Electronics Forum: depanelization (Page 41 of 41)

Re: PCB panellisation

Electronics Forum | Sun Apr 05 14:57:10 EDT 1998 | Earl Moon

We are in the process of deciding whether to change a PCB product from a single board to a 3 up panel array. Could you please advise on the most effective removal design, either scoring or snap off, taking into account that material utili

Cracked ceramic chip capacitors.

Electronics Forum | Thu Apr 10 05:25:43 EDT 2003 | dst

Hi, My company is currently experiencing a high feild failure rate on a 100nF chip ceramic that we use in various applications across our product range. One of them being de-coupling which means we use millions of this device every month. The failu

what is the max print speed? thanks for your help

Electronics Forum | Sat Nov 17 12:58:12 EST 2007 | mika

I agree with previous postings regarding print speed: Solder paste type/versus fine pitch. Question: Is this a double sided pcb with fairly easy component packages on both sides? In such case, consider make the panel like this: Every second pcb in

Resonator Cracking

Electronics Forum | Fri Nov 16 03:23:15 EST 2007 | jwsmt

I'm requesting assistance in developing detection and containment methods for an issue with an SMD ceramic resonator (Murata CSTCE-G-A family). The returns have external visual cracks that originate at the termination and run at approximately a 45 d

Minimum Tg for LeadFree board.

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

Re: Issues depaneling

Electronics Forum | Wed Nov 25 17:21:17 EST 1998 | Michael Allen

A word of caution: thick webs (i.e., shallow score grooves) can result in scrapped boards, especially if you've got the dual-wheel-type score breaking machine. I discovered recently that shallow score grooves, combined with DULL knife-edge guides on

Re: PCB panellisation

Electronics Forum | Wed Apr 08 00:49:37 EDT 1998 | Steve Gregory

Well...I think we just about beat this one to death, but I'll go ahead and add a couple more points to "pro-score" camp...WITH the caveat that it HAS to be done right! Yes, I will say that I've had to deal with the wrong spec'd or crappy scor

Re: require suggestions for selecting components for a showboard

Electronics Forum | Mon Sep 21 21:21:32 EDT 1998 | Steve Gregory

am working on the design of a showboard to demonstrate our assembly capabilities. we are working with double sided assemblies involving BGAs and CSPs. could someone suggest types of BGAs/ CSPs (type, name, I/O, etc)that would be a challenge t


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