Electronics Forum: help (Page 681 of 1170)

Stencil Printer comparison

Electronics Forum | Wed Nov 20 12:56:58 EST 2002 | jasper

In my opinion MPM is superior as far as programming the 2D inspection. It's fast, simple and reliable. The DEK has options like Formflex. The MPM only offers adjustable vacuum box. It's difficult. 2nd hand prices are not similar. We offer used/refurb

Help! BGA Socket / BGA Direct Placement

Electronics Forum | Mon Nov 11 13:46:43 EST 2002 | ksfacinelli

I have a interesting problem. I have a client that would like us to build 15-20 prototypes of a fairly complex design that contains a Enplas OTB-289-0.8 BGA socket. The problem I have is the customer does not have enough sockets and is asking if we

Solder Preforms

Electronics Forum | Tue Nov 19 10:25:45 EST 2002 | mcmilse

I have a question abut flux and solder preforms. We build some assemblies that have deep pockets in which we use solder preforms and add flux before placing parts and then onto reflow. I was wondering if anyone knows anything about how much flux sh

Storage Equipment

Electronics Forum | Mon Nov 25 02:28:08 EST 2002 | kenbliss

Hi Ben There are many sources for storage equipment related to SMT assembly. Bliss Industries offers one of the most complete lines anywhere and sells factory direct. We have a detailed website http://www.blissindustries.com that includes Bliss Un

Voids in every Lead-free BGA solder Joint

Electronics Forum | Fri Nov 22 15:59:43 EST 2002 | GSW

What type of reflow profile are you using ? There is a void reduction profile recommeded by some paste manufacturers, Try that it might help. Did you check the components or the board and see if they have absorbed mositure ? try baking the boards and

Voids in every Lead-free BGA solder Joint

Electronics Forum | Mon Nov 25 22:08:05 EST 2002 | Ben

Thanks for the advise. I got the advise from my solder paste vendor to increase the time above melting point for flux outglassing to escape. I tried but no big help. For the moisture issue, actually I've try to bake both the PCB and components at 12

IONIC CLEANLINESS SPEC FOR BARE PWBs

Electronics Forum | Tue May 18 09:13:08 EDT 2004 | E Wolf

I'd like to follow the thread discussed on assembly. Hope Everyone is ok with that. I do run into the problem (have it now) that Ionic cleanliness is requested by print on a no-clean assembly. My intention is to use the no-clean to skip the aqueou

Walkmen In Assembly Area

Electronics Forum | Tue Dec 10 17:33:55 EST 2002 | soupatech

I work alone in my SMT department so I listen to whatever I want, and loudly. It helps me work I believe. BUT..... You have to take each case seperatly. I know some people I could trust to do a good quality job while asleep. But then you have those t

Walkmen In Assembly Area

Electronics Forum | Mon Dec 16 06:53:23 EST 2002 | lloyd

We simply don't allow any 'walkman' type systems to be used by anyone in our factory. It's simply from a health and safety point of view. Think of this scenario: everyone in a department wearing walkmans, a fellow worker in someway gets injured/falls

Chain Cleaning

Electronics Forum | Wed Dec 18 15:00:17 EST 2002 | Chris Lampron

Good Day, We have been searching for ways to do this very thing. We have sent them out for cleaning in hot baths, ultrasonics, pressure wash, etc... The chains have come back cleaner than they left but not perfect. At one point, one of our engineers


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