Industry Directory | Consultant / Service Provider / Distributor / Manufacturer / Other
Ludee Circuits offer RoHS PCB.We could offer leadfree HASL,Entek, flash gold, immersion gold, immersion silver, immersion tin finishing based on standard FR-4, CEM-3 materials, Teflon, Rogers RO4000 series, as well as high Tg S1170 materials.
Industry Directory | Manufacturer
PCBCart, a highly skilled PCB Fab, Parts Sourcing & Assembly services provider for global companies, fabricates 23k+ different PCB designs each year, and are committed on the quality & performance of every circuit board it printed
New Equipment | Solder Paste Stencils
Eliminate hours of solder mask damage repair time for bga sites while improving rework yield. Are you frustrated by the time it takes to repair mask damage underneath the BGA during the rework process? Are you squeezed for space on the PCB in an
Layer: 10L Base Material:FR-4 tg180(ITEQ) Board Thickness: 1.6mm Final copper: 35um Surface Finish:Immersion Gold/Au:2u” min. Gold fingers/Au:30u” Solder mask: Green Profile: Routing E-test: 100% Fixture Quality report: Solderability test, Fi
Electronics Forum | Tue Jul 01 17:38:24 EDT 2003 | jartman
I've faced this several times in the past, and the only real solution is to wirebond before SMT assembly. Everything leaves a residue, and trying to clean a residue off later is basically hopeless. This may require some trickery in your SMT process
Electronics Forum | Mon Jan 25 13:51:07 EST 1999 | Parvez PAtel
Steve i agree with u. we use kapton tapes for test puproses at our facility and they do not interfere with the printing results. Infact we sometimes use it to mask off unwanted apertures on stencil underside. But could their applcation affect the gol
Industry News | 2018-10-18 09:06:41.0
Gold Fingers: A Guide to Understanding Gold-Plated PCB Connectors
Industry News | 2018-12-08 03:29:29.0
SMT Dictionary – Surface Mount Technology Acronym and Abbreviation
Parts & Supplies | Pick and Place/Feeders
KHY-M221A-A0 KGT-M221A-A0 YAMAHA YG12 tank chain gland KHY-M2267-00 YG12 tank chain YS12 towline keel X axis PISCO SP2550 R75 KHY-M2276-S0 YS12 screw X-axis YG12 X-axis screw YG12F YS12F screw guide KHY-M371R-00 RAIL GUIDE 12P YS24 YS100 Feida pl
Parts & Supplies | Pick and Place/Feeders
JUKI HF0013010P0 FUSE 1A 250V www.fujintai.com JUKI HF0013020P0 FUSE 2A FUJINTAI TECHNOLOGY CO.,LTD JUKI HF00130315S FUSE 3.15A 250V REF. NO.112 www.fujintai.com JUKI HF001400500 SLO-BLO FUSE FUJINTAI TECHNOLOGY CO.,LTD JUKI HF001400700 TIME
Technical Library | 2020-08-05 18:49:32.0
The evolution of internet-enabled mobile devices has driven innovation in the manufacturing and design of technology capable of high-frequency electronic signal transfer. Among the primary factors affecting the integrity of high-frequency signals is the surface finish applied on PCB copper pads – a need commonly met through the electroless nickel immersion gold process, ENIG. However, there are well-documented limitations of ENIG due to the presence of nickel, the properties of which result in an overall reduced performance in high-frequency data transfer rate for ENIG-applied electronics, compared to bare copper. An innovation over traditional ENIG is a nickel-less approach involving a special nano-engineered barrier designed to coat copper contacts, finished with an outermost gold layer. In this paper, assemblies involving this nickel-less novel surface finish have been subjected to extended thermal exposure, then intermetallics analyses, contact/sheet resistance comparison after every reflow cycle (up to 6 reflow cycles) to assess the prevention of copper atoms diffusion into gold layer, solder ball pull and shear tests to evaluate the aging and long-term reliability of solder joints, and insertion loss testing to gauge whether this surface finish can be used for high-frequency, high density interconnect (HDI) applications.
we have many universal gold plus feeders to sell . www.smt-store.com
we have many hitachi equipment and hitachi feeders to sell . if you want to know more , please contact us tina@smtfeeders.cn
Career Center | Shen Zhen, China | Management,Sales/Marketing
Working in GLORYPCB for 10 years.knowing electronic supply chain very well. especially for PCB PCBA assembly and other Electronic Manufacturing Service.Glorypcb is a professional electronic manufacturer located in Shenzhen with three facilities.offe
INSERT INTO tracking_express (userid, username, page_id, ts) VALUES ('#Quser_profile.id#', '#Quser_profile.username#', 98, (#ts#)) SMT Express, Volume 4, Issue No. 2 - from SMTnet.com Volume 4, Issue No. 2 Thursday, Febuary 22, 2002 Featured
Drop Impact Reliability of Edge-bonded Lead-free Chipscale Packages Drop Impact Reliability of Edge-bonded Lead-free Chipscale Packages This paper presents the drop test reliability results for edge-bonded 0.5mm pitch lead-free chip scale
| https://www.smtfactory.com/What-is-the-working-process-of-Full-auto-SMT-Stencil-Printer-id40272477.html
③ PCBs with gold fingers should avoid gold fingers, wipe them repeatedly with dust-free paper and a little alcohol, blow dry with an air gun, and check under a magnifying glass to ensure that there is
| https://www.eptac.com/wp-content/uploads/2015/03/ecss_q_st_70_18c-space-product-assurance-rf-coax-cables.pdf
pretinning a. The supplier shall remove gold from all surface areas to be joined by soldering. NOTE The central contact pin can be degolded and pretinned with a soldering iron by melting a short length of 63 Sn or 60 Sn solder wire
