Patents by Inventor Zhiping Yin

Zhiping Yin 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).

  • Publication number: 20090302323
    Abstract: Imager pixels with low-level interconnect sections, methods of assembling imager pixels with low-level interconnect sections, and systems containing imager pixels with low-level interconnect sections. Imager pixels are formed such that specific interconnections between transistors and other components of an imager array are removed from one or more upper level metallization sections and placed on a low-level interconnect section closer to the photodetector, such that one upper metallization section is eliminated.
    Type: Application
    Filed: June 4, 2008
    Publication date: December 10, 2009
    Inventors: Zhiping Yin, Xiangli Li
  • Publication number: 20090294878
    Abstract: The present invention includes semiconductor circuitry. Such circuitry encompasses a metal silicide layer over a substrate and a layer comprising silicon, nitrogen and oxygen in physical contact with the metal silicide layer. The present invention also includes a gate stack which encompasses a polysilicon layer over a substrate, a metal silicide layer over the polysilicon layer, an antireflective material layer over the metal silicide layer, a silicon nitride layer over the antireflective material layer, and a layer of photoresist over the silicon nitride layer, for photolithographically patterning the layer of photoresist to form a patterned masking layer from the layer of photoresist and transferring a pattern from the patterned masking layer to the silicon nitride layer, antireflective material layer, metal silicide layer and polysilicon layer. The patterned silicon nitride layer, antireflective material layer, metal silicide layer and polysilicon layer encompass a gate stack.
    Type: Application
    Filed: August 7, 2009
    Publication date: December 3, 2009
    Inventors: Zhiping Yin, Ravi Iyer, Thomas R. Glass, Richard Holscher, Ardavan Niroomand, Linda K. Somerville, Gurtej S. Sandhu
  • Patent number: 7626238
    Abstract: In one aspect, the invention includes a semiconductor processing method. An antireflective material layer is formed over a substrate. At least a portion of the antireflective material layer is annealed at a temperature of greater than about 400° C. A layer of photoresist is formed over the annealed antireflective material layer. The layer of photoresist is patterned. A portion of the antireflective material layer unmasked by the patterned layer of photoresist is removed. In another aspect, the invention includes the following semiconductor processing. An antireflective material layer is formed over a substrate. The antireflective material layer is annealed at a temperature of greater than about 400° C. A layer of photoresist is formed over the annealed antireflective material layer. Portions of the layer of photoresist are exposed to radiation waves. Some of the radiation waves are absorbed by the antireflective material during the exposing.
    Type: Grant
    Filed: August 31, 2005
    Date of Patent: December 1, 2009
    Assignee: Micron Technology, Inc.
    Inventors: Richard Holscher, Zhiping Yin, Tom Glass
  • Patent number: 7589015
    Abstract: Techniques are disclosed for fabricating a device using a photolithographic process. The method includes providing a first anti-reflective coating over a surface of a substrate. A layer which is transparent to a wavelength of light used during the photolithographic process is provided over the first anti-reflective coating, and a photosensitive material is provided above the transparent layer. The photosensitive material is exposed to a source of radiation including the wavelength of light. Preferably, the first anti-reflective coating extends beneath substantially the entire transparent layer. The complex refractive index of the first anti-reflective coating can be selected to maximize the absorption at the first anti-reflective coating to reduce notching of the photosensitive material.
    Type: Grant
    Filed: January 26, 2007
    Date of Patent: September 15, 2009
    Assignee: Micron Technology, Inc
    Inventors: Gurtej S. Sandhu, Zhiping Yin
  • Patent number: 7576400
    Abstract: The present invention includes semiconductor circuitry. Such circuitry encompasses a metal silicide layer over a substrate and a layer comprising silicon, nitrogen and oxygen in physical contact with the metal silicide layer. The present invention also includes a gate stack which encompasses a polysilicon layer over a substrate, a metal silicide layer over the polysilicon layer, an antireflective material layer over the metal silicide layer, a silicon nitride layer over the antireflective material layer, and a layer of photoresist over the silicon nitride layer, for photolithographically patterning the layer of photoresist to form a patterned masking layer from the layer of photoresist and transferring a pattern from the patterned masking layer to the silicon nitride layer, antireflective material layer, metal silicide layer and polysilicon layer. The patterned silicon nitride layer, antireflective material layer, metal silicide layer and polysilicon layer encompass a gate stack.
    Type: Grant
    Filed: April 26, 2000
    Date of Patent: August 18, 2009
    Assignee: Micron Technology, Inc.
    Inventors: Zhiping Yin, Ravi Iyer, Thomas R. Glass, Richard Holscher, Ardavan Niroomand, Linda K. Somerville, Gurtej S. Sandhu
  • Patent number: 7576441
    Abstract: A hard mask comprising boron-doped amorphous carbon, and a method for forming the hard mask, provides improved resistance to etches of a variety of materials compared with previous amorphous carbon hard mask layers.
    Type: Grant
    Filed: August 29, 2005
    Date of Patent: August 18, 2009
    Assignee: Micron Technology, Inc.
    Inventors: Zhiping Yin, Gurtej S. Sandhu
  • Publication number: 20090203206
    Abstract: Techniques are disclosed for fabricating a device using a photolithographic process. The method includes providing a first anti-reflective coating over a surface of a substrate. A layer which is transparent to a wavelength of light used during the photolithographic process is provided over the first anti-reflective coating, and a photosensitive material is provided above the transparent layer. The photosensitive material is exposed to a source of radiation including the wavelength of light. Preferably, the first anti-reflective coating extends beneath substantially the entire transparent layer. The complex refractive index of the first anti-reflective coating can be selected to maximize the absorption at the first anti-reflective coating to reduce notching of the photosensitive material.
    Type: Application
    Filed: January 26, 2007
    Publication date: August 13, 2009
    Inventors: Gurtej S. Sandhu, Zhiping Yin
  • Patent number: 7541635
    Abstract: In one embodiment, a method includes selectively depositing a collar material between a number of memory containers. The collar material along a side of a first memory container of the number of memory containers is in contact with the collar material along a side of a second memory container. An opening exists between the collar material along a corner of the memory container and the collar material along a corner of a third memory container.
    Type: Grant
    Filed: July 21, 2006
    Date of Patent: June 2, 2009
    Assignee: Micron Technology, Inc.
    Inventors: Kevin Torek, Kevin Shea, Niraj B. Rana, Zhiping Yin
  • Patent number: 7521354
    Abstract: A low k interlevel dielectric layer fabrication method includes providing a substrate having integrated circuitry at least partially formed thereon. An oxide comprising interlevel dielectric layer comprising carbon and having a dielectric constant no greater than 3.5 is formed over the substrate. After forming the carbon comprising dielectric layer, it is exposed to a plasma comprising oxygen effective to reduce the dielectric constant to below what it was prior to said exposing. A low k interlevel dielectric layer fabrication method includes providing a substrate having integrated circuitry at least partially formed thereon. In a chamber, an interlevel dielectric layer comprising carbon and having a dielectric constant no greater than 3.5 is plasma enhanced chemical vapor deposited over the substrate at subatmospheric pressure.
    Type: Grant
    Filed: November 4, 2005
    Date of Patent: April 21, 2009
    Assignee: Micron Technology, Inc.
    Inventors: Weimin Li, Zhiping Yin, William Budge
  • Publication number: 20090090845
    Abstract: Methods and apparatuses using pixels with shared readout circuits are used to increase pixel fill factor and operation efficiency.
    Type: Application
    Filed: October 5, 2007
    Publication date: April 9, 2009
    Inventors: Zhiping Yin, Xiaofeng Fan, Jon Adams, Paul Perez, Xiangli Li
  • Publication number: 20090046189
    Abstract: Methods and apparatuses using four-way-shared readout circuits to increase pixel fill factor.
    Type: Application
    Filed: August 17, 2007
    Publication date: February 19, 2009
    Inventors: Zhiping Yin, Xiaofeng Fan
  • Patent number: 7470606
    Abstract: The invention includes masking methods. In one implementation, a masking material which includes boron doped amorphous carbon is formed over a feature formed on a semiconductor substrate. The masking material includes at least about 0.5 atomic percent boron. The masking material is substantially anisotropically etched effective to form an anisotropically etched sidewall spacer which includes the boron doped amorphous carbon on a sidewall of the feature. The substrate is then processed proximate the spacer while using the boron doped amorphous carbon-including spacer as a mask. After processing the substrate proximate the spacer, the boron doped amorphous carbon-including spacer is etched from the substrate. Other implementations and aspects are contemplated.
    Type: Grant
    Filed: July 31, 2006
    Date of Patent: December 30, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Zhiping Yin, Gurtej S. Sandhu
  • Patent number: 7390738
    Abstract: Techniques are disclosed for fabricating a device using a photolithographic process. The method includes providing a first anti-reflective coating over a surface of a substrate. A layer which is transparent to a wavelength of light used during the photolithographic process is provided over the first anti-reflective coating, and a photosensitive material is provided above the transparent layer. The photosensitive material is exposed to a source of radiation including the wavelength of light. Preferably, the first anti-reflective coating extends beneath substantially the entire transparent layer. The complex refractive index of the first anti-reflective coating can be selected to maximize the absorption at the first anti-reflective coating to reduce nothing of the photosensitive material.
    Type: Grant
    Filed: May 1, 2006
    Date of Patent: June 24, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Gurtej S. Sandhu, Zhiping Yin
  • Patent number: 7354631
    Abstract: This invention includes chemical vapor deposition apparatus, methods of chemical vapor depositing an amorphous carbon comprising layer on a substrate, and methods of chemical vapor depositing at least one of Si3N4 and SixOyNz on a substrate. In certain implementations, a gas output manifold having at least one gas output to a deposition chamber and at least three gas inputs is utilized. In certain implementations, a remote plasma generator is utilized. In certain implementations, at least one cleaning gas input line feeds the remote plasma generator. In certain implementations, the at least one cleaning gas input line includes an amorphous carbon cleaning gas input and an Si3N4 or SixOyNz cleaning gas input.
    Type: Grant
    Filed: November 6, 2003
    Date of Patent: April 8, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Jeff N. Fuss, Kevin T. Hamer, Zhiping Yin
  • Patent number: 7341957
    Abstract: A masking structure having multiple layers is formed. The masking structure includes an amorphous carbon layer and a cap layer formed over the amorphous carbon layer. The amorphous carbon layer includes transparent amorphous carbon. The cap layer includes non-oxide materials. The masking structure may be used as a mask in an etching process during fabrication of semiconductor devices.
    Type: Grant
    Filed: August 30, 2005
    Date of Patent: March 11, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Gurtej S. Sandhu, Zhiping Yin, Weimin Li
  • Publication number: 20080008942
    Abstract: A photo acid generator (PAG) or an acid is used to reduce resist scumming and footing. Diffusion of acid from photoresist into neighbors causes a decreased acid level, and thus causes resist scumming. An increased acid layer beneath the resist prevents acid diffusion. In one embodiment, the increased acid layer is a layer of spun-on acid or PAG dissolved in aqueous solution. In another embodiment, the increased acid layer is a hard mask material with a PAG or an acid mixed into the material. The high acid content inhibits the diffusion of acid from the photoresist into neighboring layers, and thus substantially reduces photoresist scumming and footing.
    Type: Application
    Filed: September 17, 2007
    Publication date: January 10, 2008
    Inventors: Zhiping Yin, Jingyi Bai
  • Patent number: 7315074
    Abstract: The present invention relates to a laser fuse. The laser fuse comprises an element comprising a heat conductive material. The fuse also includes an absorption element comprising a material with an adjustable capacity for heat or light absorption that overlays the heat conductive element. The fuse also includes an outer insulating element that overlays and encloses the heat conductive element and the absorption element.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: January 1, 2008
    Assignee: Micron Technology, Inc.
    Inventors: Mark Fischer, Zhiping Yin, Thomas R. Glass, Kunal R. Parekh, Gurtej Singh Sandhu
  • Publication number: 20070278695
    Abstract: The present invention relates to metallic interconnect having an interlayer dielectric thereover, the metallic interconnect having an upper surface substantially free from oxidation. The metallic interconnect may have an exposed upper surface thereon that is passivated by a nitrogen containing compound.
    Type: Application
    Filed: August 20, 2007
    Publication date: December 6, 2007
    Applicant: MICRON TECHNOLOGY, INC.
    Inventors: Zhiping Yin, Mark Jost
  • Patent number: 7298024
    Abstract: A transparent amorphous carbon layer is formed. The transparent amorphous carbon layer has a low absorption coefficient such that the amorphous carbon is transparent in visible light. The transparent amorphous carbon layer may be used in semiconductor devices for different purposes. The transparent amorphous carbon layer may be included in a final structure in semiconductor devices. The transparent amorphous carbon layer may also be used as a mask in an etching process during fabrication of semiconductor devices.
    Type: Grant
    Filed: July 19, 2006
    Date of Patent: November 20, 2007
    Assignee: Micron Technology, Inc.
    Inventors: Zhiping Yin, David J. Williams, Weimin Li
  • Publication number: 20070238207
    Abstract: In one aspect, the invention includes a semiconductor processing method. An antireflective material layer is formed over a substrate. At least a portion of the antireflective material layer is annealed at a temperature of greater than about 400° C. A layer of photoresist is formed over the annealed antireflective material layer. The layer of photoresist is patterned. A portion of the antireflective material layer unmasked by the patterned layer of photoresist is removed. In another aspect, the invention includes the following semiconductor processing. An antireflective material layer is formed over a substrate. The antireflective material layer is annealed at a temperature of greater than about 400° C. A layer of photoresist is formed over the annealed antireflective material layer. Portions of the layer of photoresist are exposed to radiation waves. Some of the radiation waves are absorbed by the antireflective material during the exposing.
    Type: Application
    Filed: September 6, 2005
    Publication date: October 11, 2007
    Inventors: Richard Holscher, Zhiping Yin, Tom Glass