Technical Library | 2015-08-13 15:52:40.0
Pad cratering has become more prevalent with the switch to lead free solders and lead free compatible laminates. This mainly is due to the use of higher reflow temperature, stiffer Pb-free solder alloys, and the more brittle Pb-free compatible laminates. However, pad cratering is difficult to detect by monitoring electric resistance since pad cratering initiates before an electrical failure occurs. Several methods have been developed to evaluate laminate materials' resistance to pad cratering. Pad-solder level tests include ball shear, ball pull and pin pull. The detailed methods for ball shear, ball pull, and pin pull testing are documented in an industry standard IPC-9708. Bansal, et al. proposed to use acoustic emission (AE) sensors to detect pad cratering during four-point bend test. Currently there is an industry-working group working on test guidelines for acoustic emission measurement during mechanical testing.
New Equipment | Industrial Automation
General Information Product ID: 64513591 ABB Type Designation: NINT-72C MD KIT Catalog Description: NINT-72C MD KIT; MAIN CIRC.INTERFA Long Description: NINT-72C MD KIT Categories Parts & Services » Drives » Low voltage AC drives »
Industry News | 2007-10-23 02:23:25.0
Agilent Technologies Inc. (NYSE: A) today introduced the enhanced version of the Agilent VEE 8.5 graphical programming software for test and measurement, equipping users with more functions and support for the latest software tools and operating systems in the industry, including Windows Vista.
New Equipment | Industrial Automation
Sales Manager: Sandy Lin Email: unity@mvme.cn Skype: onlywnn_1 Mobile(Whatsapp): (+86)-18020776786 XIAMEN YUEHANG COMPUTER ENGINEERING CO.LTD. is a company that professionally engaged in large system DCS spare parts supply. We supply DCS, PLC, M
New Equipment | Industrial Automation
Sales Manager: Sandy Lin Email: unity@mvme.cn Skype: onlywnn_1 Mobile(Whatsapp): (+86)-18020776786 XIAMEN YUEHANG COMPUTER ENGINEERING CO.LTD. is a company that professionally engaged in large system DCS spare parts supply. We supply DCS, PLC, M
New Equipment | Industrial Automation
Sales Manager: Sandy Lin Email: unity@mvme.cn Skype: onlywnn_1 Mobile(Whatsapp): (+86)-18020776786 XIAMEN YUEHANG COMPUTER ENGINEERING CO.LTD. is a company that professionally engaged in large system DCS spare parts supply. We supply DCS, PLC, M
Used SMT Equipment | AOI / Automated Optical Inspection
Main Auction: DEK Galaxy Auto Solder Paste Printer DEK Europa Auto Solder Paste Printer Fuji CP65 / CP65E Placement Machine Fuji CP643 Placement Machine Fuji QP242E Placement Machine Universal GSM2 Placement Machine Universal GSM Placement Mac
New Equipment | Test Equipment
Agilent/HP 54602B (2+2) Channel 150 MHz Digital Oscilloscope When you need more than 100 MHz of bandwidth, take a closer look at the 54602B scope. You get the same capabilities as the 54600B but with the added advantage of a 150 MHz bandwidth.
New Equipment | Test Equipment
The Agilent E4400B ESG-A RF Signal Generators offer excellent performance with superior quality, reliability and worldwide support -- at an affordable price. The first in a new generation of signal generators, they provide excellent frequency and lev
New Equipment | Test Equipment
The Agilent 3458A Multimeter, recognized the world over as the standard in high performance DMMs, provides both speed and accuracy in the R&D lab, on the production test floor, and in the calibration lab. The Agilent 3458A is simply the fastest, most
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