Electronics Forum: flux residue on ceramic cap (Page 1 of 1)

Non-wettig on chip cap.

Electronics Forum | Mon Dec 10 16:44:51 EST 2001 | davef

Good for you!!! Similar to Steve's comments ... 1. NON-WETTING DEFECT: Yes. Your Lonco is a �stand and deliver� flux. Not some limp wrested impersonation of a flux like most nc fluxes. Without speculating about �incompatability�, recognize that

Non-wettig on chip cap.

Electronics Forum | Mon Dec 10 13:56:51 EST 2001 | slthomas

1) The additional activity of the OA flux probably took care of the oxydation. How do you plan on taking care of the presence of conductive and corrosive residues from it now, though? You're not supposed to wash those parts with water. 2) The tomb

adhesive on pads

Electronics Forum | Mon Apr 01 20:10:24 EST 2002 | davef

Oh. [Howabout if I smack you?] If ahma connectin� wif whut yer sayin�, you: * Don�t like the appearance of the glue slobberin� out from under the component even though there is no apparent glue on solderable surfaces. * Concerned about the hydrosco

Re: Adhesion loss on passives over wave

Electronics Forum | Mon Mar 22 18:03:15 EST 1999 | Marc

| | | | | Hi folks, | | | | | | | | | | I am looking for inputs on a long-standing problem encountered in our shop: Bottom-side parts (passives) falling off in the Wave...where the only remnants of the part is a flattened glue dot of proper diamet

Touch up on 0603 Chips ( Ceramic caps)

Electronics Forum | Mon Jan 31 14:08:26 EST 2000 | Ashok Dhawan

I have got a number of assemblies back from a customer with feedback that the solder fillet is less than 25% of chip height per IPC-Standard-610B Class 2. Most of my joints are having good wetting but fillet height does not meet min ht requirement of

Re: Touch up on 0603 Chips ( Ceramic caps)

Electronics Forum | Tue Feb 01 21:44:54 EST 2000 | Dave F

Ashok: A fine mess you gotten us into now!!! ;-) You have no good options. BEST OPTION: Get the customer to accept the boards "as is." Rework will only degrade the product. Agree to accept all liability related to this solder condition (which y

Re: Touch up on 0603 Chips ( Ceramic caps)

Electronics Forum | Wed Feb 02 11:48:48 EST 2000 | Christopher Lampron

Dave, Ashok mentioned that the end termination of the component were dull and grey. I have had similar problems with Murata components exibiting the same characteristics on the end terminations. As it turns out, they have some exotic plating material

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