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Low Cost Heavy Copper PCB China 4 Layers Circuit Boards Supplier Quick Details: FR4 base material 1.6mm board thickness 2oz heavy copper Plating gold finishing RF custom PCB boards Used for Radio Frequency From China PCB manufacturer Specifications
Electronics Forum | Fri Feb 28 01:08:33 EST 2020 | sarason
Back in the 50's, 60's and 70's gold plated boards were all the rage for high reliability. test equipment, milspec etc. Nowadays only edge connectors are gold plated. Immersion plated gold is also used but it doesn't last the distance like gold plate
Electronics Forum | Fri Jun 14 14:30:36 EDT 2002 | davef
Assuming you are talking about solderable surfaces: People specify various materials to protect the solderability of the pads on the board. Gold, actually, Electroless Nickel - Immersion Gold [ENIG], is popular. * Board fabricators like it because
Industry News | 2020-12-01 17:14:52.0
Heralds Design-through-Manufacturing 4.0
Industry News | 2018-10-18 11:08:03.0
Different Techniques for Plating
Parts & Supplies | SMT Equipment
JUKI 503 NOZZLE 40001341 for SMT JUKI HX004090000 TUBE JUKI HX00409000E HOT MARKER JUKI HX004110000 CABLE PARTS JUKI HX004190000 POWER SOURCE JUKI HX004200000 5 PHASE STEP DRIVER JUKI HX004220000 SWITCH POWER SUPPLY (6V/4A) JUKI HX004230
Parts & Supplies | SMT Equipment
JUKI HX004090000 TUBE JUKI HX00409000E HOT MARKER JUKI HX004110000 CABLE PARTS JUKI HX004190000 POWER SOURCE JUKI HX004200000 5 PHASE STEP DRIVER JUKI HX004220000 SWITCH POWER SUPPLY (6V/4A) JUKI HX004230000 SWITCH POWER SUPPLY (12V/50W)
Technical Library | 2019-06-04 10:19:46.0
Interconnection technology relies very heavily on the ability of the conductors on a printed wiring assembly to maintain reliable signal integrity. Harsh environmental factors can precipitate a loss of conductivity due to oxidation and corrosion. Connections are typically soldered or inserted using pressure fitted connectors to obtain enough surface contact to meet the electrical conductivity requirements. In pressure contacts, surface integrity is especially critical where the abrasive effects of retraction and insertion can wear off the metallic finish from the contact area. This can expose the underlying copper or nickel and lead to increased resistance at the contact points. These types of conductors are frequently found in card edge connectors where the terminations are plated with a layer of nickel and gold (frequently referred to as gold fingers). A hard gold is typically used containing very small amounts of nickel and cobalt to increase the wear resistance.
https://www.ascen.ltd/Products/conformal_coating_equipment//580.html PCB Conformal coating machine is used to paint conformal coating onto full LED panel to avoid PCB moisture,sault and static.It can be full panel conformal coating or selective coati
BEST Inc master instructor Norman Mier demonstrates how to replate gold fingers using the BEST gold contact replating kit. In this video he demonstrates how to repair, prepare and replate the finger using a gold replating solution. If you want to lea
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
Heller Industries Inc. | https://hellerindustries.com/wp-content/uploads/2022/06/Optimizing-Reflowed-Solder-TIM-sTIMs-Processes-for-Emerging-Heterogeneous.pdf
) are similarly used in packages requiring additional reflow cycles. As a contrast to compliant TIMs, gold alloys (for AuSn20, k~57 W/m-K) provide solutions where the bond and alloy are strong enough to deflect the package to absorb thermal strains
Imagineering, Inc. | https://www.pcbnet.com/quote/assembly-quote/?cpn=0
* Select One 1 2 3 4 5 6 8 Dimensions * Materials FR4(130Tg) FR4(170Tg) FR406(180Tg) Copper Weight 1 oz 2 oz 3 oz 4 oz Finish Plating ENIG1U" (Immersion Gold) ENIG2U" (Immersion Gold) ENIG3U" (Immersion Gold) ENIG4U" (Immersion Gold) ENIG5U" (Immersion Gold