Duy A Le

US Patent:

20150315715, Nov 5, 2015

Filed:

Dec 29, 2014

Appl. No.:

14/585021

Inventors:

- Cupertino CA, US
Masashige Tatebe - Kakogawa City, JP
Shi Hua Zhang - Wilmington DE, US
Michael W. Barnstead - Canton CT, US
Richard M. Bretherton - Portland OR, US
Takahiro Oshima - Tokyo, JP
Sean A. Backs - Belmont CA, US
Duy P. Le - San Francisco CA, US
Andrew J. Meschke - San Jose CA, US
Thomas Johannessen - Fjerdingby, NO

International Classification:

C25D 5/02
H05K 5/04

Abstract:

Manufacturing methods related to anodizing of metal parts are described. In particular, pre-anodizing and post-anodizing methods for forming a consistent and defect-free interface between metal and non-metal sections of a part are described. Methods involve preventing residues from various manufacturing processes from entering a gap or space at the interface between the metal and non-metal section of the part and that can disrupt subsequent anodizing and anodic film dyeing processes. In particular embodiments, methods involve forming a barrier layer or filler layer between the metal and non-metal sections. Portions of the barrier layer or filler layer can be removed prior to anodizing. The resultant part has a well-defined and uniform space between the metal and non-metal sections that is free from visual defects.