Patents by Inventor I-Chang Lee
I-Chang Lee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 11996327Abstract: An interconnect structure, along with methods of forming such, are described. In some embodiments, the method includes forming a first dielectric layer over one or more devices, forming a first conductive feature in the first dielectric layer, and forming two dielectric features over the first dielectric layer and the first conductive feature. At least one of the two dielectric features has a first width, and each dielectric feature includes a first low-k dielectric layer, an oxide layer, and a first etch stop layer. The method further includes forming a second conductive feature between the two dielectric features, and the second conductive feature has a second width substantially the same as the first width.Type: GrantFiled: September 13, 2021Date of Patent: May 28, 2024Assignee: TAIWAN SEMICONDUCTOR MANUFACTURING COMPANY, LTD.Inventors: Yu-An Chen, I-Chang Lee, Chih-Yuan Ting
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Publication number: 20240145596Abstract: A device includes a fin extending from a semiconductor substrate; a gate stack over the fin; a first spacer on a sidewall of the gate stack; a source/drain region in the fin adjacent the first spacer; an inter-layer dielectric layer (ILD) extending over the gate stack, the first spacer, and the source/drain region, the ILD having a first portion and a second portion, wherein the second portion of the ILD is closer to the gate stack than the first portion of the ILD; a contact plug extending through the ILD and contacting the source/drain region; a second spacer on a sidewall of the contact plug; and an air gap between the first spacer and the second spacer, wherein the first portion of the ILD extends across the air gap and physically contacts the second spacer, wherein the first portion of the ILD seals the air gap.Type: ApplicationFiled: January 2, 2024Publication date: May 2, 2024Inventors: Su-Hao Liu, Kuo-Ju Chen, Kai-Hsuan Lee, I-Hsieh Wong, Cheng-Yu Yang, Liang-Yin Chen, Huicheng Chang, Yee-Chia Yeo, Syun-Ming Jang, Meng-Han Chou
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Patent number: 11935969Abstract: A photodetector includes a first semiconductor layer, an absorption structure, a second semiconductor layer, and a barrier structure. The absorption structure is located on the first semiconductor layer, and having a first conduction band, a first valence band, and a first band gap. The second semiconductor layer is located on the absorption structure, and having a second conduction band, a second valence band, and a second band gap. The barrier structure is located between the absorption structure and the second semiconductor layer, and having a third conduction band, a third valence band, and a third band gap. The third conduction band is greater than the second conduction band or the third valence band is less than the second valence band.Type: GrantFiled: November 9, 2020Date of Patent: March 19, 2024Assignee: EPISTAR CORPORATIONInventors: Shih-Chang Lee, Shiuan-Leh Lin, I-Hung Chen, Chu-Jih Su, Chao-Shun Huang
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Publication number: 20220344204Abstract: An interconnect structure, along with methods of forming such, are described. In some embodiments, the method includes forming a first dielectric layer over one or more devices, forming a first conductive feature in the first dielectric layer, and forming two dielectric features over the first dielectric layer and the first conductive feature. At least one of the two dielectric features has a first width, and each dielectric feature includes a first low-k dielectric layer, an oxide layer, and a first etch stop layer. The method further includes forming a second conductive feature between the two dielectric features, and the second conductive feature has a second width substantially the same as the first width.Type: ApplicationFiled: September 13, 2021Publication date: October 27, 2022Inventors: Yu-An CHEN, I-Chang LEE, Chih-Yuan TING
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Patent number: 7654687Abstract: A light mixer includes a light mixing plate, a plurality of light sources, a plurality of upper reflecting layers, a lower reflecting layer, and a semi-permeable layer. The light mixing plate has an upper surface, a lower surface, a peripheral surface, and a plurality of receiving holes. The light sources are respectively located in the receiving holes. The upper reflecting layers are respectively located right above the light sources. The lower reflecting layer is located on the lower surface of the light mixing plate. The semi-permeable layer wraps the peripheral surface of the light mixing plate. A diffuser is located above the light mixers.Type: GrantFiled: March 7, 2007Date of Patent: February 2, 2010Assignee: Chi Lin Technology Co., Ltd.Inventors: Shen-Yin Tsai, Chin-Lung Kuo, Yao-Yuan Kuo, I-Chang Lee
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Patent number: 7495723Abstract: An LED array includes a plurality of first and second light-emitting rows. Each of the first light-emitting rows is composed of a plurality of red and green LEDs arranged linearly alternately. Each of the second light-emitting rows is composed of a plurality of green and blue LEDs arranged linearly alternately. The first and second light-emitting rows are parallel to each other and arranged alternately. Thus, the LED array can generate preferably equable arrangement of colored light to output preferably equable light mixture. In any 2×2 matrix, there are two green, one red, and one blue LEDs.Type: GrantFiled: February 28, 2006Date of Patent: February 24, 2009Assignee: Chi Lin Technology Co., Ltd.Inventors: Feng-Chien Chung, Shen-Yin Tsai, I-Chang Lee
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Publication number: 20080137335Abstract: A light mixer and a backlight module having the light mixer are provided. The backlight module includes a plurality of light mixers and a diffuser. The light mixers are arranged on a plane in an array. Each light mixer includes a light mixing plate, a plurality of light sources, a plurality of upper reflecting layers, a lower reflecting layer, and a semi-permeable layer. The light mixing plate has an upper surface, a lower surface, a peripheral surface, and a plurality of receiving holes. The light sources are respectively located in the receiving holes. The upper reflecting layers are respectively located right above the light sources. The lower reflecting layer is located on the lower surface of the light mixing plate. The semi-permeable layer wraps the peripheral surface of the light mixing plate. The diffuser is located above the light mixers.Type: ApplicationFiled: March 7, 2007Publication date: June 12, 2008Inventors: Shen-Yin Tsai, Chin-Lung Kuo, Yao-Yuan Kuo, I-Chang Lee
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Patent number: 7347590Abstract: A lens used for a light-emitting diode (LED) includes a body having an axis and a retaining part, wherein the body of the lens is symmetrical about the axis. The lens is mounted onto an LED and further includes a first lens part and a second lens part. When entering into the first lens part, light rays will be totally reflected through the first lens part and the light rays emitted from the first lens part will approximately parallel to the axis. When the light rays emitted from the first lens part enter into the second lens part, they will be totally reflected, and the light rays emitted from the second lens part will be approximately perpendicular to the axis. Thus, the lens has a structure that may control the emitting direction of light emitted from an LED.Type: GrantFiled: November 16, 2005Date of Patent: March 25, 2008Assignee: Chi Lin Technology Co., LtdInventors: I-Chang Lee, Shen-Yin Tsai
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Publication number: 20070103054Abstract: An LED array includes a plurality of first and second light-emitting rows. Each of the first light-emitting rows is composed of a plurality of red and green LEDs arranged linearly alternately. Each of the second light-emitting rows is composed of a plurality of green and blue LEDs arranged linearly alternately. The first and second light-emitting rows are parallel to each other and arranged alternately. Thus, the LED array can generate preferably equable arrangement of colored light to output preferably equable light mixture. In any 2×2 matrix, there are two green, one red, and one blue LEDs.Type: ApplicationFiled: February 28, 2006Publication date: May 10, 2007Applicant: CHI LIN TECHNOLOGY CO., LTD.Inventors: Feng-Chien Chung, Shen-Yin Tsai, I-Chang Lee
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Publication number: 20070030572Abstract: A lens used for a light-emitting diode (LED) includes a body having an axis and a retaining part, wherein the body of the lens is symmetrical about the axis. The lens is mounted onto an LED and further includes a first lens part and a second lens part. When entering into the first lens part, light rays will be totally reflected through the first lens part and the light rays emitted from the first lens part will approximately parallel to the axis. When the light rays emitted from the first lens part enter into the second lens part, they will be totally reflected, and the light rays emitted from the second lens part will be approximately perpendicular to the axis. Thus, the lens has a structure that may control the emitting direction of light emitted from an LED.Type: ApplicationFiled: November 16, 2005Publication date: February 8, 2007Inventors: I-Chang Lee, Shen-Yin Tsai
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Publication number: 20060285037Abstract: The present invention relates to an apparatus for mixing light beams, which has at least one cholesteric liquid crystal (CLC) layer disposed between a reflective plate and an upper plate so as to form two mixing areas. Because the cholesteric liquid crystal (CLC) layer has a property of reflecting narrow band-circular polarized light, the light beams emitted from a plurality of light source are mixed in the two mixing areas. As a result, the height of the mixing area is reduced, and the color-mixing performance is raised.Type: ApplicationFiled: June 21, 2005Publication date: December 21, 2006Inventors: Shen-Yin Tsai, Chen-Ze Hu, Chin-Lung Kuo, I-Chang Lee
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Publication number: 20060237737Abstract: The present invention relates to a light emitting diode comprising a blue die and a fluorescent material layer. The blue die is used for generating blue light when being activated. The fluorescent material layer is used for generating yellow light when being activated. The light emitting diode further comprises a red die that is used for generating red light when being activated, so as to increase the red color component of the output light of the light emitting diode. The present invention also relates to a backlight module having light emitting diode, which has a well-balanced color when being used for a light source of a liquid crystal display or a liquid crystal display television.Type: ApplicationFiled: June 21, 2006Publication date: October 26, 2006Inventor: I-Chang Lee
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Publication number: 20060012989Abstract: The present invention relates to a light emitting diode comprising a blue die and a fluorescent material layer. The blue die is used for generating blue light when being activated. The fluorescent material layer is used for generating yellow light when being activated. The light emitting diode further comprises a red die that is used for generating red light when being activated, so as to increase the red color component of the output light of the light emitting diode. The present invention also relates to a backlight module having light emitting diode, which has a well-balanced color when being used for a light source of a liquid crystal display or a liquid crystal display television.Type: ApplicationFiled: December 21, 2004Publication date: January 19, 2006Inventor: I-Chang Lee
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Patent number: D578284Type: GrantFiled: October 13, 2006Date of Patent: October 14, 2008Assignee: Payless ShoeSource Worldwide, Inc.Inventors: Robert L. Elliott, Steven C. Waugh, Tsun-Mu Tseng, I-Chang Lee, Guo Cheng Huang
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Patent number: D588348Type: GrantFiled: October 13, 2006Date of Patent: March 17, 2009Assignee: Payless ShoeSource Worldwide, Inc.Inventors: Robert L. Elliott, Steven C. Waugh, Tsun-Mu Tseng, I-Chang Lee, Guo Cheng Huang
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Patent number: D599994Type: GrantFiled: October 13, 2006Date of Patent: September 15, 2009Assignee: Payless ShoeSource Worldwide, Inc.Inventors: Robert L. Elliott, Steven C. Waugh, Tsun-Mu Tseng, I-Chang Lee, Guo Cheng Huang
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Patent number: D618896Type: GrantFiled: October 13, 2006Date of Patent: July 6, 2010Assignee: Payless ShoeSource Worldwide, Inc.Inventors: Robert L. Elliott, Steven C. Waugh, Tsun-Mu Tseng, I-Chang Lee, Guo Cheng Huang