NEW Double Sided Flying Probe Tester for Substrate Test from atg Luther & Maelzer

S3-8 Double Sided High Speed Substrate Tester with 8 Test Heads for Structures Down to 10 µm             

atg Luther & Maelzer has added a double sided flying probe system for substrate test to its line of flying probe testers. The S3-8 10 µm substrate tester is the latest model of a new atg Luther & Maelzer product line launched last year with the introduction of the single sided S3. The single sided S3 and the double sided S3-8 both meet the challenging requirements of high end substrate test such as positioning accuracy and high number of contact points by applying the advanced flying probe technology of atg Luther & Maelzer.

Substrates are used to enable a connection between a semiconductor and a printed circuit board. A typical test panel consists of about 50 to 100 single substrates and has a size of approximately 250 mm x 80 mm. Each substrate has about 1000 to 2000 test points  requiring about 100,000 pads being contacted to achieve 100% continuity and isolation testing. For testing substrates on semiconductor side, structures as small as 10 µm have to be reliably contacted.

To meet this challenge the S3-8 utilizes eight freely moveable test heads and achieves a test rate of 100 ohmic two-point measurements per second. Optionally the test system can be fitted with a vacuum table for a capacitance based test.

Prior to electrical test, an optical alignment of the test sample correlates the shrinkage and offset of the finished product with the testing data and adjusts automatically. Two 5 Megapixel color cameras with a resolution of 1.2 µm ensure positioning accuracy of +/- 1.5 µ. The S3 systems work with a micro needle with a contacting pressure that is programmable from 0.3 g up to 2.5 g to ensure best test yield and repeatability without damaging the contact pads. The maximum test area of the substrate tester S3-8 is 350 mm x 310 mm (13.8” x 12.2”).

Jochen Kleinertz, vice president PCB Test Group at Xcerra explains: “Today’s established test systems are mostly single sided and therefore do not allow 100% ohmic continuity tests. However, more and more customers are asking for this type of test. The expertise of atg Luther & Maelzer in double sided test systems together with the unique multi head technology makes outstanding accuracy, speed and throughput possible.

We expect that this high throughput capability will enable double sided testing of substrate boards with flying probe test systems despite the high test point counts. This will allow our customers to use new test options for high end substrate boards, which were not available in the past.”

To learn more about the S3-8 Double Sided High Speed Substrate Tester, please visit http://atg-lm.com/S3-8 .

atg Luther & Maelzer Launches New Solution for Large, High Density PCBs:

LM2010 Grid Tester with Optical Alignment

atg Luther & Maelzer’s unique solution for testing large PCB panels with pads down to 150 microns ensures best yield in high volume production. The atg Luther & Maelzer LM2010 with optical alignment combines a well-established grid test system with the state-of-the-art Sniper optical alignment option.

Testing of products with 100-150 micron pads without optical alignment is negatively impacting yields. Pass rates can fall to 50-60% depending on the panel quality. Additionally, the risk of damaging the pads during test increases with smaller pad sizes. While grid test systems designed for testing HDI smartphone PCBs are capable of testing such dense structures, large panel testers do not have the same capability.

The new atg Luther & Melzer Sniper solution with optical alignment is specifically designed for large PCB – like MB motherboards – with dense structures. atg Luther & Maelzer adds the field proven Pico Sniper technology to the LM2010 providing the ability to test panels of up to – 19.2”.

Swen Fleischer, Vice President Greater China at atg-Luther & Maelzer explains: “We developed this solution in close cooperation with our main customers in Asia. It was driven by the trend of motherboard PCB manufacturers to produce two MB motherboards in one production panel. These productions panels with such a dense structure are similar to smartphones or tablet PCBs but with significantly larger dimensions making them more difficult to test. The low first pass rate of standard Grid testers for these types of applications adds cost due to multiple re-testing or the rejection of good PCBs. The LM2010 with Sniper solution can increase the first pass rate of these critical MB panels up to 85% to 95%!”.

 

 

atg Luther & Maelzer to exhibit at International Printed Circuit & APEX South China Fair, in Shenzhen

High Precision Flying Probe Test and Production Proven Grid Test Equipment

atg Luther & Maelzer will exhibit its leading test solutions for PCBs and substrates at the upcoming International Printed Circuit & APEX South China Fair scheduled to take place December 2-4, 2015 at the Shenzhen Convention & Exhibition Center, China.

atg Luther & Maelzer will showcase its well established grid test solutions LM2010 combined with the proven optical alignment system “Sniper” for the test of motherboards with pads sizes down to 150 µm.

From the leading flying probe product family, atg Luther & Maelzer will exhibit the recently launched S3 Tester. The S3 Flying Probe tester is capable to contact 10µm Substrate and meets all challenging requirements of high end substrate test. Such as positioning accuracy and high number of contact points by applying the advanced flying probe technology of atg Luther & Maelzer.

For more information, meet company representatives at the show or visit www.atg-LM.com.

 

 

atg Luther & Maelzer to exhibit at Productronica 2015

Comprehensive portfolio covers the full range from cost-efficient manual system up to full automation.

atg Luther & Maelzer will exhibit the fully automated flying probe test solution, A7a, as well as A5 Neo manual test system at the upcoming Productronica Show scheduled to take place November 10-13, 2015 in Munich, Germany.

The A7a test system combines state-of-the-art automation with highest flexibility. The fully automated flying probe tester offers parallel loading of different types of panels and fully supports lights-out operation. The A7a handles panels up to 650 mm x 535 mm size and flex boards down to 0.3 mm thickness.

To learn more about the A7a please visit http://atg-lm.com/A7a

On the booth of Adeon, a long term business partner of atg Luther & Maelzer, the A5 Neo can be seen. The A5 Neo manual test system combines affordable technology with all of the enhanced measurement methods of probe systems. To learn more about the A5 Neo please visit http://atg-lm.com/A5Neo

For additional information, meet company representatives at the show or visit www.atg-LM.com.

 

 

atg Luther & Maelzer to exhibit at TPCA Show 2015

Cost-efficient testing of PCBs and substrates

atg Luther & Maelzer will exhibit the fully automated flying probe test solution, A8a, as well as the high speed substrate test solution, S3-8, at the upcoming TPCA Show scheduled to take place October 21 – 23, 2015 at the Nangang Exhibition Center in Taipei, Taiwan.

The A8a test system combines the flexibility of flying probe testers with high throughput. The A8a provides significant cost advantages compared to fixture testers for small and medium batches and fully meets the requirements in its main application field: The electrical test of HDI products for smart phones and tablets. The A8a ensures best productivity, most efficient operation and best test quality and accuracy.

For more information, please visit http://atg-lm.com/products/flying-probe/automated-testers/a8a/

The S3-8 10µm substrate tester meets the challenging requirements of high end substrate test such as positioning accuracy and high number of contact points by applying the advanced flying probe technology of atg Luther & Maelzer. With its double-sided, eight test heads architecture the S3-8 achieves a substantially higher speed. This high throughput capability enables testing of higher quantities of substrate boards with flying probe test systems providing the customer with an economical test solution for high high end substrate boards.

To learn more please visit http://atg-lm.com/products/substrate-testers/s3-8/

For additional information, meet company representatives at the show or visit www.atg-LM.com.

TPCA Show

Taiwan has the world’s largest PCB industry, with an estimated value of 17.6 billion US dollars in 2014. This year, TPCA Show upholds its flagship standing by extending its reach from its fundamental elements – PCB manufacturing, materials and equipment – to downstream fields such as electronic assembly, surface finishing, IC packaging, thermal management, green technologies. With continued support from members of the PCB and peripheral industries, the 15th TPCA Show is expected to host 1,334 booths and to draw the attendance of more than 30,000 professional visitors.  http://www.tpcashow.com

 

 

Combining Speed with Automation:

atg Luther & Maelzer launches the A8-16a – a new automation version of the ultra fast A7/A8 linear motor technology

atg Luther & Maelzer releases the A8-16a, which combines the speed of the 16 probe system A8-16 with the well-known and market established automation of the A7a. The A8-16a addresses the test and productivity requirements of big or complex server boards or production panels up to 24.4” x 24.0” with huge test point numbers.

The 16 test heads of the A8-16a reach a test speed of up to 15,000 measurements per minute. The system fully supports the testing of air- and aerospace applications due to IPC-9252A guidelines. This includes Class 3 products which have to be tested using an adjacency based ohmic resistance test because a capacitance short test is not allowed.

The high throughput of the A8-16a allows for leveraging the flexibility of a flying probe tester for production quantities, for which traditional set-ups, would require several fixtures on a grid tester to achieve the required test coverage. This moves the economical break-even point, when it will be necessary to build multiple cost intensive test fixtures, to much higher quantities.

The system is equipped with 8 cameras for optical alignment and has a new gripper arm that can load products up to 10 kg (22 lbs).

Additional options for A8-16a include a barcode label system, 1000 Volt testing and low ohm Kelvin measurement capability. These features cover all the necessary test methods for complex and high cost printed circuit boards.

The system uploads the boards on separate good and bad board staggers. Before the boards can be labeled and identified by an optional barcode or DMC-code system. The-code shows the reference between a board and the corresponding fault file directly. This eliminates any potential handling failure by an operator.

The A8-16a is prepared for lights out operation. With the feeder capacity of 390 mm it is possible to load more than 200 boards with a thickness of 1.6 mm at one time. This capacity guarantees an operator free test over a whole night shift.

atg Luther & Maelzer Launches Flying Probe Tester for Substrates

S3 High Speed Substrate Tester for Structures Down to 10 µm

atg Luther & Maelzer has delivered the first flying probe system for substrate test to a major customer in Korea. The S3 10 µm Substrate Tester is the first system of a new atg Luther & Maelzer product line. It meets the challenging requirements of high end substrate test such as positioning accuracy and high number of contact points by applying the advanced flying probe technology of atg Luther & Maelzer.

Substrates are used to enable a connection between a semiconductor and a printed circuit board. A characteristic test panel consists of about 50 – 100 single substrates and has a size of approx. 250 mm x 80 mm. For electrical testing it is necessary to contact all end points of the product. Each substrate has about 1000 – 2000 test points. So on one product about 100,000 pads need to be contacted. For testing substrates on the semiconductor side, structure down to 10µm have to be reliably contacted.

To meet this challenge the S3 deploys four freely moveable test heads and achieves a test rate of 100 measurements per second. The test heads contact the test product from above and execute a capacitance measurement against a vacuum table. The capacitance result indicates opens and shorts in the substrates.

Prior to electrical test, an optical alignment of the test sample correlates the shrinkage and offset of the finished product with the testing data and adjusts automatically. A 5 Megapixel color camera with a resolution of 1.2 µm ensures positioning accuracy of +/- 1.5 µ.

The S3 works with a micro needle. The contacting pressure of this micro needle can be adjusted from 0.3 g up to 2.5 g to ensure best test yield and repeatability without damaging the contact pads. The maximum test area of the substrate tester S3 is 310 mm x 300 mm (12.2” x 11.8”).

Jochen Kleinertz, vice president PCB Test Group at Xcerra explains: “Today’s established systems work with two test heads and achieve test rates of around 30 measurements per second. With its four test heads architecture the S3 achieves more than three times this speed. We expect that this high throughput capability will enable testing of higher quantities of substrate boards with flying probe test systems in the future. This will provide the customer with an economical test solution for high end substrate boards. After the successful market introduction of the single-sided S3 we plan to complete our new product line with a double-sided system with eight test heads.”

New Flying Probe PCB Tester for Large Format, High Layer-Count

Backplanes: atg Luther & Maelzer releases the A7-20

atg Luther & Maelzer a company of Xcerra Corporation, announces the release and the first installations of the new A7-20 flying probe test system. Specifically designed for the demands of large format, high layer count backplanes, the A7-20 combines the flexibility typical for flying probe testers with accuracy and speed. The A7-20 significantly reduces test time and test cost.

The market segment for the A7-20 are large server and back panel designs for the telecommunication industry. These kinds of designs have up to 72 layers with a product weight of up to 30 kg (66 Ibs). 100.000 test points are very common on formats of up to 1.25 m (50 inches). In combination with higher density electrical test comes challenging. Traditional test solutions such as four-head probe systems or multiple oversized test fixtures for grid systems cannot fully meet the requirements in terms of speed and cost.

The new A7-20 flying probe system is equipped with 20 test heads, 10 cameras for optical alignment and the latest motion system design with direct linear drive technology for highest accuracy and test speed even on large format.

The A7-20 is designed to fully support ease-of-operation and best operator/machine ratio. The horizontal test position provides the advantage that one operator is able to load and unload these heavy printed circuit boards. A moveable support table, which can be attached to the front of the system, is available for loading and unloading.

The most comprehensive configuration of the A7 oversized system product line is an A7-24 with 24 test heads and 12 cameras for the optical alignment. A maximum board size up to 1.50 m (60 inches) can be tested at best volume production conditions.

Jochen Kleinertz, VP PCB Test Group at Xcerra comments: “We recently delivered and commissioned the first two systems in two large format PCB fabricators in China. With these new flying probe systems, we enable our customers to efficiently meet the increasing demand for high test coverage and 4-wire testing (Kelvin test) also for large PCBs. The unique and industry leading architecture of the atg Luther & Maelzer flying probe product line makes it possible to use a higher number of flying probes per test area and by this to bring down time and cost of test.”

atg Luther & Maelzer to exhibit at IPC APEX Expo 2015

High Performance Flying Probe Test and Automation

atg Luther & Maelzer will exhibit its fully automated flying probe test solution at the upcoming IPC APEX Expo scheduled to take place February 24 -26, 2015 at the San Diego Convention Center, California, USA.

At IPC APEX Expo, atg Luther & Maelzer will showcase its latest generation automatic flying probe system: The A7 – Automation (A7A).

The A7A meets the customer demand for total automation and lights-out operation including processing of different part numbers and product sizes. The A7A has the capability of handling production panelsup to 25” x 21” (635 mm x 535 mm) with an active test area of 24” x 20” (610 mm x 510 mm). The A7A features 8 high-speed carbon fiber test heads in combination with 4 high resolution color cameras. Besides final products, the system can be equipped with tension clamps for testing production panels down to 16 mil (0,4 mm) thickness. The high-speed A7A performs up to 125 measurements per second, depending on the product under test and test method used, on pad sizes as small as 1.3 mil.

Learn more about atg Luther & Maelzer at IPC APEX Expo2015

atg Luther & Maelzer releases the A8a

A new generation of automated highs speed flying probe PCB testers

The new A8a test system combines the flexibility of flying probe testers with high throughput. The A8a provides significant cost advantages compared to fixture testers for small and medium batches and fully meets the requirements in its main application field: The electrical test of HDI products for smart phones, tablet and PC motherboards.

The A8a ensures best productivity, most efficient operation and best test quality and accuracy. It is equipped with eight test heads and four cameras for optical alignment. The A8a is able to test pad sizes down to 35 micron. Testing HDI products for smart phones, tablet and PC motherboards up to a test area of 18.0” x 12.0” on the A8a, it also eliminates limitations of test point density or fine-pitch contacts.

The A8a features embedded component test or a 4-wire Kelvin measurement with an accuracy of +/- 0,025 mΩ.

The A8a is provided with a separate good and bad board stacker. The bad boards can be optionally labeled by a 2D-Code. The 2D-code indicates the reference between the boards and the corresponding fault file. This way handling failures by an operator are eliminated.

The A8a is prepared for lights out operation. With the feeder capacity of 390 mm it is possible to test 650 boards with a thickness of 0.6 mm at one time. This capacity guarantees an operator-free test over the whole night shift.

To fully meet the speed expectations the key feature of the A8a is a new dual shuttle system, which reduces the product exchange time to less than 4 seconds in automation mode. In combination with the fast test speed of up to 140 measurements/second the A8a will give customers a competitive test solution for batches up to 5000 boards. A typical cycle time of a 4-up smart phone board is about 2 minutes.

Peter Brandt, Sales Manager Europe and Japan, explains: “The main advantage of the A8a for PCB producers is the significant cost savings compared to a fixture tester. The high costs of dedicated fixtures, which can range from $10-30K per fixture, justify the electrical test with a high speed flying probe system.”