TWI382531B - 用於改良式收集之光偵測器以及n層結構 - Google Patents

用於改良式收集之光偵測器以及n層結構 Download PDF

Info

Publication number
TWI382531B
TWI382531B TW095135693A TW95135693A TWI382531B TW I382531 B TWI382531 B TW I382531B TW 095135693 A TW095135693 A TW 095135693A TW 95135693 A TW95135693 A TW 95135693A TW I382531 B TWI382531 B TW I382531B
Authority
TW
Taiwan
Prior art keywords
layer
conductivity type
image sensor
type
photodetector
Prior art date
Application number
TW095135693A
Other languages
English (en)
Other versions
TW200721474A (en
Inventor
Eric G Stevens
David N Nichols
Original Assignee
Omnivision Tech Inc
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Omnivision Tech Inc filed Critical Omnivision Tech Inc
Publication of TW200721474A publication Critical patent/TW200721474A/zh
Application granted granted Critical
Publication of TWI382531B publication Critical patent/TWI382531B/zh

Links

Classifications

    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/14Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
    • H01L27/144Devices controlled by radiation
    • H01L27/146Imager structures
    • H01L27/14601Structural or functional details thereof
    • H01L27/14609Pixel-elements with integrated switching, control, storage or amplification elements
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N25/00Circuitry of solid-state image sensors [SSIS]; Control thereof
    • H04N25/60Noise processing, e.g. detecting, correcting, reducing or removing noise
    • H04N25/62Detection or reduction of noise due to excess charges produced by the exposure, e.g. smear, blooming, ghost image, crosstalk or leakage between pixels
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/14Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
    • H01L27/144Devices controlled by radiation
    • H01L27/146Imager structures
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/14Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
    • H01L27/144Devices controlled by radiation
    • H01L27/146Imager structures
    • H01L27/14601Structural or functional details thereof
    • H01L27/14603Special geometry or disposition of pixel-elements, address-lines or gate-electrodes
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L27/00Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate
    • H01L27/14Devices consisting of a plurality of semiconductor or other solid-state components formed in or on a common substrate including semiconductor components sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation
    • H01L27/144Devices controlled by radiation
    • H01L27/146Imager structures
    • H01L27/14643Photodiode arrays; MOS imagers
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01LSEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L31/00Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L31/0248Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by their semiconductor bodies
    • H01L31/0352Semiconductor devices sensitive to infrared radiation, light, electromagnetic radiation of shorter wavelength or corpuscular radiation and specially adapted either for the conversion of the energy of such radiation into electrical energy or for the control of electrical energy by such radiation; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by their semiconductor bodies characterised by their shape or by the shapes, relative sizes or disposition of the semiconductor regions
    • H01L31/035236Superlattices; Multiple quantum well structures

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Power Engineering (AREA)
  • Electromagnetism (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Solid State Image Pick-Up Elements (AREA)
  • Transforming Light Signals Into Electric Signals (AREA)

Description

用於改良式收集之光偵測器以及N層結構
本發明大體而言係關於影像感應器之領域,且更特定言之,係關於具有一輕微摻雜層之影像感應器,其中該摻雜層之導電類型與用於降低串擾之光偵測器之收集區的導電類型相同。
如此項技術中所熟知:主動CMOS影像感應器通常由一像素陣列組成。通常,每一像素由一光偵測器元件及一或多個讀出表示在光偵測器中所感應之光的電壓之電晶體組成。圖1a展示一用於主動像素影像感應器之典型像素布局。該像素由一光二極體光偵測器(PD)、一用於將光生電荷讀出至浮動擴散(FD)上之轉移閘極(TG)組成,該浮動擴散(FD)將電荷轉換為電壓。使用一重設閘極(RG)以在自光二極體讀出信號之前,將浮動擴散重設為電壓VDD。源極隨耦器電晶體之閘極(SF)連接至浮動擴散,以緩衝來自浮動擴散之信號電壓。此經緩衝的電壓經由一用於選擇待讀出之像素列之列選擇電晶體閘極(RS)連接至VO U T 處之行通路(未展示)。
隨著對於在一給定光學格式中之愈來愈高之解析度的需求推動像素大小變得愈來愈小,維持該裝置之其他關鍵效能態樣日益變得更加困難。詳言之,像素之量子效率及串擾開始隨著像素大小之減小而嚴重降級。(量子效率下降且像素之間的串擾增加。)將串擾定義為非照明像素中之信號與照明像素中之信號的比率,且可將其表達為分數或百分比。因此,串擾表示未被其下產生信號之像素收集之信號的相對量。近來,已出現改良量子效率,但以增加的串擾為代價之方法的描述。(參看美國專利第6,225,670 B1號中之圖4)。或者,已採用用於圖像浮散保護(blooming protection)之垂直溢出汲極(VOD)結構,其以量子效率為代價降低了串擾(S.Inoue等人在Eisoseiho Media Gakkai Gijutsu Hokoku(Technology Report,Image Information Media Association)Eiseigakugiko中之"A 3.25 M-pixel APS-C size CMOS Image Sensor",第25卷,第28號,第37至41頁,2001年3月。ISSN 1342-6893。)。
提高光偵測器之耗盡深度將提高裝置之收集效率,藉此改良量子效率及串擾屬性。過去,此藉由降低製造偵測器之散裝材料之摻雜濃度而實現。然而,已知該方法導致電荷容量降低且增加(自散裝擴散組件)產生之暗電流,進而降低偵測器之動態範圍及曝光寬容度。
美國專利第6,297,070號避免了該等特定困難且描述一光偵測器結構,其中光二極體摻雜比用於製造CMOS影像感應器之其他源極及汲極n型摻雜物更深。增加的耗盡深度提高了收集效率,藉此在降低串擾的同時提高了量子效率。然而,當使用高能植入構建該結構時,n型二極體至p型磊晶接合深度(且因此,耗盡深度)受限於用於阻止來自該裝置之其他區之植入的屏蔽層(通常為光阻)的厚度。因此,可在該步驟中使用之最大阻擋厚度及縱橫比(阻擋高度比阻擋開度)變為一限制因素。
此外,在先前技術中,使用一如藉由圖1b及圖1c中之實例之方式說明之單一、相對淺的植入形成一釘紮光二極體之n型區。圖1d中展示了所得之用於該先前技術之空載光二極體之電位分佈。自該圖中,可見用於該例示性先前技術像素結構之耗盡深度(電位之斜率趨於零之點)僅為約1.2 μm。對於綠色及紅色波長,矽中之吸收深度大於該耗盡深度。因此,產生之大於該耗盡深度之載流子可側向地擴散至相鄰感光單元中,此引起串擾。
因此,此技術中存在提供以下結構之需要:該結構同時改良量子效率及串擾屬性,而不影響其他成像效能特性且不存在上述之製造問題。
本發明係針對克服上文陳述之問題中之一或多個問題。簡要言之,根據本發明之一態樣,本發明在於一種具有一影像區域之影像感應器,該影像區域具有複數個為一第一導電類型之光偵測器,該影像感應器包含:一為第二導電類型之基板;一為該第一導電類型之第一層,其橫跨該影像區域;一為該第二導電類型之第二層;其中該第一層係位於該基板與該第二層之間,且該複數個光偵測器係安置於該第二層中且鄰接該第一層。
本發明之有利作用
本發明具有以下優點:其提供一種同時改良量子效率及串擾屬性兩者而不影響其他成像效能特性的結構。
在詳細論述本發明之前,瞭解影像感應器中之串擾係有益處的。在此點上,將串擾定義為非照明像素中信號與照明像素中之信號之比率,且可將其表達為分數或百分比。因此,串擾表示未被其下產生信號之像素收集之信號相對量。圖2說明例示性像素之串擾及內部量子效率(自覆蓋該光偵測器之任何層無反射或吸收損失)對耗盡深度之依賴關係。串擾計算假定沿一直線之每隔一像素發光(且交替的、相間的像素不發光)。假定波長為650 nm,因為串擾在較長波長中問題更嚴重。自該圖可見,增加耗盡深度可顯著降低串擾同時提高量子效率。此外,本文使用之耗盡深度界定為距離該表面最遠之點,電位之斜率在該點處趨於零。
因此,自圖2可見對於先前技術結構,串擾將為~36%且內部量子效率將為~68%。自圖2亦可見,藉由增加耗盡深度,可顯著降低串擾。
本發明描述一用於主動CMOS影像感應器之光偵測器結構,該光偵測器結構具有延伸的耗盡深度以在維持良好電荷容量及動態範圍特性的同時,提高量子效率且降低像素至像素之串擾。圖3中展示本發明之併入該光偵測器結構之CMOS影像感應器像素之俯視圖,其形成一俯視圖且看上去類似於圖1。此是因為圖3之本發明包括圖1中未展示之額外層,因為額外層位於頂面之下,且因此在俯視圖中不可見(最顯著地為第一層及第二層)。雖然展示之較佳實施例包括一釘紮光二極體,其由p-/p++磊晶基板中之p+釘紮(頂面)層及n型嵌入收集區組成,但熟習此項技術者應瞭解可使用其他結構及摻雜類型而不背離本發明之範疇。舉例而言,需要時,可使用形成於p型基板中之簡單非釘紮n型二極體,或形成於n型基板中之p型二極體。亦應注意,為清晰起見,僅展示本發明之影像感應器之一部分。舉例而言,雖然僅展示一光偵測器,但存在排列於一維陣列或二維陣列中之複數個光偵測器。
參看圖3,其展示本發明之像素10,該像素具有一光二極體光偵測器(PD),一用於將光生電荷讀出至浮動擴散(FD)上之轉移閘極(TG),該浮動擴散將電荷轉換為電壓。重設閘極(RG)用於在自光二極體讀出信號之前將浮動擴散重設為電壓VDD。將源極隨耦器電晶體之閘極(SF)連接至浮動擴散,以緩衝來自浮動擴散之信號電壓。該緩衝電壓藉由一用於選擇待讀出之像素列之列選擇電晶體閘極(RS)連接至VO U T 處之行通路(未展示)。在平面圖(圖3)中,將位於光偵測器外,但在該像素內之區界定為像素電路區。
參看圖4a,其展示本發明之一影像感應器20之橫截面中之側視圖。影像感應器20包括一具有複數個光偵測器30(僅展示其中之一)之成像部分,該複數個光偵測器30較佳地係為兩種導電類型之釘紮光二極體30,較佳地具有n型收集區40及p型釘紮層50。一種導電類型(對於較佳實施例較佳地為p型)之基板60為影像感應器20形成基礎部分。一種導電類型(較佳為n型)之第一層70橫跨該影像區域。應注意,該第一層70實體上接觸光二極體30之n型收集區40,藉此擴展光二極體30之耗盡區及光收集區。一種導電類型(較佳為p型)之第二層80係垂直而與第一層70相鄰地安置,以較佳地為(諸如)電晶體部分形成整個或部分電力組件。視情況,第三層90(較佳為p型磊晶層)可位於該第一層70與該基板60之間。
特別指出:該第一層70係位於該基板60與該第二層80之間,且複數個光偵測器30係安置於該第二層80中且其鄰接該第一層70。該第一層70尤其適於大體上降低自光偵測器30散逸至此層中之電子的串擾。第一層70將引導該等雜散電子中之所有或大體上所有雜散電子返回至最近的光偵測器30中,該光偵測器30係最有可能為電子最初自其散逸出之候選者。
為完整起見,應注意影像感應器20包括一具有一種導電類型(較佳為p型)之通道100的轉移閘極(TG)。如上文論述,該通道由第二層80形成且電荷自光偵測器30經由通道100傳遞至一種導電類型(較佳為n型)之浮動擴散110,該浮動擴散將電荷轉換為電壓。一種導電類型(較佳為p型)之通道阻絕層120側向地與光偵測器30相鄰。如此項技術中所熟知,頂層130形成介電質。
因此,本發明延長了耗盡深度,藉此降低了串擾而不會降低量子效率。本發明添加較深且濃度相對較低的層(第一層70),其接觸光偵測器30中之摻雜分佈之主要、較高濃度之表面部分的背面,如圖4a中及圖4b中展示之例示性結構所示。換言之,由於光偵測器30之下的第一層70具有相對低的摻雜物濃度,其耗盡了自由載子。該較深、側向均勻的低濃度層(第一層70)可藉由一系列或一連串相對低劑量的多個高能植入及/或熱驅而形成。本發明之一替代實施例將為經由磊晶成長,形成第一層70及第二層80及位於基板60之頂部的可選第三層90。因為該較深的第一層70形成於整個像素及影像區域下,所以單個像素中之轉移閘極(TG)、浮動擴散110、源極隨耦器(SF)及任何及所有其他支援電路形成於第二層80中。雖然第一層70無疑能夠延伸,但其無需延伸至影像區域之外側的裝置周邊,在該影像區域中通常具有列及行定址電路、A/D轉換器、類比緩衝器等。較深且均勻的第一層70僅需形成於含有所有成像(及暗參考等)像素之影像區域中。
圖5展示降至偵測器之底部之所得電位分佈,自該圖中可見:新結構之此實例的耗盡深度約為2.3 μm。此耗盡深度可藉由增加金相接合之深度(該深度為第一實施例之植入能量及/或熱驅時間之函數)或僅改變用於替代實施例之各種磊晶層的厚度而進一步增加。
本發明之額外益處為第一層70可在第二層80與第三層90之間耗盡釘紮光二極體區域(亦即,像素電路)之外的區域中的自由載子。耗盡像素電路區下方之區域降低了載流子之側向擴散且導致較低的串擾。
參看圖6,其展示一其中安置有本發明之影像感應器20的數位相機140,以說明本發明之典型商業實施例。
10...像素
20...影像感應器
30...光偵測器/光二極體
40...n型收集區
50...p型釘紮層
60...基板
70...第一層
80...第二層
90...第三層
100...通道
110...浮動擴散
120...通道阻絕層
130...頂層
140...數位相機
圖1a為先前技術影像感應器之俯視圖;圖1b為先前技術影像感應器之二維摻雜;圖1c為先前技術影像感應器之摻雜分佈;圖1d為先前技術影像感應器之電位分佈;圖2為串擾對耗盡深度之圖表;圖3為本發明之影像感應器之俯視圖;圖4a為本發明之影像感應器之橫截面;圖4b為本發明之光偵測器之中心下方之摻雜分佈;圖5為本發明之光偵測器之電位分佈;及圖6為用於說明本發明之一典型商業實施例之普通消費者所習慣使用之數位相機的圖解。
20...影像感應器
30...光偵測器/光二極體
40...n型收集區
50...p型釘紮層
60...基板
70...第一層
80...第二層
90...第三層
100...通道
110...浮動擴散
120...通道阻絕層
130...頂層

Claims (12)

  1. 一種具有一影像區域之影像感應器,該影像區域具有複數個光偵測器,每一光偵測器具有為一第一導電類型之一收集區,該影像感應器包含:(a)一為一第二導電類型之基板;(b)一為該第一導電類型之側向均勻第一層,其橫跨該影像區域;及(c)一為該第二導電類型之第二層;其中,該第一層係位於該基板與該第二層之間,且該複數個收集區係安置於該第二層中且鄰接該第一層。
  2. 如請求項1之影像感應器,其中每一光偵測器進一步包含一為該第二導電類型之釘紮層。
  3. 如請求項1之影像感應器,其中該第一導電類型為n型且該第二導電類型為p型。
  4. 如請求項1之影像感應器,其進一步包含一為該第二導電類型之磊晶層,該磊晶層位於該基板與該第一層之間。
  5. 如請求項1之影像感應器,其中該第一層耗盡該光偵測器之下方的自由載子。
  6. 如請求項5之影像感應器,其中該第一層耗盡該光偵測器及像素電路區之下方的自由載子。
  7. 一種數位相機,其包含:一具有一影像區域之影像感應器,該影像區域具有複數個光偵測器,每一光偵測器具有為一第一導電類型之一收集區,該影像感應器包含: (a)一為一第二導電類型之基板;(b)一為該第一導電類型之側向均勻第一層,其橫跨該影像區域;及(c)一為該第二導電類型之第二層;其中,該第一層係位於該基板與該第二層之間,且該複數個收集區係安置於該第二層中且鄰接該第一層。
  8. 如請求項7之數位相機,其中每一光偵測器進一步包含一為該第二導電類型之釘紮層。
  9. 如請求項7之數位相機,其中該第一導電類型為n型且該第二導電類型為p型。
  10. 如請求項7之數位相機,其進一步包含一為第二導電類型之磊晶層,該磊晶層位於該基板與該第一層之間。
  11. 如請求項7之數位相機,其中該第一層耗盡自由載子。
  12. 如請求項11之數位相機,其中該第一層完全耗盡自由載子。
TW095135693A 2005-09-28 2006-09-27 用於改良式收集之光偵測器以及n層結構 TWI382531B (zh)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US72116805P 2005-09-28 2005-09-28
US11/453,354 US7875916B2 (en) 2005-09-28 2006-06-15 Photodetector and n-layer structure for improved collection efficiency

Publications (2)

Publication Number Publication Date
TW200721474A TW200721474A (en) 2007-06-01
TWI382531B true TWI382531B (zh) 2013-01-11

Family

ID=37581418

Family Applications (1)

Application Number Title Priority Date Filing Date
TW095135693A TWI382531B (zh) 2005-09-28 2006-09-27 用於改良式收集之光偵測器以及n層結構

Country Status (7)

Country Link
US (1) US7875916B2 (zh)
EP (1) EP1938379A2 (zh)
JP (1) JP2009510777A (zh)
KR (1) KR20080050448A (zh)
CN (1) CN101273457B (zh)
TW (1) TWI382531B (zh)
WO (1) WO2007038107A2 (zh)

Families Citing this family (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7875916B2 (en) 2005-09-28 2011-01-25 Eastman Kodak Company Photodetector and n-layer structure for improved collection efficiency
GB0725245D0 (en) 2007-12-28 2008-02-06 Cmosis Nv Semiconductor detector for electromagnetic or particle radiation
US8357984B2 (en) * 2008-02-08 2013-01-22 Omnivision Technologies, Inc. Image sensor with low electrical cross-talk
US20090243025A1 (en) * 2008-03-25 2009-10-01 Stevens Eric G Pixel structure with a photodetector having an extended depletion depth
US7948018B2 (en) * 2008-04-24 2011-05-24 Omnivision Technologies, Inc. Multilayer image sensor structure for reducing crosstalk
US20100109060A1 (en) * 2008-11-06 2010-05-06 Omnivision Technologies Inc. Image sensor with backside photodiode implant
US8772891B2 (en) * 2008-12-10 2014-07-08 Truesense Imaging, Inc. Lateral overflow drain and channel stop regions in image sensors
US7875918B2 (en) * 2009-04-24 2011-01-25 Omnivision Technologies, Inc. Multilayer image sensor pixel structure for reducing crosstalk
JP5971565B2 (ja) * 2011-06-22 2016-08-17 パナソニックIpマネジメント株式会社 固体撮像装置
US8889461B2 (en) 2012-05-29 2014-11-18 Taiwan Semiconductor Manufacturing Company, Ltd. CIS image sensors with epitaxy layers and methods for forming the same
EP2816601B1 (en) * 2013-06-20 2017-03-01 IMEC vzw Improvements in or relating to pinned photodiodes for use in image sensors
JP6607777B2 (ja) 2015-12-28 2019-11-20 ルネサスエレクトロニクス株式会社 半導体装置およびその製造方法

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030096443A1 (en) * 2001-11-16 2003-05-22 Joon Hwang Image sensor and method of manufacturing the same

Family Cites Families (46)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4142195A (en) * 1976-03-22 1979-02-27 Rca Corporation Schottky barrier semiconductor device and method of making same
US4527182A (en) * 1980-09-19 1985-07-02 Nippon Electric Co., Ltd. Semiconductor photoelectric converter making excessive charges flow vertically
JPS6157181A (ja) 1984-08-28 1986-03-24 Sharp Corp 固体撮像装置
JPS62124771A (ja) 1985-11-25 1987-06-06 Sharp Corp 固体撮像装置
JPH0316263A (ja) * 1989-06-14 1991-01-24 Hitachi Ltd 固体撮像素子
US5238864A (en) 1990-12-21 1993-08-24 Mitsubishi Denki Kabushiki Kaisha Method of making solid-state imaging device
JP3128839B2 (ja) * 1991-01-30 2001-01-29 ソニー株式会社 固体撮像装置
DE4209536C3 (de) * 1992-03-24 2000-10-05 Stuttgart Mikroelektronik Bildzelle für einen Bildaufnehmer-Chip
JPH09246514A (ja) * 1996-03-12 1997-09-19 Sharp Corp 増幅型固体撮像装置
EP0809299B1 (en) 1996-05-22 2008-04-23 Eastman Kodak Company Active pixel sensor with punch-through reset and cross-talk suppression
US6297070B1 (en) * 1996-12-20 2001-10-02 Eastman Kodak Company Active pixel sensor integrated with a pinned photodiode
EP0883187A1 (en) * 1997-06-04 1998-12-09 Interuniversitair Micro-Elektronica Centrum Vzw A detector for electromagnetic radiation, pixel structure with high sensitivity using such detector and method of manufacturing such detector
JP3359258B2 (ja) * 1997-05-30 2002-12-24 キヤノン株式会社 光電変換装置及びそれを用いたイメージセンサ、画像読取装置
US6107655A (en) * 1997-08-15 2000-08-22 Eastman Kodak Company Active pixel image sensor with shared amplifier read-out
US5898196A (en) * 1997-10-10 1999-04-27 International Business Machines Corporation Dual EPI active pixel cell design and method of making the same
US6023081A (en) * 1997-11-14 2000-02-08 Motorola, Inc. Semiconductor image sensor
US6127697A (en) 1997-11-14 2000-10-03 Eastman Kodak Company CMOS image sensor
US5952686A (en) 1997-12-03 1999-09-14 Hewlett-Packard Company Salient integration mode active pixel sensor
US6051857A (en) * 1998-01-07 2000-04-18 Innovision, Inc. Solid-state imaging device and method of detecting optical signals using the same
US5880495A (en) * 1998-01-08 1999-03-09 Omnivision Technologies, Inc. Active pixel with a pinned photodiode
US6130422A (en) 1998-06-29 2000-10-10 Intel Corporation Embedded dielectric film for quantum efficiency enhancement in a CMOS imaging device
GB2339333B (en) * 1998-06-29 2003-07-09 Hyundai Electronics Ind Photodiode having charge function and image sensor using the same
JP3457551B2 (ja) 1998-11-09 2003-10-20 株式会社東芝 固体撮像装置
JP4604296B2 (ja) 1999-02-09 2011-01-05 ソニー株式会社 固体撮像装置及びその製造方法
DE19933162B4 (de) 1999-07-20 2004-11-11 Institut für Mikroelektronik Stuttgart Stiftung des öffentlichen Rechts Bildzelle, Bildsensor und Herstellungsverfahren hierfür
US6593607B1 (en) * 1999-09-30 2003-07-15 Pictos Technologies, Inc. Image sensor with enhanced blue response and signal cross-talk suppression
JP4419238B2 (ja) 1999-12-27 2010-02-24 ソニー株式会社 固体撮像素子及びその製造方法
US6950134B2 (en) * 2000-02-22 2005-09-27 Innotech Corporation Method of preventing transfer and storage of non-optically generated charges in solid state imaging device
JP3652608B2 (ja) * 2000-02-22 2005-05-25 イノテック株式会社 固体撮像装置の光信号の蓄積方法
JP4359739B2 (ja) * 2000-10-20 2009-11-04 日本電気株式会社 光電変換素子および固体撮像素子
US6504196B1 (en) * 2001-08-30 2003-01-07 Micron Technology, Inc. CMOS imager and method of formation
FR2844398A1 (fr) * 2002-09-11 2004-03-12 St Microelectronics Sa Photodetecteur d'un capteur d'images
US7091536B2 (en) * 2002-11-14 2006-08-15 Micron Technology, Inc. Isolation process and structure for CMOS imagers
US7087944B2 (en) * 2003-01-16 2006-08-08 Micron Technology, Inc. Image sensor having a charge storage region provided within an implant region
JP2004247407A (ja) * 2003-02-12 2004-09-02 Sharp Corp 固体撮像素子およびその製造方法、携帯型電子機器
JP3891126B2 (ja) * 2003-02-21 2007-03-14 セイコーエプソン株式会社 固体撮像装置
JP2004319683A (ja) * 2003-04-15 2004-11-11 Sharp Corp 固体撮像装置およびその駆動方法
WO2005001939A1 (ja) 2003-06-30 2005-01-06 Rohm Co., Ltd. イメージセンサおよびフォトダイオードの分離構造の形成方法
JP3829830B2 (ja) * 2003-09-09 2006-10-04 セイコーエプソン株式会社 固体撮像装置及びその駆動方法
JP2005209695A (ja) * 2004-01-20 2005-08-04 Toshiba Corp 固体撮像装置およびその製造方法
JP2006294871A (ja) 2005-04-11 2006-10-26 Matsushita Electric Ind Co Ltd 固体撮像装置
KR100690884B1 (ko) 2005-04-28 2007-03-09 삼성전자주식회사 이미지 센서 및 그 제조 방법
US7253461B2 (en) * 2005-05-27 2007-08-07 Dialog Imaging Systems Gmbh Snapshot CMOS image sensor with high shutter rejection ratio
US7875916B2 (en) 2005-09-28 2011-01-25 Eastman Kodak Company Photodetector and n-layer structure for improved collection efficiency
US20070069260A1 (en) 2005-09-28 2007-03-29 Eastman Kodak Company Photodetector structure for improved collection efficiency
US7728277B2 (en) 2005-11-16 2010-06-01 Eastman Kodak Company PMOS pixel structure with low cross talk for active pixel image sensors

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20030096443A1 (en) * 2001-11-16 2003-05-22 Joon Hwang Image sensor and method of manufacturing the same

Also Published As

Publication number Publication date
CN101273457A (zh) 2008-09-24
TW200721474A (en) 2007-06-01
WO2007038107A3 (en) 2007-10-04
JP2009510777A (ja) 2009-03-12
CN101273457B (zh) 2011-11-16
US20070069315A1 (en) 2007-03-29
KR20080050448A (ko) 2008-06-05
WO2007038107A2 (en) 2007-04-05
US7875916B2 (en) 2011-01-25
EP1938379A2 (en) 2008-07-02

Similar Documents

Publication Publication Date Title
TWI382531B (zh) 用於改良式收集之光偵測器以及n層結構
US7728277B2 (en) PMOS pixel structure with low cross talk for active pixel image sensors
US7498650B2 (en) Backside illuminated CMOS image sensor with pinned photodiode
JP6967755B2 (ja) 光検出器
US7154136B2 (en) Isolation structures for preventing photons and carriers from reaching active areas and methods of formation
JP5441986B2 (ja) 固体撮像装置およびカメラ
US7875918B2 (en) Multilayer image sensor pixel structure for reducing crosstalk
US6388243B1 (en) Active pixel sensor with fully-depleted buried photoreceptor
KR100821469B1 (ko) 개선된 컬러 크로스토크를 갖는 소형 cmos 이미지 센서및 그 제조 방법
EP2816601B1 (en) Improvements in or relating to pinned photodiodes for use in image sensors
US6169318B1 (en) CMOS imager with improved sensitivity
US7339216B1 (en) Vertical color filter sensor group array with full-resolution top layer and lower-resolution lower layer
US20070069260A1 (en) Photodetector structure for improved collection efficiency
KR20020042508A (ko) 고체 촬상 장치
KR20080037108A (ko) 이미저에 대해 수직 안티-블루밍 제어 및 크로스토크감소를 위한 매설된 도핑 영역
JP2010056345A (ja) 増幅型固体撮像装置
JP4053651B2 (ja) 電磁放射検出器、該検出器を用いた高感度ピクセル構造、及び該検出器の製造方法
KR100769563B1 (ko) 누설 전류를 감소시킨 이미지 센서
IL275634A (en) Stop grating for a fragmented channel for attenuation of speech mixing in visible imaging arrays