ASIC vs FPGA

Choosing between ASIC or FPGA

Manuel Padial Pérez
May 15, 2019
0
Application Specific Integrated Circuits or ASICs are non-standard integrated circuits that are designed for a specific use or application. Here a complete system or product is integrated onto a chip and virtually no other components are required. Its function cannot be changed to anything else because its circuitry is made up of permanently connected in silicon. The cost of designing an ASIC is very high, NRE (Non-Recurring Engineering) cost, and therefore they tend to be reserved for high volume products. But ASICs can be very cost effective for many applications where they are produced in large scale.
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Testing Methods EEE Parts

Semiconductor devices

Verifying the Structural Quality of the Glassivation Layer

Francisco Javier Aparicio Rebollo
February 21, 2019
0
This test is performed to verify the structural quality of the glassivation layer in aluminum metalized semiconductor devices or microcircuits. The glassivation layer is a deposited dielectric film (e.g., CVD, sputtered of electron beam evaporated glass or nitride, etc.) and its good condition is essential to avoid such problems as electromigration.
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helios-nanolab-650

What is SEM EDS, as Internal Material Analysis?

Francisco Javier Aparicio Rebollo
May 2, 2019
0
This analytic technique may provide both qualitative and quantitative information of the composition of a surface, i.e. identification of the elements and the element weights, respectively. The technique relies on the detection and spectroscopy of secondary radiation (X-Ray) emitted when a high-intensity incident beam of electrons impinges upon the materials placed in its path. The SEM – EDS Internal Material Analysis (also known as EDX or EDAX) can be performed in accordance with MIL-STD-883, MIL-STD-750, MIL-STD-1580 and ESCC 25500 requirements.
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Thermomechanical-failures ATN

Why occur Thermomechanical Failures in Plated Through Vias (PTV)?

Francisco Javier Aparicio Rebollo
March 6, 2019
0
Failures in plated through vias (PTV) can be related to different causes, some of them discussed elsewhere. Amongst them, thermomechanical fatigue is the most frequent failure mechanism observed in plated through systems. Hence, the present post analyses the typical thermally induced failures in PTV architectures.
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electrical measurements

When and What to do in an Electrical Test

Sonia Vargas
February 21, 2019
0
For passive devices testing, we have equipment which permits the characterization of the electrical behavior of resistors, capacitors, coils, etc., in a wide range of test conditions and in accordance with their applicable specifications: Measurement and testing of high power devices, Dielectric withstanding, voltage up to 12 KV Characterization on LCR devices up to 3 GHz
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Corrosion contamination

Different types of Corrosion/Contamination in Crimped Connectors

Francisco Javier Aparicio Rebollo
March 14, 2019
0
Crimped connectors are gas-tight junctions ideally protected against environmental contaminants and corrosive agents. Nonetheless inappropriate crimping and inherent connector and wire defects reduce this protection. Thus, depending of the storage atmosphere, non-conducting corrosion products can be formed, or stress corrosion cracking can be eventually induced. The former act as insolation layer that reduces the connector conductivity and both corrosion effects are identified as critical factors involved in common fails reported for electrical connectors.
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Destructive Physical Analysis

Using a DPA examination for Electrical Components

Manuel Padial Pérez
February 20, 2019
0
Destructive Physical Analysis DPA is a systematic, logical, detailed examination of EEE parts at various stages of physical disassembly. This activity is performed in order to verify that the manufactured lot quality is in accordance with the detailed specification and project requirements.
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pind test

Why to do a PIND test – Particle Impact Noise Detection

Adrián Cembrano Pérez
March 11, 2019
0
PIND ( Particle Impact Noise Detection Test ) testing is performed in order to detect the presence of loose particles inside a device cavity. Loose particle contamination is often caused by dirt, fibers, solder residues and other elements trapped inside the cavity during the sealing process. Loose particles can be a cause of electrical anomalies (or other physical problems) which in their turn can cause abnormal functioning of the parts and affect their reliability.
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CLSM2

Need a 3D Characterization Testing? Use Scanning Microscopy CLSM

Fernando Teberio
March 11, 2019
0
Modern manufacturing techniques depend on 3D measurement data combined with CAD/CAM techniques for quality control of high-precision components or mass production. Typically, contact measurement has been widely utilized by the industry. However, for complex and small 3D structures, the application of contact measurement is cumbersome or sometimes impossible. Therefore, noncontact measurement has gradually received much attention from researchers and industry.
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From ECSS-Q-ST-70-60C Dir.1

Studying Critical elements in PCB systems: Plated Through Via (PTV)

Mari Carmen López
March 13, 2019
0
Plated Through Vias (PTV) are critical elements in PCB systems and special care must be paid during their inspection in order to ensure the reliability, as they are one the main factors that determine the PCB Quality. The functionality and reliability of PTVs are dictated by: the plated through hole architecture (height/diameter), plating (thickness and quality) and other PCB general characteristics (materials and design).
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Failure analysis

Doing Failure Analysis in EEE Parts

Mari Carmen López
March 29, 2019
0
Failure analysis is the process of analysing the component data or the component itself to determine the reason(s) for degraded performance or catastrophic failure of a component either, during component manufacturing and testing, during incoming inspection, or after delivery to the customer, at the final application. Since there are an infinite number of variables in play at any one time, it is important as a first step in any failure analysis to understand how and when the failure occurred.
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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.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.

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EEE Components Digital Library

Filtering out common mode noise with EMI filters
EEE Components

Filtering out common mode noise with EMI filters

Elena Vallejo
May 17, 2019
0
Today’s automobiles provide a prime example. In a single vehicle, you can find Wi-Fi, Bluetooth, satellite radio, GPS systems, LED lights, air conditioning, power steering, anti-lock brakes, rear-view cameras, and other instrumentation. Numerous items also operate using dc motors, including power seats, adjustable mirrors, windshield wipers, power windows, and sunroofs. This same example could also apply to items ranging from Wi-Fi or Bluetooth-enabled appliances like washing machines, espresso machines, medical instruments, and even medical implants.
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SUPERCAPACITORS
EEE Components

Best balancing solution for supercapacitors

doEEEt Media Group
May 17, 2019
0
Design teams are now eyeing supercapacitors for a range of new products in energy harvesting, office automation, backup systems, and more. These supercapacitor cells provide efficient storage that can quickly discharge energy on demand. To ensure peak performance and a long product life cycle, the supercapacitor’s voltage must be balanced. If an imbalance occurs due to leakage current differences between the cells, an energy drain could be triggered, causing the supercapacitor cells to fail prematurely.
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High Voltage MLCCs Arc-Over
EEE Components

High Voltage MLCCs Arc-Over Prevention

doEEEt Media Group
May 17, 2019
0
In applications in which energy conservation is critical, such as wind or solar inverters or electric-vehicle (EV) powertrains, distributing power at high voltage can help to reduce I2R losses. The DC link supplying the inverter can be 3 V to 400 V in an EV application, for example, or even higher for wind or solar-power conditioning. However, high operating voltages like these bring additional safety challenges not only for end users but also for components — even those with a suitable voltage rating stamped on the case.
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ASIC DESIGN
EEE Components

ASIC DESIGN SUPPORT CAPABILITIES

Sonia Vargas
May 16, 2019
0
An ASIC is an application specific integrated circuit, which is usually designed to cover a need of functionality or performance (speed, power consumption, dimensions, etc.) that cannot be achieved by a combination of preexistent integrated circuits. The design of an ASIC implies the interoperability of complex tools. In the figure, it can be observed a simplified flow for a low power mixed-signal ASIC design, where both the digital and analog flow will converge via open access.
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ASIC vs FPGA
EEE Components

Choosing between ASIC or FPGA

Manuel Padial Pérez
May 15, 2019
0
Application Specific Integrated Circuits or ASICs are non-standard integrated circuits that are designed for a specific use or application. Here a complete system or product is integrated onto a chip and virtually no other components are required. Its function cannot be changed to anything else because its circuitry is made up of permanently connected in silicon. The cost of designing an ASIC is very high, NRE (Non-Recurring Engineering) cost, and therefore they tend to be reserved for high volume products. But ASICs can be very cost effective for many applications where they are produced in large scale.
Read More
RC Snubber Design for SMPS Protection

RC Snubber Design for SMPS Protection (Part I)

doEEEt Media Group
May 13, 2019
0
This is the first of the two articles devoted to the topic of an RC snubber design. In Part I, we discuss the fundamentals of inductive switching and the need for circuit protection. The impact of an RC snubber on the circuit performance is demonstrated through a series of simulations. Part II (to appear in the March 2019 issue of In Compliance) will address the systematic process of the snubber circuit design, together with the simulation and verification through the laboratory measurements.
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EEE Components

High CV MLCC DC BIAS and AGEING Capacitance Loss

Tomáš Zedníček
May 3, 2019
0
MLCC capacitors are dominating today’s capacitor market enabling high grade of electronics miniaturization. The continuous downsizing and use of higher and higher dielectric constant materials for MLCC class II capacitors have however resulted in worsening of some electrical parameters stability such as capacitance drop at operating conditions. Thus, in consequence, what can be considered as an enabling technology for consumer and wearable applications may pose some risk if used in critical applications such as automotive, safety, medical or industrial sector, that are also in need for continuous miniaturization.
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EEE Components

Equivalent Circuits and Circuit Types of Inductors

Tomáš Zedníček
May 3, 2019
0
Modern measuring equipment, such as the HP4195A impedance analyzer and similar instruments, allow computer-aided derivation of equivalent circuits and their optimization. Constant parameters for inductance L, capacitance C, and resistance R are required for the simulation of electronic circuits. An incorrect approach in defining an equivalent circuit leads to flawed or incorrect simulation results.
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Basic Principles of Potentiometers
EEE Components

Basic Principles of Potentiometers/Variable Resistors

Tomáš Zedníček
May 3, 2019
0
POTENTIOMETERS Concepts and Definitions Potentiometers are electromechanical components and therefore exposed not only to the weaknesses of fixed resistors but also to all the failure possibilities of electromechanics. The reliability is comparatively poor. It will be even lower if we try to tool the shafts for our own special applications!!
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