Electronics Forum | Mon May 07 11:02:17 EDT 2001 | Singh
Hi all. I am looking into the implementation of the Chip on Board process with eutactic bonding and the then using either gold or aluminum wire to make wedge type wire bonding. Since I am totally new to this, can somebody guide me thru the process,
Electronics Forum | Mon May 07 22:29:52 EDT 2001 | davef
4 wire per sec ... you figure how many you need] Encapsulation ~$120K for a dispenser [10 sec per die ... you figure how many you need] plus a cure oven ~$100k Throw in a another ~$100k for marking and cleaning Check the September 2000 SMTnet New
Electronics Forum | Mon May 07 15:13:03 EDT 2001 | jdtpfacreate
Singh, The equipment varies in price. We make a wire bonder called the HW27U-H Wire Bonder. This is a gold to gold wire ball bonder. The substrate size you mention is within the area we can take into the machine. The key is the bonding area.
Electronics Forum | Tue Jun 04 19:33:16 EDT 2002 | rob_thomas
Dave's estimation is pretty conservative but there is a lot of equipment out there and a lot of people happy to make a sale.Implementing both mentioned processes it's difficult and time consuming .Even if you get good training from whoever sells you
Electronics Forum | Mon Jun 03 12:51:17 EDT 2002 | V.RAMANAND KINI
We are doing COB operations for nearly ten years. Pls. write to me if you need info on m/c selection, type of PCB, plating etc., Thanks V.RAMANAND KINI...03.06.02
Electronics Forum | Thu Jan 15 15:16:56 EST 2009 | jsherrow
We recently had our customer report a component failure trend of a few percent. Analysis indicates wire bond failure internal to a d-pak caused by what appears to be chlorine contamination. We're running a lead free process with aqueous wash. 700 co
Electronics Forum | Thu Jan 15 21:16:18 EST 2009 | davef
Our first impulse would be to blame someone else. We'd send some of the DPAK from inventory to: * Supplier * Outside failure analysis laboratory ... for delidding and analysis
Electronics Forum | Mon Mar 07 15:41:50 EST 2005 | John M
Is anyone aware of standards which would identify the clean room requirements for the wire bonding process ?
Electronics Forum | Wed Dec 28 03:33:31 EST 2005 | sparrow
I would like to know if ENIG is widely used for the thermosonic gold wire bonding or this application is an exotic one. And I also wold like to talk to someone who uses printed circuits with ENIG finish for such an application. I do not quite underst
Electronics Forum | Wed Dec 28 16:03:53 EST 2005 | Chris
I have lots of experience with thermosonic gold ball bonding. You can read the literature and you will probably find some papers that say you can do it. I have never been able to do it. We gold ball bond all day long with little problems at all bu
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