ClassID:

234837

H05K2203/0793 - CPC Classification

Classification description:

Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by; Treatments involving liquids, e.g. plating, rinsing characterised by the specific liquids involved; Using an aqueous solution, e.g. for cleaning or during drilling of holes Aqueous alkaline solution, e.g. for cleaning or etching

Recent Application in this class:
#1
20250324516
2025-10-16

METHOD FOR CLEANING A NONCONDUCTIVE SURFACE AND USE

#2
20250290205
2025-09-18

PROCESS FOR ETCHING CIRCUIT BOARD WITH ALKALINE TETRAAMMINECOPPER (II) SULFATE AND APPARATUS THEREFOR

#3
20220117092
2022-04-14

CONTINUOUS ETCHING SYSTEM

#4
20200409258
2020-12-31

Touch panel

#5
20200163219
2020-05-21

Microcircuit forming method and etching fluid composition

#6
20200090829
2020-03-19

Printed circuit surface finish, method of use, and assemblies made therefrom

#7
20200053881
2020-02-13

Method for manufacturing transfer film including seed layer, method for manufacturing circuit board by selectively etching seed layer, and etching solution composite

#8
20200032059
2020-01-30

Cured body and multilayered substrate

#9
20200031852
2020-01-30

Triazole silane compound, method for synthesizing said compound and use thereof

#10
20190297729
2019-09-26

Flexible circuit electrode array and method of manufacturing the same

#11
20190271912
2019-09-05

Touch panel and direct patterning method thereof

#12
20190271911
2019-09-05

Direct patterning method for a touch panel and touch panel thereof

#13
20190027266
2019-01-24

Printed circuit surface finish, method of use, and assemblies made therefrom

#14
20190008037
2019-01-03

Printed circuit board and electronic component

#15
20180023197
2018-01-25

Pretreatment agent for electroless plating, and pretreatment and production of printed wiring board using same

#16
20180020546
2018-01-18

Method of manufacturing flexible electronic circuits having conformal material coatings

#17
20170060282
2017-03-02

METHOD OF SELECTIVELY ETCHING A METAL LAYER FROM A MICROSTRUCTURE

#18
20160137860
2016-05-19

Hot melt compositions with improved etch resistance

#19
20160066430
2016-03-03

Hot melt compositions with improved etch resistance

#20
20150083602
2015-03-26

Method for manufacture of fine line circuitry

#21
20150053643
2015-02-26

Hot melt compositions with improved etch resistance

#22
20140314967
2014-10-23

Aqueous phase pore sealing agent imroving PCB coating oxidation-resistant and corrosion-resistant properties and method for using same

#23
20140178571
2014-06-26

Method for producing a resin substrate having a metal film pattern formed thereon

#24
20140021169
2014-01-23

Polyimide-containing layer and method for etching polyimide-containing layer

#25
20140000650
2014-01-02

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

#26
20130319971
2013-12-05

Flexible circuit electrode array and method of manufacturing the same

#27
20130207031
2013-08-15

Polymer etchant and method of using same

#28
20130057497
2013-03-07

TOUCH SCREEN, TRANSPARENT CIRCUIT BOARD FOR TOUCH SCREEN, AND METHOD FOR FABRICATING TOUCH SCREEN

#29
20120156482
2012-06-21

Polyimide film and process for producing polyimide film

#30
20120061623
2012-03-15

WATERBORNE CONDUCTIVE COMPOSITIONS

#31
20120043125
2012-02-23

CIRCUIT BOARDS, METHODS OF FORMING THE SAME AND SEMICONDUCTOR PACKAGES INCLUDING THE SAME

#32
20110076855
2011-03-31

Laminate and use thereof

#33
20110051387
2011-03-03

METHOD FOR ELECTROLESS NICKEL-PALLADIUM-GOLD PLATING, PLATED PRODUCT, PRINTED WIRING BOARD, INTERPOSER AND SEMICONDUCTOR APPARATUS

#34
20110020970
2011-01-27

Etching or plating process and resist ink

#35
20100330504
2010-12-30

Method for electroconductive pattern formation

#36
20100307801
2010-12-09

Multilayer ceramic substrate and manufacturing method thereof

#37
20100189974
2010-07-29

Metal-laminated polyimide substrate, and method for production thereof

#38
20100183824
2010-07-22

METHOD OF FABRICATING FLEXIBLE FILM

#39
20100149249
2010-06-17

SURFACE TREATMENT METHOD, CIRCUIT LINES FORMATION METHOD, CIRCUIT LINES FORMATION APPARATUS, AND PRINTED CIRCUIT BOARD FORMED THEREBY

#40
20100146777
2010-06-17

SURFACE TREATMENT METHOD, CIRCUIT LINES FORMATION METHOD, CIRCUIT LINES FORMATION APPARATUS, AND PRINTED CIRCUIT BOARD FORMED THEREBY

#41
20100096168
2010-04-22

ELECTRIC CONTACT AND METHOD FOR PRODUCING THE SAME AND CONNECTOR USING THE ELECTRIC CONTACTS

#42
20090314529
2009-12-24

AQUEOUS PRINTABLE ELECTRICAL CONDUCTORS (XINK)

#43
20090304911
2009-12-10

METHOD OF FORMING CIRCUITS ON CIRCUIT BOARD

#44
20090280339
2009-11-12

POLYIMIDE FILM, POLYIMIDE METAL LAMINATE USING SAME, AND METHOD FOR MANUFACTURING SAME

#45
20090219212
2009-09-03

Planar antenna and manufacturing method thereof

#46
20090146112
2009-06-11

COMPOSITE MATERIAL AND METHOD OF PRODUCING THE SAME

#47
20090129040
2009-05-21

Circuit board having power source

#48
20090071696
2009-03-19

Partially rigid flexible circuits and method of making same

#49
20090057270
2009-03-05

Etching processing method

#50
20090004382
2009-01-01

Method of electrolessly depositing metal on the walls of through-holes

#51
20080280029
2008-11-13

Surface treatment method for solder joint

#52
20080271912
2008-11-06

PRINTED CIRCUIT BOARD AND MANUFACTURING METHOD THEREOF

#53
20080245765
2008-10-09

Electrical contacts

#54
20080187672
2008-08-07

Method and Composition for Improving Adhesion of Organic Polymer Coatings with Copper Surface

#55
20080182025
2008-07-31

Circuit board and manufacturing method of the same

#56
20080172867
2008-07-24

METHOD OF MANUFACTURING MULTI-LAYERED FLEXIBLE PRINTED CIRCUIT BOARD

#57
20080053834
2008-03-06

Electroless plating method for resin surfaces

#58
20080052903
2008-03-06

Method of Forming Aluminum Based Alloy Wiring Circuit and Method of Forming Element Structure of Display Device

#59
20080047134
2008-02-28

METHOD OF MANUFACTURING FLEXIBLE PRINTED CIRCUIT BOARD

#60
20080006605
2008-01-10

Method of manufacturing a porous resin substrate having perforations and method of making a porous resin substrate including perforations having electrically conductive wall faces

#61
20070269591
2007-11-22

Pad Metallisation Process

#62
20070224346
2007-09-27

Polyimide substrate and method of manufacturing printed wiring board using the same

#63
20070151661
2007-07-05

ETCHED DIELECTRIC FILM IN HARD DISK DRIVES

#64
20070068700
2007-03-29

Electric contact and method for producing the same and connector using the electric contacts

#65
20070066090
2007-03-22

Wiring board, process for producing the same polyimide film for use in the wiring board, and etchant for use in the process

#66
20070039921
2007-02-22

Etching solutions and processes for manufacturing flexible wiring boards

#67
20070006983
2007-01-11

Method for producing fine circuit lines and conductive board

#68
20060270232
2006-11-30

Manufacturing method of printed wiring board as well as copper-clad laminate and treatment solutions used therefor

#69
20060249304
2006-11-09

Circuit board and process for producing the same

#70
20060223316
2006-10-05

Surface treatment method, circuit lines formation method, circuit lines formation apparatus, and printed circuit board formed thereby

#71
20060191869
2006-08-31

Method for roughening copper surfaces for bonding to substrates

#72
20060185163
2006-08-24

Method of manufacturing wiring board

#73
20060165877
2006-07-27

Method for forming inorganic thin film pattern on polyimide resin

#74
20060163989
2006-07-27

Blue color filter, and organic electroluminescent device using the same

#75
20060159854
2006-07-20

Method for forming inorganic thin film on polyimide resin and method for producing polyimide resin having reformed surface for forming inorganic thin film

#76
20060147744
2006-07-06

Conductive metal plated polyimide substrate and process for manufacturing the same

#77
20060134914
2006-06-22

Flexible circuits and method of making same

#78
20060127653
2006-06-15

Chemical etching of polycarbonate films and related applications

#79
20060013947
2006-01-19

Method for manufacturing wiring board

#80
20050277245
2005-12-15

Method for forming bump on electrode pad with use of double-layered film

#81
20050271828
2005-12-08

Wiring board and production method thereof, and semiconductor apparatus

#82
20050218110
2005-10-06

Method for manufacturing wiring substrate

#83
20050186404
2005-08-25

Etched polycarbonate films

#84
20050175773
2005-08-11

Metal/ceramic bonding member and method for producing same

#85
20050011856
2005-01-20

Method for making a multilayer module with high-density printed circuits