1661 .4 mm pitch results

Electronics Forum: .4 mm pitch (Page 1 of 167)

SMD 0.4 mm pitch break out boards

Electronics Forum | Fri May 25 03:28:20 EDT 2007 | shparekh

Hi All, Brand new here. I am wondering if I can find a breakout board for 0.4mm pitch SMD connectors. TIA. -sanjay

SMD 0.4 mm pitch break out boards

Electronics Forum | Fri May 25 08:11:22 EDT 2007 | davef

Welcome. Look here: http://www.smtnet.com/forums/Index.cfm?CFApp=1&Message_ID=28950

PQFP with pitch of 0.4 mm

Electronics Forum | Tue Jan 30 15:30:17 EST 2001 | dason_c

Please check what is the actual pitch size. I found some of the designer use 15.7 mil pitch and no accumulate ie 15.7, 15.7 and 15.8...... Also, I recommended the pad width should be 10 - 11 mil for 0.4mm pitch. You can open the 10 - 10.5 mil aper

PQFP with pitch of 0.4 mm

Electronics Forum | Tue Jan 30 07:55:31 EST 2001 | ibi

I will have to process a PQFP 128 with a pitch of 0.4 mm. Given that the width of its leads are about 0.13-0.23 mm, i dread the worst when printing the solder paste. So, i would like to know if some people have yet test this type of fine pitch, what

PQFP with pitch of 0.4 mm

Electronics Forum | Sat Feb 10 18:33:52 EST 2001 | arturoflores

check the archives (keyword="16 mil pitch") and also consider 45 degree pattern printing. Regards.

PQFP with pitch of 0.4 mm

Electronics Forum | Tue Jan 30 21:14:26 EST 2001 | davef

Suggestions are: * Limit pad width to 0.008" [0.2mm] * Use IPC-7525 Stencil Design Guidelines * Avoid Type 4 pastes, if you can * Slow down your print head to 0.63"/sec [16 mm/sec] * Consider the suggestions on printing by rpereira in the past

PQFP with pitch of 0.4 mm

Electronics Forum | Sat Feb 10 17:12:03 EST 2001 | rpereira

I admit, 16 mil QFP printing is very challenging but if all your control factors (print speed, etc...) are setup correctly (through DOE) extremely high yields can be achieved and more importantly a repeatable and robust product will be manufactured.

Stencil Design for BGA with 0.2 mm Diameter Pad and 0.4 mm pitch

Electronics Forum | Thu Nov 14 10:52:56 EST 2019 | jandon

Maybe something like this could work?

Stencil Design for BGA with 0.2 mm Diameter Pad and 0.4 mm pitch

Electronics Forum | Tue Nov 12 00:49:37 EST 2019 | myke03o

I am optimizing a stencil opening for BGA with 0.4mm pitch and pad diameter of 0.2mm. Can anyone advice of stencil thickness and stencil opening I can use in order to have a good paste release. Thanks for all your answers.