摘要:
A method of light-emitting diode (LED) packaging includes coupling a number of LED dies to corresponding bonding pads on a sub-mount. A mold apparatus having concave recesses housing LED dies is placed over the sub-mount. The sub-mount, the LED dies, and the mold apparatus are heated in a thermal reflow process to bond the LED dies to the bonding pads. Each recess substantially restricts shifting of the LED die with respect to the bonding pad during the heating.
摘要:
The present disclosure involves a method of fabricating a light-emitting diode (LED) wafer. The method first determines a target surface morphology for the LED wafer. The target surface morphology yields a maximum light output for LEDs on the LED wafer. The LED wafer is etched to form a roughened wafer surface. Thereafter, using a laser scanning microscope, the method investigates an actual surface morphology of the LED wafer. Afterwards, if the actual surface morphology differs from the target surface morphology beyond an acceptable limit, the method repeats the etching step one or more times. The etching is repeated by adjusting one or more etching parameters.
摘要:
The present application relates to an opto-electronic device. The opto-electronic device includes an n-cladding layer, a p-cladding layer and a multi-quantum well structure. The multi-quantum well structure is located between the p-cladding layer and the n-cladding layer, and includes a plurality of barrier layers, a plurality of well layers and a barrier tuning layer. The barrier tuning layer is made by doping the barrier layer adjacent to the p-cladding layer with an impurity therein for changing an energy barrier thereof to improve the light extraction efficiency of the opto-electronic device.
摘要:
An optical emitter includes a Light-Emitting Diode (LED) on a package wafer, transparent insulators, and one or more transparent electrical connectors between the LED die and one or more contact pads on the packaging wafer. The transparent insulators are deposited on the package wafer with LED dies attached using a lithography or a screen printing method. The transparent electrical connectors are deposited using physical vapor deposition, chemical vapor deposition, spin coating, spray coating, or screen printing and may be patterned using a lithography process and etching.
摘要:
The present application relates to an opto-electronic device. The opto-electronic device includes an n-cladding layer, a p-cladding layer and a multi-quantum well structure. The multi-quantum well structure is located between the p-cladding layer and the n-cladding layer, and includes a plurality of barrier layers, a plurality of well layers and a barrier tuning layer. The barrier tuning layer is made by doping the barrier layer adjacent to the p-cladding layer with an impurity therein for changing an energy barrier thereof to improve the light extraction efficiency of the opto-electronic device.
摘要:
A method for treating waste gas containing acid and/or base, employing fine spray-scrubbing technology for treating the waste gas mentioned above, wherein the scrubbing solution is atomized to generate mists with droplet size of 1 to 100 μm. Another feature of the present invention is to combine the application of surfactant in wet scrubbing technology for treating waste gas containing acids, bases, or both, especially, in a low concentration. Another feature of the present invention is to combine spray tower and/or packed tower and/or other scrubbers vertically/horizontally to get enhanced performance of the conventional control systems.
摘要:
A system for screening a small molecule library with 250,000 molecules to find out a compound of an anti-hypertensive drug aiming at human Angiotensin II type IA receptor is provided. The system includes a first database having a three-dimensional structure datum of a human Angiotensin II type IA receptor, a second database having molecular data of a plurality of small molecules, and a computer acquiring the three-dimensional structure datum and the molecular data from the first database and the second database respectively, wherein the computer has a molecular docking software for calculating a free energy of the human Angiotensin II type IA receptor bound to each of the plurality of small molecules, ranks the plurality of small molecules according to the respective free energy so as to select a top small molecule in the ranking as the compound of the drug.
摘要:
A fan device includes: a fan housing configured with a receiving space defined among opposite top and bottom walls, and a surrounding side wall; and a fan impeller mounted in the receiving space, disposed adjacent to an air outlet in the top wall and operable to rotate about a central axis transverse to the top and bottom walls of the fan housing. The fan impeller includes a hub body disposed coaxially with the central axis, and a plurality of angularly spaced apart fan blades extending outwardly and radially from the hub body. An angular distance between each adjacent pair of the fan blades is different from that of any other adjacent pair of the fan blades.
摘要:
A fan device includes: a fan housing configured with a receiving space defined among opposite top and bottom walls, and a surrounding side wall; a fan impeller mounted in the receiving space, disposed adjacent to an air outlet in the top wall and operable to rotate about a central axis transverse to the top and bottom walls of the fan housing; and an air-guiding unit mounted fixedly in the receiving space and disposed adjacent to an air inlet in the bottom wall. The air-guiding unit includes a central connecting member disposed axially with the central axis, and a plurality of angularly spaced apart air-guiding blades interconnecting the central connecting member and the surrounding sidewall. An angular distance between each adjacent pair of the air-guiding blades is different from that of any other adjacent pair of the air-guiding blades.
摘要:
A method for treating waste gas containing acid and/or base, employing fine spray-scrubbing technology for treating the waste gas mentioned above, wherein the scrubbing solution is atomized to generate mists with droplet size of 1 to 100 μm. Another feature of the present invention is to combine the application of surfactant in wet scrubbing technology for treating waste gas containing acids, bases, or both, especially, in a low concentration. Another feature of the present invention is to combine spray tower and/or packed tower and/or other scrubbers vertically/horizontally to get enhanced performance of the conventional control systems.