Electronics Forum | Fri May 28 17:44:51 EDT 1999 | Glenn Robertson
| I discovered that we have some gold plated (30 mico in.) through hole connectors which were Paste In Hole soldered (60 sec at reflow) on a HASL PCB. Do we have an embrittlement reliability issue? The calculated volume % of gold in the joints is abo
Electronics Forum | Fri Aug 17 01:40:55 EDT 2001 | V.RAMANAND KINI
We are in the watch & clock Business. We have a Watch IC chip that has to be wirebonded using Ultrasonic aluminium wedge bonder. The wire dia is 1.25mil. The PCB is made of G10 Glass epoxy copper clad laminate. The copper thickness is 18 microns. The
Electronics Forum | Thu Jun 14 04:24:32 EDT 2012 | brettrenishaw
Yes pads are still gold after the wave soldering process even if you wave solder a pcb several times. I have tried soldering using an iron and the solder takes to the pad as you would expect. This happens on all boards of this type and all boards are
Electronics Forum | Fri Jul 01 18:00:44 EDT 2005 | mrduckmann2000
RB, We have a gold finger problem here at our plant. Our kapton tape came off in the wave process and now we have 8 PCB's that have silver fingers. We are waiting on our new A.P.E. SRS-069 Gold Finger Plater. This mircle machine is going to fix a
Electronics Forum | Thu Aug 06 09:51:20 EDT 1998 | Bob Willis
This text may be of interest to any one with tin lead spots Guide to Solder Spots - A New Plague in Manufacture ? So what are solder spots ? They appear to be the next big problem in modern reflow assembly in fact in any process that involves solder
Electronics Forum | Sat Apr 10 01:11:37 EDT 1999 | forest
Our company is going to use BGA(1.27mm pitch) But I have heard of troubles with P-BGA. It is that cracks occured between solderball and gold plating of PCB during ICT(incircuit test). We know that gold plating of PWB is not good for BGA, so we decide
Electronics Forum | Wed Dec 14 07:34:33 EST 2005 | davef
Mike Ozzy If I came to your house, I wouldn't punch you. I'd make you buy me beer. Vern Solberg; Tessera Technologies Inc., 3099 Orchard Dr, San Jose, CA 95134; 408 568 3734 F408 894 0768 vsolberg at tessera dot com. If that doesn't work try: Tes
Electronics Forum | Fri Dec 09 02:20:47 EST 2005 | Mike_Kennedy
Grant, I dont quite understand the implications my self yet on gold deposit using FLASH or ENIG. However the important part of the gold finish is that it is kept under 3% of the total solder joint, so normally its safe. With the FLASH process it is m
Electronics Forum | Thu Dec 08 01:05:34 EST 2005 | Mike_Kennedy
Our new PCB supplier can give us a 20% price reduction if we convert from an ENIG finish to a FLASH gold finish. My uderstanding between the two is as follows: ENIG - Nickel is plated over copper and then immersed in Gold which forms a self limited f
Electronics Forum | Tue Dec 13 22:58:43 EST 2005 | Mike Kennedy
Dave, I have read an article by Vern Solberg who said that Electro plating Ni/Au in not recommended for PCB's. I have tried his email but get bounce back. Do you know him or his email? I knows its a long shot to ask you, but it never hurts to ask...
Products, services, training & consulting for the assembly, rework & repair of electronic assemblies. BGA process experts. Manufacturers Rep, Distributor & Service Provider for Seamark/Zhuomao and Shuttle Star BGA Rework Stations.
Training Provider / Manufacturer's Representative / Equipment Dealer / Broker / Auctions / Consultant / Service Provider
1750 Mitchell Ave.
Oroville, CA USA
Phone: (888) 406-2830
