Browse Prior Art Database

Dynamic Tape Peel Tester

IP.com Disclosure Number: IPCOM000035354D
Original Publication Date: 1989-Jul-01
Included in the Prior Art Database: 2005-Jan-28
Document File: 2 page(s) / 48K

Publishing Venue

IBM

Related People

Foote, G: AUTHOR [+2]

Abstract

The peel strength of the tape-to-carrier existing in SMT (surface mounted technology) component carrier tapes can be determined precisely prior to circuit board application with the portable tool described in this article. Peel rates are controllable and can be set to duplicate factory tool rates of operation.

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Dynamic Tape Peel Tester

The peel strength of the tape-to-carrier existing in SMT (surface mounted technology) component carrier tapes can be determined precisely prior to circuit board application with the portable tool described in this article. Peel rates are controllable and can be set to duplicate factory tool rates of operation.

The typical SMT tape carrier is available on a reel and is used to feed SMT components, contained in pockets thereon, onto circuit boards for surface attachment. A cover tape is bonded to the carrier, which comes in various sizes, to allow proper retention of the components. Excessive adhesion of the cover tape can produce tape tearing while inadequate adhesion can lead to inadvertent fall-out of components.

The disclosed dynamic tester, shown in the figure, is portable and comprises a force gauge (load cell 1, a read-out oscilloscope (not shown), a revolving drum 2, a variable speed motor 3, and a motor speed control box 4. The carrier tape is attached to the load cell with double-sided adhesive tape, and a strip of cove tape 5 is attached to the periphery of the drum 2. When the drum is activated, the tape is peeled off the carrier, the force being registered by the load cell, and recorded on the oscilloscope.

The disclosed tester is capable of measuring peel strengths (tape to carrier) at dynamic speeds of from 2.5 inches per second to 40 inches per second.

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