11 100-years results

Electronics Forum: 100-years (Page 1 of 2)

Lead free profile

Electronics Forum | Sat Feb 26 22:32:42 EST 2005 | siverts

The directive is called RoHS. Meaning that is not only the lead that is the issue. The materials need to whithstand a hihger temperature, not only delta T is an issue (but huge). Moisture sensitive devices: how to handle these? You will see an increa

Lead free profile

Electronics Forum | Fri Sep 22 02:19:25 EDT 2006 | lead free tester

The directive is called RoHS. Meaning that is > not only the lead that is the issue. The > materials need to whithstand a hihger > temperature, not only delta T is an issue (but > huge). Moisture sensitive devices: how to handle > these? You wil

OSP vs HASL

Electronics Forum | Mon May 14 17:12:20 EDT 2001 | davef

Continuing along the path that Brian took ... IPC-7525 gives design guideline for stepped stencils. It goes something like: * Stepped area SB GT 25 thou from pads located on the greatest thickness of the stencil * Pads in stepped area SB GT 35 tho

Re: solder mask

Electronics Forum | Thu Aug 12 05:33:23 EDT 1999 | Brian

| | (snip) | | | | You're quite right. However, anyone who uses MeCl in an aerosol spray needs his head examining. I'll go further: if he continues, he will most CERTAINLY need his head, the rest of his CNS and his liver examining a little later on

Re: solder mask

Electronics Forum | Thu Aug 12 22:23:23 EDT 1999 | Dave F

| | | | (snip) | | | | | | You're quite right. However, anyone who uses MeCl in an aerosol spray needs his head examining. I'll go further: if he continues, he will most CERTAINLY need his head, the rest of his CNS and his liver examining a little

Re: solder mask

Electronics Forum | Fri Aug 13 10:39:25 EDT 1999 | Boca

| | | | | | (snip) | | | | | | | | You're quite right. However, anyone who uses MeCl in an aerosol spray needs his head examining. I'll go further: if he continues, he will most CERTAINLY need his head, the rest of his CNS and his liver examining a