BS EN 61249-3-4:1999
Materials for interconnection structures. Sectional specification set for unreinforced base materials, clad and unclad (intended for flexible printed boards). Adhesive coated flexible polyimide film. Adhesive coated flexible polyimide film

Standard No.

BS EN 61249-3-4:1999

Release Date

1999

Published By

British Standards Institution (BSI)

Latest

BS EN 61249-3-4:1999

Replace

94/215572 DC-1994

Scope

This part of IEC 61249 gives requirements for flexible polyimide films coated on one side or both sides with acrylic or epoxide type adhesive for use in the fabrication of flexible printed wiring. Films coated on only one side are used as a coverlay or covercoat in the fabrication of flexible printed wiring. This coverlay or covercoat is also used to provide local support to areas subjected to mechanical or environmental stress. Films coated on both sides are used as bonding films in the fabrication of printed boards.

BS EN 61249-3-4:1999 history

• 1999 BS EN 61249-3-4:1999 Materials for interconnection structures. Sectional specification set for unreinforced base materials, clad and unclad (intended for flexible printed boards). Adhesive coated flexible polyimide film. Adhesive coated flexible polyimide film