000 description 1
- PUDIUYLPXJFUGB-UHFFFAOYSA-N praseodymium atom Chemical compound [Pr] PUDIUYLPXJFUGB-UHFFFAOYSA-N 0.000 description 1
- KZUNJOHGWZRPMI-UHFFFAOYSA-N samarium atom Chemical compound [Sm] KZUNJOHGWZRPMI-UHFFFAOYSA-N 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000001004 secondary ion mass spectrometry Methods 0.000 description 1
- VSZWPYCFIRKVQL-UHFFFAOYSA-N selanylidenegallium;selenium Chemical compound [Se].[Se]=[Ga].[Se]=[Ga] VSZWPYCFIRKVQL-UHFFFAOYSA-N 0.000 description 1
- SBIBMFFZSBJNJF-UHFFFAOYSA-N selenium;zinc Chemical compound [Se]=[Zn] SBIBMFFZSBJNJF-UHFFFAOYSA-N 0.000 description 1
- 238000012916 structural analysis Methods 0.000 description 1
- 239000002344 surface layer Substances 0.000 description 1
- JBQYATWDVHIOAR-UHFFFAOYSA-N tellanylidenegermanium Chemical compound [Te]=[Ge] JBQYATWDVHIOAR-UHFFFAOYSA-N 0.000 description 1
- GZCRRIHWUXGPOV-UHFFFAOYSA-N terbium atom Chemical compound [Tb] GZCRRIHWUXGPOV-UHFFFAOYSA-N 0.000 description 1
- 239000010409 thin film Substances 0.000 description 1
- FRNOGLGSGLTDKL-UHFFFAOYSA-N thulium atom Chemical compound [Tm] FRNOGLGSGLTDKL-UHFFFAOYSA-N 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 229910001868 water Inorganic materials 0.000 description 1
- NAWDYIZEMPQZHO-UHFFFAOYSA-N ytterbium Chemical compound [Yb] NAWDYIZEMPQZHO-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
- G01K7/00—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements
- G01K7/01—Measuring temperature based on the use of electric or magnetic elements directly sensitive to heat ; Power supply therefor, e.g. using thermoelectric elements using semiconducting elements having PN junctions
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Thin Film Transistor (AREA)
- Liquid Crystal (AREA)
- Metal-Oxide And Bipolar Metal-Oxide Semiconductor Integrated Circuits (AREA)
Description
図1に、本発明の一態様に係る温度センサ回路の構成例を示す。図1に示す温度センサ回路100は、半導体素子101、半導体素子102、定電流回路103、定電流回路104、増幅回路105を有する。
次いで、本発明の一態様に係る半導体装置300の構成を、図6にブロック図で一例として示す。図6に示す半導体装置300は、温度センサ回路100と、信号処理回路301と、出力装置302とを有する。図6では、図1に示した温度センサ回路100を有する半導体装置の構成を例示しているが、本発明の一態様に係る半導体装置は、図2(A)、図3、または図4に示した温度センサ回路100を有していても良い。
次いで、酸化物半導体を活性層に用いたトランジスタの構造例について説明する。
図9に、発明の一態様に係る温度センサ回路の断面構造の一部を、一例として示す。なお、図9では、図2(A)に示す温度センサ回路100が有する、トランジスタ101tと、図5(A)に示す定電流回路103が有するトランジスタ140とが、積層されている場合を、図示している。
101 半導体素子
101t トランジスタ
102 半導体素子
102t トランジスタ
103 定電流回路
104 定電流回路
105 増幅回路
106 ADC
107 演算回路
108 LUT
109 出力端子
110 出力端子
120 基板
121 半導体膜
121c チャネル形成領域
121d ドレイン領域
121s ソース領域
122 ソース電極
123 ドレイン電極
124 ゲート絶縁膜
125 ゲート電極
126 絶縁膜
127 導電膜
140 トランジスタ
141 抵抗素子
201 定電圧回路
202 定電圧回路
203 負荷
204 負荷
205 トランジスタ
206 トランジスタ
207 差動増幅回路
208 差動増幅回路
213 電圧源
300 半導体装置
301 信号処理回路
302 出力装置
310 コントローラ
311 パネル
312 画素部
313 液晶素子
314 駆動回路
315 駆動回路
316 画像信号
400 半導体基板
401 素子分離用絶縁膜
402 pウェル
403 不純物領域
404 不純物領域
405 ゲート電極
406 ゲート絶縁膜
409 絶縁膜
410 配線
411 配線
412 配線
415 配線
416 配線
420 絶縁膜
421 配線
430 半導体膜
431 ゲート絶縁膜
432 導電膜
433 導電膜
434 ゲート電極
441 絶縁膜
442 導電膜
443 導電膜
444 導電膜
445 絶縁膜
446 導電膜
447 導電膜
448 導電膜
449 導電膜
601 トランジスタ
602 ゲート電極
603 ゲート絶縁膜
604 酸化物半導体膜
605 導電膜
606 導電膜
607 絶縁膜
611 トランジスタ
612 ゲート電極
613 ゲート絶縁膜
614 酸化物半導体膜
615 導電膜
616 導電膜
617 絶縁膜
618 チャネル保護膜
621 トランジスタ
622 ゲート電極
623 ゲート絶縁膜
624 酸化物半導体膜
625 導電膜
626 導電膜
627 絶縁膜
641 トランジスタ
642 ゲート電極
643 ゲート絶縁膜
644 酸化物半導体膜
645 導電膜
646 導電膜
647 絶縁膜
Claims (3)
- 第1定電流回路と、
前記第1定電流回路から供給される第1電流に従って、第1電圧が一対の端子間に生じる第1半導体素子と、
第2定電流回路と、
前記第2定電流回路から供給される第2電流に従って、第2電圧が一対の端子間に生じる第2半導体素子と、
前記第1電圧及び前記第2電圧の差分を増幅する増幅回路と、を有し、
前記第1電圧が前記第1半導体素子の温度によって変化する割合は、前記第2電圧が前記第2半導体素子の温度によって変化する割合よりも大きく、
前記第1半導体素子は、
単結晶シリコンを活性層として用いた第1のトランジスタであり、
前記第1のトランジスタのソースまたはドレインの一方は、前記第1のトランジスタのゲートと電気的に接続し、
前記第2半導体素子は、
酸化物半導体を活性層として用いた第2のトランジスタであり、
前記第2のトランジスタのソースまたはドレインの一方は、前記第2のトランジスタのゲートと電気的に接続する温度センサ回路。 - 第1定電圧回路と、
前記第1定電圧回路から供給される第1電圧に従って、第1電流が一対の端子間に流れる第1半導体素子と、
前記第1電流が供給されることで端子間に第2電圧が生じる第1負荷と、
第2定電圧回路と、
前記第2定電圧回路から供給される第3電圧に従って、第2電流が一対の端子間に流れる第2半導体素子と、
前記第2電流が供給されることで端子間に第4電圧が生じる第2負荷と、
前記第2電圧及び前記第4電圧の差分を増幅する増幅回路と、を有し、
前記第1電流が前記第1半導体素子の温度によって変化する割合は、前記第2電流が前記第2半導体素子の温度によって変化する割合よりも大きく、
前記第1半導体素子は、
単結晶シリコンを活性層として用いた第1のトランジスタであり、
前記第1のトランジスタのソースまたはドレインの一方は、前記第1のトランジスタのゲートと電気的に接続し、
前記第2半導体素子は、
酸化物半導体を活性層として用いた第2のトランジスタであり、
前記第2のトランジスタのソースまたはドレインの一方は、前記第2のトランジスタのゲートと電気的に接続する温度センサ回路。 - 請求項1または請求項2において、
前記酸化物半導体は、In、Ga、及びZnを含む温度センサ回路。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
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JP2013094889A JP6324663B2 (ja) | 2012-05-02 | 2013-04-30 | 温度センサ回路 |
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JP2012105460 | 2012-05-02 | ||
JP2012105460 | 2012-05-02 | ||
JP2013094889A JP6324663B2 (ja) | 2012-05-02 | 2013-04-30 | 温度センサ回路 |
Publications (3)
Publication Number | Publication Date |
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JP2013250262A JP2013250262A (ja) | 2013-12-12 |
JP2013250262A5 JP2013250262A5 (ja) | 2016-06-02 |
JP6324663B2 true JP6324663B2 (ja) | 2018-05-16 |
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JP2013094889A Expired - Fee Related JP6324663B2 (ja) | 2012-05-02 | 2013-04-30 | 温度センサ回路 |
Country Status (3)
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US (2) | US9435696B2 (ja) |
JP (1) | JP6324663B2 (ja) |
KR (1) | KR102025722B1 (ja) |
Families Citing this family (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US8836555B2 (en) | 2012-01-18 | 2014-09-16 | Semiconductor Energy Laboratory Co., Ltd. | Circuit, sensor circuit, and semiconductor device using the sensor circuit |
US9536876B2 (en) * | 2013-08-01 | 2017-01-03 | Taiwan Semiconductor Manufacturing Company Ltd. | Temperature detector and controlling heat |
KR20160114511A (ko) | 2015-03-24 | 2016-10-05 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 반도체 장치의 제작 방법 |
US9806200B2 (en) | 2015-03-27 | 2017-10-31 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device |
US9825177B2 (en) | 2015-07-30 | 2017-11-21 | Semiconductor Energy Laboratory Co., Ltd. | Manufacturing method of a semiconductor device using multiple etching mask |
US9977454B1 (en) * | 2015-09-23 | 2018-05-22 | Cadence Design Systems, Inc. | Methods and apparatuses for a CMOS-based process insensitive current reference circuit |
US9984624B2 (en) * | 2015-12-28 | 2018-05-29 | Semiconductor Energy Laboratory Co., Ltd. | Semiconductor device, driver IC, and electronic device |
DE112018001207T5 (de) | 2017-03-07 | 2019-11-21 | Semiconductor Energy Laboratory Co., Ltd. | IC, Treiber-IC, Anzeigesystem und Elektronisches Gerät |
KR102637438B1 (ko) | 2017-06-27 | 2024-02-15 | 가부시키가이샤 한도오따이 에네루기 켄큐쇼 | 반도체 장치 및 전자 부품 |
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TW201344288A (zh) * | 2012-04-20 | 2013-11-01 | Novatek Microelectronics Corp | 顯示面板溫度感測裝置 |
-
2013
- 2013-04-24 KR KR1020130045645A patent/KR102025722B1/ko active IP Right Grant
- 2013-04-30 US US13/873,550 patent/US9435696B2/en not_active Expired - Fee Related
- 2013-04-30 JP JP2013094889A patent/JP6324663B2/ja not_active Expired - Fee Related
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2016
- 2016-08-09 US US15/232,120 patent/US10001414B2/en not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
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KR102025722B1 (ko) | 2019-09-26 |
KR20130123315A (ko) | 2013-11-12 |
US20160349119A1 (en) | 2016-12-01 |
US10001414B2 (en) | 2018-06-19 |
JP2013250262A (ja) | 2013-12-12 |
US9435696B2 (en) | 2016-09-06 |
US20130294481A1 (en) | 2013-11-07 |
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