Imagineering, Inc. | https://www.pcbnet.com/blog/everything-you-need-to-know-about-pcb-finish/
. The materials you use during fabrication will impact this as much as the finish. Immersion silver, immersion tin, and OSP finishes are, as a rule, more prone to breaking when not properly held
Imagineering, Inc. | https://www.pcbnet.com/capabilities/assembly/technology-roadmap/
• Inner Layer - 10 oz • Inner Layer - 16 oz Buried/Blind Via 10+N+10 (HDI) Plasma Desmear Yes Outline Tolerance +/-.004 Surface Finish • HASL • ENIG • Immersion Silver • OSP (ENTEK) • Carbon • Immersion Tin • Electrolyic Gold • ENEPIG • ENIPIG Impeadance Control
Imagineering, Inc. | https://www.pcbnet.com/capabilities/fabrication/technology-roadmap/
• Inner Layer - 10 oz • Inner Layer - 16 oz Buried/Blind Via 10+N+10 (HDI) Plasma Desmear Yes Outline Tolerance +/-.004 Surface Finish • HASL • ENIG • Immersion Silver • OSP (ENTEK) • Carbon • Immersion Tin • Electrolyic Gold • ENEPIG • ENIPIG Impeadance Control
| http://etasmt.com/cc?ID=te_news_industry,3561&url=_print
. Lead is a heavy metal that accumulates in the body over time, resulting in various health problems that can ultimately lead to death under the worst circumstances
Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2018/07/leadfree.pdf
°C N2 Good Wetting but Surface Finish Looks Grainy (Acceptable ball formation) PROPRIETARY AND CONFIDENTIAL INFORMATION Pages: 10 of 24 Rev Level: 1 Rev Date: 1/03/01 Test # 2 Tin, Silver Copper, Antimony, BGA 230
Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2022/04/leadfree.pdf
°C N2 Good Wetting but Surface Finish Looks Grainy (Acceptable ball formation) PROPRIETARY AND CONFIDENTIAL INFORMATION Pages: 10 of 24 Rev Level: 1 Rev Date: 1/03/01 Test # 2 Tin, Silver Copper, Antimony, BGA 230
| http://etasmt.com:9060/te_news_industry/2013-03-29/3561.chtml
. Lead is a heavy metal that accumulates in the body over time, resulting in various health problems that can ultimately lead to death under the worst circumstances
| http://etasmt.com/te_news_industry/2013-03-29/3561.chtml
. Lead is a heavy metal that accumulates in the body over time, resulting in various health problems that can ultimately lead to death under the worst circumstances
Imagineering, Inc. | https://www.pcbnet.com/quote/board-quote/?cpn=0
* Materials FR4(130Tg) FR4(170Tg) Copper Weight 1 oz 2 oz 3 oz 4 oz Finish Plating HASL (Leaded) LF HASL Immersion Gold Immersion Silver White Tin OSP Minimum Trace/Space 0.005" 0.006" 0.007
| https://www.eptac.com/faqs/ask-helena-leo/ask/j-std-001e-2010-4-5-1-gold-removal-issues
: 4.5.1, Gold Removal Issues Question: Since we are seeing more and more components with gold finish on the solder attachment pads(specifically, leadless ICs mostly with bottom side terminations only for RF circuitry
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