Global patent index - EP 1057080 A1

EP 1057080 A1 2000-12-06 - RESIST STRIPPING PROCESS

Title (en)

RESIST STRIPPING PROCESS

Title (de)

RESISTENTFERNUNGSVERFAHREN

Title (fr)

PROCEDE DE DECAPAGE DE RESIST

Publication

EP 1057080 A1 (EN)

Application

EP 99905603 A

Priority

  • US 9902160 W
  • US 3115498 A

Abstract (en)

[origin: WO9944101A1] A process for removing patterned resist from the surface of a substrate during manufacture of printed wiring boards is disclosed. The process includes the steps of contacting the patterned resist with a stripping solution containing an alkalinity source as well as a source of ammonium ions. The stripping solution is characterized in that it does not contain volatile organic compounds (VOCs).

IPC 1-7 (main, further and additional classification)

G03F 7/42

IPC 8 full level (invention and additional information)

G03F 7/42 (2006.01); H05K 3/06 (2006.01); H05K 3/18 (2006.01); H05K 3/00 (2006.01)

CPC (invention and additional information)

G03F 7/425 (2013.01); H05K 3/0073 (2013.01)

Citation (search report)

See references of WO 9944101A1

Designated contracting state (EPC)

AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE

EPO simple patent family

WO 9944101 A1 19990902; CN 1129036 C 20031126; CN 1298496 A 20010606; EP 1057080 A1 20001206; JP 2002505448 A 20020219; TW 407449 B 20001001

INPADOC legal status

2003-08-13 [18D] DEEMED TO BE WITHDRAWN

- Ref Legal Event Code: 18D

- Effective date: 20030128

2002-01-23 [17Q] FIRST EXAMINATION REPORT

- Ref Legal Event Code: 17Q

- Effective date: 20011212

2000-12-06 [17P] REQUEST FOR EXAMINATION FILED

- Ref Legal Event Code: 17P

- Effective date: 20000828

2000-12-06 [AK] DESIGNATED CONTRACTING STATES:

- Ref Legal Event Code: AK

- Designated State(s): AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE