MIL- STD-883F 2004 TEST METHOD STANDARD MICROCIRCUITS - 第286页
MIL-STD-883F METHOD 2014 15 November 1974 2 This page i ntenti onally lef t blank
MIL-STD-883F
METHOD 2014
15 November 1974
1
METHOD 2014
INTERNAL VISUAL AND MECHANICAL
1. PURPOSE
. The purpose of this examination is to verify that internal materials, design and construction are in
accordance with the applicable acquisition document. This test is destructive and would normally be employed on a
sampling basis in qualification or quality conformance inspection of a specific device type to demonstrate compliance with
the acquisition document and to reveal any undocumented changes to the part type.
2. APPARATUS
. Equipment used in this examination shall be capable of demonstrating conformance to the
requirements of the applicable acquisition document and shall include optical equipment capable of magnification sufficient
to verify all structural features of the devices.
3. PROCEDURE
. The device shall be examined under a sufficient magnification to verify that all the internal materials,
design and construction are in accordance with the requirements of the applicable design documentation or other specific
requirements (see 4). Specimens of constructions which do not contain an internal cavity (e.g., encapsulated or embedded
devices) or those which would experience destruction of internal features of interest as a result of opening, may be obtained
by interception during manufacturing prior to encapsulation. Specimens of constructions with an internal cavity shall be
selected from devices which have completed all manufacturing operations and they shall be delidded or opened or both
taking care to minimize damage to the areas to be inspected. When specified by the applicable acquisition document, the
interception procedure may be used to obtain specimens of constructions with an internal cavity.
3.1 Photographs of die topography and intraconnection pattern
. When specified, an enlarged color photograph or
transparency shall be made showing the topography of elements formed on the die or substrate and the metallization
pattern. This photograph shall be at a minimum magnification of 80X except that if this results in a photograph larger than 8
inches x 10 inches, the magnification may be reduced to accommodate an 8 inches x 10 inches view.
3.2 Failure criteria
. Devices which fail to meet the detailed requirements for materials, design and construction shall
constitute a failure.
4. SUMMARY
. The following details shall be specified in the applicable acquisition document:
a. Any applicable requirements for materials, design and construction.
b. Allowance for interception procedure of internal cavity devices, when applicable (see 3).
c. Requirement for photographic record, if applicable (see 3.1), and disposition of photographs.
MIL-STD-883F
METHOD 2014
15 November 1974
2
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MIL-STD-883F
METHOD 2015.13
18 December 2000
1
METHOD 2015.13
RESISTANCE TO SOLVENTS
1. PURPOSE
. The purpose of this test is to verify that the markings will not become illegible on the component parts
when subjected to solvents. The solvents will not cause deleterious, mechanical or electrical damage, or deterioration of the
materials or finishes.
1.1 Formulation of solvents
. The formulation of solvents herein is considered typical and representative of the desired
stringency as far as the usual coatings and markings are concerned. Many available solvents which could be used are
either not sufficiently active, too stringent, or even dangerous to humans when in direct contact or when the fumes are
inhaled.
1.2 Check for conflicts
. When this test is referenced, care should be exercised to assure that conflicting requirements, as
far as the properties of the specified finishes and markings are concerned, are not invoked.
2. MATERIALS
.
2.1 Solvent solutions
. The solvent solutions used in this test shall consist of the following: 1/
a. At 20-30°C a mixture consisting of the following:
(1) One part by volume of an aliphatic alcohol and/or aliphatic ester, USP grade or better.
(2) Three parts by volume of mineral spirits in accordance with A-A-2904, type II, previously designated
as TT-T-291, type II, grade A, or three parts by volume of a mixture of 80 percent by volume of
kerosene and 20 percent by volume of ethylbenzene.
b. A semiaqueous or nonaqueous based organic solvent e.g., a terpene or heterocyclic compound. 2
/
c. This solvent has been deleted. When a suitable replacement for this solvent has been found, it will be added as
solution c.
d. At 63°C to 70°C, a mixture consisting of the following: 1
/
(1) 42 parts by volume of deionized water.
(2) 1 part by volume of propylene glycol monomethyl ether.
(3) 1 part by volume of monoethanolamine or equivalent inorganic base to achieve the same pH.
2.1.1 Solvent solutions, safety aspects
. Solvent solutions listed in a through d above exhibit some potential for health and
safety hazards. The following safety precautions should be observed:
a. Avoid contact with eyes.
b. Avoid prolonged contact with skin.
c. Provide adequate ventilation.
d. Avoid open flame.
e. Avoid contact with very hot surfaces.
1
/ Normal safety precautions for handling these solutions (e.g., same as those for diluted ammonium hydroxide) based
on O.S.H.A rules for Monoethanolamine or other precautionary measures with regard to flash point, toxicity, etc.
2
/ Or any EPA demonstrated equivalent. When using EPA approved alternative solutions for test, the device
manufacturer should consider the recommended temperature for cleaning specified by the solvent supplier.