ASTM-F459 Standard Test Methods for Measuring Pull Strength of Microelectronic Wire Bonds

ASTM-F459 - 2013 R18 EDITION - CURRENT
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Standard Test Methods for Measuring Pull Strength of Microelectronic Wire Bonds
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Scope

1.1 These test methods cover tests to determine the pull strength of a series of wire bonds. Instructions are provided to modify the methods for use as a referee method. The methods can be used for wire bonds made with wire having a diameter of from 0.0007 to 0.003 in. (18 to 76 μm).

Note 1: Common usage at the present time considers the term “wire bond” to include the entire interconnection: both welds and the intervening wire span.

1.2 These test methods can be used only when the loop height of the wire bond is large enough to allow a suitable hook for pulling (see Fig. 1) to be placed under the wire.

FIG. 1 Suggested Configuration for a Pulling Hook

 Suggested Configuration for a Pulling Hook Suggested Configuration for a Pulling Hook

1.3 The precision of these methods has been evaluated for aluminum ultra-sonic wedge bonds; however, these methods can be used for gold and copper wedge or ball bonds.2

1.4 These methods are destructive. They are appropriate for use in process development or, with a proper sampling plan, for process control or quality assurance.

1.5 A nondestructive procedure is described in Practice F458.

1.6 The values in SI units are to be regarded as standard.

1.7 This standard does not purport to address all of the safety concerns, if any, associated with its use. It is the responsibility of the user of this standard to establish appropriate safety, health, and environmental practices and determine the applicability of regulatory limitations prior to use.

1.8 This international standard was developed in accordance with internationally recognized principles on standardization established in the Decision on Principles for the Development of International Standards, Guides and Recommendations issued by the World Trade Organization Technical Barriers to Trade (TBT) Committee.

Keywords

microelectronic wire bonds; pull strength; wire bonds;; ICS Number Code 29.120.20 (Connecting devices)

To find similar documents by ASTM Volume:

10.04 (Electronics; Declarable Substances in Materials; 3D Imaging Systems)

To find similar documents by classification:

29.120.20 (Connecting devices)

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Document Number

ASTM-F459-13(2018)

Revision Level

2013 R18 EDITION

Status

Current

Modification Type

Reapproval

Publication Date

March 1, 2018

Document Type

Test Method

Page Count

5 pages

Committee Number

F01.03