Electronics Forum: warp and management (Page 9 of 15)

Re: Farewell and thanks to all

Electronics Forum | Wed Sep 08 14:21:21 EDT 1999 | JohnW

| | | | Last Thursday I resigned from my position as manager of SMTnet. I want to personally thank all SMTnet viewers, editors, customers, colleagues, and others for your support to me in the creation and expansion of SMTnet over the last four years

Solder Paste and fine pitch components

Electronics Forum | Wed Sep 18 10:06:30 EDT 2002 | Bob M

I place 15-20 mil a lot. You need to look at your pad to apature reduction. Your stencil thickness. The type of paste your using. We use 2-5 mil reduction on each side as a general rule on fine pitch. This varies depending on pad width. We also use 5

IPC Standard for Acceptable and Reject Criteria

Electronics Forum | Wed Nov 03 09:18:27 EST 2004 | Simon UK

Hi Dennis, It is all dependant on what you state for the class of product i.e. Class 3 is the top end acceptance criteria used mainly in Aerospace and Military. You have 2 terms you need to grasp to avoid confusion. 1. Acceptance Criteria 2. Target

and you think youve got it hard

Electronics Forum | Wed Jul 05 11:37:38 EDT 2006 | dougs

I my last company i had to battle all the time for tooling to set up jobs, i asked the product engineering manager to include extra panels in the costs for NPI to be used as reflow profiling panels, he told me they had never needed these before and t

Low cost automatic pick and place

Electronics Forum | Fri Feb 26 08:30:10 EST 2010 | davef

Low cost prototyping * TWS Automation Quadra [www.tws-automation.com 39 0585 634758] * Versatronic RV4 [VSMT Solutions Ltd; 6 Dean Way, Aston Clinton, Aylesbury HP22 5GB, Buckinghamshire; 01296 630341 F01296 632144 http://www.vsmt.co.uk; David Clemen

YesTech F1 AOI false calls and misses

Electronics Forum | Wed Apr 04 13:33:12 EDT 2012 | rway

We currently have 2 M1 systems. Our false call rate has never been has high as you suggest. There is something wrong with your program and/or inspection algorithms, as you probably already know. You should be somewhere between 1000-1500 vcpmo (fal

Re: FAQs, archives, and the never-ending story

Electronics Forum | Thu Aug 24 19:59:48 EDT 2000 | Earl Moon

Finally, Two big time, intelligent responses to my crap. Wolfgang, you do it right by answering real questions with real stuff. Steve, unless you are JAX or SUN (one in the same), those are fair comments. I do not mean to frighten anyone off the fo

and you think youve got it hard

Electronics Forum | Thu Jul 06 13:29:42 EDT 2006 | Chunks

Unfortunately it's not what you know, but who you know. Sounds like it in your case. Tread lightly as this guy may become your boss. It happened to me. New guy comes in, couldn't tell the "red stuff" from the "gray stuff" (adhesive / paste in cas

Re: Bow and Twist of PCB's

Electronics Forum | Wed Aug 19 08:00:55 EDT 1998 | Earl Moon

| Hi there, | I'm actually facing a lot of trouble with PCB's presenting up to 3mm of bow /twist at reception i.e. before assembly. The PCB size is 220 by 230mm. The boards are to be assembeled SMD double sides with 05.mm pitch on both sides. In orde

Terms and Conditions for Built-to-Print Jobs

Electronics Forum | Wed Mar 12 10:34:42 EST 2003 | Stephen

I want to be clear. You are talking about buying fully populated cards? And not just bare boards. Approach different CM's and compare contracts. You can pretty much get anything from "build from kit" where all the CM does is assembly, to complete s


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