Patents Assigned to United Microelectronics Corporation
  • Patent number: 9362382
    Abstract: A method for forming a semiconductor device, includes steps of: providing a substrate; forming a first seal layer over the substrate; forming a second seal layer atop the first seal layer; forming a patterned photoresist layer on the second seal layer; implanting a dopant into the substrate by using the patterned photoresist layer as a mask; executing a first removing process to remove the patterned photoresist layer, wherein the first seal layer has a higher etch rate than that of the second seal layer in the first removing process; and removing the second seal layer after removing the patterned photoresist layer.
    Type: Grant
    Filed: November 17, 2014
    Date of Patent: June 7, 2016
    Assignee: UNITED MICROELECTRONICS CORPORATION
    Inventors: Yu-Hsiang Hung, Yen-Liang Wu, Ssu-I Fu, Chih-Kai Hsu, Jyh-Shyang Jenq
  • Publication number: 20160148998
    Abstract: A FINFET structure is provided. The FINFET structure includes a substrate, a PMOS element, a NMOS element, a STI structure, and a bump structure. The substrate includes a first area and a second area adjacent to the first area. The PMOS element is disposed in the first area of the substrate, and includes at least one first fin structure. The NMOS element is disposed in the second area of the substrate and includes at least one second fin structure. The STI structure is disposed between the first fin structure and the second fin structure. The bump structure is disposed on the STI structure and has a carbon-containing dielectric material.
    Type: Application
    Filed: November 20, 2014
    Publication date: May 26, 2016
    Applicant: UNITED MICROELECTRONICS CORPORATION
    Inventors: YEN-LIANG WU, CHUNG-FU CHANG, WEN-JIUN SHEN, MAN-LING LU, CHIA-JONG LIU, YI-WEI CHEN
  • Publication number: 20160141386
    Abstract: A method for forming a semiconductor device, includes steps of: providing a substrate; forming a first seal layer over the substrate; forming a second seal layer atop the first seal layer; forming a patterned photoresist layer on the second seal layer; implanting a dopant into the substrate by using the patterned photoresist layer as a mask; executing a first removing process to remove the patterned photoresist layer, wherein the first seal layer has a higher etch rate than that of the second seal layer in the first removing process; and removing the second seal layer after removing the patterned photoresist layer.
    Type: Application
    Filed: November 17, 2014
    Publication date: May 19, 2016
    Applicant: UNITED MICROELECTRONICS CORPORATION
    Inventors: YU-HSIANG HUNG, YEN-LIANG WU, SSU-I FU, CHIH-KAI HSU, JYH-SHYANG JENQ
  • Patent number: 9343493
    Abstract: An image sensor is provided. The image sensor includes a semiconductor substrate having a sensing region and a non-sensing region; a passivation layer formed on the semiconductor substrate; a first planar layer formed on the passivation layer; a color filter layer formed on the first planar layer with respect to the sensing region and a shielding layer formed on the first planar layer with respect to the non-sensing region; a plurality of micro-lens layers formed on the color filter layer and on the shielding layer; and a plurality of cap oxide layers formed on the micro-lens layer.
    Type: Grant
    Filed: February 3, 2015
    Date of Patent: May 17, 2016
    Assignee: UNITED MICROELECTRONICS CORPORATION
    Inventors: Yen-Chuan Chen, Tien-SHang Kuo
  • Publication number: 20160133687
    Abstract: A metal-insulator-metal (MIM) capacitor structure and a method for manufacturing the same. The method includes a step hereinafter. A 5-layered dual-dielectric structure is provided on a substrate. The 5-layered dual-dielectric structure includes a bottom metal layer, a first dielectric layer, an intermediate metal layer, a second dielectric layer and a top metal layer in order. The first dielectric layer and the second dielectric layer have different thicknesses.
    Type: Application
    Filed: November 21, 2014
    Publication date: May 12, 2016
    Applicant: UNITED MICROELECTRONICS CORPORATION
    Inventors: ZHI-BIAO ZHOU, SHAO-HUI WU, CHI-FA KU
  • Patent number: 9330956
    Abstract: A method for manufacturing a semiconductor device is provided and comprises steps as follows. A Si substrate is provided. The Si substrate includes a first region and a second region. A sacrificial oxide layer is formed on the substrate with respect to the first region. A sacrificial nitride layer is conformally formed on the sacrificial oxide layer and on the substrate with respect to the second region. A photoresist layer is coated over the sacrificial nitride layer. A shallow trench isolation (STI) mask is provided. The STI mask has at least one first STI pattern and at least one second STI pattern to be transferred to the Si substrate to form at least one first trench and at least one second trench in the substrate. A STI oxide layer is deposited. A chemical-mechanical polishing (CMP) process is performed until the sacrificial oxide layer is removed.
    Type: Grant
    Filed: January 26, 2015
    Date of Patent: May 3, 2016
    Assignee: UNITED MICROELECTRONICS CORPORATION
    Inventors: Jen-Chieh Lo, Chao-Ming Cheng
  • Patent number: 9324724
    Abstract: The present invention provides a method of fabricating a memory structure, especially forming an oxide on top of a spacer to prevent the spacer from being over-etched, the method comprising the steps of: providing a semiconductor substrate; forming a charge trapping layer, a first conducting layer and a capping layer as a gate stack on the substrate; forming a first gate structure by patterning; a plurality of spacers are patterned and disposed adjacent to the sidewall of said gate stack; depositing a second conducting layer on the substrate to cover the first gate structure and the spacer; selectively etching the second conducting layer to expose the top of the spacer; performing an oxidation process to form an oxide on top of the spacer.
    Type: Grant
    Filed: September 21, 2015
    Date of Patent: April 26, 2016
    Assignee: UNITED MICROELECTRONICS CORPORATION
    Inventors: Weichang Liu, Zhen Chen, Shen-De Wang, Wei Ta, Wang Xiang, Yi-Shan Chiu
  • Patent number: 9318338
    Abstract: A method for fabricating a semiconductor device is provided. The method includes the following steps. Firstly, a substrate having a nitride layer and a platinum (Pt)-containing nickel (Ni)-semiconductor compound layer is provided. Then the nitride layer and the Pt are removed in situ with a chemical solution including a sulfuric acid component and a phosphoric acid component.
    Type: Grant
    Filed: August 19, 2013
    Date of Patent: April 19, 2016
    Assignee: UNITED MICROELECTRONICS CORPORATION
    Inventors: Bor-Shyang Liao, Tsung-Hsun Tsai, Kuo-Chih Lai, Pin-Hong Chen, Chia-Chang Hsu, Shu-Min Huang, Min-Chung Cheng, Chun-Ling Lin
  • Publication number: 20160104612
    Abstract: The method for cleaning a contact hole and forming a contact plug therein is provided. The method includes steps of: providing a silicon substrate; forming a contact hole in the silicon substrate; performing a pre-cleaning process to clean the contact hole; and forming a contact plug in the contact hole. The pre-cleaning process includes steps of: performing an oxide dry etching process; performing a first thermal annealing process with a temperature which is equal to or greater than 300° C.; performing a degassing process with a temperature which is equal to or greater than 300° C.; and performing an Ar-plasma etching process.
    Type: Application
    Filed: October 9, 2014
    Publication date: April 14, 2016
    Applicant: UNITED MICROELECTRONICS CORPORATION
    Inventors: YI-HUI LEE, TSUNG-HUNG CHANG, CHING-WEN HUNG, JIA-RONG WU, CHING-LING LIN, CHIH-SEN HUANG, YI-WEI CHEN, CHIA-CHANG HSU, SHU-MIN HUANG, HSIN-FU HUANG
  • Patent number: 9312121
    Abstract: The method for cleaning a contact hole and forming a contact plug therein is provided. The method includes steps of: providing a silicon substrate; forming a contact hole in the silicon substrate; performing a pre-cleaning process to clean the contact hole; and forming a contact plug in the contact hole. The pre-cleaning process includes steps of: performing an oxide dry etching process; performing a first thermal annealing process with a temperature which is equal to or greater than 300° C.; performing a degassing process with a temperature which is equal to or greater than 300° C.; and performing an Ar-plasma etching process.
    Type: Grant
    Filed: October 9, 2014
    Date of Patent: April 12, 2016
    Assignee: UNITED MICROELECTRONICS CORPORATION
    Inventors: Yi-Hui Lee, Tsung-Hung Chang, Ching-Wen Hung, Jia-Rong Wu, Ching-Ling Lin, Chih-Sen Huang, Yi-Wei Chen, Chia-Chang Hsu, Shu-Min Huang, Hsin-Fu Huang
  • Patent number: 9312352
    Abstract: A method for fabricating a field-effect transistor is provided. The method includes: forming a gate dielectric layer and a barrier layer on a substrate in sequence; forming a first silicon layer on and in contact with the barrier layer; performing a thermal treatment to form a silicide layer between the barrier layer and the first silicon layer; and forming a second silicon layer on and in contact with the first silicon layer.
    Type: Grant
    Filed: October 2, 2015
    Date of Patent: April 12, 2016
    Assignee: UNITED MICROELECTRONICS CORPORATION
    Inventors: Kun-Yuan Lo, Chih-Wei Yang, Cheng-Guo Chen, Rai-Min Huang, Jian-Cun Ke
  • Patent number: 9312357
    Abstract: A semiconductor device and a method for manufacturing the same. The method includes steps hereinafter. A substrate is provided with a first dielectric layer thereon. The first dielectric layer is provided with a trench. Then, a metal layer is formed to fill the trench and to cover the surface of the first dielectric layer. The metal layer is partially removed so that a remaining portion of the metal layer covers the first dielectric layer. A treatment process is performed to transform the remaining portion of the metal layer into a passivation layer on the top portion and a gate metal layer on the bottom portion. A chemical-mechanical polishing process is performed until the first dielectric layer is exposed so that a remaining portion of the passivation layer remains in the trench.
    Type: Grant
    Filed: October 16, 2014
    Date of Patent: April 12, 2016
    Assignee: United Microelectronics Corporation
    Inventors: Shih-Chang Tsai, Tzu-Chin Tseng, Hsiao-Ting Lin, Chang-Yih Chen, Sam Lai
  • Publication number: 20160093737
    Abstract: An etching method adapted to forming grooves in Si-substrate and FinFET transistor manufactured thereof are provided. The etching method includes providing a silicon substrate, at least two gate structures formed on the silicon substrate and at least two gate spacer structures disposed on the silicon substrate; performing a first etching process on the silicon substrate to form a first groove, which has a base and two inclined sidewalls, ascending to respective bottoms of the gate structures, and are interconnected with the base, respectively; and performing a second etching process on the silicon substrate at the base of the first groove, so as to form a second groove in an inverted -symbol shape, wherein the two inclined sidewalls of the first groove are interconnected with the second groove respectively, and the first etching process is substantially different from the second etching process.
    Type: Application
    Filed: November 19, 2014
    Publication date: March 31, 2016
    Applicant: UNITED MICROELECTRONICS CORPORATION
    Inventors: JHEN-CYUAN LI, SHUI-YEN LU, MAN-LING LU, YU-CHENG TUNG, CHUNG-FU CHANG
  • Patent number: 9299839
    Abstract: A P-type field effect transistor includes: a gate area; an insulated area, adjacent to the gate area; a source region and a drain region made by silicon germanium, respectively, adjacent to the second side of the insulated area; a channel area, adjacent to the insulated area and formed between the source region and the drain region; a conductive layer, electrically connected to the source region and the drain region, respectively; and a plurality of capping layers, connected between the conductive layer and the source/drain regions, wherein the silicon layer(s) and the silicon germanium layer(s) are stacked alternately, and of which a silicon layer contacts the source/drain silicon germanium regions, while a silicon germanium layer contacts the conductive layer. The present invention also provides a complementary metal oxide semiconductor transistor including the P-type field effect transistor mentioned above.
    Type: Grant
    Filed: October 3, 2014
    Date of Patent: March 29, 2016
    Assignee: UNITED MICROELECTRONICS CORPORATION
    Inventors: Wen-Yin Weng, Cheng-Tung Huang, Wei-Heng Hsu, Yi-Ting Wu, Yu-Ming Lin, Jen-Yu Wang
  • Publication number: 20160086843
    Abstract: Shallow trench isolation structures in a semiconductor device and a method for manufacturing the same. The method includes steps hereinafter. A substrate is provided with a pad oxide layer and a first patterned photoresist layer thereon. A first trench is formed in the substrate corresponding to the first patterned photoresist layer. A first dielectric layer is deposited in the first trench and on the substrate. A second patterned photoresist layer is provided to form an opening in the first dielectric layer and a second trench in the substrate corresponding to the second patterned photoresist layer. A second dielectric layer is deposited to cover the first trench and the second trench in the substrate and the first dielectric layer on the substrate. The second dielectric layer is removed by chemical-mechanical polishing until the first dielectric layer is exposed. The first dielectric layer on the substrate is selectively removed.
    Type: Application
    Filed: December 2, 2015
    Publication date: March 24, 2016
    Applicant: UNITED MICROELECTRONICS CORPORATION
    Inventors: Ming-Shing Chen, Yu-Ting Wang, Ming-Hui Chang
  • Publication number: 20160086933
    Abstract: The present invention provides electrostatic discharge protectors. One aspect of the present invention provides an electrostatic discharge protector includes a substrate, an electrostatic discharge protection circuit disposed on the substrate, and a pickup ring surrounding the electrostatic discharge protection circuit. The pickup ring has a plurality of low resistance zones where a doping layer, a contact and a metal layer are connected in sequence, and the low resistance zones are distributed within the pickup ring separately and unequally.
    Type: Application
    Filed: September 24, 2014
    Publication date: March 24, 2016
    Applicant: UNITED MICROELECTRONICS CORPORATION
    Inventors: LU-AN CHEN, Mei-Ling Chao, Tien-Hao Tang
  • Patent number: 9287222
    Abstract: An integrated semiconductor device and method for fabricating the same are provided wherein the integrated semiconductor device comprises a substrate a first stress-inducing layer, a second stress-inducing layer and an integrated circuit layer. The first stress-inducing layer covers on the substrate. The second stress-inducing layer partially covers on the first stress-inducing layer. The integrated circuit layer is bonded over the substrate.
    Type: Grant
    Filed: November 11, 2015
    Date of Patent: March 15, 2016
    Assignee: UNITED MICROELECTRONICS CORPORATION
    Inventors: Shih-Wei Li, Yun-Han Chu, Guo-Chih Wei
  • Patent number: 9279923
    Abstract: A method for fabricating a color filter layer, which is applied to an integrated circuit manufacturing process, includes the following steps. Firstly, a substrate is provided, and a groove structure is formed on the substrate. The groove structure includes a plurality of positive photoresist patterns and a plurality of trenches. Then, a first group of color filter patterns is formed in the trenches. The plurality of positive photoresist patterns is removed, so that a portion of a top surface of the substrate is exposed. Then, a second group of color filter patterns is formed on the exposed top surface of the substrate.
    Type: Grant
    Filed: March 26, 2013
    Date of Patent: March 8, 2016
    Assignee: UNITED MICROELECTRONICS CORPORATION
    Inventor: Cheng-Hung Yu
  • Publication number: 20160064563
    Abstract: A P-type field effect transistor includes: a gate area; an insulated area, adjacent to the gate area; a source region and a drain region made by silicon germanium, respectively, adjacent to the second side of the insulated area; a channel area, adjacent to the insulated area and formed between the source region and the drain region; a conductive layer, electrically connected to the source region and the drain region, respectively; and a plurality of capping layers, connected between the conductive layer and the source/drain regions, wherein the silicon layer(s) and the silicon germanium layer(s) are stacked alternately, and of which a silicon layer contacts the source/drain silicon germanium regions, while a silicon germanium layer contacts the conductive layer. The present invention also provides a complementary metal oxide semiconductor transistor including the P-type field effect transistor mentioned above.
    Type: Application
    Filed: October 3, 2014
    Publication date: March 3, 2016
    Applicant: UNITED MICROELECTRONICS CORPORATION
    Inventors: WEN-YIN WENG, CHENG-TUNG HUANG, WEI-HENG HSU, YI-TING WU, YU-MING LIN, JEN-YU WANG
  • Publication number: 20160064241
    Abstract: A method for planarizing a semiconductor device is provided. The method includes steps hereinafter. A substrate is provided with a first dielectric layer covering at least one electrode structure formed thereon. A chemical-mechanical polishing (CMP) process is performed on the first dielectric layer until the at least one electrode structure is exposed. A second dielectric layer is deposited covering the at least one electrode structure and the first dielectric layer. An etching-back process is performed on the second dielectric layer until the at least one electrode structure is exposed.
    Type: Application
    Filed: September 2, 2014
    Publication date: March 3, 2016
    Applicant: UNITED MICROELECTRONICS CORPORATION
    Inventors: YI-CHING WU, HORNG-BOR LU, YUNG-CHIEH KUO