New MIL-STD-750 Revision F changes format to this Popular Standard for Test Methods for Semiconductor Devices

The new MIL-STD-750 Revision F, “Test Methods for Semiconductor Devices,” has just been released.  Not only is this a new revision level for this standard, but the format has also changed with the addition of five new parts.  This is one of the most frequently ordered Military Standards here at Document Center Inc. — a real staple of the Semiconductor Industry.

This standard establishes uniform methods and procedures for testing semiconductor devices suitable for use within Military and Aerospace electronic systems. The methods and procedures in the various parts of this standard cover basic environmental, physical, and electrical tests to determine resistance to deleterious effects of natural elements and conditions surrounding military and space operations.

For the purpose of MIL-STD-750F, the term “devices” includes such items as transistors, diodes, voltage regulators, rectifiers, tunnel diodes, and other related parts. This standard is intended to apply only to semiconductor devices. The test methods and procedures described in the various parts of this multipart test method standard have been prepared to serve several purposes:

a. To specify suitable conditions obtainable in the laboratory that give test results equivalent to the actual service conditions existing in the field and to obtain reproducibility of the results of tests. The test methods described by this standard are not to be interpreted as an exact and conclusive representation of actual service operation in any one geographic location since it is known that the only true test for operation in a specific location is an actual service test at that point.

b. To describe, in a series of standards, all of the test methods of a similar character which now appear in the various joint-services semiconductor device specifications so that these test methods may be kept uniform and thus result in conservation of equipment, man-hours, and testing facilities. In achieving this objective, it is necessary to make each of the general test methods adaptable to a broad range of devices.

c. The test methods described by this standard for environmental, physical, and electrical testing of semiconductor devices shall also apply, when applicable, to parts not covered by an approved military sheet-form standard, specification sheet, or drawing.

MIL-STD-750 is now divided into 6 parts:

MIL-STD-750, Revision F, “Test Methods for Semiconductor Devices,” an overview document.

MIL-STD-750-1, Environmental Test Methods for Semiconductor Devices Part 1: Test Methods 1000 through 1999,

MIL-STD-750-2, Mechanical Test Methods for Semiconductor Devices Part 2: Test Methods 2001 through 2999

MIL-STD-750-3, Transistor Electrical Test Methods for Semiconductor Devices Part 3: Test Methods 3000 through 3999

MIL-STD-750-4, Diode Electrical Test Methods for Semiconductor Devices Part 4: Test Methods 4000 through 4999

MIL-STD-750-5, High Reliability Space Application Test Methods for Semiconductor Devices Part 5: Test Methods 5000 through 5999

Documentation and process conversion necessary to comply with this revision shall be completed by 3 July 2012.  The margins of the standard are marked with vertical lines to indicate where changes from the previous issue were made. This was done as a convenience only and the Government assumes no liability whatsoever for any inaccuracies in these notations.

MIL-STD-750, including all the new revisions plus obsolete editions as well, is available for purchase from Document Center Inc.  Use our website, www.document-center.com, or phone us (650-591-7600), fax us (650-591-7617) or email us (info@document-center.com).  We can help you keep up with the rapidly changing world of compliance information.

New ASTM E691 2011 Edition, Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method

ASTM E691-11, “Standard Practice for Conducting an Interlaboratory Study to Determine the Precision of a Test Method,” has just been released.  This practice describes the techniques for planning, conducting, analyzing, and treating the results of an interlaboratory study (ILS) of a test method. The statistical techniques described in this practice provide adequate information for formulating the precision statement of a test method.

ASTM E691 does not concern itself with the development of test methods but rather with gathering the information needed for a test method precision statement after the development stage has been successfully completed. The data obtained in the interlaboratory study may indicate, however, that further effort is needed to improve the test method.

Since the primary purpose of this practice is the development of the information needed for a precision statement, the experimental design in this practice may not be optimum for evaluating materials, apparatus, or individual laboratories.

This practice is concerned exclusively with test methods which yield a single numerical figure as the test result, although the single figure may be the outcome of a calculation from a set of measurements.

ASTM regulations require precision statements in all test methods in terms of repeatability and reproducibility. This practice may be used in obtaining the needed information as simply as possible. This information may then be used to prepare a precision statement in accordance with ASTM E177, “Standard Practice for Use of the Terms Precision and Bias in ASTM Test Methods.”

All current ASTM standards, and many obsolete ones, are available from Document Center Inc. at our website, www.document-center.com.  Or consider contacting us by phone (650-591-7600), fax (650-591-7617) or email (info@document-center.com).  Our staff is available from 6 am to 5 pm Monday through Friday California time.