Investigation into transient characteristics of post-welding shift for opto-electronic pigtail package

Author

Yiu, C.H. ; Cheung, Y.M.

Author_Institution

ASM Assembly Autom., Hong Kong, China

fYear

2005

fDate

31 May-3 June 2005

Firstpage

259

Abstract

We study transient post-welding shift (PWS) with experiment and simulation. Measurement of PWS with non-contact displacement sensor reveals that a typical laser welding of TO-can pigtail package involves transient PWS with multiple characteristic time scales. Finite element modeling (FEM) of a three-dimensional structure with thermo-mechanical coupling helps us visualize the dynamics of the miniscule PWS. This study gives a better understanding on the physical process of transient PWS.

Keywords

displacement measurement; electronics packaging; finite element analysis; integrated circuit reliability; integrated optoelectronics; laser beam welding; sensors; thermomechanical treatment; 3D structure; FEM; PWS; finite element model; laser welding; noncontact displacement sensor; optoelectronic pigtail package; post-welding shift; thermo-mechanical coupling; transient characteristic; Displacement measurement; Finite element methods; Laser modes; Laser theory; Packaging; Sensor phenomena and characterization; Thermomechanical processes; Time measurement; Visualization; Welding;

fLanguage

English

Publisher

ieee

Conference_Titel

Electronic Components and Technology Conference, 2005. Proceedings. 55th

ISSN

0569-5503

Print_ISBN

0-7803-8907-7

Type

conf

DOI

10.1109/ECTC.2005.1441276

Filename

1441276