Patent EP0197323A2 successfully refreshed from Google Patents.
← Back to Patent Explorer
EP0197323A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Printed circuits

Assignee: Bayer AG
•
Filing: 1986-03-08
•
Granted: —
•
Expires: 2006-03-08
📄 Original PDF 🌐 Google Patents 🔄 Sync Now

Abstract

Abstract Translated from German @ Elektrische Leiterplatten bestehend im wesentlichen aus dem Basismaterial und dem naßchemisch unter Verwendung von Aktivatorsystemen, nach den Prinzipien der Semi-oder Volladditivtechnik aufgebrachten Leiterbild, dadurch gekennzeichnet, daß die Aktivatoren fein verteilte Metalle oder anorganische ionogene Verbindungen von Elementen der 1. oder 8. Nebengruppe des periodischen Systems sind und daß die Oberfläche des Basismaterials charakterisiert ist durch a) ein flächenbezogenes spezifisches Gesamtporenvolumen von 0,015-0,045 dm 3 /m 2 b) einen mittleren Porendurchmesser von 0,05-12,0 µm und c) eine mittlere Porentiefe von 0,05-4,0 µm. @ Electrical circuit boards consisting essentially of the base material and the wet-chemical applied activator systems, according to the principles of semi or full additive technology, characterized in that the activators finely divided metals or inorganic ionic compounds of elements of the 1st or 8th subgroup of the periodic system and that the surface of the base material is characterized by a) an area-related specific total pore volume of 0.015-0.045 dm 3 / m 2 b) an average pore diameter of 0.05-12.0 microns and c) an average pore depth of 0.05-4.0 µm.

Inventors

  • 👤 Kirkor Dr. Sirinyan
  • 👤 Gerhard Dieter Dr. Wolf
  • 👤 Ulrich Dr. Von Gizycki
  • 👤 Rudolf Dr. Merten

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-11-09 18:06
CPC Classifications
H; H05; H05K; H05K3/00; H05K3/38; H05K3/381; H05K3/10; H05K3/18; H05K3/181; H05K2203/00; H05K2203/02; H05K2203/025; H05K2203/11; H05K2203/1152; H05K3/108; H05K3/182; H05K3/184

Claims Analysis

Total Claims: 0
No claims parsed yet. Click Sync Now above to re-index claims from Google Patents.

References Cited (Backward Citations)

No citation records indexed.

USPTO Annuity & Maintenance Windows

Maintenance schedule is calculated for granted US utility patents.

Assigned Categories & Tags

No categories assigned to this patent yet.

Assign Category Tag