ISSN:
0032-3888
Keywords:
Chemistry
;
Chemical Engineering
Source:
Wiley InterScience Backfile Collection 1832-2000
Topics:
Chemistry and Pharmacology
,
Mechanical Engineering, Materials Science, Production Engineering, Mining and Metallurgy, Traffic Engineering, Precision Mechanics
,
Physics
Notes:
Polyimides and Polyamide-imides have a high thermal and dimensional stability, good properties, and resistance to attack by solvents. These features, along with their electrical properties, have led to their wide acceptance in the electronics industry. Specifically, Polyimide masks are superior to conventional resists during metal deposition, sputter etching, and chip soldering, for which high-temperature stability is essential. Such a mask is prepared by selectively etching the polyamide-imide with in organic solvent such as ethylenediamine. The reaction of ethylenediamine with polyamide-imides has been applied successfully in metallizing semiconductors by the lift-off method; also, polyamide-imides have been used as a reworkable protective coating for semiconductor modules.
Additional Material:
12 Ill.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1002/pen.760170607
