Title :
Design of epoxy resins for UV laser cure
Author_Institution :
Corporate Technol., Siemens AG, Munchen, Germany
Abstract :
Epoxy resins are known to be curable by UV initiated cationic living polymerization. The monochromatic UV light from scanning lasers bears some peculiarities, especially when defined structures are to be cured. Different types of UV lasers have been examined to cure resin layers of some ten micrometers thickness. Several ingredients of the resin formulations have been developed and screened for suitability in microelectronic applications similar to micro laser stereolithography. Among those were photoinitiators, sensitizers, polyols and new epoxy compounds.
Keywords :
adhesives; conducting polymers; laser materials processing; photochemistry; polymer blends; polymerisation; rapid prototyping (industrial); ultraviolet radiation effects; UV laser cure; adhesion; cationic living polymerization; epoxy resins design; laser direct writing; laser stereolithography; locally defined structures; microelectronic applications; photoinitiators; polyestertriol; polyether network; polyols; resin formulations; sensitizers; Absorption; Argon; Chemical lasers; Epoxy resins; Lamps; Laser modes; Microelectronics; Optical design; Polymers; Ring lasers;
Conference_Titel :
Polymers and Adhesives in Microelectronics and Photonics, 2002. POLYTRONIC 2002. 2nd International IEEE Conference on
Print_ISBN :
0-7803-7567-X
DOI :
10.1109/POLYTR.2002.1020187
