ClassID:

120610

C23F1/38 - CPC Classification

Classification description:

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

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
20260071332
2026-03-12

ETCHANT AND METHOD FOR MANUFACTURING SEMICONDUCTOR DEVICE

#3
20240264108
2024-08-08

Superhydrophilic thick-film pH sensor based on chemical etching, and preparation method thereof

#4
20240254390
2024-08-01

COMPOSITION AND METHOD FOR CREATING NANOSCALE SURFACE GEOMETRY ON AN IMPLANTABLE DEVICE

#5
20230168006
2023-06-01

METHOD FOR PRODUCING PLASMONIC-NANOSTRUCTURE SPECTRALLY SELECTIVE SOLAR ABSORBER HAVING HIGH SOLAR ABSORPTANCE, LOW THERMAL EMITTANCE, AND HIGH THERMAL STABILITY

#6
20230108887
2023-04-06

METHOD FOR PREPARING TITANIUM-RESIN ASSEMBLY AND TITANIUM TREATMENT SOLUTION FOR SAME

#7
20230036561
2023-02-02

OSTEOINDUCTIVE AND OSTEOCONDUCTIVE IMPLANT OR BIOACTIVE SCAFFOLD SURFACE AND METHOD FOR PRODUCING SUCH A SURFACE

#8
20230030323
2023-02-02

METHOD AND COMPOSITION FOR ETCHING MOLYBDENUM

#9
20220049361
2022-02-17

Method for manufacturing ruthenium wiring

#10
20220033976
2022-02-03

METHOD FOR INHIBITING GENERATION OF RUTHENIUM-CONTAINING GAS FROM RUTHENIUM-CONTAINING LIQUID

#11
20220017822
2022-01-20

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

#12
20220002622
2022-01-06

Chemical liquid and method for treating object to be treated

#13
20210324525
2021-10-21

Method and composition for etching molybdenum

#14
20210292647
2021-09-23

SURFACTANTS FOR ELECTRONICS PRODUCTS

#15
20210288172
2021-09-16

Substrate processing liquid for etching a metal layer, substrate processing method and substrate processing apparatus

#16
20210252187
2021-08-19

Method for surface treatment of a bio-compatible metal material and implant treated by said method

#17
20200190673
2020-06-18

Ruthenium etching composition and method

#18
20190274791
2019-09-12

Titanium nano-scale etching on an implant surface

#19
20190198392
2019-06-27

METHODS OF ETCHING A TUNGSTEN LAYER

#20
20190127858
2019-05-02

Solution and method for etching titanium based materials

#21
20190060515
2019-02-28

Method for surface treatment of a biocompatible metal material and implant treated by said method

#22
20180209049
2018-07-26

Etching solution for tungsten and GST films

#23
20180153660
2018-06-07

PROCESS FOR THE PREPARATION OF A TOPOGRAPHY FOR IMPROVED PROTEIN ADHERENCE ON A BODY MADE OF TITANIUM OR A TITANIUM ALLOY

#24
20180025913
2018-01-25

Semiconductor device and method for manufacturing the same

#25
20170360532
2017-12-21

Titanium nano-scale etching on an implant surface

#26
20170282424
2017-10-05

METAL-RESIN COMPOSITE AND METHOD OF PREPARING THE SAME AND SHELL OF ELECTRONIC PRODUCT

#27
20170154798
2017-06-01

Method for manufacturing semiconductor device

#28
20160322236
2016-11-03

Selective metal/metal oxide etch process

#29
20160312162
2016-10-27

Removal composition for selectively removing hard mask and methods thereof

#30
20160293479
2016-10-06

Selectively removing titanium nitride hard mask and etch residue removal

#31
20160254182
2016-09-01

Removal composition for selectively removing hard mask and methods thereof

#32
20160184059
2016-06-30

Titanium nano-scale etching on an implant surface

#33
20160177457
2016-06-23

Etching agent, etching method and etching agent preparation liquid

#34
20150216630
2015-08-06

Titanium nano-scale etching on an implant surface

#35
20150071326
2015-03-12

Temperature sensor and method for producing same

#36
20150048053
2015-02-19

Selective etching method

#37
20140034606
2014-02-06

Titanium nano-scale etching on an implant surface

#38
20130280916
2013-10-24

Etching agent, etching method and liquid for preparing etching agent

#39
20130248487
2013-09-26

Surface treatment for an implant surface

#40
20130115727
2013-05-09

Etching composition and method of manufacturing a display substrate using the system

#41
20130105729
2013-05-02

Etching liquid for film of multilayer structure containing copper layer and molybdenum layer

#42
20120112123
2012-05-10

Etching composition for an under-bump metallurgy layer

#43
20110233169
2011-09-29

Titanium nano-scale etching on an implant surface

#44
20110230053
2011-09-22

Etching agent, etching method and liquid for preparing etching agent

#45
20110147341
2011-06-23

ETCHING SOLUTION FOR TITANIUM-BASED METAL, TUNGSTEN-BASED METAL, TITANIUM/TUNGSTEN-BASED METAL OR THEIR NITRIDES

#46
20110056914
2011-03-10

Process for the stripping of workpieces and stripping solution

#47
20090176363
2009-07-09

Method of forming a bump structure using an etching composition for an under bump metallurgy layer

#48
20090132048
2009-05-21

Biodegrading Coatings of Salt for Protecting Implants Against Organic Contaminants

#49
20090114619
2009-05-07

WET ETCHING METHOD AND WET ETCHING APPARATUS

#50
20080102292
2008-05-01

Surface treatment for a thin titanium foil

#51
20060137995
2006-06-29

Method for removal of metal from a workpiece

#52
20060124587
2006-06-15

Method for fabricating semiconductor device using ArF photolithography capable of protecting tapered profile of hard mask

#53
20050077267
2005-04-14

Method to etch chrome deposited on calcium fluoride object

#54
15144735
2016-11-15

Etching technique for microfabrication substrates