EP 1105248 A1 20010613 - LASER DRILLING OF HOLES IN MATERIALS
Title (en)
LASER DRILLING OF HOLES IN MATERIALS
Title (de)
LASERBOHREN VON LÖCHERN IN MATERIALEN
Title (fr)
PER AGE PAR LASER DE TROUS DANS DES MATERIAUX
Publication
Application
Priority
- GB 9901875 W 19990614
- GB 9812725 A 19980613
Abstract (en)
[origin: WO9965639A1] The invention discloses methods and apparatus (1) for laser drilling of one or more holes in one or more materials (9) using a laser radiation source (2) emitting radiation having a wavelength or wavelengths, where at least some of the materials (9) have been treated to change their absorption depths at the wavelength or wavelengths of the radiation. The material or materials (9) may be treated by adding one or more dopants thereto. The material or materials (9) may comprise dielectric materials, and may be used in the construction of electrical interconnection packages such as printed circuit or wiring boards, ball grid arrays or multichip modules. The quality of the holes produced is superior so that produced when drilling undoped material with the same laser radiation source.
IPC 1-7
IPC 8 full level
B23K 26/00 (2006.01); B23K 26/18 (2006.01); B23K 26/38 (2006.01); B41J 2/16 (2006.01); B41J 2/44 (2006.01); H05K 3/00 (2006.01); H05K 1/09 (2006.01)
CPC (source: EP)
B23K 26/18 (2013.01); B23K 26/382 (2015.10); B23K 26/40 (2013.01); B41J 2/16 (2013.01); B41J 2/1634 (2013.01); H05K 3/0029 (2013.01); H05K 3/0032 (2013.01); B23K 2101/35 (2018.07); B23K 2103/08 (2018.07); B23K 2103/10 (2018.07); B23K 2103/12 (2018.07); B23K 2103/16 (2018.07); B23K 2103/42 (2018.07); B23K 2103/50 (2018.07); B23K 2103/52 (2018.07); H05K 1/095 (2013.01); H05K 3/0035 (2013.01); H05K 2201/0112 (2013.01)
Citation (search report)
See references of WO 9965639A1
Designated contracting state (EPC)
AT CH DE ES FR GB IT LI SE
DOCDB simple family (publication)
WO 9965639 A1 19991223; EP 1105248 A1 20010613; GB 9812725 D0 19980812; JP 2002518181 A 20020625
DOCDB simple family (application)
GB 9901875 W 19990614; EP 99957032 A 19990614; GB 9812725 A 19980613; JP 2000554501 A 19990614