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Electronics Forum | Thu May 09 08:12:15 EDT 2002 | ianchan
Hi mate, think "GSI Lumonics" a Canada based mafg of laser orientated product-machines may be able to help you. we saw their SVS8200/8300(machine model) theory based demo. looks good enough to warrant the time and resources to evaluate their machi
Technical Library | 2008-01-16 18:25:55.0
The consumer's interest for smaller, lighter and higher performance electronics products has increased the use of ultra fine pitch packages, such as Flip Chips and Chip Scale Packages, in printed circuit board (PCB) assembly. The assembly processes for these ultra fine pitch packages are extremely complex and each step in the assembly process influences the assembly yield and reliability.
Technical Library | 2009-06-25 14:49:50.0
Although blade contact angle is a critical stencil printing parameter, screen printers have so far been unable to vary it "on-the-fly", in software. The recently released Assembléon/Yamaha YGP printer has changed this, and has made new application research possible to study a crucial 01005 process variable for feature printing that previous researchers have ignored. We have designed the first robust solder paste printing process for 01005 components that uses only a single printer and stencil. We have studied transfer efficiencies across all the major parameters, with important results for reliable high-density equipment assembly. Our findings show that a variable blade contact angle can print fine features with wider process window, and reduce overall process variation between boards produced from a line.