Full Site - : flex reflow (Page 20 of 48)

Reflow

Electronics Forum | Tue Oct 10 07:30:19 EDT 2017 | spoiltforchoice

TBH I think perhaps the OP deserved it, there is perfectly good explanation of Reflow and Process Window Index on Wikipedia for starters and if you want more all sorts of FREE specialist papers on things like reflowing flex circuit, lead/lead free et

Unwetting leads of Palladium Plated Pins

Electronics Forum | Mon Mar 01 11:03:51 EST 1999 | Dennis Xiong

Hello! SMT professionals, I do not know if anyone posted this question before. Last week, I reflowed our newly designed thin Rigid-Flex pcb with 0.040" thickness. I found all of pins of a TQFP48 ic did not get wetted. I could see on the heel side o

Unwetting leads of Palladium Plated Pins

Electronics Forum | Mon Mar 01 11:03:22 EST 1999 | Dennis Xiong

Hello! SMT professionals, I do not know if anyone posted this question before. Last week, I reflowed our newly designed thin Rigid-Flex pcb with 0.040" thickness. I found all of pins of a TQFP48 ic did not get wetted. I could see on the heel side o

672 PBGA on PC Card .015 thick pcb

Electronics Forum | Thu Oct 11 22:25:50 EDT 2001 | davef

Bruce I�m with yall. Designers and fabricators say �pins�. You say: * BGA pins are 1mm [0.039�] pitch. * BGA pads are 0.4mm [0.0157�] diameter. * BGA pins are 0.6 mm [0.024�] side-to-side. * Board thickness is ~0.4 mm [0.015�] First, as you can

Rigid Flex Application

Electronics Forum | Fri Sep 15 21:24:28 EDT 2006 | realchunks

Use a back door connector. Place and reflow the connector like any other. But, the PC bosrd is cut open directly under the connector allowing the male portion to go thru the PCB and mate with the female connector. Both PCBs would have SMDs mounted

rigid-Flex board via problems

Electronics Forum | Thu Jan 12 13:18:07 EST 2012 | swag

215 to 220 deg.C peak reflow. We bake then store all PCB's in low humidity cabinets (appox. 3% RH) prior to running.

Temperature Profile for 0.2mm Thick ENIG Flex PCB

Electronics Forum | Thu Jan 30 10:12:00 EST 2020 | emeto

More detail Jinesh. Profile, datasheet of the part, stencil design, PCB finish, soldering material. Initially I am assuming you use pallet to reflow 0.2mm thick board.

Assembly of flexi (flexible) circuit boards

Electronics Forum | Thu Jun 26 09:04:43 EDT 2003 | caldon

We had a "Spring loaded" fixture that pulled the Flex tight and used loads of Board supports. There were pins that went through the Connectors holes and held the flex firm. We only had a few components so it was no problem. Lucky for us because the f

Flex circuits

Electronics Forum | Sat Jul 03 10:03:22 EDT 2004 | Bryan Sherh

Things to consider are: * Thermal expansion > characteristics of you flex and your pallet > should be better matched. We use G-10. * > Placement of your two sided tape should be > better, more uniformly distributed. We run strips > the length o

Solder print for TAB Bonder

Electronics Forum | Thu Apr 13 13:02:03 EDT 2000 | Paul Peterson

Hi fellow problem solvers,... We suspect a planarity problem with our 6 mil wide flex circuit pads having height variance of up to 2 mils after print and reflow. This is contributing to a placement skew with our TAB bonder... Has anyone had any succe


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