Industry News | 2015-10-11 15:35:54.0
New placement modules, tapeless feeders, new screen printers and the first expert system that optimizes SMT processes automatically. At Productronica 2015 (November 10-13, Munich Trade Fair Center), technology leader ASM Assembly Systems will present a show unlike any other under the motto “On the move to the Smart #1 SMT Factory”. On 650 square meters at booth A3.377, the SMT experts will lay out their roadmap to the Smart Factory with a “Speed Quality” line and a “Flexible Quality” line featuring totally innovative technologies. The focus will be best-in-class equipment, automation tools, production process networking and integration, and transparent material logistics. At the “Speed Quality” line, new SIPLACE TX placement modules will ring in the mass placement of super-small 0201 (metric) components. A single SIPLACE TX module alone can place up to 78,000 of these per hour at full speed at smallest footprint. With its compact design, it also sets new records in speed, floorspace performance and placement accuracy. Components in sizes from 0402 through 01005 will be supplied loosely and without tapes thanks to the new SIPLACE BulkFeeder. This ASM innovation finally bans reels and splicing from the SMT production floor. With the DEK NeoHorizon and DEK NeoHorizon Back-to-Back, the ASM team will also unveil new, powerful screen printers. Most of the visitors’ attention, however, will be focused on the ASM ProcessExpert. This first inline expert system in the industry establishes a new product category in electronics manufacturing. By running virtual prints based on Gerber data, the ASM ProcessExpert subjects the stencil to a DFM (design for manufacturability) health check. By stabilizing and optimizing the printing process automatically, this highly innovative system represents a milestone on the path to self-optimizing SMT lines. Each of these innovations constitutes a building block for the Smart Factory.
Electronics Forum | Wed Aug 13 16:38:00 EDT 2014 | anvil1021
We are seeing some PCBs especially from foreign sources that exhibit silk screen color change after reflow? Has anyone else seen this lately?
Electronics Forum | Sun Nov 02 22:18:32 EST 2014 | jojoliang
What's the specification of the PCB, usually the silk screen can not change.
Electronics Forum | Thu Oct 30 23:50:38 EDT 2014 | beilimanu
Reason is the quality of silk screen oil is bad.
Electronics Forum | Sun Nov 16 19:05:45 EST 2014 | warwolf
Seen it. We use a lead free process, sometimes our supplier will use a lead process silk screen that burns at a lower temp. The HASL coat was still SN100CL.
Electronics Forum | Fri Aug 17 10:50:15 EDT 2007 | Frank
I agree that the documentation should be used and not necessarily the silk screen. The silk screens can be a first line of defense, but nothing beats the proper documentation. Years ago I visited a contract manufacturer that a friend was working at
Electronics Forum | Fri Aug 29 09:39:08 EDT 2014 | rgduval
I'll try to deal with the issues as you've presented them. 1. Blistering/delamination, shown in photo 2. The most likely cause of blistering/delamination like this is moisture in the boards. The moisture can get into the boards in multiple ways..
Electronics Forum | Wed Dec 12 17:00:14 EST 2001 | mparker
Aw Dave - you guys are so fashionable, are the dark green and red combos seasonal? caramel brown like a Pale Ale? I once heard that the green was chosen because it gives the best color contrast for white silk screens. As for color reflecting or abs
Electronics Forum | Tue May 10 17:50:08 EDT 2005 | davef
Consider: * Changing your temporary solder resist [TSR] to a light cure. * Contracting with your board fabricator to apply the TSR. * Gaining better thickness control of your application process by silk screening the current TSR. * Forcing more air c
Electronics Forum | Thu Jul 13 22:20:38 EDT 2000 | Dave F
=10 mils larger than lead 3 silk screen legend text weight >=10 mils 4 pads >=15 mils larger than finished hole sizes 5 place through hole components on 50 mil grid 6 no silk screen legend text over vias (if vias not solder masked) or holes 7 so
