Electronics Forum | Thu Aug 09 09:14:22 EDT 2018 | ks0707
Is there any special machines/equipment which are able to install FBGA parts on the very thin flex boards for Printing, Pick & Place, and Reflow ? Q2> Is there any Fixture house who can offer fixtures to enable SMT processes for those assemblies ? Q
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 | Sun Feb 11 23:32:43 EST 2007 | M.Haris
1. 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? 2. If SMT components are mounted on non-rigid FLEX PC
Electronics Forum | Tue Nov 17 15:27:20 EST 1998 | Barry Kauffman
Can someone please tell me where I might find detailed information on the processing of a double-sided flex circuitry design. I am looking for specifics such as methods of fixturing,printing,placing and reflowing.Things to keep in mind when processin
Electronics Forum | Thu Nov 19 17:36:03 EST 1998 | Christopher Lampron
| Can someone please tell me where I might find detailed information on the processing of a double-sided flex circuitry design. I am looking for specifics such as methods of fixturing,printing,placing and reflowing.Things to keep in mind when process
Electronics Forum | Tue Jan 21 13:43:12 EST 2014 | rgduval
Jorge, Your description of the process sounds about right. A fixture to hold the flex cable taut (and in a repeatable location) that allows you to paste/place/reflow is essential. As for notes: Be hyper aware of moisture/humidity in regards to
Electronics Forum | Thu Nov 14 12:55:03 EST 2019 | SMTA-Tony
Very late but here's my 2 cents. Will require a custom fixture for every flex or semi-rigid flex. Depending on panel thickness; use 2 tooling hole to fixture on one axis, other tooling holes will have pullers to ensure proper placement. Even with the
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 | Tue Oct 16 17:38:42 EDT 2001 | lileubie
Depending on the type of teflon material, thickness, and reflow profile requirements, these will have a direct bearing on your maximum process allowable PCB pallet size. You'll want to be careful on how big the PCB or pallet is. Larger teflon PCBs
Electronics Forum | Fri Oct 01 08:15:02 EDT 2010 | rgduval
Is the stiffener a piece of FR4, or a component that needs to be installed? We've done a number of flex assemblies taht have a rigid stiffener, generally a piece of rigid flex, or FR4 that has the components mounted on it. This type of stiffener
