Patents Examined by John S Ruggles
-
Patent number: 8658003Abstract: A sputtering system includes a first sputtering assembly configured to sputter material onto a first disk and a second sputtering assembly configured to sputter material onto a second disk, the second sputtering assembly positioned proximate the first sputtering assembly. The first sputtering assembly includes a first magnetic ring, and the second sputtering assembly includes a second magnetic ring. The first magnetic ring includes a first region of lower relative magnetic strength positioned near the second magnetic ring, and the second magnetic ring includes a second region of lower relative magnetic strength positioned near the first magnetic ring.Type: GrantFiled: February 29, 2012Date of Patent: February 25, 2014Assignee: WD Media, LLCInventor: Allen Bourez
-
Patent number: 8637212Abstract: A first reticle set designed for manufacturing dies with a limited number of cores is modified into a second reticle set suitable for manufacturing at least some dies with at least twice as many cores. The first reticle set defines scribe lines to separate the originally defined dies. At least one scribe line is removed from pairs of adjacent but originally distinctly defined dies. Inter-core communication wires are defined to connect the adjacent cores, which are configured to enable the adjacent cores to communicate during operation without connecting to any physical input/output landing pads of the resulting more numerously cored die, which will not carry signals through the inter-core communication wires off the P-core die. The inter-core communication wires may be used for power management coordination purposes or to bypass the external processor bus.Type: GrantFiled: November 17, 2011Date of Patent: January 28, 2014Assignee: VIA Technologies, Inc.Inventor: Darius D. Gaskins
-
Patent number: 8632930Abstract: A method of generating complementary masks for use in a dark field double dipole imaging process. The method includes the steps of identifying a target pattern having a plurality of features, including horizontal and vertical features; generating a horizontal mask based on the target pattern, where the horizontal mask includes low contrast vertical features. The generation of the horizontal mask includes the steps of optimizing the bias of the low contrast vertical features contained in the horizontal mask; and applying assist features to the horizontal mask. The method further includes generating a vertical mask based on the target pattern, where the vertical mask contains low contrast horizontal features. The generation of the vertical mask includes the steps of optimizing the bias of low contrast horizontal features contained in the vertical mask; and applying assist features to the vertical mask.Type: GrantFiled: June 7, 2011Date of Patent: January 21, 2014Assignee: ASML Masktools B.V.Inventors: Duan-Fu Stephen Hsu, Sangbong Park, Douglas Van Den Broeke, Jang Fung Chen
-
Patent number: 8614032Abstract: In a laser reflective mask and a fabricating method thereof, reflective layers with different reflectances are sequentially and repeatedly laminated on top of a base substrate which has a reflective layer filling groove having a predetermined depth in a reflection region for a laser beam and then the remaining reflective layer laminated on the other region except for the portion filled in the reflective layer filling groove are removed through a chemical mechanical polishing (CMP) process, or a lift-off process using irradiation with the laser beam or an etchant, so that a reflective layer pattern configured to be filled in the reflective layer filling groove may be formed, thereby capable of not only facilitating a fabricating process of the laser reflective mask but also forming a more precise reflective layer pattern.Type: GrantFiled: July 21, 2010Date of Patent: December 24, 2013Assignee: WI-A CorporationInventors: Hyeong Ryeol Yoon, Nae Hwang Park, Su Chan Kim, Chan Koo Lee, Yong Mun Kim
-
Patent number: 8614036Abstract: In a laser reflective mask and a fabricating method thereof, reflective layers with different reflectances are sequentially and repeatedly laminated on top of a base substrate which has a reflective layer filling groove having a predetermined depth in a reflection region for a laser beam and then the remaining reflective layer laminated on the other region except for the portion filled in the reflective layer filling groove are removed through a chemical mechanical polishing (CMP) process, or a lift-off process using irradiation with the laser beam or an etchant, so that a reflective layer pattern configured to be filled in the reflective layer filling groove may be formed, thereby capable of not only facilitating a fabricating process of the laser reflective mask but also forming a more precise reflective layer pattern.Type: GrantFiled: April 12, 2013Date of Patent: December 24, 2013Assignee: WI-A CorporationInventors: Hyeong Ryeol Yoon, Nae Hwang Park, Su Chan Kim, Chan Koo Lee, Yong Mun Kim
-
Patent number: 8592102Abstract: The present disclosure provides for many different embodiments. An exemplary method can include providing a blank mask and a design layout to be patterned on the blank mask, the design layout including a critical area; inspecting the blank mask for defects and generating a defect distribution map associated with the blank mask; mapping the defect distribution map to the design layout; performing a mask making process; and performing a mask defect repair process based on the mapping.Type: GrantFiled: December 31, 2009Date of Patent: November 26, 2013Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Chin-Hsiang Lin, Heng-Jen Lee, I-Hsiung Huang, Chih-Chiang Tu, Chun-Jen Chen, Rick Lai
-
Patent number: 8591749Abstract: A phase-shifting photomask with a self aligned undercut rim-shifting element and methods for its manufacture are provided. One embodiment of the invention provides a method of manufacturing a phase-shifting photomask having a self aligned rim-shifting element, the method comprising: applying a patterning film to a first portion of a transparent substrate; etching the substrate to a depth to remove a second portion of the substrate not beneath the patterning film; etching the first portion of the substrate to undercut an area beneath the patterning film; and removing the patterning film, wherein the etched substrate forms a self-aligned undercut rim-shifting element.Type: GrantFiled: November 29, 2012Date of Patent: November 26, 2013Assignee: International Business Machines CorporationInventors: Brent A. Anderson, Jed H. Rankin
-
Patent number: 8563198Abstract: Disclosed is a photomask having a wavelength-reducing material that may be used during photolithographic processing. In one example, the photomask includes a transparent substrate, an absorption layer having at least one opening, and a layer of wavelength-reducing material (WRM) placed into the opening. The thickness of the WRM may range from approximately a thickness of the absorption layer to approximately ten times the wavelength of light used during the photolithographic processing. In another example, the photomask includes at least one antireflection coating (ARC) layer.Type: GrantFiled: June 14, 2011Date of Patent: October 22, 2013Assignee: Taiwan Semiconductor Manufacturing Company, Ltd.Inventors: Burn Jeng Lin, Jeng Horng Chen, Chun-Kuang Chen, Tsai-Sheng Gau, Ru-Gun Liu, Jen-Chieh Shih
-
Patent number: 8557088Abstract: A method of physical vapor deposition includes applying a first radio frequency signal having a first phase to a cathode in a physical vapor deposition apparatus, wherein the cathode includes a sputtering target, applying a second radio frequency signal having a second phase to a chuck in the physical vapor deposition apparatus, wherein the chuck supports a substrate, and wherein a difference between the first and second phases creates a positive self bias direct current voltage on the substrate, and depositing a material from the sputtering target onto the substrate.Type: GrantFiled: February 19, 2009Date of Patent: October 15, 2013Assignee: FUJIFILM CorporationInventors: Youming Li, Jeffrey Birkmeyer, Takamichi Fujii, Takayuki Naono, Yoshikazu Hishinuma
-
Patent number: 8557092Abstract: A backing plate for use in a sputtering deposition apparatus being capable of stably holding Ga, and a sputtering deposition apparatus which is equipped with the backing plate are provided. Such a backing plate for use in a sputtering deposition apparatus is a backing plate for holding a target material which contains Ga, and at least a contact surface of which coming into contact with the target material is constituted from an easily wettable material having a contact angle to Ga in a liquid state of not more than 90°.Type: GrantFiled: October 19, 2007Date of Patent: October 15, 2013Assignee: Toyoda Gosei Co., Ltd.Inventors: Hisayuki Miki, Kenzo Hanawa, Yasumasa Sasaki
-
Patent number: 8551346Abstract: A photomask-forming glass substrate having a square major surface is provided wherein two strip regions are defined on the major surface near a pair of opposed sides such that each region spans between 2 mm and 10 mm inward of the side and excludes end portions extending 2 mm inward from the opposed ends of the side, a least squares plane is computed for each of the two strip regions, the angle included between normal lines to the least squares planes of two strip regions is within 10 seconds, and the height difference between two strip regions is up to 0.5 ?m.Type: GrantFiled: December 10, 2010Date of Patent: October 8, 2013Assignee: Shin-Etsu Chemcial Co., Ltd.Inventors: Daijitsu Harada, Mamoru Morikawa, Masaki Takeuchi, Yukio Shibano
-
Patent number: 8540851Abstract: A method of physical vapor deposition includes applying a radio frequency signal to a cathode in a physical vapor deposition apparatus, wherein the cathode includes a sputtering target, electrically connecting a chuck in the physical vapor deposition apparatus to an impedance matching network, wherein the chuck supports a substrate, and wherein the impedance matching network includes at least one capacitor, and depositing material from the sputtering target onto the substrate.Type: GrantFiled: February 19, 2009Date of Patent: September 24, 2013Assignee: FUJIFILM CorporationInventors: Youming Li, Jeffrey Birkmeyer, Takamichi Fujii, Takayuki Naono, Yoshikazu Hishinuma
-
Patent number: 8535854Abstract: According to one embodiment, a reflective exposure mask comprises a first layer formed on a substrate and including a first light absorbing part which absorbs exposure light and a light reflecting part which reflects the exposure light, and a second layer formed on the light reflecting part and including a second light absorbing part which absorbs the exposure light.Type: GrantFiled: December 20, 2010Date of Patent: September 17, 2013Assignee: Kabushiki Kaisha ToshibaInventor: Takashi Kamo
-
Patent number: 8524423Abstract: A method of forming assist feature patterns includes providing an original layout pattern having at least a first region defined therein, the first region having a first light transmission rate larger than 0%; performing a search step to the original layout pattern to define at least a second region having a second light transmission rate equal to 0% in the original layout pattern; forming a plurality of assist features in the second region to increase the second light transmission rate to larger than 0%; and outputting the original layout pattern and the assist features to a reticle blank.Type: GrantFiled: July 11, 2011Date of Patent: September 3, 2013Assignee: United Microelectronics Corp.Inventors: Yi-Chih Chiang, Yuan-Chi Pai, Sho-Shen Lee, Yi-Ting Chen, Tuan-Yen Yu
-
Patent number: 8518609Abstract: A photomask blank has a light-shielding film composed of at least two layers on a transparent substrate. The light-shielding film includes a light-shielding layer made of a material mainly containing tantalum nitride and containing less than 62 at % nitrogen. The material is capable of being dry-etched with a chlorine-based gas containing no oxygen. The light-shielding film further includes a front-surface antireflection layer formed on the light-shielding layer and made of a material not capable of being dry-etched with a chlorine-based gas, but capable of being dry-etched with a fluorine-based gas.Type: GrantFiled: May 9, 2012Date of Patent: August 27, 2013Assignee: Hoya CorporationInventor: Osamu Nozawa
-
Patent number: 8518610Abstract: Provided is a method for fabricating a photomask. The method includes the following processes. Light blocking patterns are formed on a mask substrate, and surface properties of the mask substrate on which the light blocking patterns are formed are changed into hydrophobicity. When the surface properties of the mask substrate are changed into the hydrophobicity, the mask substrate is treated using plasma gas. The plasma gas may be a gas mixture of trifluoromethane (CHF3), tetrafluoromethane (CF4), and hydrogen (H2).Type: GrantFiled: December 12, 2007Date of Patent: August 27, 2013Assignee: Hynix Semiconductor Inc.Inventor: Jun Sik Lee
-
Patent number: 8512916Abstract: A photomask blank for producing a photomask to which an ArF excimer laser light is applied. The blank includes a light transmissive substrate on which a thin film having a multilayer structure is provided. The thin film has a light-shielding film in which a back-surface antireflection layer, a light-shielding layer and a front-surface antireflection layer are laminated in this order. The light-shielding layer comprises chromium and nitrogen, and the chromium content is more than 50 atomic %. The front-surface antireflection layer and the back-surface antireflection layer each has an amorphous structure made of a material comprising chromium, nitrogen, oxygen and carbon. The chromium content ratio of the front-surface antireflection layer and the back-surface antireflection layer is 40 atomic % or less. A first sum of nitrogen content and oxygen content of the back-surface antireflection layer is less than a second sum of nitrogen content and oxygen content of the front-surface antireflection layer.Type: GrantFiled: March 31, 2009Date of Patent: August 20, 2013Assignee: Hoya CorporationInventors: Hiroyuki Iwashita, Hiroaki Shishido, Atsushi Kominato, Masahiro Hashimoto, Morio Hosoya
-
Patent number: 8507155Abstract: A photomask blank for a photomask used with an ArF excimer laser. The photo mask has a light transmissive substrate with a surface on which a light-shielding film is formed. The light-shielding film has a laminated structure comprising a back-surface antireflection layer, a light-shielding layer and a front-surface antireflection layer. The thickness of the entire light-shielding film is 70 nm or less. The back-surface antireflection layer comprises a film containing a metal and having first etching rate. The front-surface antireflection layer comprises a film containing a metal and having a third etching rate. The light-shielding layer comprises a film containing the same metal as that contained in the back-surface antireflection layer or the front-surface antireflection layer, with a second etching rate that is lower than the first and third etching rates. The thickness of the light-shielding layer is 45% or less of the thickness of the entire light-shielding film.Type: GrantFiled: March 31, 2009Date of Patent: August 13, 2013Assignee: Hoya CorporationInventors: Hiroyuki Iwashita, Hiroaki Shishido, Atsushi Kominato, Masahiro Hashimoto
-
Patent number: 8465906Abstract: A photolithography mask including a plurality of mask features. Adjacent mask features are separated by a gap and are offset from each other such that individual mask features have one-side dense portions and two-side dense portions. Also a photolithography method that includes a step of providing a substantially opaque mask having N stepped rows of offset, substantially transparent, rectangular mask features, where N is an integer and N?2. The method also includes illuminating a photoresist layer located over an underlying material with dipole illumination through the substantially transparent, rectangular mask features in the substantially opaque mask to form 2N rows of exposed regions in the photoresist layer. The exposed regions have a substantially elliptical or substantially circular shape when viewed from above the photoresist layer.Type: GrantFiled: April 6, 2011Date of Patent: June 18, 2013Assignee: SanDisk Technologies Inc.Inventors: Chun-Ming Wang, Chenche Huang, Masaaki Higashitani
-
Patent number: 8455180Abstract: A method of forming an IC including MOS transistors includes using a gate mask to form a first active gate feature having a line width W1 over an active area and a neighboring dummy feature having a line width 0.8W1 to 1.3W1. The neighboring dummy feature has a first side adjacent to the first active gate feature, and a nearest gate level feature on a second side opposite the first side. The neighboring dummy feature defines a gate pitch based on a distance to the first active gate feature or the neighboring dummy feature maintains a gate pitch in a gate array including the first active gate feature. The spacing between the neighboring dummy feature and the nearest gate level feature (i) maintains the gate pitch or (ii) provides a SRAF enabling distance that is ?2 times the gate pitch and the gate mask includes a SRAF over the SRAF distance.Type: GrantFiled: October 29, 2010Date of Patent: June 4, 2013Assignee: Texas Instruments IncorporatedInventors: James Walter Blatchford, Yong Seok Choi, Thomas J. Aton