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Different Techniques for Plating



The hole-wall will obtain electro-less copper as well as about 0.025 mm (0.001 inch) of electroplated copper on through-hole PCBs that are plated. External lines will obtain about 0.025 mm (0.001 inch) of copper plating, using copper electroplating methodology, on top of the initial 0.5 or 1.0 ounces of copper foil that already exists.

Depending on the requirements that must be adhered before or after the solder mask, all bare circuit elements must be protected by the following approved list of finishes:
  1. Immersion Silver
  2. Usual coating thickness: 0.20 µm (0.00007 in) to 0.50 µm (0.0002 in)
  3. Superior ability for soldering
  4. Superior surface coplanarity
  5. Superior way to obtain uniform hole sizes
  6. Good for using in fine-pitch part technology
  7. Good for surface contrast – assembly vision ability
  8. PCB is not subjected to thermal shock (as with HASL)
  9. Good for “Pb Free” soldering
Nickel: Hard Gold
  1. Usual thickness: 0.7 µm (0.00003”) to 1.3 µm (0.00005”) gold (99.7%) over 5.0
  2. µm (0.0002”) nickel or 0.2 µm (0.000008”) to 0.3 µm (0.00001”) gold (99.7%) over
  3. 5.0 µm (0.0002”) nickel for a solderable surface
  4. Very good for corrosion resistance
  5. Rated at 130-220 Knoop hardness
  6. Very good wear resistance
  7. Excellent for surface rotary switches, on-off contacts, and edge connectors
  8. Very good shelf life
Nickel: Soft Gold
  1. Usual thickness: 0.7 µm (0.00003 in) to 1.3 µm (0.00005 in) gold (99.9 percent) over 5.0
  2. µm (0.0002 in) nickel
  3. Very good corrosion resistance
  4. Below 90 Knoop hardness
  5. Well suited for pressure contacts and aluminum or gold-wire bonding
  6. Average wear resistance
  7. Very good shelf life
Electroless Nickel or Immersion Gold (99.9 percent Gold)
  1. Usual thickness is 0.08 µm or 0.000003 inch to 0.2 µm or 0.000008 inch gold over 0.5 µm or 0.0002 inch nickel
  2. Superior resistance from corrosion
  3. Adequate for aluminum wire bonding
  4. Very Good for the use of fine pitch technology
  5. Superior ability for soldering
  6. Very good shelf life
HASL (Eutectic; 63 percent Tin to 37 percent Pb
  1. Usual coating thickness is 0.8 µm (0.000003 in) to 5 µm (0.0002 in); dependent upon the design
  2. Very good ability for soldering
  3. 0.635 mm (0.025 in) surface mount pitch or greater ability
  4. 0.75mm (0.030 in) is the minimum board thickness ability
  5. Adequate shelf life
Anti-Tarnish / Preservative for Organic Solder-ability
  1. Usual coating thickness: 0.2 µm (0.000008 in) – 0.5 µm (0.0002 in)
  2. Good ability for soldering
  3. Very well suited for surface coplanarity and uniformity of the size of the hole
  4. Very good for fine-pitch technology
  5. Better surface contrast – capability for assembly vision
  6. PCB does not experience thermal shock (as with HASL)
  7. Adequate shelf life (1 year)
Matte Tin (Nickel)
  1. Usual thickness is 7.6 µm (0.0003 in) Tin above 12.7 µm (0.0005 in) of nickel
  2. Surface can be soldered
  3. Adequate life on shelf


Flason Electronic Co.,ltd provide a full smt assembly line solutions, including SMT reflow ovenwave soldering machinepick and place machinesolder paste printerPCB loaderPCB unloaderchip mounterSMT AOI machineSMT SPI machineSMT X-Ray machineSMT assembly line equipmentPCB production Equipment smt spare parts etc any kind SMT machines you may need, please contact us for more information: wechat whatsapp:008613691605420, Skype: flasonsmt, Email: sales@flason-smt.com


FAQ

1) This is the first time I use this kind of machine, is it easy to operate?

There is English manual or guide video that show you how to use machine.

If you still have any question, please contact us by e-mail / skype/ phone /trademanager online service.

2) If machine have any problem after I receive it, how can I do ?

Free parts send to you in machine warranty period.

If the part is less than 0.5KG, we pay the postage.

If it exceeds 0.5KG, you need to pay the postage.

3) MOQ ?

1 set machine, mixed order is also welcomed.

4) How can I buy this machine from you? ( Very easy and flexible !)

A. Consult us about this product on line or by e-mail.

B. Negotiate and confirm the final price , shipping , payment methods and other terms.

C. Send you the proforma invoice and confirm your order.

D. Make the payment according to the method put on proforma invoice.

E. We prepare for your order in terms of the proforma invoice after confirming your full payment.

And 100% quality check before shipping.

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5)Why choose us ?

A. Gold supplier on Alibaba !

B. Trade assurance to US$54,000 !

C. Best price & Best shipping & Best service !


Contact information


CONTACT US

Contact: Andrey

Phone: 13691605420

Tel: 0755-85225569

Email: sales@flason-smt.com

Add: Flason Industry park Shajing Town Baoan district shenzhen China 518104