Moisture transport studies on newly developed aromatic and aromatic/aliphatic copolyester thin films

✍ Scribed by Frank F. Shi; James Economy

• Publisher: John Wiley and Sons
• Year: 1998
• Tongue: English
• Weight: 285 KB
• Volume: 36
• Category: Article
• ISSN: 0887-6266
• DOI: 10.1002/(sici)1099-0488(19980430)36:6<1025::aid-polb11>3.0.co;2-8

✦ Synopsis

In polymers for microelectronics applications, moisture is known to have a deleterious effect upon device reliability. In this paper, the moisture transport behaviors of a newly developed family of all-aromatic and aromatic/aliphatic copolyester thermosetting films were described. The moisture uptake as a function of temperature, relative humidity, sample thickness, and processing conditions were presented via conjugate moisture sorption tests. 1 It was found that the post curing near but below T g resulted in an increase in both total moisture uptake and diffusion coefficient due to the effect of physical aging and the generation of sample defect volume.