SPTS joins up with CEA-Leti on TSV

Crofton SPTS-Kevin-CroftonSPTS Technologies, the Newport etch, deposition and thermal processing specialist, has signed an agreement with CEA-Leti  to develop 3D-TSV technologies

The two-year agreement enters under the framework of the Nanoelec Research Technology Institute program which is led by CEA-Leti, and covers co-development of a range of deposition processes for next-generation 3D high aspect ratio through-silicon-via (TSV) solutions.

They  have already collaborated in the past, particularly on the development and optimization of an advanced MOCVD TiN barrier for high aspect ratio TSV.

To scale future 3D devices, new techniques will be needed to manufacture TSV’s of smaller diameter and higher aspect ratio than are used today.

Under this agreement, SPTS and CEA-Leti aim to develop production worthy solutions to address these challenges.

Previous collaboration has resulted in a number of key advancements in the formation of TSVs such as optimisation of an advanced metal organic chemical vapour deposition (MOCVD) TiN barrier for high aspect ratio TSV.

“ We plan to develop technology and processes that will further extend TSV aspect ratios beyond 20:1, with a particular focus on developing an MOCVD copper process as a seed layer to replace ionized PVD,” says SPTS CEO Kevin Crofton (pictured).

72 fabs closed in four years, says IC Insights

IC Insights Fab Closure72 fabs were closed between 2009-2013 and another nine fabs are to close this year, says IC Insights.

Since mid-2007, the IC industry has been paring down older capacity (i.e. 200mm and smaller wafers) in order to produce devices more cost-effectively on larger wafers.

A few fabs have been refurbished for production using larger wafers or for production of “non-IC” products.

One example is a 300mm wafer fab operated by Sony that closed, but was retrofitted and has returned to service manufacturing image sensors for the company.

40% of fab closures since 2009 have been 150mm fabs. Qimonda was the first company to close a 300mm wafer fab after it went out of business in early 2009. ProMOS and Powerchip closed their respective 300mm wafer fabs in 2013.

Regionally, semiconductor suppliers in Japan have closed 28 wafer fabs since 2009, more than any other country/region over the past five years. North America (23) and Europe (15) also had double-digit fab closures

Fabs closed or on the bubble in 2014 include Intel’s Fab 17 (200mm) in Hudson, MA; International Rectifier’s 150mm Fab 10 in Newport, South Wales; three fabs (two 150mm, one 125mm) at Renesas Electronics; two outdated NXP fabs (one 100mm, one 150mm) in Nijmegen, The Netherlands; and a 75mm wafer GaAs fab used by Panasonic Semiconductor to produce optoelectronic devices.

The closing of the two NXP fabs was announced a few years ago and was expected to be finalised in 2011, but was delayed due to strong demand for analog and logic ICs and some discrete components that are manufactured at these facilities. A 200mm fab continues to operate in Nijmegen.

As the cost of new wafer fabs and manufacturing equipment skyrockets, IC Insights expects several more companies to shutter older fabs and transition to a fab-lite or fabless business model in the coming years—good news that for foundries but bad news for equipment and material suppliers.

Spreadtrum overtakes Intel to be No.3 in baseband processors

Sravan Kundojjala

Sravan Kundojjala

Spreadtrum has overtaken Intel to grab the No.3 slot in the baseband processor market, says Strategy Analytics, which means that the second and third places in the baseband market are taken by a Taiwan company and a mainland China company.

MediaTek holds onto the No. 2 slot and Spreadtrum takes the No.3 slot pushing Intel down to No.4.

Qualcomm has a 66% share! MediaTek a 15% share and Spreadtrum a 5% share.

“For the first time in the last three years, Intel dropped out of the top-three baseband revenue share rankings as its 2G and 3G baseband shipments declined sharply in Q1 2014,” says SA analyst Sravan Kundojjala.

“Qualcomm grabbed two-thirds of the revenue share in the baseband market in Q1 2014, thanks to its diverse customer base and strong LTE product portfolio,” says SA’s Christopher Taylor, “Strategy Analytics calculates that Qualcomm’s LTE revenue share has now dropped to 91% in Q1 2014 from over 95% in Q1 2013. Qualcomm has a plenty of opportunities in terms of its LTE product-mix as less than 50 percent of baseband shipments were LTE basebands in Q1 2014.”

“MediaTek is now quickly establishing itself as a strong number two to Qualcomm in the baseband market,” says SA’s Stuart Robinson, “however, the company currently draws most of its growth from 2G and 3G markets only. In Q1 2014, MediaTek had no share in LTE basebands and we reiterate that the company needs to ramp up its LTE efforts with its upcoming LTE slim modems and applications processors to continue its growth trajectory.”

 

Bluetooth beacon draws under 20µA

EM Microelectronics CoinEM Microelectronic, the Swiss chip company, has introduced the COiN Bluetooth beacon. Which consumes less than 20µA average in a typical application, resulting in more than 18 months’ operation from a single CR2032 battery, which is included in the beacon.

COiN also contains a built-in pushbutton switch, guaranteeing that your beacons have a full charge when they are deployed. Integrated red and green LEDs provide users with feedback about the device’s operating mode.

The COiN’s integrated printed circuit antenna not only minimises cost, but maximises communication range. At the 0dBm output power setting, EM’s beacons can be detected 75 metres away by an iPhone 5S, and at maximum output power, that distance extends up to 120 metres.

Due to COiN’s optimised circuit architecture, it is completely immune to over-the-air attacks, meaning that a well-placed beacon is very secure. It cannot be “hacked” or modified unless the perpetrator has complete physical possession of the device.

COiN is shipped pre-programmed, complete with a Renata CR2032 battery and a weatherproof plastic enclosure, making it suitable for use at outdoor music festivals, sporting events and arenas, and anywhere a beacon is required to withstand the elements.

Though COiN is available in-stock pre-programmed and with a standard housing, the standard COiN hardware and firmware are easily modified to fit most applications. At the most basic level, COiN firmware can easily be modified to change the UUID, MAJOR ID, MINOR ID, output power, and beacon interval. These changes are useful for adapting the beacon for whatever smartphone software application/API is being used, segregating beacon populations and sub-populations, and for optimizing battery lifetime based on the desired use case.

Should more extensive firmware modifications be desired, EM offers a complete development kit. The COiN Development Kit includes five (5) COiN beacons, programming board and programming cable and is fully compatible with EM’s line of software development tools for the EM6819; EM’s ultra-low power microcontroller. Using these tools, customers have complete control over the firmware and can create their own Bluetooth Smart advertising packets and transmit real-time sensor data such as temperature, light level, battery voltage, or other physical phenomena.

The COiN enclosure can be customized to sport any embossed logo desired, making the beacon truly your product. No one will know that you leveraged EM’s decades-long experience and engineering effort and expertise to create your Bluetooth beacon, and we won’t say a word, though enclosure customizations are subject to a minimum purchase volume and tooling charges.

Not much larger than the CR2032 battery that powers it, COiN can be used almost anywhere. To assist in attaching and deploying COiN, EM offers a suite of accessories. The Key Fob Accessory snaps over COiN for attachment to key rings or for hook or loop-based attachment methods such as zip-ties. The Wall Mount Accessory can be nailed or screwed to a solid surface, and then COiN is snapped into place, completely hiding the Wall Mount. COiN can also be snapped into the Watch Band Accessory and any of a number of wrist bands for wrist-worn applications.

“COiN leverages EM’s expertise in ultra-low power wireless and computing as well as our high quality standards and synthesizes them into a high performance, Bluetooth beacon that is ready to deploy out of the box, but flexible enough to be modified for many different applications,” says EM president  Michel Willemin, “we are already engaged with many companies who are using COiN with their App, API, SDK, or service to improve their performance and lower their overall cost. We believe that the availability of such a flexible, optimised Bluetooth beacon will enable a truly pervasive Internet of Things.”

R&S tester sets up vehicle-to-vehicle radio links

Rohde and SchwarzRohde & Schwarz has introduced a radio conformance test system for standard-compliant testing of components for vehicle-to-vehicle applications and intelligent transport systems (ITS).

The TS-ITS100 automated test system for standard-compliant testing of RF components in line with IEEE 802.11p. These components are used for vehicle-to-vehicle communications and intelligent transport systems (ITS).

Using sequencer software developed especially for RF conformance tests, the test system makes it possible to verify compliance with regional standards such as ETSI EN 302 571 in the EU, IEEE 802.11-2012 in the USA or the ARIB standard in Japan.

These standards ensure that 802.11p user equipment works smoothly within the available spectrum and does not interfere with adjacent services in the spectrum.

Taking fading into consideration, the TS-ITS100 also covers specific performance tests as defined by the Car 2 Car Communication Consortium (C2C-CC), which includes Rohde & Schwarz.


81dB Sinad isolated ADC

analog devices AD7403_fblAnalog Devices is claiming to have the industry’s highest-accuracy isolated sigma-delta (∑Δ) data converter for DC and AC current and voltage measurement.

The AD7403 achieves 81dBmin signal-to-noise and distortion ratio (Sinad) at 78ksample/s over -40°C to 125°C.

“Higher Sinad enables more accurate current and voltage measurement which improves the performance of motor drives by reducing torque ripple on the motor shaft,” said ADI.

It has a second-order ∑Δ modulator that converts an analogue input signal into a single-bit data stream with on-chip digital isolation (1,250Vpeak) through on-chip transformers.

Power on the output (and control) side is 5V or 3V.

 

Low-cost VNA performs 40GHz s-parameter tests

11jun14anritsuWEBAnritsu has introduced a range of low-cost vector network analysers (VNAs) for s-parameter measurement of passive components, cables, connectors, filters, and antennas.
The VNAs can perform the single-ended and mixed-mode S-parameter measurements typically required for production testing of passive devices, offering frequency coverage up to 40GHz. They can also conduct path loss characterisation of more complex systems.
Prices start at €10,000 (£8,070) for the MS46322A two-port model.
The slimmed down VNAs, branded ShockLine, have no display or keypad, and are controlled remotely by computer via a LAN or other connection.
The MS46522A VNA features a 70µs/point sweep speed, greater than 110dB dynamic range and corrected directivity of greater than 42dB. The MS46524A four-port model is for differential and multi-port device testing up to 7GHz. The two-port MS46522A is priced at €19,700 (£15,830)and the 4-port MS46524A is priced at €25,500 (£20,599).
The VNAs use SCPI command programming and have software driver support, so they can be easily integrated into most programming environments.

Hall switch has regulator

11jun14melexisMelexis Technologies has introduced a Hall-effect switch device with an integrated voltage regulator and on-chip non-volatile memory. On-chip EEPROM is used to enable the various tolerances that need to be defined for a specific application to be set, via the device’s Vdd pin, which can be readjusted before finally being locked.

“The range and resolution of programmable magnetic thresholds and thermal sensitivity coefficients allows the sensor, working in conjunction with a magnet, to easily implement a ferrous metal proximity-sensing system,” says the supplier.

It says the temperature compensation programmability of the MLX92242 means it can be used with all kinds of magnets, including the low-cost ferrite materials. It supports two-wire rather than a three-wire implementation, only using the Vdd and GND pins, but still providing all the necessary diagnostic capacity to respond to malfunctions.

“The advantage of this is that far less wiring/cable harnessing is needed, allowing deployment into confined spaces and reducing the overall weight in applications where this could otherwise be a disadvantage. The voltage range, which covers 2.7V to 24V, enables design flexibility to be maximised,” says the company.

Likely automotive applications include seat-belt latch detectors and seat position sensors. Designed for automotive and industrial environments, the device has a very high resilience to electro-static discharge (ESD) , with 8kV human body mode ESD compliance, and operational temperature range spans from -40°C to 150°C.

Reverse supply voltage and under-voltage lockout protection mechanisms are incorporated.
It is supplied as either a three-pin TO-92-Flat for through-hole mount assembly or in three-pin TSOT for surface mount assembly.

Cambridge start-up connects horses to IoT

Will Bradley, managing director of Gmax

Will Bradley, managing director of Gmax

Cambridge Design Partnership has created a start-up company aimed at commercialising wearable electronic devices, for horse-racing.

Gmax Technology will manufacture a range of connected body monitors aimed at the horse-racing sports market.

The 5 year old start-up is targeting a niche high value market for sports monitors. It has been supported by Technology Strategy Board SMART awards and Knowledge Transfer Partnership grants.

One of its first products, called Vetcheck, is a handheld equine ECG and is currently in use at Dubai International Endurance City.

The firm’s flagship product, dubbed the Trackwork, is used to gather live performance data from groups of training horses, allowing owners and trainers to monitor fitness during training anywhere in the world.

It is currently in use in the UK by the Coral Champions Club allowing over 4000 of their members to follow the training of their horses over the internet.

gmexThe spin-out came from Cambridge Design Partnership’s expertise in designing medical diagnostic devices and products.

“The multidisciplinary approach of the team has allowed us to create products that combine novel sensors with wireless communications, which deliver valuable insights into the physiological effects of training,” said Will Bradley, managing director of Gmax.

“These innovative solutions are already in use by the horse racing industry and we expect similar products to be developed for a variety of markets such as human healthcare and sports training.”

 

 

US conflict minerals legislation has no exceptions

Howard Venning

Howard Venning

Aspen Electronics, managing director Howard Venning emphasises the need for suppliers to demonstrate compliance with European and US government legislation.

By far the biggest change has been the UK’s integration into the European Union. Membership has meant that today the UK must agree with, and implement, hundreds of EU directives and ensure compliance.

It all started with CE marking, which encompassed EMC, LVD, RTTE, WEEE, REACH & RoSH 2, plus the Batteries Directive, to name just a few.

All the above legislation comes at considerable cost to both large and small manufacturers as they work to prove understanding and compliance. An online search will reveal literally hundreds of manufacturers, distributors and stockists own interpretations of the regulations and statements of compliance.

For each of these pages someone somewhere had to spend time and effort in understanding the implication of the regulations and then writing a statement to provide an answer to each and every customer who asked the question. In turn these customers are asked by their customers to prove compliance and the cycle starts all over again.

Anyone who has been in the industry for 30 years plus will know that today’s equipment is so much better than it used to be – but still end users must have 100% confidence that the products they have purchased are safe. All this costs money and we’re all paying for it.

With all this legislation we have yet to reach that point in the development of standards where someone stands up and says – “you know what, I think that is as good as it will ever get”. If we did get to that point we would all breathe a sigh of relief as the prospect of yet another course or presentation diminishes.

Dealing with US legislation is far more onerous. US export controls have been in place for many years. The EAR regulations have always focussed on making sure US products were not shipped direct to or indirectly to undesirable countries, customer or end uses.

Whilst the countries, customers and end uses have changes, the basics have not and anyone importing products from the USA should know what is required.

More recently the USA introduced the ITAR regulations which applied in parallel to the EAR regulations and therefore became far more demanding. As the implications of non-compliance came to the fore, organisations, typically the major defence contractors introduced their own compliance regimes to ensure they could demonstrate they had everything under control.

Our experience has revealed marked differences in the way ITAR regulations are interpreted by both manufacturers and customers, again adding to the cost of compliance.

With any of the previously mentioned EU directives there are numerous exclusions. For example, the WEEE directive has a de minimis clause that exempts “small producers” (those that produce less than 5 tonnes of electrical waste per year) from joining a Producer Compliance Scheme.

Another example is the use of lead in other electrical and electronic applications as defined in the RoHS regulations. Whilst the general idea is to prohibit the use of lead, certain applications are exempt and a small amount of lead is permitted in, for example, certain types of solder.

However, the latest piece of legislation to arrive from the US has no exceptions or exclusions. This possibly unique piece of legislation is the requirement to comply with the ‘Frank-Dodd’ act, otherwise known as the Conflict Minerals Act.

The conflict minerals act has no de minimis clause and therefore no matter how small you are as an organisation, or your “use” is of any of the minerals controlled under the act, you must comply. This is almost an impossible task that will certainly demand many hours of research, emails, letters etc. as you keep your customer, and their customer and their customer, happy as the effects of this legislation goes up and down the supply chain.

In a recent example the US parent of a UK company sent us an excel spreadsheet to complete that details all the products from all the manufacturers we had supplied over the last few years.

This we completed with the standard statement that we were a distributor and as such were not in a position to supply all the information required. We received a short email thanking us for our submission, but it pointed out that “we have detected that the list of smelters has not been provided.” At that point, which just happened to be 5.00pm on a Friday afternoon, I needed to make a serious management decision.

What was more important, trying to work out just how I was going to get the names of the smelters used by the supplier of the gold…. who supplied the gold dealer…. who supplied the gold distributor…. who supplied the plating shop…. that plated the centre pin of the BNC connector…. produced by the connector manufacturer…. who supplied the distributor…. who supplied the manufacturer of the 50ohm 25 watt load, (which was just one of the 28 products on the list), or find a supplier that had an arrangement with the manufacturer of a complex product that demanded just as much time and effort to ensure quality was maintained throughout the supply chain bringing the customer a repeatable product ensuring the purchasing experience met all the criteria expected…. the pub won !