Electronics Forum | Wed Dec 06 22:35:05 EST 2006 | davef
Questions are: * When you say, "corner of some board's BGA chips", is it on the top of the package or between the board and the bottom of the package? * If between the board and the bottom of the package, does it span the distance between the board a
Electronics Forum | Wed Jul 16 09:55:05 EDT 2003 | swagner
To answer the first post after my initial response we haven't published any of our lead free data since it is proprietary, sorry. As for the nitrogen cabinet it has been proven that over time the Gold plating can build up a layer of oxides that can
Electronics Forum | Fri Oct 01 13:09:18 EDT 2010 | clampron
Good Afternoon, How is the stiffener adheared? If it is laminated to the flex, it may help you with the surface planarity through reflow. If it put on with PSA, it may cause more problems then it would solve. PSA gets soft through the reflow. It may
Electronics Forum | Mon Jan 20 17:41:38 EST 2003 | James Springer; Advanced Technology Manager
Has anyone ever placed and reflowed a 1.27mm PBGA to 6 mil poly flex bonded to aluminum? If so what is the life expectancy of the solder joints?
Electronics Forum | Mon Mar 08 17:01:27 EST 1999 | Christopher Lampron
| I need to attach / assemble Flexible circuit onto Rigid PCB without use of any connectors i.e. fingers / tracks of Flexible circuit are to be attached / directly to the fingers of the Rigid Glass Epoxy PCB. | | I need info on the alternate proces
Electronics Forum | Mon Dec 20 07:09:03 EST 1999 | Christopher Lampron
Ron, The simplest way to process fexible PCB's that I have found is to use a process carrier fixture. There are companies that manufacture process carriers that are capable of holding flex through stencil, placement and reflow. The carriers are capab
Electronics Forum | Mon Feb 12 11:12:16 EST 2007 | davef
Q1. After reflow some boards start producing bumps/bubbles which damage the internal layers causeing PCBs failed in Electrical-testing. How can I eradicate this problem from my assembling process? A1. Find a proper board supplier. Q2. If SMT compon
Electronics Forum | Thu Jul 17 09:26:28 EDT 2003 | Mike J
Mike: We have provided many carriers for flex circuit applications to facilitate processing through screen print, pick-and-place and reflow and, in many cases, eliminating the need for taping the flex circuit to the carrier. Please contact me and w
Electronics Forum | Mon Jan 20 11:07:18 EST 2014 | jorge_quijano
Hola We will start producing flex cables soon for a new project, we've never built them in house, we have no experience in this field, most of our products are PCBA & Backplanes. I'm guessing that I can run this cables using a fixture to secure the s
Electronics Forum | Fri May 02 12:41:16 EDT 2003 | Chris Lampron
Hi Chris, I had worked for a flex circuit house for 10 years. You should be able to follow your solder paste guidelines for times and temps. You may want to consider pre-baking the flex if it is made with Kapton. Kapton is Hygroscopic and will delam
