Electronics Forum | Tue Feb 16 14:04:10 EST 2016 | tsvetan
We are designing board which have to plug in M.2 connector and thickness is limited to 0.8 mm The board is very complex with many BGAs and DDR3 memory chips and we will need 6 layers for routing. The problem is that we will need signals with 50, 90
Electronics Forum | Sat Oct 22 22:10:09 EDT 2011 | unisoft
Hi maybe this will help Rich larue rlarue@unisoft-cim.com ProntoGERBER-CONNECTION ( http://www.unisoft-cim.com/gerber_connection.htm ) imports raw Gerber data and allows the user to add intelligent information to the shapes on the display and c
Electronics Forum | Fri Dec 12 01:06:02 EST 2003 | kenny
Dear folks; I am currently looking a PCB manufacturer who can fabricate PCB with the following specification:- Board sizes: _20000__ x _20000__ mils Thickness: 125 mils PCB material: FR4 Surface finish: 30 microinches Gold over 200 micro inches Nic
Electronics Forum | Mon Apr 23 17:30:08 EDT 2001 | davef
Step 1: Print paste on the board, skip placement, reflow the board, check solderability. Step 2: Goto Step 1. White Tin Solderability: The most common reason for solderability issues with the white tin surface coating during multiple thermal excur
Electronics Forum | Wed Jun 03 14:37:53 EDT 1998 | Anthony
I really appreciate everybody taking the time to help me out with this problem. I'm going to run your input by the design engineer, after that I may be taking you up on that offer to contact you Earl. Again; thank you! Anthony | If your board is si
Electronics Forum | Mon Dec 31 09:00:06 EST 2001 | davef
Baking before assembly does nothing good. It: * Increases costs. * Adds steps to the process and makes scheduling more cumbersome. * Increases the amount corrosion on solderable surfaces. We used to bake to remove the moisture from boards that caus
Electronics Forum | Fri Aug 21 00:27:09 EDT 2009 | boardhouse
Hi To Start Min Tg is just a portion of picking a lead free material, the other is Td. We recommend the following to our Customers. 2-8 layer 150 Tg. Min. / 340 Td. 8-Up. 170-180 Tg.Min. / 340 Td. The above recommendations have been used by man
Electronics Forum | Fri Jan 29 15:39:04 EST 1999 | Chris Jackson
I have a recent design (1 component side only) that calls for 2 surface mounted antenna's (brass plated) to be mounted on a PCB. The problem arises when the PCB is 18x11.25 and has 15 to 20 PCB's in the pallet (IE weight, fixturing to hold the anten
Electronics Forum | Sun Aug 23 11:30:51 EDT 2009 | ysutariya
I think you're getting steered in the wrong direction, with the exception of DaveF's link. By the way, I'm a PCB fabricator, just to avoid any backlash. IPC 4101 is the IPC guideline for raw materials. It has 6 slash sheets for lead-free capable
Electronics Forum | Wed Jul 13 09:38:21 EDT 2022 | madisreivik
Page 18 http://www.mpk-pcb.de/en/download/mpk-kemmer-pcb-tools-catalogue-2019/ And maybe try "downforce" EA30-L type, as the cutting path is very short. Short lengths you can cut dry. Just use manufacturers recommended feed/speed and DO NOT reduce
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