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ASTM F1995-12
Standard Test Method for Determining the Shear Force of a Surface Mount Device (SMD) in a Membrane Switch
2 стр.
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Разработчик:
Зарубежные/ASTM
ICS:
31.220.20 Switches / Переключатели
Сборник (ASTM):
10.04 Electronics; Declarable Substances in Materials; 3D Imaging Systems; Additive Manufacturing Technologies / Электроника; Декларируемые вещества в материалах; Системы 3D-визуализации; Аддитивные технологии производства
Тематика:
Electronics
Описание
Значение и использование

The different combinations of SMD types, attachment medias, circuit substrates, plating options, and process variation can account for significant variation in test outcome.

The SMD shear strength test is useful to manufacturers and users for determining the bond strength of the component to the membrane switch circuit.

Область применения

1.1 This test method covers the determination of the shear integrity of materials and procedures used to attach surface mount devices (SMD) to a membrane switch circuit.

1.2 This test method is typically used to indicate the sufficient cure of conductive adhesive or underfill, or both. In general, this test method should be used prior to encapsulant. This test may also be used to demonstrate the Shear Force with encapsulation.

1.3 The values stated in SI units are to be regarded as standard. No other units of measurement are included in this standard.

1.4 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 and health practices and determine the applicability of regulatory limitations prior to use.

Ключевые слова:
adhesion; bond strength; LED; membrane switch; shear force; SMD; surface mount; Bond strength; Electronic materials/applications; Membrane switches; Surface mount device (SMD)