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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
8367447 Method for making light emitting diode Feb. 5, 2013
8368087 Light emitting device having vertical structure and method for manufacturing the same Feb. 5, 2013
8368183 Nitride semiconductor device Feb. 5, 2013
8367446 Method for preparing patterned substrate by using nano- or micro- particles Feb. 5, 2013
8357557 Semiconductor light-emitting device and process for production thereof Jan. 22, 2013
8354289 Method for manufacturing gallium nitride wafer Jan. 15, 2013
8344392 Light-emitting element and the manufacturing method thereof Jan. 1, 2013
8343424 Analysis device with an array of focusing microstructures Jan. 1, 2013
8329481 Manufacturing method of nitride semiconductor light emitting elements Dec. 11, 2012
8324083 Method for producing group III nitride compound semiconductor element Dec. 4, 2012
8319249 Semiconductor light emitting device Nov. 27, 2012
8314443 Semiconductor light emitting device with a contact formed on a textured surface Nov. 20, 2012
8309381 Group III nitride semiconductor light-emitting device and production method therefor Nov. 13, 2012
8309972 LEDs with efficient electrode structures Nov. 13, 2012
8304800 Light emitting device, light emitting device package, and lighting device system Nov. 6, 2012
8304334 III-V compound crystal and semiconductor electronic circuit element Nov. 6, 2012
8304273 Insulated nanogap devices and methods of use thereof Nov. 6, 2012
8294171 Light emitting device having plurality of non-polar light emitting cells and method of fabricating the same Oct. 23, 2012
8288185 Semiconductor devices and methods of forming the same Oct. 16, 2012
8283677 Nitride semiconductor light-emitting device Oct. 9, 2012
8273584 Light emitting diode Sep. 25, 2012
8269306 Isolation regions Sep. 18, 2012
8258537 Efficient light emitting semiconductor device Sep. 4, 2012
8260151 Optical communication integration Sep. 4, 2012
8232571 Light emitting device having plurality of light emitting cells and method of fabricating the same Jul. 31, 2012
8227277 Group-III nitride semiconductor laser device, and method of fabricating group-III nitride semiconductor laser device Jul. 24, 2012
8227820 Semiconductor light-emitting device Jul. 24, 2012
8222662 LED package structure Jul. 17, 2012
8218919 Method and device for providing electronic circuitry on a backplate Jul. 10, 2012
8211722 Flip-chip GaN LED fabrication method Jul. 3, 2012
8211724 Light emitting device having a plurality of non-polar light emitting cells and a method of fabricating the same Jul. 3, 2012
8198177 Al.sub.xIn.sub.yGa.sub.l-x-yN mixture crystal substrate, method of growing same and method of producing same Jun. 12, 2012
8193018 Patterning method for light-emitting devices Jun. 5, 2012
8193479 Very small image sensor Jun. 5, 2012
8188508 Semiconductor light emitting device with a contact formed on a textured surface May. 29, 2012
8188487 Surface emitting laser with trenches to define conductive regions May. 29, 2012
8183072 Light emitting device having plurality of non-polar light emitting cells and method of fabricating the same May. 22, 2012
8168457 Shaped articles comprising semiconductor nanocrystals and methods of making and using same May. 1, 2012
8159000 LED package having an array of light emitting cells coupled in series Apr. 17, 2012
8137995 Double-sided semiconductor device and method of forming top-side and bottom-side interconnect structures Mar. 20, 2012
8138003 Method of manufacturing nitride semiconductor substrates having a base substrate with parallel trenches Mar. 20, 2012
8139619 Group-III nitride semiconductor laser device, and method for fabricating group-III nitride semiconductor laser device Mar. 20, 2012
8134223 III-V compound crystal and semiconductor electronic circuit element Mar. 13, 2012
8133803 Method for fabricating semiconductor substrates and semiconductor devices Mar. 13, 2012
8129207 Light emitting diode having a thermal conductive substrate and method of fabricating the same Mar. 6, 2012
8124433 Low optical loss electrode structures for LEDs Feb. 28, 2012
8114690 Methods of low loss electrode structures for LEDs Feb. 14, 2012
8114691 Semiconductor light emitting device having textured structure and method of manufacturing the same Feb. 14, 2012
8115224 Light emitting device Feb. 14, 2012
8115226 Low optical loss electrode structures for LEDs Feb. 14, 2012

1 2 3 4 5 6 7 8 9










 
 
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