Electronics Forum: nipd finish and lead paste (Page 1 of 4)

Palladium finish and solder balls

Electronics Forum | Thu Jun 27 21:28:42 EDT 2002 | davef

You're correct that the Ni/Pd termination seems to have something to do with you solder balling. It could be related to the interaction between your paste and the Pd. I assume these are really 'fines' rather than 'balls'. Things that come to mind a

paste Sn42/Bi58 and Lead Finish

Electronics Forum | Fri Nov 02 03:26:40 EDT 2012 | spopov

Hello! We want to try Lead Free paste Sn42/Bi58. Can we use this paste with Lead fihish such as HASL. I am worry about low melting temperature of 138C.

paste Sn42/Bi58 and Lead Finish

Electronics Forum | Tue Nov 06 22:14:10 EST 2012 | nikyta

Hi Popov, can you tell us the reason for the use of Sn-Bi ?

Kester R562 and using lead free components

Electronics Forum | Fri Jul 06 13:44:15 EDT 2007 | shrek

Krikies! seems like a head-scratcher if I may say so me-self. I would say the other ogre is right, that surface finish will play a big factor in your solder joint's grain structure or how shiney 'tis. Non-HASL bearing finishes will typicaly exhibit

paste Sn42/Bi58 and Lead Finish

Electronics Forum | Thu Nov 15 03:07:35 EST 2012 | nikyta

Thanks for your reply. As already said by Anvil1021, is not a good idea to mix Lead and Bismuth! Stay away from Bismuth if you have even the slightest traces of Lead on yours PCB, stencil, squeegee, spatula, blade, cleaning paper or cleaning cloths,

paste Sn42/Bi58 and Lead Finish

Electronics Forum | Wed Nov 07 15:01:18 EST 2012 | nikyta

Thanks Dave , my question is about Spopov want to try "Lead Free" SnBi (but uses it on Leaded finishes), but is worry about its low melting point (at this point, no longer 138 degrees as he wrote, but rather in an unknown and unpredictable range bet

paste Sn42/Bi58 and Lead Finish

Electronics Forum | Wed Nov 14 03:26:38 EST 2012 | spopov

Ryan, in some cases we use 2 pastes with different melting temperature (LF SAC and PbSn)for complex boards with components on two sides. And we want to try to replace LF SAC with low melting paste.

paste Sn42/Bi58 and Lead Finish

Electronics Forum | Fri Nov 02 09:09:56 EDT 2012 | davef

Sure you can use it it with leaded HASL. Recognize that ... * Your Sn42/Bi58 will no linger be Sn42/Bi58 * Your leaded HASL will no longer be the same leaded HASL that walked in the door to your plant * Lead from HASL coatings can diffuse through the

paste Sn42/Bi58 and Lead Finish

Electronics Forum | Fri Nov 02 14:46:18 EDT 2012 | ericrr

So how does this (lead free paste Sn42/Bi58) solder compare with the Sn-Ag-Cu (Tin-Silver-Copper) combination which does not flow as well (in the oven), needs higher oven temperature, (that can be adjusted by reducing the oven chain speed) and cost m

paste Sn42/Bi58 and Lead Finish

Electronics Forum | Tue Nov 06 22:37:35 EST 2012 | davef

Ryan ... "As for bismuth-based lead-free alloys, a lower melting temperature than that of tin-lead is offered together with a cost similar to that of tin [in the area of $3/lb]. Unfortunately, bismuth in soldering alloys tends to create embrittlemen

  1 2 3 4 Next

nipd finish and lead paste searches for Companies, Equipment, Machines, Suppliers & Information



High Precision Fluid Dispensers
Industry 4.0 Reflow Oven

High Throughput Reflow Oven
Non-heated dispensing system

High Speed Precision In-Line SPI System - Mirtec MS-11
Fluid Dispense Pump Integration

Outstanding liquid dispensing and UV curing, all within one platform, watch the video.
pcb assembly supplies

Software for SMT placement & AOI - Free Download.
BGA and SMD Rework Stations

PCBA services - from simple board assembly to complex product development and testing