Electronics Forum: balanced (Page 7 of 41)

Paste drying on stencil

Electronics Forum | Fri Feb 28 03:59:41 EST 2020 | SMTA-Davandran

My input are: i. To solve tape not pulling back if it is due to high per is better to use more feeders to minimize this issue. ii. To slow down printing speed. Hence, has proper line balancing which minimize board idling before pick and place process

Measure humidity for PCB

Electronics Forum | Tue Apr 13 14:49:15 EDT 2010 | davef

90%) from the sample, and the bake time and temperature specified herein are minimums. To improve test accuracy, or to prevent heat damage, other bake parameters may be AABUS. 2 Applicable Documents IPC-QL-653 Certification of Facilities that Inspect

Re: BGA SOLDER BALL to SURFACE PAD size relationship

Electronics Forum | Thu Feb 24 13:28:31 EST 2000 | Dave F

Robert: Ah, opinions are like mothers, everyone has one. Here's mine: 1 Goto the Altera site, get a copy of "AN 114," follow it. Generally, manufacturers are closer to the requirements of their components than others are. 2 Metal showing on the b

Re: Board Warp And Twist

Electronics Forum | Tue Aug 08 20:43:41 EDT 2000 | Dave F

Tom: So is warp or is it twist? They�re different problems, possibly with different sources!!! And possibly different solutions!!! Consultants to talk to are: Earl Moon (pod@vcn.com), Werner Engelmeyer (engelmaier@aol.com), Les Hymes (les.hymes@w

Re: BGA SOLDER BALL to SURFACE PAD size relationship

Electronics Forum | Thu Feb 24 13:28:31 EST 2000 | Dave F

Robert: Ah, opinions are like mothers, everyone has one. Here's mine: 1 Goto the Altera site, get a copy of "AN 114," follow it. Generally, manufacturers are closer to the requirements of their components than others are. 2 Metal showing on the b

Second Pass In Wavesolder

Electronics Forum | Mon Dec 31 08:51:58 EST 2001 | davef

Warp depends on: * How close the board gets to its Tg during the solder cycle (the closer you get to the Tg the worse the warp gets) * Amount of copper on each side and the balance between the two * Thickness of the board * Overall length x width * T

A Meaty one for you clever guys in production

Electronics Forum | Tue May 17 16:46:52 EDT 2005 | davef

Most placement machine equipment suppliers offer software for line balancing. What's with Fuji? Fujitrax is a system developed in order to attain high levels of "progress management, quality management & traceability" over several SMT lines, throug

LED Stick To Cover Tape

Electronics Forum | Mon May 17 13:34:22 EDT 2010 | davef

If it's not adhesive, try an ESD-type ionizer. The objective of an ionizer is to eliminate surface charge on insulators and on isolated/ungrounded conductors. Practically speaking, the action of an ionizer is to drive the voltage on the surface of a

0.45-10.5 GHz 2 way Power Divider

Electronics Forum | Wed Aug 02 05:25:01 EDT 2017 | pandamw

Model : PD045105-2S 50 Ohm 2 way SMA-Female Power Divider From 0.45 to 10.5 GHz Rated at 30 Watts; 10.5GHz, SMA-Female Power Divider; Insertion Loss 1.0dB; Isolation 20dB; Operating Temperature -40 to +70℃. Frequency Range GHz : 0.45-10.5 Impeda

DC-40 GHz 2 way Resistive Power Divider

Electronics Forum | Mon Aug 14 00:19:29 EDT 2017 | pandamw

Model : PDDC400-292_A 50 Ohm 2-way 2.92mm-Female Resistive Power Divider From DC to 40GHz Rated at 1Watts; 40GHz, 2.92mm-Female Resistive Power Divider; Insertion Loss 1.5dB; Isolation 10dB; Operating Temperature -40 to +70℃. Frequency Range GHz


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