●日本半導体産業人協会(SSIS)の教育委員会委員として
　奉仕しています。また、春と秋に開催の半導体技術講座で、
　　「イメージセンサー賢い目」の講師として奉仕しています。


●韓ドラを見ながら、ハングルを学習しはじめました。

●中学数学でわかる「特殊相対性理論」

●小学校の算数の問題「油わけ算数」

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　　　　　　　萩原良昭著書の紹介です：

「人工知能を支える、デジタル回路の世界」

　　　　　萩原1975年特許の画像

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Pinned_Photodiode_and_SONY_HAD_Sensor_invented_by_Hagiwara.pdf

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Index_A000 Story_of_Pinned_Photo_Diode.html

Index_A001 半導体は現代文明のエンジン

Index_A002 「賢い電子の目」のお話

Index_A003 Image Sensor の基本構造

Index_A004 History of Photodiode

Index_A005 種々の半導体受光素子（　Photodiode )

Index_A006 １９７５年２月SONYに入社して

Index_A007 なぜ　CCD　Image Sensor が消えたのか？

Index_A008 埋め込みPhotodiode と　Pinned Photodiodeの違いは何か？

Index_A009 Device Physics of Pinned Photo Diode.html

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Yoshiaki Hagiwara was invited in the following five international
conferences because of his contributions to the image sensor
community and related digital system LSI chip design works.

See the five invited talks related to the Pinned Photo Diode
which is also called as SONY original Hole Accumulation
Diode (HAD) image sensor.

(1) International Conference CCD79 in Edinburgh, Scotland UK

See http://www.aiplab.com/0-CCD79_1979Hagiwara.pdf

(2) International Conference ESSCIRC2001 in Vilach, Austria.

See http://www.aiplab.com/ESSCIRC2001.pdf

(3) International Conference ESSCIRC2008 in Edinburgh, Scotland UK

See http://www.aiplab.com/0-ESSCIRC2008Hagiwara.pdf

(4) International Conference ISSCC2013 in San Francisco, California USA

See http://www.aiplab.com/ ISSCC2013PanelTalk.pdf

(5) IEEE Computer Society 主催の　Coolchips 2017 at Yokohama, Japan

See http://www.coolchips.org/2017/?page_id=10#panel


Related Works by Hagiwara

(1) Pinned Photo Diode (P+NP) and SONY HAD
(P+NPNsub) are the same thing. Both were invented
by Hagiwara at Sony in 1975 in the Japanese Patents

See http://www.aiplab.com/Pinned_Photo_Diode_1975_invented_by_Hagiwara.pdf

(2) For MOS CTG Global Shutter Memory and Back Light Illumination
PP-NP+N-N+ junction Pinned Photodiode Patent ,
see http://www.aiplab.com/JP1975-127646.pdf

(3) For MOS CTG Global Shutter Memory and Back Light Illumination
NP+N-N+ junction Pinned Photodiode Patent,
see http://www.aiplab.com/JP1975-127647.pdf

(4) For the built-in Vertical Overflow Drain (VOD) function type
P+NPNsub junction Pinned Photodiode Patent,
see http://www.aiplab.com/JP1975-134985.pdf

(5) Hagiwara as a PhD student at CalTech designed
a Fast 128 bit digital data stream parallel comparator
chip, which was fabricated at Intel with the Intel 1101
PMOS process technology.

See http://www.aiplab.com/128_bit_Comparator.pdf

(6) Hagiwara designed a Fast 25 nanosecond access time
4 M bit Cache SRAM chip for digital camera applications.
Intel used the SONY SRAM chips in the Intel boards.
Sony enjoyed SRAM business while many semiconductor
companies in Japan were focusing on the 4 M bit DRAM
chip business.

See http://www.aiplab.com/SONY_4MSRAM_1989.pdf

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　　　　　　　　　More about Appendix Page List
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　000 　　001 　　002 　　003 　　004 　　005 　　006 　　007 　　008 　　009 　　010
　 011 　　012 　　013 　　014 　　015 　　016 　　017 　　018(Ref) 　　019 　　020
021 　　022 　　023 　　024 　　025 　　026 　　027 　　028 　　029 　　030 　　031 　　032 　
　033 　　034 　　035 　　036 　　037 　　038 　　　039 　　040 　　041 　042　０４３
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Device Physics of Pinned Photodiode

JP 1975-127646.pfd

JAP 1975-127647.html
JP 1975-127647.pdf

JAP 1975-134985.html
JP 1975-134985.pdf

JP 1978-1971.pdf

JP 1980-123259.pdf


List.html

index000.html

index000_ImageSensor.html

index_000_introduction.html

index_001_Sony_HAD_senosor.html

indexAIPS.html
indexAIPS01.html

indexA1_What_is_Semiconductor.html
indexA2_What_is_Solar_Cell.html
indexA3_What_is_Solid_State_Image_Semsor.html

indexHADsensor.html

indexHADsensor01.html

index_Hagiwara_Diode.html

index_Fossum_is_a_liar.html


index001_introduction.html

index001_Introduction_of_Hagiwara.html


index002_SONY_original_HAD_sensor.html

index002_What_is_Pinned_Photo_Diode.html


index003_PPD_and_HAD_are_the_same_thing.html

index003_What_is_Digital_Camera_Made_OF


index004_Hagiwara_invented_Pinned_Photo_Diode.html

index004_Hagiwara_Works.html


index005_Hagiwara_1975_Patent.html

index005_Semionductor_Device_Physics_for_PPD.html


index006_Sony_Fairchild_Patent_War.html

index006_Two_1975_Hagiwara_Patents_on_Pinned_Photo_Diode.html


index007_Sony_NEC_Patent_War.html

index007_Two_Japanese_1975_Patents_on_Pinned_Photo_Diode


index008_Fossum_2014_Fake_Paper.html

index008_How_Hagiwara_PPD_Patents_Saved_SONY_Business


index009_Summary.html

Hagiwara_at_Sony_is_the_true_inventor_of_Pinned_Photo_Diode.html

Page001.html
Page002.html
Page003.html
Page004.html
Page005.html
Page006.html
Page007.html
Page008.html
Page009.html
Page010.html
Page011.html
Page012.html
Page013.html
Page100.html

Ref1.html
Ref2.html
Ref3.html
Ref4.html
Ref5.html
Ref6.html
Ref7.html

Story_of_Pinned_Photo_Diode.html

Study_Korean.html

index_A3_1_2_Special_Relativity.html

index_Abura_Wake_Zan.html

index_TsuruKameZan.html

index_01_KisoJouhoSuugaku.html

index_02_OuyouJouhoSuugaku.html

index_03_SuuchiKeisanHou.html

index_04_DigitalCircuits.html

index_05_SemiconductorLSI.html

index_06_RobotKougakuKiso.html

index0-1-1.html
index0-1-2.html
index0-1-3.html
index0-1-4.html
index0-1-5.html
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index0-1-11.html
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index0-1-16.html

index0-2-1.html
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index0-2-5.html
index0-2-6.html
index0-2-7.html
index0-2-8.html
index0-2-9.html

index1-2-1.html

index000_KAIT01.html

index000_KAIT02.html

index000_KAIT03.html


Pinned_Photodiode_and_SONY_HAD_Sensor_invented_by_Hagiwara.pdf


0-CCD79_1979Hagiwara.pdf

0-ESSCIRC2008Hagiwara.pdf

0-HAD_Sensor_Patent_1975Hagiwara.pdf

128_bit_Comparator.pdf

HADsensor_NEC_SONY_Patent.pdf

Hagiwara_invented_pinned_photo_diode_in_1975_01.pdf

JPL_CalTech_Pain.pdf

Pinned_Photo_Diode_1975_invented_by_Hagiwara.pdf

Pinned_Photo_Diode_Patent_by_Hagiwara_at_Sony_in_1975.pdf

Pinned_Photodiode_1978_Paper_by_Hagiwara.pdf

Pinned_Photodiode_Patents_1975.pdf

Hagiwara_Yoshiaki_CaltechDiploma_PhD1975.pdf




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The AIPS image sensor watching at its inventor, Yoshiaki Hagiwara.
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