Tech Articles

DoEEEt is not only a Hi-Rel EEE components database, doEEEt links them with related documentation, activities and laboratory testing

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What’s new in doEEEt?

doEEEt Media Group
July 22, 2021
0
Find out about the improvements we have made in doEEEt: changes in the detail page, changes in the menu, new features, improvements in navigation.
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OPTOELECTRONIC

NON-STANDARD TESTING

doEEEt Media Group
July 8, 2021
0
We develop special setups to do non-standard testing: Thermal Vacuum, Ambient Cycling and Custom developments for testing (power lasers, temp sensors).
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OPTOELECTRONIC

OPTOELECTRONICS

doEEEt Media Group
July 7, 2021
0
Know all the successful cases in Optoelectronic in Alter Technology Laboratories and keep updated about everything we can do for your project
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TID TEST

TID Irradiation Testing for SMALL SATS

doEEEt Media Group
July 6, 2021
0
To perform a TID irradiation test on Small Sats, including any spacecraft destined for space, it is necessary to focus on the different standards and to do it according to those in which it has been d...
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High Power Lasers Screening Test

High power lasers screening test

Monica Rodriguez
July 5, 2021
0
In this success case, we present two different challenges we had to face to meet the requirements of power laser users: High power lasers (30watts in this case) require specific test setups and imp...
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Testing Methods EEE Parts

Dedicated irradiators and facilities for material studies

doEEEt Media Group
February 13, 2020
0
Space is a harsh environment due to vacuum, UV, temperature, vibration and radiation…etc. Before landing a space vehicle, devices and materials have to be tested at ground level in order to estimate the effect of all these parameters to know about irradiators.
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Constructional Analysis

Constructional Analysis in Microsection Inspection

Mari Carmen López
July 23, 2019
0
Cross-section analysis is a very useful way of determining the construction and material composition of electronic devices. The FP device is potted in epoxy resin. After curing, the sample is sequentially grinded up to reach the plane of interest. Then, the specimen is subjected to several polishing steps to achieve a high-quality surface to be analyzed by metallographic microscopy.
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Electrothermal events in crimped connectors

What does Electrothermal events in Crimped Connectors refer to?

Francisco Javier Aparicio Rebollo
February 21, 2021
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Electrothermal events. Electrothermal event refers to abnormal temperature increase leading to malfunction or catastrophic fails. The high temperature reached during such event activates or initiates some of the failure mechanism explained before, such as the growth of insulation oxide layers and outgassing processes responsible for organic contamination. Besides the formation of nonconductive layers at the contact interface, high temperature can also cause to the degradation of plastic insulators and contribute to multiple short circuit conditions.
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Thermoreflectance Thermal Imaging (TTI)

Thermoreflectance Thermal Imaging, understanding the use

Francisco Javier Aparicio Rebollo
October 11, 2020
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Submicrometric-nanometric objects nowadays present in the design of integrated circuits induce singular heat transport phenomena leading to the formation of hot-spots or strong temperature gradients at specific focal points, which compromises the suitable operation and reliability of microelectronic systems and can potentially decrease the lifetime.
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Quality Assurance and Safety at a TID Radiation test laboratory

Quality Assurance and Safety at a TID Radiation test laboratory

doEEEt Media Group
February 13, 2020
0
The Total Ionizing Dose (TID) radiation test on EEE parts involves a number of variables and processes which must be kept under control to ensure correct test execution and compliance with the used test method. From the test plan definition to the test report issue, the proper methodology needs to be put in place.
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RFID

What is RFID? How RFID works?

doEEEt Media Group
May 27, 2020
0
RFID is a technology which works on radio frequency and it is used for the auto-identification for the different object. The RFID system mainly consists of two parts.
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NEW SPACE

Qualified components, Enhanced components, Automotive parts and COTS are part of doEEEt.com. Compare all different scenarios and technical information within the platform in order to help you choosing the proper components and strategy for your Space Application.

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  • doEEEt-EEE componentes

Find in doEEEt any component included in your design

doEEEt.com is a web portal that allows you find within a database of more than 17 million components the exact solution for your need. The first database of space qualified hi rel components is now at your service.

  • Access to technical information.
  • Access to procurement information: prices, lead times…
  • Get quotations from all different manufacturers.
  • Qualification activities applicable.
  • Access to specifications, test reports, radiation information.
  • Access to available stocks.
  • DCL manager to manage your procurements.
  • Comparison of scenarios: Qualified vs. Automotive vs. COTS.

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Documents and specifications

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EEE Components Digital Library

IR SOURCES THERMAL VACUUM CYCLING CHARACTERIZATION

IR sources thermal vacuum cycling characterization

Alejandro López Moya
July 19, 2021
0
Every time a component is tested in extreme temperature conditions, it becomes a challenge to design a reliable test setup. If in addition, components must be in vacuum conditions and electro-optical characterization is required at different temperatures, complexity increases exponentially.
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Lasers Endurance Characterization In Vacuum Conditions

Lasers endurance characterization in vacuum conditions

Alejandro López Moya
July 6, 2021
0
In this success case, we present a complete Lot Acceptance Test (LAT) sequence that involves a high volume of tests (Mechanical, Environmental, Radiation, Assembly, ESD,..). But, on this occasion, the most tricky test to carry out was the Endurance test, where 12 lasers from different wavelengths (NIR, SWIR1, and SWIR3, from 350nm to 5um) were powered at their nominal current during 1000 hours while in vacuum conditions.
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High Power Lasers Screening Test

High power lasers screening test

Monica Rodriguez
July 5, 2021
0
In this success case, we present two different challenges we had to face to meet the requirements of power laser users: High power lasers (30watts in this case) require specific test setups and important safety considerations to avoid dangerous situations happening in DUT/setup failure.
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_Flux ESCC Domain has been updated
MANUFACTURER NOTIFICATION

FLUX NEWS – ESCC 3201/013 NEW ISSUE

doEEEt Media Group
July 5, 2021
0
Resulting from a successfully completed GSTP contract and ESCC Qualification campaign, the ESCC Detail Specification ESCC3201/013 issue 3 has been released. Under the GSTP contract Flux has developed a 5kW de-rated transformer and inductor as demonstrators for the output stage of Electrical Propulsion. The transformer was subjected to a step stress test to prove its suitability to operate at its full capability of 7.5kW and above.
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Vibration test IR source
EEE ComponentsTESTING

Lot Acceptance Test – LAT –

Alejandro López Moya
June 28, 2021
0
A Lot Acceptance Test (LAT) is a reduced set of Qualification tests over components or equipment, required to accept a specific manufacturing lot for its use. A LAT sequence allows customers to have complete traceability of the components they are going to use in their application, starting from the wafer used during manufacturing.
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EMI Shielding Solutions; Würth Elektronik Webinar
EEE Components

EMI Shielding Solutions

doEEEt Media Group
June 23, 2021
0
The use of conductive or magnetic shielding material can have a significant impact on EMI performance. This coupled with the potential for late stage introduction into the design makes these an attractive solution.
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Innovative Compact High-Current Inductor
EEE Components

Innovative Compact High-Current Inductor

doEEEt Media Group
June 23, 2021
0
With innovative improvements in its internal design, the latest model of WE-HCF-SMT high-current inductors from Würth Elektronik sets new standards in its class. WE-HCF in the 2010 design offers significantly better characteristics than previously available inductors in this size: inductance values up to 2 μH and saturation currents up to 25% higher than comparable products in the market.
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Switched-Capacitor Circuits Explained
EEE Components

Switched-Capacitor Circuits Explained

doEEEt Media Group
June 23, 2021
0
A switched-capacitor circuit is a discrete-time circuit that exploits the charge transfer in and out of a capacitor as controlled by switches. The switching activity is generally controlled by well-defined, non-overlapping clocks such that the charge transfer in and out is well defined and deterministic.
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ALTER TECHNOLOGY is a quality driven company providing procurement, engineering and test services for electronic components and systems, within space and harsh environment markets.
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