Electronics Forum | Tue Dec 26 11:09:16 EST 2000 | acahill
High temp paste or not, I feel it's all up to the oven,and/or the stencil design. are there sufficient solder joints, before running the opposite side (are the apertures large enough to achieve a hardy fillet or to small, allowing enough paste to vis
Electronics Forum | Tue Dec 26 15:22:43 EST 2000 | Hussman
Vickij, Why not try using regular temp. paste for both sides? Unless you have some real heavy parts on both sides, you can run a double-sided reflow process with most boards. I myself like to place R's and C's first (or bottom side) and then do an
Electronics Forum | Wed Oct 16 13:16:11 EDT 2002 | davef
Hey Mar, Sounds serious!!! Poke around Buehler, Leco, or Struers Try IPC TM-650 Test Methods Manual: 2.3.6A Etching, Ammonium Persulfate Method - 7/75 2.3.7A Etching, Ferric Chloride Method - 7/75 2.3.7.1A Cupric Chloride Etching Method - 12/94
Electronics Forum | Wed Apr 14 20:24:48 EDT 2004 | Ken
What do you mean the solder must "survive" 260C? What is your target temperature? Is it dictated by a component, the substrate or the solder alloy? Do you require a eutectic alloy? If not, the selection of alloys grows. (these are from memory...n
Electronics Forum | Tue Oct 13 12:32:43 EDT 2009 | davef
2.6.3 Test Pad Location Tolerances, third bullet. Why does Entek require different test point spacing than other surface finishes? Page 55, top image is off the page, partially. 2.3.6 Depanelization of Arrays, 10th bullet [Breakaway Scoring] refers
Electronics Forum | Sun Aug 07 01:49:58 EDT 2011 | xboxhaxorz
http://intelpr.feedroom.com/?fr_story=236a12fb4342ce6a578b40e8b7121d14c0bab751 Watching this video, i was wondering which type of flux they use for cleaning and for reattachment. I was unable to find the flux they use. Shown at 4:17 4:29 8:59 If un
Electronics Forum | Tue Jan 20 04:43:33 EST 2015 | gragal
I need to replace a device which is in a 6-pin package which looks like SOT 23-6 / SC-74 style. The markings are D102/ 214B (D102 above 214B). I have checked numerous references to no avail. I think that the device is a comparator or op-amp with V
Electronics Forum | Thu Mar 06 09:25:13 EST 2014 | davef
Stencil, Electroformed * AGI, 177 Nick Fitcheard Rd, Huntsville, AL 35806; 256-858-3300 F256-858-3304 agicorp.com * ALPHA® Form™ alpha.alent.com * Chepaume Industries, 6001 Airport Road, Oriskany, New York 13424; 315-768-7001 F315-768-0270 info@chepa
Electronics Forum | Tue Jan 02 14:50:37 EST 2001 | fmonette
Dear Vicki, If you decide to use high temp paste, I suggest that you verify the rating of the components, especially for moisture-sensitive devices which are normally qualified at peak reflow temperatures of 220-235C. The specified floor life will
Electronics Forum | Fri Feb 12 08:56:57 EST 1999 | Stefan Witte
You'll have to have a special nozzle made in order to pick the header from the feeder. The nozzle should pick the part throught the pins on the plastic body. I had once a nozzle made for the same application and placed the parts without any further a
