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CPC Subgroup Additional Only
H05K 2203/03

Metal processing

Full Title

Indexing scheme relating to apparatus or processes for manufacturing printed circuits covered by H05K3/00 > Metal processing

Filing statistics

CPC H05K 2203/03 belongs to the parent subclass H05K, which recorded 393,752 patent applications worldwide between 2013 and 2023. Annual filings grew from 26,893 in 2013 to 40,478 in 2023 (+51%), peaking at 44,441 applications in 2021. The most active applicants in class H05 are SAMSUNG ELECTRONICS COMPANY (9,981 applications), SAMSUNG DISPLAY (5,041 applications) and LG ELECTRONICS (4,742 applications).

Source: EPO PATSTAT, worldwide filings

12 direct subcodes

Child Classifications

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  • H05K 2203/0307 Providing micro- or nanometer scale roughness on a metal surface, e.g. by plating of nodules or dendrites
  • H05K 2203/0315 Oxidising metal
  • H05K 2203/0323 Working metal substrate or core, e.g. by etching, deforming
  • H05K 2203/033 Punching metal foil, e.g. solder foil
  • H05K 2203/0338 Transferring metal or conductive material other than a circuit pattern, e.g. bump, solder, printed component
  • H05K 2203/0346 Deburring, rounding, bevelling or smoothing conductor edges
  • H05K 2203/0353 Making conductive layer thin, e.g. by etching
  • H05K 2203/0361 Stripping a part of an upper metal layer to expose a lower metal layer, e.g. by etching or using a laser
  • H05K 2203/0369 Etching selective parts of a metal substrate through part of its thickness, e.g. using etch resist
  • H05K 2203/0376 Etching temporary metallic carrier substrate
  • H05K 2203/0384 Etch stop layer, i.e. a buried barrier layer for preventing etching of layers under the etch stop layer
  • H05K 2203/0392 Pretreatment of metal, e.g. before finish plating, etching

Top Applicants

Top 10 applicants by patent filingsfor class H05, 2013–2023, worldwide · Source: EPO PATSTAT

  1. SAMSUNG ELECTRONICS COMPANY KR 9,981
  2. SAMSUNG DISPLAY KR 5,041
  3. LG ELECTRONICS KR 4,742
  4. PHILIP MORRIS PRODUCTS CH 4,411
  5. PANASONIC INTELLECTUAL PROPERTY JP 3,915
  6. PANASONIC INTELLECTUAL PROPERTY 3,471
  7. SAMSUNG ELECTRO-MECHANICS COMPANY KR 3,210
  8. MURATA MANUFACTURING COMPANY JP 3,191
  9. FUJI JP 2,987
  10. SIGNIFY HOLDING NL 2,907