PHYSICAL, MECHANICAL & ASSEMBLY, TESTING

Hermeticity testing techniques: Seal Test, Fine & Gross Leak in EEE Parts

Posted by Francisco Javier Aparicio Rebollo
On May 2, 2021
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The purpose of the seal test is to determine the effectiveness of the sealing of components with internal cavities, i.e. to determine their hermeticity. Defective sealing may permit the entrance of contaminants, thus reducing the effective life and reliability of devices.

ACTIVES, EEE Components, ENDURANCE, ENVIRONMENTAL & RADIATION, PHYSICAL, MECHANICAL & ASSEMBLY, TESTING

Hermetic Packages in Space Environment

Posted by Javier Alejandro de la Ossa Fernández
On February 27, 2020
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The general specification for hybrid microcircuits (MIL-PRF-38534) details the qualification and testing requirements for non-hermetic packages for military and space applications, and the MIL-PRF-38535 proposed class Y monolithic microcircuits for non-hermetic space level.

INSPECTION, ELECTRICAL & VERIFICATION, TESTING

Voids on sealing area.

Posted by Pedro CARABIAS LÓPEZ
On February 10, 2020
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Preliminary observation during the External Visual inspection about possible sealing area defects is not enough to confirm the fault. Additional criteria are provided in this post

INSPECTION, ELECTRICAL & VERIFICATION, PHYSICAL, MECHANICAL & ASSEMBLY

RGA (Residual Gas Analysis) STATISTICS

Posted by Antonio Rodríguez Arenas
On January 2, 2020
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Alter Technology has reviewed and analyzed the RGA (Residual Gas Analysis) registered results from 2009 to mid 2016 on 563 parts tested.

INSPECTION, ELECTRICAL & VERIFICATION, PHYSICAL, MECHANICAL & ASSEMBLY

RGA: Fluorocarbon Gases Limits Criteria Acceptance

Posted by Antonio Rodríguez Arenas
On December 20, 2019
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Fluorocarbon gases are typically detected when the Residual Gas Analysis (RGA) is performed on optocouplers.

ACTIVES, EEE Components, SPECIFICATIONS / QPLs

Review of main changes in generic specification MIL-PRF-55310 REV. F

Posted by José Francisco Largaespada
On July 19, 2019
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Space standards (such as ESCC and MIL standards) have helped throughout the years to develop the industry and to achieve de mission goals. Standards improve the competitiveness, efficiency and knowledge transfer within space business. However, standards are not frozen documents, but rather they must change and adapt to the current requirements of the industry and the new developments and knowledge gathered during all the years of space missions.

ACTIVES, EEE Components, SPECIFICATIONS / QPLs

New Semicoa Ceramic Package for Surface Mounting of JANS diodes

Posted by Emilio Cano García
On April 25, 2019
0

Semicoa has implemented a new ceramic surface mount package for their qualified rectifier diodes from MIL-PRF-19500/477 Semicoa is a supplier that design and development of bipolar power devices for high-reliability military, defense, aerospace, and space applications for 50 years.