Abstract: A semiconductor light emitting device and a method for making the semiconductor light emitting device are described. The semiconductor light emitting device includes an epitaxial structure having a first type doped layer, a light emitting layer, and a second type doped layer. The epitaxial structure may further include an undoped layer. A substrate is bonded to at least one surface of the epitaxial structure with an adhesive layer. One or more posts are located in the adhesive layer. The posts may have different widths depending on the location of the posts and/or the posts may only be located under certain portions of the epitaxial structure.
Type:
Application
Filed:
July 19, 2011
Publication date:
January 24, 2013
Applicants:
PHOSTEK, INC., NCKU RESEARCH AND DEVELOPMENT FOUNDATION
Abstract: A light-emitting-diode (LED) array includes a first LED unit having a first electrode and a second LED unit having a second electrode. The first LED unit and the second LED unit are positioned on a common substrate and are separated by a gap. Two or more polymer materials form a multi-layered structure in the gap. A first polymer material substantially fills a lower portion of the gap and at least one additional polymer material substantially fills a remainder of the gap above the first polymer material. A kinematic viscosity of the first polymer material is less than a kinematic viscosity of the at least one additional polymer material. An interconnect, positioned on top of the at least one additional polymer material, electrically connects the first electrode and the second electrode.
Type:
Application
Filed:
May 25, 2012
Publication date:
September 13, 2012
Applicants:
NCKU RESEARCH AND DEVELOPMENT FOUNDATION, PHOSTEK, INC.
Abstract: A light-emitting-diode (LED) array includes a first LED device having a first electrode and a second LED device having a second electrode. The first LED device and the second LED device are positioned on a common substrate. At least one polymer material is between the first LED device and the second LED device. A plurality of microsctructures are in the at least one polymer material. An interconnect is formed on top of the at least one polymer material to electrically connect the first electrode and the second electrode.
Type:
Application
Filed:
May 2, 2012
Publication date:
August 23, 2012
Applicants:
NCKU RESEARCH AND DEVELOPMENT FOUNDATION, PHOSTEK, INC.
Abstract: A light emitting diode array includes a first light emitting diode having a first electrode and a second light emitting diode having a second electrode. The first and second light emitting diodes are separated. A first polymer layer is positioned between the light emitting diodes. An interconnect located at least partially on the first polymer layer connects the first electrode to the second electrode. A permanent substrate is coupled to the light emitting diodes. The permanent substrate is coupled to the side of the light emitting diodes with the interconnect. A second polymer layer at least partially encapsulates the side of the light emitting diodes opposite the permanent substrate (the side opposite the interconnect).
Type:
Application
Filed:
November 2, 2011
Publication date:
August 2, 2012
Applicants:
NCKU RESEARCH AND DEVELOPMENT FOUNDATION, PHOSTEK, INC.
Abstract: A light emitting diode array includes a first light emitting diode having a first electrode and a second light emitting diode having a second electrode. The first and second light emitting diodes are separated. A first polymer layer is positioned between the light emitting diodes. An interconnect located at least partially on the first polymer layer connects the first electrode to the second electrode. A permanent substrate is coupled to the light emitting diodes. The permanent substrate is coupled to the side of the light emitting diodes opposite the interconnect. A second polymer layer at least partially encapsulates the side of the light emitting diodes with the interconnect.
Type:
Application
Filed:
November 2, 2011
Publication date:
August 2, 2012
Applicants:
NCKU RESEARCH AND DEVELOPMENT FOUNDATION, PHOSTEK, INC.
Abstract: A method for packaging LED chip modules is provided. First, a first sacrificial layer is disposed on a substrate. Afterwards, LED chips are synchronously disposed on the first sacrificial layer before the first sacrificial layer cures. Next, a first material, a second sacrificial layer, and a second material are used to form a support layer on the first sacrificial layer. The first sacrificial layer and the second sacrificial layer are then removed, so that LED chip modules are obtained, wherein each LED chip module has a corresponding support layer. Furthermore, a moving fixture is provided to synchronously remove chips from a wafer and dispose them on the sacrificial layer.
Type:
Application
Filed:
September 6, 2011
Publication date:
March 8, 2012
Applicants:
PHOSTEK, INC., NATIONAL CHENG KUNG UNIVERSITY
Inventors:
Ray-Hua Horng, Jhih-Sin Hong, Shih-Feng Shao, Heng Liu