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Class Information
Number: 438/42
Name: Semiconductor device manufacturing: process > Making device or circuit emissive of nonelectrical signal > Groove formation
Description: Process having a step of removing material from the semiconductor substrate to form a recessed feature (e.g., trench, notch, etc.) relative to the surrounding regions of the substrate.










Sub-classes under this class:

Class Number Class Name Patents
438/43 Tapered etching 247
438/44 With epitaxial deposition of semiconductor in groove 314


Patents under this class:
1 2 3 4 5 6 7 8 9

Patent Number Title Of Patent Date Issued
8709835 Method for manufacturing light emitting diodes Apr. 29, 2014
8703512 Light emitting device and method of manufacturing the same Apr. 22, 2014
8664022 Submount for light emitting diode and method for fabricating the same Mar. 4, 2014
8664026 Method for fabricating semiconductor lighting chip Mar. 4, 2014
8655126 Method of manufacturing optical waveguide having mirror face, and optoelectronic composite wiring board Feb. 18, 2014
8648380 Light emitting device having a plurality of non-polar light emitting cells and a method of fabricating the same Feb. 11, 2014
8647961 Method for filling cavities in wafers, correspondingly filled blind hole and wafer having correspondingly filled insulation trenches Feb. 11, 2014
8642368 Enhancement of LED light extraction with in-situ surface roughening Feb. 4, 2014
8642388 Method for manufacturing light emitting diodes including forming circuit structures with a connecting section Feb. 4, 2014
8592237 Method of manufacturing a thin film transistor including forming bus line patterns in a substrate and filling with metal Nov. 26, 2013
8592843 Light emitting device, light emitting device package and lighting system Nov. 26, 2013
8580591 Method of manufacturing vertical pin diodes Nov. 12, 2013
8574939 Semiconductor optoelectronics structure with increased light extraction efficiency and fabrication method thereof Nov. 5, 2013
8569080 Method for packaging light emitting diode Oct. 29, 2013
8536594 Solid state lighting devices with reduced dimensions and methods of manufacturing Sep. 17, 2013
8525150 Semiconductor light emission device for preventing a regional concentration phenomenon of a current flow and improving the reliability Sep. 3, 2013
8525201 Light emitting device and method of manufacturing the same Sep. 3, 2013
8525221 LED with improved injection efficiency Sep. 3, 2013
8519412 Semiconductor light-emitting device and method for manufacturing thereof Aug. 27, 2013
8513039 Method for fabricating semiconductor lighting chip Aug. 20, 2013
8513035 LED chip, LED and a method for manufacturing LED chip Aug. 20, 2013
8506830 Pattern formation method Aug. 13, 2013
8501508 Method of forming quantum well mosfet channels having uni-axial strains caused by metal source/drains Aug. 6, 2013
8501510 Optoelectronic component with three-dimension quantum well structure and method for producing the same Aug. 6, 2013
8501511 Method of manufacturing laser diode Aug. 6, 2013
8502249 Semiconductor light-emitting device having groove in P-type semiconductor layer and method for manufacturing the same Aug. 6, 2013
8492186 Method for producing group III nitride semiconductor layer, group III nitride semiconductor light-emitting device, and lamp Jul. 23, 2013
8476094 Method for making light emitting diode Jul. 2, 2013
8476093 Method of manufacturing a display substrate Jul. 2, 2013
8476089 Method for manufacturing light emitting diode package Jul. 2, 2013
8476085 Method of fabricating dual trench isolated epitaxial diode array Jul. 2, 2013
8460089 Gaming system, gaming controller, and a prize triggering method Jun. 11, 2013
8461040 Method of forming shielded gate power transistor utilizing chemical mechanical planarization Jun. 11, 2013
8455282 Method of manufacturing vertical light emitting diode with dual surface pattern to improve light extraction Jun. 4, 2013
8440485 Method for making light emitting diode May. 14, 2013
8440477 Method for manufacturing LED May. 14, 2013
8438710 Method of manufacturing a structure with an integrated circuit and a silicon condenser microphone mounted on a single substrate May. 14, 2013
8436395 Semiconductor light emitting device May. 7, 2013
8436389 Light emitting device having a plurality of non-polar light emitting cells and a method of fabricating the same May. 7, 2013
8435820 Patterned substrate for hetero-epitaxial growth of group-III nitride film May. 7, 2013
8435819 Method for making light emitting diode May. 7, 2013
8435818 Method for making light emitting diode May. 7, 2013
8435815 Surface-emitting semiconductor laser and manufacturing method thereof May. 7, 2013
8415181 Light emitting element with improved light extraction efficiency, light emitting device comprising the same, and fabricating method of the light emitting element and the light emitting device Apr. 9, 2013
8405068 Reflecting light emitting structure and method of manufacture thereof Mar. 26, 2013
8389303 Organic EL element and method of manufacturing the same Mar. 5, 2013
8381387 Method of fabricating an ultrasonic transducer Feb. 26, 2013
8384112 Light emitting chip Feb. 26, 2013
8377796 III-V compound semiconductor epitaxy from a non-III-V substrate Feb. 19, 2013
8375560 Method for manufacturing a condenser microphone Feb. 19, 2013

1 2 3 4 5 6 7 8 9










 
 
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