SMTnet.com Electronics Manufacturing Forum http://www.smtnet.com/Forums/ Printed circuit board assembly, surface mount technology and electronics manufacturing forum discussions from SMTnet.com. Fri, 19 Dec 2014 00:28:47 GMT Fiducial alignment on Juki http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=17859 Hello, I don't have any experience with Juki. Visited one of their booth recently and I was told they use a laser for alignment. How does this work? Is there any advantage over the traditional vision alignment? Thanks! Thu, 18 Dec 2014 14:38:58 GMT epoxy/polyethylene http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=17857 Does anybody know what material is used for over molding I/Cs. I would like to find a material that others use to mold there electronic components. I am wire bonding and mounting a small cap (0201) on an FR-4 board. I need this material to withstand a temperature of 260c for ten seconds. This is to simulate a reflow oven or a wave solder machine after the parts are molded. Thu, 18 Dec 2014 13:07:50 GMT High-speed solder paste dispensing. MY500, MY600, FX-D....? http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=17858 Thu, 18 Dec 2014 11:53:51 GMT Siplace S-feeder manual http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=17837 Can I ask someone to send OEM repair manual of Siplace 8mm, 12/16, 24/32mm feeders? I have the user manual without any service/maintance description/advice only. If someone can help please send a PM with an e-mail address where I can ask to send any files. Thu, 18 Dec 2014 08:19:19 GMT Big Promotion to Celebrate Christmas and New Year 2015- Pick and place machine TM220A/240A - Neoden Tech http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=17856 Thu, 18 Dec 2014 02:25:44 GMT Big Promotion to Celebrate Christmas and New Year 2015- Pick and place machine TM220A/240A - Neoden Tech http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=17855 Thu, 18 Dec 2014 01:42:26 GMT Big Promotion to Celebrate Christmas and New Year 2015- Pick and place machine TM220A/240A - Neoden Tech http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=17854 Thu, 18 Dec 2014 01:23:38 GMT Big Promotion to Celebrate Christmas and New Year 2015- Pick and place machine TM220A/240A - Neoden Tech http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=17853 Thu, 18 Dec 2014 00:07:57 GMT My first PCB purchasing experience http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=17842 Hello friend, I finished my PCB design and wanted to put it into board. There comes the problem that I am a student who do not have much money. But many great PCB manufacturers do not give low-volume PCB fabrication service, otherwise it will cost much higher. Of course, money is not the only concern, but also the quality. In order to reach my gold, I looked for some information from the Internet. I knew that almost 70 percent PCB boards were made in China, and their payment is relatively lower. There are so many Chinese PCB manufacture , how can I choose from the huge sea. One day, I was wondering in a forum, when I saw a article about a native's first PCB purchasing experience. She shared her searching information about some American, Australia, British and Chinese PCB manufacturers. After careful reading, I found that the Chinese one "www.pcbway.com/w' is the cheapest one and the delivery schedule is comply with my production plan, so I came to have a try. I was excited to find it's service is so convenient for I can get a instant online inquiry and online order. Consumers' evaluation showed its quality is relatively guaranteed. Finally I finished my order. After about one week later, my board arrived. I was happy to find its quality good, it was so cost-efficient to get such good product with much lower payment. Therefor, I would like to share my purchasing experience to those guys who have the same concerns. Wed, 17 Dec 2014 21:14:25 GMT High-speed solder paste dispensing. MY500, MY600, FX-D....? http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=17852 Wed, 17 Dec 2014 19:35:45 GMT Problem Boot CP643E http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=17851 Hi all, i have installed an CP643E and when i put power ON,instantly i have the red led HALT goes ON on the cpu board (HIMV-134) i have change the board but same problem... do you have an idea of the problem? thanks Ben Wed, 17 Dec 2014 10:35:39 GMT Dispenser Valve Purging Alternatives http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=17850 Wed, 17 Dec 2014 10:19:52 GMT Enquires regarding qualification of Parylene Conformal Coating http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=17849 Dear All, i am currently trying to qualify my Parylene Conformal Coating process and is trying to conduct: 1) IPC-TM-650 Method 2.6.3.4 (Moisture and Insulation Resistance – Conformal Coating) and 2)IPC-TM-650 Method 2.5.7.1 Tests (Dielectric Withstanding Voltage – Polymeric Conformal Coating) tests for my product. However, there is no pass/fail criterion stated in these 2 standard tests but these 2 tests are essential as called for by IPC-CC-830. Hence, i will like to find out whether anyone had conduct these tests before using IPC-B-25A board and can answer my enquires: 1) Do anyone have a guide of the pass/fail criterion for the IR measurement if i am using parylene to coat the IPC-B-25A board? I had check the Mil-I-46058 test standard which had a pass/fail criterion of > 1 x 10^10 ohm. Can i use the same specs? 2) Similarly, do anyone have a guide of the pass/fail criterion for the DWV measurement for parylene on IPC-B-25A board? I had check the Mil-I-46058 test standard which had a pass/fail criterion of < 10uA. Hence will like to check if i can use the same specs. Will greatly appreciate if anyone can answer my enquires. Thank you. Wed, 17 Dec 2014 09:41:24 GMT Added capibilites going from 7w to 20w, 355nm YAG laser http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=17848 What are the added capabilites going from 7w to 20w, 355nm YAG laser I wanted to know what the added capabilities we now have are going from a 7w to 20w, 355nm YAG laser. Currently we support the following materials: <a class=roll href="http://www.bestlaser.net/materials.html" target="_blank">http://www.bestlaser.net/materials.html </a> Don't know if we can include more materials going to a 20w or maybe our cutting depth has increased. Thank you David Cloughley BEST, Inc. (331) 425-2055 Wed, 17 Dec 2014 08:47:18 GMT What are the added capabilites going from 7w to 20w, 355nm YAG laser http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=17847 I wanted to know what the added capabilities we now have are going from a 7w to 20w, 355nm YAG laser. Currently we support the following materials: <a class=roll href="http://www.bestlaser.net/materials.html" target="_blank">http://www.bestlaser.net/materials.html </a> Don't know if we can include more materials going to a 20w or maybe our cutting depth has increased. Thank you David Cloughley BEST, Inc. (331) 425-2055 Wed, 17 Dec 2014 08:37:55 GMT What's the added applications going from 7w to 20w, 355nm, YAG Laser http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=17846 Wed, 17 Dec 2014 08:31:01 GMT Best practices for changeover --leaded > Lead-free > Leaded-- http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=17831 Hola, here is a question that may be answered by common sense, but I'd like to hear from you; I have a couple of SMT lines, and I'm constantly changing from leaded to lead-free process and backwards, so, I cannot dedicate one line for leaded and another for lead free. What are the best practices to perform a changeover and avoid contamination? PS.- my line consist in a solder paste printer, PnP, Oven, touch up station, hand insertion, hand soldering, visual inspection. Saludos! Tue, 16 Dec 2014 22:09:36 GMT Calibrations jigs for Yamaha P&P http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=17805 Does anyone know where can buy calibration jigs for Yamaha P&P machines (Glass QFP68,16,208 , etc) Tue, 16 Dec 2014 05:40:06 GMT BGA Repair information http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=17843 We have 6,000 TI BGA's to remove from a PCBA and reball for reuse. TI DaVinci BGA, DIG, Media, 284 ball part number TMS320DM8148SCYEO Does anyone have a formal repair procedure or knowledge of such rework for such a part they would be willing to share? TI is not being helpful. Mon, 15 Dec 2014 18:23:38 GMT BGA Rework affected by cold weather? http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=17835 HI, I work for a company in New England and recently had a unusually large number of boards fail after replacing a BGA on them. We use a AirVac DRS25 to remove and replace the BGA witch uses local forced hot air. We usually have at least a 90% success rate doing an average of 15 a week. within the last month we've 2 days a week or two apart were the 3 of the 4 boards failed after rework. Both days happen to be the coldest days we've had so far this year, however all parts and machinery are kept withing our temp and humidity controlled building. Also all solder joints apper good through X-Ray and prism camera inspection. Has anyone herd of something like this before and/or have experience with this type of failure? Mon, 15 Dec 2014 18:22:36 GMT ODU Control Box Process http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=17845 I want know What is the process of the ODU Control Box Assembly. specially after wave soldering process i need.any one can help. Sat, 13 Dec 2014 02:05:23 GMT SunLED Enig termination and pcb finish reflow issues http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=17844 Fri, 12 Dec 2014 10:52:56 GMT DIMA 0406 is a good machine or not for doing lead free reflow http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=17839 Hello Folks, I am getting a Passaat SMRO-0406 reflow machine for auction. So i would like to know is this machine good or bad for doing the lead free re-flow process. The vendor said this machine is 2000 model. We wanted to do the board with size - 14" X 13". Please let me know all the reviews and help me out!! Thanks Thu, 11 Dec 2014 13:49:48 GMT Royonics assembly http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=17825 Does anyone in the U.S. still service these machines or have parts for them? Thu, 11 Dec 2014 10:30:30 GMT Viscom S6034 http://www.smtnet.com/Forums/index.cfm?fuseaction=view_thread&CFApp=1&Thread_ID=17832 Hello, is there anyone that is able to help me with error I am getting when I try to turn AOI (Viscom S6034)? I couldn't find anything about Viscom anywhere on internet. I don't have manual either. Sincerely regards, Vladica. Thu, 11 Dec 2014 02:24:37 GMT