Electronics Forum: custom (Page 4 of 408)

Engineering Change Notification - Required Timeline?

Electronics Forum | Wed Apr 03 05:47:31 EST 2002 | ianchan

Hi Guys, We have a customer who is requesting us to issue a document ECN (engineering change notification) record to them, IF we have any changes in : 1) direct materials used, 2) indirect materials used, 3) machine configuration, 4) change in SMT L

AFTER CONFORMAL COATING ,THE PCB CAN BE RELOWED 230 DEG C PEAK AGAIN. IT IS ADVISABLE

Electronics Forum | Mon Jun 18 08:33:25 EDT 2018 | geethu

Hi,We are in RFµwave assembler and one the customer requirement need conformal coating cover the chipcomponent metalisation solder fillet. We made as per customer requirment and ship the parts to customer. Again the customer do pick & place our compo

Re: HELP ( SOLDERING ISSUE)

Electronics Forum | Thu Oct 26 17:50:50 EDT 2000 | Dave F

Sal: Two things: 1 Duct tape the scope to the back of your customer�s head so he / she can�t find stuff like this. 2 Profile that lead.

Why would an end user (customer) buy from a Broker v Rebuilder/Seller?

Electronics Forum | Wed Jan 26 13:18:51 EST 2000 | Tom Ravener

It will be interesting to hear from customers (users) "Brokers" and "Rebuilder/Sellers" alike. Feedback please and no spams.

White residues

Electronics Forum | Tue Apr 23 00:45:48 EDT 2002 | ianchan

would like to do a paste change, yet this paste was defined by the end-end-customer. this makes it one heck of a ECN paper trail just to start the evaluation DOE of new paste for this *customer project* group. ah, the politics of working life... wond

Conformal Coat Masking

Electronics Forum | Mon Aug 04 11:31:42 EDT 2003 | pbarton

The masking boots can be obtained from Sinclair and Rush - their web address is http://www.sinclair-rush.com Regarding the type of conformal coat material you require that is down to the service environment/product life expectancy etc. etc. What do

HASL Fiducial Disposal

Electronics Forum | Mon Jul 29 17:00:27 EDT 2002 | dsorg

We're a contract manufacturer, so we are at the mercy of our customers sometimes. We strongly encourage fiducials on the board instead of the rails, but sometimes the customer doesn't want to spend the time or money to do it.

Plated through via's in pads.

Electronics Forum | Wed Feb 05 19:43:34 EST 2003 | iman

If by the Powers Ta Be (customer/designer), you can't change the PCB design, negotiate for the PCB fab house, to block the via holes with their (green?) solder mask some customers/designers want to have via holes to be present in the PCB pad, due to

Steaming boards

Electronics Forum | Thu Apr 24 13:07:48 EDT 2003 | Mr. B

Yes it is Di water and is tested after washing. The customers boards pass inspection testing before the wash but the customer likes to see them CLEAN.

Hasl thickness trends

Electronics Forum | Tue Sep 16 15:47:17 EDT 2003 | davef

First and most important, it doesn't matter dip who is down-wind of the rendering plant. The customer said, "I want bla bla bla." The supplier said, "I want to supply to the customer's order for bla bla bla and will deliver to that specification on


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