Patents by Inventor Charun Sae-lee

Charun Sae-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).

  • Patent number: 8449356
    Abstract: A fluid discharge method and apparatus is provided. The fluid discharge apparatus includes a first structure defining a first duct therein, a second structure defining a second duct therein and a third structure defining a third duct therein. Conduits formed in the structures, accurately positioned during machining thereof, extend from openings towards the ducts. Fluid in the ducts is initially directed into the conduits and subsequently out of the openings towards a cutting area comprising portions of a cutting blade and a workpiece being processed by the cutting blade. The conduits are shaped for generating a nozzle-type flow therethrough for accurate directional control of fluid streams discharged from the conduits. A method of forming the fluid discharge apparatus is also provided.
    Type: Grant
    Filed: July 22, 2008
    Date of Patent: May 28, 2013
    Assignee: Utac Thai Limited
    Inventor: Charun Sae-Lee
  • Patent number: 7572168
    Abstract: A method of singulating semiconductor devices applies a blade to a molded strip that includes the semiconductor device. The blade generates a kerf at a contact point between the blade and the molded strip. The kerf is filled with a plurality of particles. The kerf separates the semiconductor device from the molded strip. The method cools the blade by using a synthetic lubricant. The method lubricates the blade by using the synthetic lubricant. The method rinses the kerf by using the synthetic lubricant. Rinsing the kerf removes a substantial quantity of the particles from the kerf. A system singulates semiconductor devices from a molded strip by using a blade, a temperature control device, and a synthetic lubricant. The blade singulates the semiconductor device from the molded strip. The temperature control device applies the synthetic lubricant to the blade. The synthetic lubricant cools, lubricates, or rinses the blade, or a combination thereof, during a singulation process.
    Type: Grant
    Filed: March 13, 2007
    Date of Patent: August 11, 2009
    Assignee: UTAC Thai Limited
    Inventors: Apichart Phaowongsa, Somchai Nondhasitthichai, Charun Sae-lee, Praphan Sararat