Electronics Forum: halogen (Page 1 of 6)

halogen free substrate

Electronics Forum | Tue Oct 29 11:20:17 EST 2002 | nifhail

Guys, Has anyone considered the specific use of Halogen free substrates for enhanced PCB performance? What is the impact on the PCB price ? Pls help.thank you in advance.

halogen free substrate

Electronics Forum | Thu Oct 31 11:23:32 EST 2002 | yngwie

Any input to my question ?

Non-halogenated PCB

Electronics Forum | Wed Jul 19 11:06:42 EDT 2000 | polymer

Where can I find laminates containing non-halogenated PCB? I'm especially interested in FR-4 and CEM-3, 1.6 mm 25um. Thanks in advance! Dr. Lennart Johansson Polymer Support

Re: Non-halogenated PCB

Electronics Forum | Wed Jul 19 20:30:38 EDT 2000 | Dave F

Lennart: I think most laminators offer a halide free laminate. Two are Isola and Mica-Micanite. Contact the IPC Halogen-Free Materials Task Group

Dibasic Flux Activators

Electronics Forum | Wed Aug 23 09:12:54 EDT 2000 | Dave F

Dr. Lee: When talking about halogen-free flux activators, what does the term "dibasic" mean?

Rosin vs. Resin Flux

Electronics Forum | Thu May 31 12:21:14 EDT 2007 | patrickbruneel

Let me give you some good advice You take already plenty of risk going lead-free, DO NOT use halogen containing fluxes in a lead-free no-clean process. Halogens left on the board will convert tin, silver and exposed copper into metal salts over tim

Halogen-free Solder Re-flow Quality Issues

Electronics Forum | Tue Nov 03 09:49:08 EST 2015 | gregoryyork

how long are your squeegees for 3 - 5Kg pressure?

Halogen-free Solder Re-flow Quality Issues

Electronics Forum | Fri Nov 06 11:56:43 EST 2015 | derrikf

They're probably 12 - 18 inches, maybe slightly longer.

Water Absorption of PCB

Electronics Forum | Thu Feb 15 21:09:45 EST 2007 | Stephen- SMT engineer trainee

1. Can anyone tell me about the water absorption(wt%) among different PCB((i) RoHS, (ii)non-RoHS, (iii) Halogen free)), I am currently facing the problems of PCB blisters after reflow process. 2. Also, please suggest the baking period/time among dif

Halogen-free Solder Re-flow Quality Issues

Electronics Forum | Fri Sep 04 04:39:08 EDT 2015 | grahamcooper22

Maybe look at reducing the time above liquidus to @ 60 seconds. HF materials tend to want tighter reflow profiles...halogen activators are great at higher temps and longer reflow profiles..but HF prefer shorter profiles. The HF pictures look like the

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