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Class Information
Number: 257/E21.502
Name: Active solid-state devices (e.g., transistors, solid-state diodes) > Processes or apparatus adapted for manufacture or treatment of semiconductor or solid-state devices or of parts thereof (epo) > Manufacture or treatment of semiconductor device (epo) > Device having at least one potential-jump barrier or surface barrier, e.g., pn junction, depletion layer, carrier concentration layer (epo) > Assembling semiconductor devices, e.g., packaging , including mounting, encapsulating, or treatment of packaged semiconductor (epo) > Encapsulation, e.g., encapsulation layer, coating (epo)
Description: This subclass is indented under subclass E21.499. This subclass is substantially the same in scope as ECLA classification H01L21/56.


Sub-classes under this class:

Class Number Class Name Patents
257/E21.503 Encapsulation of active face of flip chip device, e.g., under filling or under encapsulation of flip-chip, encapsulation perform on chip or mounting substrate (epo) 1,311
257/E21.504 Moulds (epo) 996


Patents under this class:
1 2 3 4 5 6 7 8 9 10 11 12 13 14

Patent Number Title Of Patent Date Issued
7432133 Plastic packaged device with die interface layer Oct. 7, 2008
7427811 Semiconductor substrate Sep. 23, 2008
7420129 Semiconductor package including a semiconductor device, and method of manufacturing the same Sep. 2, 2008
7407894 Compound semiconductor particles and production process therefor Aug. 5, 2008
7402459 Quad flat no-lead (QFN) chip package assembly apparatus and method Jul. 22, 2008
7393711 Method of producing a digital fingerprint sensor and the corresponding sensor Jul. 1, 2008
7393712 Fluidic MEMS device Jul. 1, 2008
7393716 Encapsulated organic semiconductor device and method Jul. 1, 2008
7387914 Semiconductor device and process for fabrication thereof Jun. 17, 2008
7384822 Package for semiconductor components and method for producing the same Jun. 10, 2008
7371610 Process for fabricating an integrated circuit package with reduced mold warping May. 13, 2008
7352071 Method of fabricating anti-warp package Apr. 1, 2008
7348220 Resin-encapsulated type semiconductor packages, and production method and apparatus therefor Mar. 25, 2008
7332375 Method of making an integrated circuit package Feb. 19, 2008
7329563 Method for fabrication of wafer level package incorporating dual compliant layers Feb. 12, 2008
7314778 Wafer-level processing of chip-packaging compositions including bis-maleimides Jan. 1, 2008
7300823 Apparatus for housing a micromechanical structure and method for producing the same Nov. 27, 2007
7297624 Semiconductor device and method for fabricating the same Nov. 20, 2007
7288441 Method for two-stage transfer molding device to encapsulate MMC module Oct. 30, 2007
7285444 Method of manufacturing semiconductor device Oct. 23, 2007
7279781 Two-stage transfer molding device to encapsulate MMC module Oct. 9, 2007
7271039 Method for manufacturing radiofrequency identification device using transfer paper and radiofrequency identification device produced using this method Sep. 18, 2007
7271037 Leadframe alteration to direct compound flow into package Sep. 18, 2007
7262507 Semiconductor-mounted device and method for producing same Aug. 28, 2007
7259449 Method and system for sealing a substrate Aug. 21, 2007
7253026 Ultra-thin semiconductor package device and method for manufacturing the same Aug. 7, 2007
7247521 Semiconductor assembly encapsulation mold and method for forming same Jul. 24, 2007
7226812 Wafer support and release in wafer processing Jun. 5, 2007
7214562 Method for encapsulating lead frame packages May. 8, 2007
7208345 Method of manufacturing a semiconductor device comprising stacked chips and a corresponding semiconductor device Apr. 24, 2007
7205170 Method for the production of LED bodies Apr. 17, 2007
7202107 Method for producing a semiconductor component with a plastic housing and carrier plate for performing the method Apr. 10, 2007
7193331 Semiconductor device and manufacturing process thereof Mar. 20, 2007
7179688 Method for reducing or eliminating semiconductor device wire sweep in a multi-tier bonding device and a device produced by the method Feb. 20, 2007
7179689 Package stress management Feb. 20, 2007
7172927 Warpage control of array packaging Feb. 6, 2007
7163846 Method for manufacturing circuit devices Jan. 16, 2007
7160756 Polymer encapsulated dicing lane (PEDL) technology for Cu/low/ultra-low k devices Jan. 9, 2007
7157310 Methods for packaging microfeature devices and microfeature devices formed by such methods Jan. 2, 2007
7122407 Method for fabricating window ball grid array semiconductor package Oct. 17, 2006
7074651 Packaging method for integrated circuits Jul. 11, 2006
7071028 Semiconductor device and its manufacturing method Jul. 4, 2006
7064010 Methods of coating and singulating wafers Jun. 20, 2006
7064047 Semiconductor device having a ball grid array and a fabrication process thereof Jun. 20, 2006
7061120 Stackable semiconductor package having semiconductor chip within central through hole of substrate Jun. 13, 2006
7041531 Method of fabricating flip chip ball grid array package May. 9, 2006
7037761 Method of producing an electronic component May. 2, 2006
7034383 Electronic component and panel and method for producing the same Apr. 25, 2006
7029948 Electrical or electronic component and method of producing same Apr. 18, 2006
7022552 Semiconductor device and method for fabricating semiconductor device Apr. 4, 2006

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