Electronics Forum: chipbonder and curing (Page 1 of 9)

WSOL and solder pot

Electronics Forum | Thu Mar 13 09:43:13 EDT 2008 | jseagle

If the mask is not cured and is coming off in the pot I don't see how it is protecting anything. If you want to mask something fast you need to use tape not liquid mask that requires cure. My $.02.

Reflow glue and past.

Electronics Forum | Tue Feb 08 12:36:28 EST 2000 | Charlie

I'm looking for information from both those who do cure glue and reflow past with the same profile and those who have tried and decided against it. What were the problem? What are the limitations?

Conformal Coat and RTV

Electronics Forum | Wed Jan 03 15:11:09 EST 2007 | kennyg

Is it acceptable to apply an acrylic conformal coat, cure and then apply a silicone RTV on top (for staking tall components)? Should there be a concern with the bond between the acrylic and the RTV?

WSOL and solder pot

Electronics Forum | Fri Mar 14 11:18:29 EDT 2008 | operator

The way it works is the liquid solder immediatley cures (or should I say burns) the WSOL where ever it touches it. This hardens and keeps it in place and protects whatever is under it. Some of the WSOL falls of in the pot. I am suprised that the burn

No Clean and Underfill

Electronics Forum | Fri Mar 19 10:27:42 EDT 2010 | karlo

No clean pastes leave more flux residues. These can result in void formation and inhibtion of underfill curing. Selection of an underfill that is compatible with the flux residue is important. One company that has written about the effect of flux

Conformal Coat and RTV

Electronics Forum | Wed Jan 03 21:20:22 EST 2007 | davef

Comments are: * General purpose RTV (RTV-108) releases an acetic acid (vinegar) during cure and corrodes copper, brass and sensitive metals. It is therefore NOT for use in delicate electrical or electronic applications. However, there is an electrica

COB and wire bond

Electronics Forum | Mon May 07 22:29:52 EDT 2001 | davef

4 wire per sec ... you figure how many you need] Encapsulation ~$120K for a dispenser [10 sec per die ... you figure how many you need] plus a cure oven ~$100k Throw in a another ~$100k for marking and cleaning Check the September 2000 SMTnet New

WSOL and solder pot

Electronics Forum | Wed Mar 12 12:28:52 EDT 2008 | operator

I recently witnessed a process in which the solder pot operator used Techspray WSOL water soluble masking to cover the areas around a connector that was to be soldered on the solder pot. He did not wait for the WSOL to cure. He soldered immediately.

Cure Ovens and Cycle Interuption

Electronics Forum | Fri Dec 17 13:23:15 EST 1999 | Chris

I have an underfill material which takes 6 hours to cure. It works great, better than any other underfill I have ever used. A vertical cure oven is too expensive. I am currently using batch style ovens and opening the oven door as additional produ

Re: MoonMan and Tetras

Electronics Forum | Tue Apr 27 05:26:14 EDT 1999 | Charles Stringer

| | Hey MoonMan, | | | | Did I catch in one of your fabulous threads that you're using Tetra stencils? I'm anxious to find out how you're liking them. | | | | We we're all set up to go to Tetras, then mgt decided to close down our factory - Dooop!

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