A novel absorptive thin film design for laser welding in optoelectronic device capsulation

Shaoji Jiang; Weiduo Li; Hezhou Wang

doi:10.1117/12.579698

13 January 2005 A novel absorptive thin film design for laser welding in optoelectronic device capsulation

Shaoji Jiang, Weiduo Li, Hezhou Wang

Author Affiliations +

Proceedings Volume 5629, Lasers in Material Processing and Manufacturing II; (2005) https://doi.org/10.1117/12.579698
Event: Photonics Asia, 2004, Beijing, China

Abstract

In this paper, a kind of absorptive thin film, for the first time, was used in laser welding of SiO₂, Si and L_iN_bO₃. This absorptive thin film of three-layer metal-dielectric-metal structure is designed for further reducing the high reflectance of the Nd:YAG laser beam in the surface of the tin layer that is utilized as solder between the transparent parent materials. The actual absorption exceeds 99%. This combination of absorber and solder transformed the laser energy into heat effectively and decreased the minimum necessary incident laser power transmitting through the transparent parent materials. As a result, the damage of the parent materials, which is suffered from laser transmission, is avoided; on the other hand, the laser power is of full utilization and saved.

Citation Download Citation

Shaoji Jiang, Weiduo Li, and Hezhou Wang "A novel absorptive thin film design for laser welding in optoelectronic device capsulation", Proc. SPIE 5629, Lasers in Material Processing and Manufacturing II, (13 January 2005); https://doi.org/10.1117/12.579698

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

;

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE