Patents by Inventor Wei-Hung Lo

Wei-Hung Lo 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: 20240371816
    Abstract: A bonded assembly may be formed by: disposing a packaging substrate having substrate-side bonding structures over a transparent plate; heating the packaging substrate using radiative heating in which a radiative heating source provides radiation to a bottom surface of the packaging substrate through the transparent plate; attaching a semiconductor die having die-side bonding structures to a bottom of a thermocompressive bonding head; bringing the semiconductor die and the packaging substrate to indirect contact with each other with an array of solder material portions therebetween; and bonding the semiconductor die to the packaging substrate by reflowing and solidifying the solder material portions.
    Type: Application
    Filed: May 5, 2023
    Publication date: November 7, 2024
    Inventors: Ming-Hua Lo, Wei-Hung Lin, Chung-Chih Chen, Hsin-Hsien Wu, Chyi Shyuan Chern
  • Publication number: 20240355986
    Abstract: A micro light-emitting diode package structure and a forming method thereof are provided. The micro light-emitting diode package structure includes micro light-emitting diode dies, a light-transmitting layer, a first insulating layer, redistribution layers, and conductive elements. The micro light-emitting diode dies are disposed side by side and each includes an electrode surface, a light-emitting surface, and side surfaces. The electrode surface and the light-emitting surface are opposite to each other, and the side surfaces are between them. The light-transmitting layer covers the light-emitting surface and the side surfaces. The first insulating layer is under the micro light-emitting diode dies and in direct contact with the electrode surface. The redistribution layers are disposed under the first insulating layer and pass through the first insulating layer to electrically connect the electrode surface.
    Type: Application
    Filed: April 11, 2024
    Publication date: October 24, 2024
    Inventors: Shiou-Yi KUO, Guo-Yi SHIU, Chin-Hung LO, Chih-Hao LIN, Cheng-Hsien LI, Wei-Yuan MA
  • Publication number: 20240329083
    Abstract: A position-adjustable probing device comprises a stationary probe comprising a first coaxial structure having a first needle core, a first dielectric layer, and a first exterior conductive layer, and a first and a second movable probes. The first movable probe arranged at a first side of the stationary probe comprises a ground needle core, and a first extending structure comprising a first planar structure electrically contacted with the stationary probe through a first movement, a first top surface and a first bottom surface. The second movable probe arranged at a second side of the stationary needle comprises a second coaxial structure comprising a second needle core, a second dielectric layer, and a second exterior conductive layer, and a second extending structure comprising a second planar structure electrically contacted with the stationary probe through a second movement, a second top surface, and a second bottom surface.
    Type: Application
    Filed: March 1, 2024
    Publication date: October 3, 2024
    Inventors: CHIA-NAN CHOU, Chung-Yen Huang, Wen-Chin Yang, Wen-Hung LO, Wei-Lwen Yeh, Chih-Hao Ho
  • Publication number: 20150010716
    Abstract: A sheetless backlight module and a light guide plate thereof are provided. The light guide plate includes a body and a plurality of light scattering units. The body has a bottom and a plurality of microstructures formed on the bottom and recessed in the body from the bottom. The pluralities of light scattering units are disposed in a plurality of spaces formed due to the plurality of microstructures recessed in the body. A manufacturing method of the light guide plate mentioned above includes forming the plurality of microstructures on the bottom of the body; preparing a fluid solution containing at least a diffusive reflective material; distributing the fluid solution on the bottom; driving the fluid solution to flow into the microstructures; removing the part of the fluid solution outside the microstructures; and solidifying the fluid solution to form the plurality of light scattering units.
    Type: Application
    Filed: September 26, 2014
    Publication date: January 8, 2015
    Inventors: Yu-Ping Wu, Fu-Cheng Fan, Wei-Hsiang Tsai, Wei-Hung Lo
  • Patent number: 8870432
    Abstract: A sheetless backlight module and a light guide plate thereof are provided. The light guide plate includes a body and a plurality of light scattering units. The body has a bottom and a plurality of microstructures formed on the bottom and recessed in the body from the bottom. The pluralities of light scattering units are disposed in a plurality of spaces formed due to the plurality of microstructures recessed in the body. A manufacturing method of the light guide plate mentioned above includes forming the plurality of microstructures on the bottom of the body; preparing a fluid solution containing at least a diffusive reflective material; distributing the fluid solution on the bottom; driving the fluid solution to flow into the microstructures; removing the part of the fluid solution outside the microstructures; and solidifying the fluid solution to form the plurality of light scattering units.
    Type: Grant
    Filed: May 18, 2012
    Date of Patent: October 28, 2014
    Assignee: Au Optronics Corporation
    Inventors: Yu-Ping Wu, Fu-Cheng Fan, Wei-Hsiang Tsai, Wei-Hung Lo
  • Publication number: 20130094243
    Abstract: A sheetless backlight module and a light guide plate thereof are provided. The light guide plate includes a body and a plurality of light scattering units. The body has a bottom and a plurality of microstructures formed on the bottom and recessed in the body from the bottom. The pluralities of light scattering units are disposed in a plurality of spaces formed due to the plurality of microstructures recessed in the body. A manufacturing method of the light guide plate mentioned above includes forming the plurality of microstructures on the bottom of the body; preparing a fluid solution containing at least a diffusive reflective material; distributing the fluid solution on the bottom; driving the fluid solution to flow into the microstructures; removing the part of the fluid solution outside the microstructures; and solidifying the fluid solution to form the plurality of light scattering units.
    Type: Application
    Filed: May 18, 2012
    Publication date: April 18, 2013
    Applicant: AU OPTRONICS CORPORATION
    Inventors: Yu-Ping Wu, Fu-Cheng Fan, Wei-Hsiang Tsai, Wei-Hung Lo
  • Patent number: 8343379
    Abstract: The invention discloses a red phosphor powder which is based on strontium (Sr) aluminate and using europium (Eu) as exciting agent, and is characterized by that its chemical equivalence formula is (SrO)4(?Me+2O)1Al2O3: Eu, wherein Me+2=Mg and/or Ca and/or Ba. The present invention also discloses a manufacturing process for the red phosphor powder and a warm white light-emitting diode employing the phosphor powder. Moreover, the present invention also discloses a multi-layer polyethylene thin film using the red phosphor powder.
    Type: Grant
    Filed: June 3, 2009
    Date of Patent: January 1, 2013
    Assignees: Wei-Hung Lo, Chien-Yi Chen
    Inventors: Soshchin Naum, Wei-Hung Lo, Chi-Ruei Tsai
  • Patent number: 8253321
    Abstract: The invention relates to a halide phosphor powder for warm-white light emitting diode, which is a kind of low-color-temperature phosphor powder of halide nitride based on garnet of rare earth oxides, uses cerium as activating agent and is characterized in that chloride (Cl?1) and nitrogen ion (N?3) are added to the composition of the phosphor powder and its stoichiometric relationship of the composition is (?Ln+3)3Al2[(Al(O1-2pClpNp)4]3, wherein ?Ln is ?Ln=Y and/or Gd and/or Tb and/or Lu and/or Dy and/or Pr and/or Ce. In addition, the invention also discloses a use of a warm-white light emitting diode of the said phosphor powder with a weight ratio of 8 to 75%. The light emitting diode has a warm-red color temperature T?3000 K when it has a power of 1 watt.
    Type: Grant
    Filed: August 19, 2009
    Date of Patent: August 28, 2012
    Inventors: Soshchin Naum, Wei-Hung Lo, Chi-Ruei Tsai
  • Patent number: 8153024
    Abstract: The present invention discloses an orange phosphor powder having a rare-earth aluminate have garnet structure, which is characterized by that its chemical composition is added with compounds of the IV and V groups elements and the stoichiometry formula of the orange phosphor powder is (?Ln)3-xMeIVxAl5-ySiyO12-(x+y)N(x+y). Furthermore, the present invention also discloses a warm-white Light-emitting diode employing the orange phosphor powder.
    Type: Grant
    Filed: June 1, 2009
    Date of Patent: April 10, 2012
    Inventors: Soshchin Naum, Wei-Hung Lo, Chi-Ruei Tsai
  • Patent number: 8124871
    Abstract: The present invention discloses a solar cell which can enhance the absorption of the short-wavelength range radiation ?<400 nm of the sun and re-radiate in the wavelength range ?=500˜780 nm to enhance the solar cell's capability in absorbing more long-wavelength radiation and form separate electron-hole pairs so as to increase the output power of the solar cell assembly. Furthermore, the present invention also provides a transparent light conversion film for solar cells.
    Type: Grant
    Filed: November 10, 2008
    Date of Patent: February 28, 2012
    Inventors: Soshchin Naum, Wei-Hung Lo, Chi-Ruei Tsai
  • Patent number: 8110123
    Abstract: A high-brightness yellow-orange yellow phosphor for use in warm white LED (light emitting diode), the high-brightness yellow-orange yellow phosphor comprises a substrate based on a rare-earth garnet and cerium for activating said substrate. The high-brightness yellow-orange yellow phosphor has the substances of Li+1, Mg+2 and N?3 contained therein so that the overall stoichiometric equation of the substrate is: ?(Ln)3Al5?xLi(x+y)Mg(x+y)O12?3yN3y and, the high-brightness yellow-orange yellow phosphor radiates in a visible orange yellow band at ?=538˜569 nm when activated by a shortwave light from an InGaN semiconductor heterostructure.
    Type: Grant
    Filed: October 20, 2008
    Date of Patent: February 7, 2012
    Inventors: Soshchin Naum, Wei-Hung Lo, Chi-Ruei Tsai
  • Patent number: 8088303
    Abstract: The present invention discloses a warm-white-light emitting diode has the substrate of indium gallium nitride (InGaN) heterojunction containing a large amount of quantum wells and having a light conversion polymer layer, characterized by that the light conversion polymer layer is uniform in concentration, the light-emitting surface and edges of the indium gallium nitride heterojunction are covered with a thermosetting polymer, and the light conversion polymer layer contains some fluorescent powders, which are formed as at least two particle layers in the light conversion polymer layer to ensure the light transmitted reaching 20% of the first-order blue light and 70˜80% of the second-order orange-yellow light from the indium gallium nitride heterojunction. The present invention also discloses a fluorescent powder.
    Type: Grant
    Filed: May 11, 2009
    Date of Patent: January 3, 2012
    Inventors: Soshchin Naum, Wei-Hung Lo, Chi-Ruei Tsai
  • Patent number: 8057703
    Abstract: A blue-green-red three-band phosphor for multilayer agricultural plastic film for converting near ultraviolet light in photosynthetic active radiation is disclosed. The substrate of the phosphor is prepared from the group IIA element SiO44?, having a total stoichiometric equation (?Me+2O)2?(SiO2)?, in which ?=1, 2, 3, ?Me+2=Ba+2 and/or Sr+2 and/or Ca+2 and/or Mg+2, having an orthorhombic crystal architecture, and generating a three-band spectrum when activated by d-f element selected from the group of Eu+2, Mn+2 and Sm+2. The maximum wavelength of the three-band spectrum is ?1=440˜460 nm, ?2=515˜535 nm and ?3=626˜640 nm. The maximum value and halfwave width of every spectrum are determined subject to the concentration of the activator and the phosphor synthesis technology. The three-band phosphor is prepared through a solid synthesis method in the form of high dispersed ultrafine powder having the average grain size of d?0.8 ?m.
    Type: Grant
    Filed: September 30, 2008
    Date of Patent: November 15, 2011
    Inventors: Soshchin Naum, Wei-Hung Lo, Chi-Ruei Tsai
  • Patent number: 8044410
    Abstract: The present invention discloses a white light-emitting diode based on In—Ga—N nitride heterojunction is characterized by that the light-emitting diode has primary blue light emission of a specific wavelength and a light conversion layer so as to generate white light. Further, the present invention also discloses a light conversion layer and its fluorine oxygen garnet phosphor powder.
    Type: Grant
    Filed: July 6, 2009
    Date of Patent: October 25, 2011
    Inventors: Soshchin Naum, Wei-Hung Lo, Chi-Ruei Tsai
  • Patent number: 8034257
    Abstract: An inorganic powder uses a UV solid light source applied for the UV LEDs, in which an inorganic powder is based on the inorganic powder of n-silicate group II elements, and its ingredients have valence 2 ions, such as Eu+2, Sm+2, Yb+2 and Dy+2, valence 3 ions Ce+3, Tb+3 and/or Eu+3. The chemical formula of the components is Me+21-xLn+32-ySi2O8:TR+2x:TR+3y, and x=0.0-0.2, y=0.0-0.1. A main structure thereof is a hexagonal crystal structure. When the indium gallium nitride and gallium nitride based allomorphous semiconductor short wave UV light is used under conditions of excitement, the multiple band white light can be obtained.
    Type: Grant
    Filed: March 17, 2008
    Date of Patent: October 11, 2011
    Inventors: Soshchin Naum, Wei-Hung Lo, Chi-Ruei Tsai
  • Patent number: 8029699
    Abstract: A phosphor providing orange-yellow radiation is prepared from a cerium activated rare-earth garnet substrate that contains Li (lithium), Si (silicon), N (nitrogen) and F (fluorine) atoms, obtaining the overall stoichiometric equation of (?Ln)3Al5-x-yLiy/3Mgx/2Si(x/2+2y/3)Fq/2O12-qNq/2. When the activating wavelength is 440˜475 nm, the orange sub-energy band becomes 542˜590 nm, and the radiation quatum ouput q>0.9, showing a cubic crystal garnet structure. The phosphor has color coordinate ?(x+y)?0.89, and color purity ??0.89. The invention also provides a warm white LED that has light intensity J?300 cd, half open angle 2??60°, luminous efficiency 65???100 lm/W, and color temperature within 2800?T?5500K.
    Type: Grant
    Filed: February 7, 2008
    Date of Patent: October 4, 2011
    Inventors: Soshchin Naum, Wei-Hung Lo, Chi-Ruei Tsai
  • Patent number: 8007685
    Abstract: The present invention relates to a red light phosphor, which is based on sulfide and activating agent containing rare earth strontium or hafnium. It is characterized by that the aforementioned materials are a fluorine-sulfur oxide containing lanthanum-yttrium-zirconium and/or hafnium with its stoichiometric formula as (La1-x-y-zYxAyMez+4O)2S1(F?1)2z, and activating agent based on A=(TR+3=? Eu, Sm, Gd, Tb)+(TR+4?Pr+4), in which Me+4=Zr+4 and/or Hf+4. Compared with standard materials, the luminous intensity of the phosphor according to the present invention is increased to 1.6-2.4 times. Further, the red light phosphor according to the present invention has a mean diameter of d50?0.6 ?m. The present invention also discloses a multilayer photo-transforming film, in which the three-layer agro-film is filled with phosphor. The agro-film is based on polythene and its derivatives and added with photostabilizer.
    Type: Grant
    Filed: May 19, 2008
    Date of Patent: August 30, 2011
    Inventors: Soshchin Naum, Wei-Hung Lo, Chi-Ruei Tsai
  • Patent number: 7919011
    Abstract: A fluorescent powder using YAG (yttrium aluminum garnet) as the substrate and cerium as the excitant, and having added thereto Tb (terbium) ions, Ga (gallium) ions, Yb (ytterbium) ions and Lu (lutetium) ions. The YAG (yttrium aluminum garnet) has the chemical formula of (Y1-x-y-z-p-qGdxTbyYbzLupCeq)3Al5O12. The invention also provides an organic film layer using the fluorescent powder, and a LED using the organic film layer.
    Type: Grant
    Filed: November 20, 2007
    Date of Patent: April 5, 2011
    Inventors: Soshchin Naum, Wei-Hung Lo, Chi-Ruei Tsai
  • Patent number: 7888591
    Abstract: A silicon-based photovoltaic cell is disclosed having a red light conversion layer that absorbs ultraviolet rays, blue-purple or yellow-green light of the Sun's solar radiation and converts the absorption into a red, dark red and near infrared subband radiation. The maximum value of the solar radiation absorbed by the red light conversion layer is ?=470˜490 nm, and the maximum value of the photoluminescent spectrum of the red light conversion layer is within the photosensitive spectral zone of said single-crystal silicon substrate ?=700˜900 nm, i.e., in conformity with the optimal sensitivity area of silicon-based solar cells. The red light conversion layer has filled therein an ethyl acetoacetate or polycarbonate-based light-transmissive polymer that has evenly distributed therein a phosphor composed of ?-Al2O3—Ti2O3, having a quantum efficiency of 90%.
    Type: Grant
    Filed: May 20, 2008
    Date of Patent: February 15, 2011
    Inventors: Soshchin Naum, Wei-Hung Lo, Chi-Ruei Tsai
  • Patent number: 7816663
    Abstract: A silicate phosphor prepared from Mg2Me+20.5Ln3Si2.5O12-2yN?3yF?1y, in which Me+2=Ca, Sr, Ba, Ln=Sc, Lu, Er, Ho, excited by one single ion or an ion pair of d, f-elements such as Ak+n=Cu+1, Ce+3, Eu+2, Ag+1, Mn+2. The phosphor has a cubic garnet architecture prepared by solid phase synthesis, and radiates at green, green-yellow, yellow-orange spectrum regions. When mixed with (Y,Gd,Ce)3Al5O12 substrate-based phosphor, the compound mixture has warm white radiation and color temperature T<4000K with high luminous intensity and high luminescence efficiency. The invention also provides a warm white semiconductor using the silicate phosphor.
    Type: Grant
    Filed: December 5, 2008
    Date of Patent: October 19, 2010
    Inventors: Soshchin Naum, Wei-Hung Lo, Chi-Ruei Tsai