Circuits Assembly Online Magazine - Features

At SEMICON West, Speedline Technologies will spotlight the latest platform enhancements and developments of its soon to be released XyflexPro⁺Dispensing System.

Delivering an increased speed rating of more than 30% and twice the accuracy,
It features an advanced composite gantry design and linear drive system using motion control drive technology. Available as a standalone or in-line system, can be configured for a range of dispense applications within the electronics, automotive and medical industries.

Also on demonstration at booth 8705: The XyflexPro HVB dual head dispense system and the Accel MicroCel cleaning platform.

Speedline Technologies, speedlinetech.com

Micro-Meter 2 Servo is a positive-displacement, two-component meter-mix dispensing system designed to apply small precision beads and small metered shots of precisely mixed resins. Servo-motor design provides consistent, repeatable bead profiles and variable-flow-rate metered shot volumes. Said to improve production rates and product quality, and reduce manufacturing costs.

Provides a variety of preset material-dispensing profiles and dispense results. Can dispense precisely mixed materials for different part configurations. It can be preset to vary the flow rate during dispensing—to change the bead profile in gasketing or fill rate in potting applications—in automated, indexing, xyz-motion and robotic processes. The control will also accept commands from the automation.

Snuf-Bak or No-Dripdispense valve is provided with seals matched to each dispense fluid and designed for long life in high-cycle dispensing applications. Dispense valve may be remote mounted. Disposable No-Flush mixers mix and dispense virtually all two-component materials including epoxies, polyurethanes and silicones.

Sealant Equipment & Engineering Inc., www.SealantEquipment.com

Integrated Reliability Test Systems (IRTS) Inc. announced that Rockwell Collins has purchased a Highly Accelerated Thermal Shock (HATS) System.

The system, scheduled to be installed in September, will service Rockwell Collins' in-house thermal shock testing requirements. Two HATS systems were previously installed at Intel Corp. and the Hong Kong Productivity Council last year.

The system, which has been in use by the IPC PCQR² Database for reliability testing of via daisy-chain structures since October 2003, offers:

Built on existing air-to-air thermal shock standards (IPC-TM-650, Method 2.6.7.2B)
Reduced operating cost over dual chamber systems
Reduced cycle times by 50 to 70%
36-coupon capacity with 4 nets per coupon
Temperature cycles ranging from -60 to +160°C
20 4-wire precision resistance readings per second

Integrated Reliability Test Systems, www.hats-tester.com

EM4D-100L is a 2 mm square, 8-pin DFN package, 4-line low pass filter array with integrated TVS diodes. Designed to suppress unwanted EMI/RFI signals and provide ESD protection for high-speed data interfaces such as color LCD displays, camera imagers in mobile phones and PDAs.

With a desired cutoff frequency of 150 MHz, provides EMI/RFI attenuation better than 35 dB in the 800 MHz - 3GHz bandwidth. This blocks RF noises from GSM, DCS or Bluetooth, which affect the baseband chipset and other blocks. Meets the immunity test standard IEC 61000-4-2 at all levels, providing ESD protection.

In standby mode, integrated TVS filter has a very low leakage current (less than 100 µA) - an essential feature for battery powered handheld devices. In addition, the low profile durable 8-pin DFN package is useful in many applications.

ProTek Devices, www.protekdevices.com

For design engineers facing thermal cycling issues with power components in high-temperature environments, IRC has developed a "capped" version of its cylindrical power resistor that delivers thermal compliance and thermal isolation from circuit boards. The SMC Series Metal Glaze resistors are available in ratings up to 2 watts.

Designed to solve the problem of thermal mismatch between FR4 PC boards and ceramic components.

Applications include high power-density applications, such as underhood automotive control units, GFI control circuits, as well as any application where high thermal stress is present. Can be a potential cost saving replacement for bulky surface-mount wirewound devices.

Rated for 1 W at 70ºC, with resistance values from 0.1Ω to 1MΩ, in standard tolerances of ±1%, ±2% and ±5%, with TCRs as low as ±25ppm/ºC. SMC2 Series resistors are rated for 2W at 25ºC, with resistance values from 0..2Ω to 2.2MΩ, in standard tolerances of ±1%, ±2% and ±5%, with TCRs as low as ±25ppm/ºC. Operating temperature range is from -55° to +150°C. All are RoHS compliant and suitable for high-temperature soldering processes.

Feature a MetalGlaze thick film element fired at 1,000ºC to a solid ceramic substrate and a high temperature dielectric coating that is impervious to degradation in high-moisture environments.

IRC Wirewound and Film Technologies Division, www.irctt.com

KIC has expanded its library of solder paste process windows within the KIC 2000 software to 788. This number includes reflow and cure specs, as well as a host of new lead-free solder paste process windows.

The library is scheduled to be updated with new pastes every quarter, and is available for download to KIC 2000 platform users free of charge. With the addition of solder pastes to the library, the following dialog will be displayed on the Web site when a user clicks to download the file: "This release of the KIC 2000 Solder Paste Specs Library contains updated information for the following manufacturers: Almit, Avantec, Cobar, Indium, Kester, Koki, Loctite and Multicore." For paste manufacturers that are not listed above, KIC will attempt to provide updated information in the next release. If a solder paste is being used that is not listed in the Library, users can select the "Define Your Own Spec" option and manually enter the data that is given on the technical data sheet provided by that paste's manufacturer.

Each future update will contain the list of any manufacturer whose data has been changed/updated. This allows the user to know ahead of time whether they need download the file or not.

KIC, www.kic-thermal.com