ClassID:

120611

C23F1/40 - CPC Classification

Classification description:

Etching metallic material by chemical means; Etching compositions; Aqueous compositions; Alkaline compositions for etching other metallic material

Recent Application in this class:
#1
20260098346
2026-04-09

COMPOSITION, METHOD OF TREATING METAL-CONTAINING LAYER BY USING THE SAME, AND METHOD OF MANUFACTURING SEMICONDUCTOR DEVICE BY USING THE SAME

#2
20260059660
2026-02-26

Transparent Conductive Circuit

#3
20250083413
2025-03-13

STAINLESS STEEL POLYMER ADHESION LAYER

#4
20250034720
2025-01-30

METHOD FOR RECYCLING RARE EARTH SINTERED MAGNET

#5
20240276638
2024-08-15

Transparent Conductive Circuit

#6
20230287574
2023-09-14

ETCHANT COMPOSITION FOR TITANIUM-CONTAINING METAL LAYER AND ETCHING METHOD USING THE SAME

#7
20230257887
2023-08-17

Treatment liquid for semiconductor with ruthenium and method of producing the same

#8
20230029439
2023-01-26

Method for recycling rare earth sintered magnet

#9
20220411937
2022-12-29

Semiconductor wafer treatment liquid and production method thereof

#10
20220393104
2022-12-08

Ruthenium removal composition and method of producing magnetoresistive random access memory

#11
20220095452
2022-03-24

Transparent conductive circuit

#12
20220002622
2022-01-06

Chemical liquid and method for treating object to be treated

#13
20210388508
2021-12-16

Treatment liquid for semiconductor with ruthenium and method of producing the same

#14
20210355586
2021-11-18

Method for producing base for metal masks, method for producing metal mask for vapor deposition, base for metal masks, and metal mask for vapor deposition

#15
20210305053
2021-09-30

Substrate processing apparatus and substrate processing method

#16
20210155851
2021-05-27

Ruthenium-etching solution, method for manufacturing ruthenium-etching solution, method for processing object to be processed, and method for manufacturing ruthenium-containing wiring

#17
20200362466
2020-11-19

Composition and method for creating nanoscale surface geometry on an implantable device

#18
20200295258
2020-09-17

Ruthenium removal composition and method of producing magnetoresistive random access memory

#19
20200190673
2020-06-18

Ruthenium etching composition and method

#20
20200190672
2020-06-18

ETCHING SOLUTION, METHOD FOR PROCESSING OBJECT TO BE PROCESSED, AND METHOD FOR MANUFACTURING SEMICONDUCTOR ELEMENT

#21
20190256982
2019-08-22

Nanocrystalline material based on stainless steel surface, and preparation method therefor

#22
20190203372
2019-07-04

Coating method for clad steel and coating solution for coating clad steel

#23
20190186036
2019-06-20

Anti-coking nanomaterial based on stainless steel surface, and preparation method therefor

#24
20190148634
2019-05-16

Ruthenium removal composition and method of producing magnetoresistive random access memory

#25
20180301349
2018-10-18

Substrate treatment method and substrate treatment apparatus

#26
20180209049
2018-07-26

Etching solution for tungsten and GST films

#27
20180154608
2018-06-07

Method for producing metal containing composite and metal containing composite formed by adhesion

#28
20180065162
2018-03-08

Method for producing base for metal masks, method for producing metal mask for vapor deposition, base for metal masks, and metal mask for vapor deposition

#29
20170335480
2017-11-23

Coating method for clad steel and coating solution for coating clad steel

#30
20170260449
2017-09-14

Compositions and methods for selectively etching titanium nitride

#31
20170236726
2017-08-17

Etching apparatus and method, and flexible film etched by the etching method

#32
20170077523
2017-03-16

Nanotubular intermetallic compound catalyst for positive electrode of lithium air battery and method of preparing the same

#33
20160351417
2016-12-01

Substrate treatment method and substrate treatment apparatus

#34
20160351374
2016-12-01

Thin-ice grid assembly for cryo-electron microscopy

#35
20160312162
2016-10-27

Removal composition for selectively removing hard mask and methods thereof

#36
20160289614
2016-10-06

Stripping solution for zinc/nickel alloy plating from metal substrate

#37
20160254182
2016-09-01

Removal composition for selectively removing hard mask and methods thereof

#38
20160133349
2016-05-12

Nanostructure, method of preparing the same, and panel units comprising the nanostructure

#39
20160089763
2016-03-31

Composition for tungsten CMP

#40
20150361341
2015-12-17

High-efficiency high-quality and safe alkaline cupric chloride etchant for printed circuit board

#41
20150284852
2015-10-08

Process for preparation of micron-sized single curved crystals of metals

#42
20150275376
2015-10-01

SELECTIVE ETCH CHEMISTRY FOR GATE ELECTRODE MATERIALS

#43
20150069016
2015-03-12

Polishing composition

#44
20150060405
2015-03-05

Method for manufacturing microstructure

#45
20150048053
2015-02-19

Selective etching method

#46
20150027978
2015-01-29

Compositions and methods for selectively etching titanium nitride

#47
20140335411
2014-11-13

ETCHED SILICON STRUCTURES, METHOD OF FORMING ETCHED SILICON STRUCTURES AND USES THEREOF

#48
20140000650
2014-01-02

Process for etching a recessed structure filled with tin or a tin alloy

#49
20120256122
2012-10-11

COMPOSITION FOR ETCHING OF RUTHENIUM-BASED METAL, AND PROCESS FOR PREPARATION OF THE SAME

#50
20120171502
2012-07-05

Process for surface treating magnesium alloy and article made with same

#51
20120171500
2012-07-05

PROCESS FOR SURFACE TREATING MAGNESIUM ALLOY AND ARTICLE MADE WITH SAME

#52
20120045898
2012-02-23

Ru cap metal post cleaning method and cleaning chemical

#53
20110138966
2011-06-16

Method of detinning Sn plating layer on Cu-based material

#54
20090184092
2009-07-23

Palladium-Selective Etching Solution and Method for Controlling Etching Selectivity

#55
20090139421
2009-06-04

Metal pattern and process for producing the same

#56
20090078679
2009-03-26

ETCHING SOLUTION AND METHOD FOR REGENERATING WASTE LIQUID THEREOF, AND METHOD FOR RECOVERING VALUABLE METALS FROM WASTE LIQUID

#57
20080311300
2008-12-18

Composition and Use Thereof

#58
20080196546
2008-08-21

Use of non-ionic surfactants in the production of metals

#59
20080025890
2008-01-31

Use of surfactants in the production of metal

#60
20070232510
2007-10-04

Method and composition for selectively stripping silver from a substrate

#61
20070138131
2007-06-21

Method of forming a patterned layer on a substrate

#62
20070000609
2007-01-04

ETCHING APPARATUS

#63
20060237390
2006-10-26

Combined Microscale Mechanical Topography and Chemical Patterns on Polymer Substrates for Cell Culture

#64
20060207970
2006-09-21

Printed circuit patterned embedded capacitance layer

#65
20060046501
2006-03-02

Screening of electroless nickel/immersion gold-plated substrates with black pad defect