ClassID:

207274

H01L21/4835 - CPC Classification

Classification description:

Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof; Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer; Manufacture or treatment of parts, e.g. containers, prior to assembly of the devices, using processes not provided for in a single one of the subgroups -; Conductive parts; Flat leads, e.g. lead frames with or without insulating supports Cleaning, e.g. removing of solder

Recent Application in this class:
#1
20250385162
2025-12-18

SEMICONDUCTOR DEVICE ASSEMBLIES WITH WETTABLE DIE ATTACH AREA AND ASSOCIATED METHODS

#2
20250374648
2025-12-04

SEMICONDUCTOR DEVICE, POWER CONVERSION APPARATUS, AND METHOD FOR MANUFACTURING THE SAME

#3
20250336684
2025-10-30

METHOD FOR MANUFACTURING PACKAGED DEVICE CHIPS

#4
20250236955
2025-07-24

CHEMICALLY ANCHORED MOLD COMPOUNDS IN SEMICONDUCTOR PACKAGES

#5
20250183132
2025-06-05

SEMICONDUCTOR PACKAGE HAVING WETTABLE LEAD FLANKS AND TIE BARS AND METHOD OF MAKING THE SAME

#6
20250125228
2025-04-17

METHOD OF MANUFACTURING SEMICONDUCTOR DEVICES AND CORRESPONDING SEMICONDUCTOR DEVICE

#7
20250087631
2025-03-13

SYSTEMS AND METHODS RELATED TO WIRE BOND CLEANING AND WIRE BONDING RECOVERY

#8
20250087563
2025-03-13

SEMICONDUCTOR PACKAGE WITH NICKEL-SILVER PRE-PLATED LEADFRAME

#9
20240153853
2024-05-09

Semiconductor package with nickel-silver pre-plated leadframe

#10
20240096646
2024-03-21

CLEANING PROCESS FOR SOURCE/DRAIN EPITAXIAL STRUCTURES

#11
20230420340
2023-12-28

Semiconductor package having wettable lead flanks and tie bars and method of making the same

#12
20230411175
2023-12-21

METHOD FOR MANUFACTURING A SEMICONDUCTOR PACKAGE ASSEMBLY AS WELL AS SUCH SEMICONDUCTOR PACKAGE ASSEMBLY

#13
20230272536
2023-08-31

Chemically anchored mold compounds in semiconductor packages

#14
20230095013
2023-03-30

CLEANING AGENT AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE

#15
20230018842
2023-01-19

WORKPIECE SUPPORT SYSTEM FOR PLASMA TREATMENT AND METHOD OF USING THE SAME

#16
20220336413
2022-10-20

Systems and methods related to wire bond cleaning and wire bonding recovery

#17
20220285252
2022-09-08

METAL COMPONENT

#18
20220208665
2022-06-30

Semiconductor package with nickel-silver pre-plated leadframe

#19
20220165581
2022-05-26

Cleaning process for source/drain epitaxial structures

#20
20210098268
2021-04-01

Method of fabricating carrier for wafer level package by using lead frame

#21
20200335431
2020-10-22

SEMICONDUCTOR DEVICE PACKAGE

#22
20200273813
2020-08-27

Semiconductor packages including roughening features

#23
20190237396
2019-08-01

Direct selective adhesion promotor plating

#24
20180076118
2018-03-15

SEMICONDUCTOR DEVICE PACKAGE

#25
20180033647
2018-02-01

Sawn leadless package having wettable flank leads

#26
20170271245
2017-09-21

Direct selective adhesion promotor plating

#27
20170110437
2017-04-20

Wire bond cleaning method and wire bonding recovery process

#28
20170092569
2017-03-30

Direct selective adhesion promotor plating

#29
20170025329
2017-01-26

Lead frame and method for manufacturing same

#30
20160254214
2016-09-01

Method of manufacturing semiconductor device and semiconductor device

#31
20160233204
2016-08-11

Method of manufacturing semiconductor device

#32
20160126166
2016-05-05

Flip-chip on leadframe semiconductor packaging structure and fabrication method thereof

#33
20160102394
2016-04-14

METHOD FOR PREPARING GROUNDING SUBSTRATE FOR SEMICONDUCTOR DEVICE

#34
20160099200
2016-04-07

ALUMINUM ALLOY LEAD FRAME FOR A SEMICONDUCTOR DEVICE AND CORRESPONDING MANUFACTURING PROCESS

#35
20160020177
2016-01-21

RADIO FREQUENCY SHIELDING CAVITY PACKAGE

#36
20160005712
2016-01-07

STRUCTURE AND METHOD OF PACKAGED SEMICONDUCTOR DEVICES WITH BENT-LEAD QFN LEADFRAMES

#37
20150262918
2015-09-17

STRUCTURE AND METHOD OF PACKAGED SEMICONDUCTOR DEVICES WITH BENT-LEAD QFN LEADFRAMES

#38
20150214209
2015-07-30

Method of manufacturing semiconductor device

#39
20140264153
2014-09-18

Processing system and method for providing a heated etching solution

#40
20140141622
2014-05-22

Process for etching metals

#41
20130284066
2013-10-31

Metal surface treatment aqueous solution and method for inhibiting whiskers on a metal surface

#42
20130260551
2013-10-03

Semiconductor device and method of forming the same

#43
20130221502
2013-08-29

Joined body having an anti-corrosion film formed around a junction portion, and a semiconductor device having the same

#44
20120153498
2012-06-21

Semiconductor device and method of forming the same

#45
20120018498
2012-01-26

PRE-SOLDER METHOD AND REWORK METHOD FOR MULTI-ROW QFN CHIP

#46
20110316137
2011-12-29

Semiconductor device with the leads projected from sealing body

#47
20110281124
2011-11-17

Solution and process for increasing the solderability and corrosion resistance of a metal or metal alloy surface

#48
20110201158
2011-08-18

Selective removal of gold from a lead frame

#49
20110097854
2011-04-28

Method of manufacturing semiconductor device and method of manufacturing electronic device

#50
20100155260
2010-06-24

MICRO-BLASTING TREATMENT FOR LEAD FRAMES

#51
20100116870
2010-05-13

Metal surface treatment aqueous solution and method for inhibiting whiskers on a metal surface

#52
20090317948
2009-12-24

Method for manufacturing a semiconductor integrated circuit device

#53
20090111220
2009-04-30

Coated lead frame

#54
20080044952
2008-02-21

Packaged integrated circuit having gold removed from a lead frame

#55
20070105459
2007-05-10

Joining method and joining device

#56
20060202332
2006-09-14

Semiconductor chip packaging apparatus and method of manufacturing semiconductor chip package

#57
20060151878
2006-07-13

Semiconductor chip packaging apparatus and method of manufacturing semiconductor chip package

#58
20060097366
2006-05-11

Semiconductor package including leadframe roughened with chemical etchant to prevent separation between leadframe and molding compound

#59
20060060947
2006-03-23

Method and apparatus for removing molding residues from lead-frames

#60
20060043565
2006-03-02

Laser removal of plating tails for high speed packages

#61
20050255795
2005-11-17

Method and system for deflashing mold compound

#62
20050081375
2005-04-21

Printed circuit board assembly and method