Electronics Forum: wire bonded (Page 1 of 20)

Die bonded at an angle in a QFN component

Electronics Forum | Wed Jul 29 16:04:03 EDT 2020 | emeto

Very interesting. Looking at the wire bonding, it seems that it is all normal.

clean rooms/ wire bonding

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 ?

gold wire bonding

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

clean rooms/ wire bonding

Electronics Forum | Mon Mar 07 21:37:42 EST 2005 | ABHI

It depends on your product requirements. I have seen aluminium wire bonding operations in as high as class 100K clean rooms. These are the assembly areas for calculators. The best is class 10K clean room for wire bonding. You can go upto fine pitch w

gold wire bonding

Electronics Forum | Tue Dec 27 10:00:19 EST 2005 | sparrow

Hello, does anybody have experience in thermosonic gold wire bonding to electroless nickel/immersion gold?? regards, Sergey

COB and wire bond

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,

Aluminum wire bonding

Electronics Forum | Sun May 26 10:21:46 EDT 2002 | V.RAMANAND KINI

We buy PCBs for aluminium wire bonding. Our PCBs have 0.25 mm square pads for bonding and 0.10 or 0.15 mm gap between circuit traces/tracks. We do not have any problem. Our vendor gives 9 microns of Nickel and 0.03 microns of gold.

gold wire bonding

Electronics Forum | Wed Dec 28 21:18:12 EST 2005 | davef

You don't TS bond gold wire to nickel [of ENIG] for the same reason that you don't TS bond gold wire to hard gold. [Nickel or maybe cobalt is used to harden soft gold.] Together nickel and gold produce unreliable bonds. Look here: * http://www.smta.

gold wire bonding

Electronics Forum | Tue Dec 27 14:51:49 EST 2005 | davef

What's the issue and situation?

COB and wire bond

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

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