TECHNET Archives

October 2008

TechNet@IPC.ORG

Options: Use Monospaced Font
Show Text Part by Default
Show All Mail Headers

Message: [<< First] [< Prev] [Next >] [Last >>]
Topic: [<< First] [< Prev] [Next >] [Last >>]
Author: [<< First] [< Prev] [Next >] [Last >>]

Print Reply
Subject:
From:
Anil kher <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Anil kher <[log in to unmask]>
Date:
Fri, 3 Oct 2008 12:31:12 +0530
Content-Type:
text/plain
Parts/Attachments:
text/plain (105 lines)
Inge

Who said Flash Gold is not better. My customers hv done millions every year
and no problems at all.

I feel given the options it is difficult to produce a flash gold which will
not bond - and easy to produce ENIG which will not bond.:-).

However for Gold wire ENIg will not be adequate but 1 micron gold min.
should do the job

Anil Kher

Micro Interconnexion Pvt. Ltd
D3-12 A, Corlim Ind. Estate
Corlim, ILHAS, GOA
INDIA - 403110
Tel: +91-832-2284337
Fax: +91-832-2284209
alt. E-mail: [log in to unmask]

LEADERS IN GOLD PLATED PCBs



-----Original Message-----
From: Hernefjord Ingemar [mailto:[log in to unmask]] 
Sent: Thursday, October 02, 2008 12:30 PM
Subject: Re: Electrolytic (Flash) Nickel Gold Finish

Anand,
who said aluminum is not viable for ENIG? We have produced some million
boards with Al wedge bonding on ENIG. In fact, you bond on the underlying
nickel. If the gold is thin, which is the case with ENIG, no hazardous IMCs
will grow.
Inge

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Anand
Sent: den 1 oktober 2008 23:03
To: [log in to unmask]
Subject: [TN] Electrolytic (Flash) Nickel Gold Finish

Hi All,

I want to use Alluminum WEDGE wire bonding for COB.
as the ENIG is suitable only for Gold Wire Bonding .....! which i don't
want.

I thought about Electrolytic (Flash) Nickel Gold Finish. as alluminum wire
bond can be used.

but i don;t know the recommended thickness of nickel and Gold for

A) Electrolytic ?????? I didn't found any ipc std for this ?

B) Can any ONE please guide me for the thickness of this plating....!

C) again as there is no phosphurus used in electrlytic process how can we
    prevent the corrosion for this plating ?

 thanks and eagerly waiting for the answer on above three questions .....



Regards,
Anand

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0 To
unsubscribe, send a message to [log in to unmask] with following text in the
BODY (NOT the subject field): SIGNOFF Technet To temporarily halt or
(re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet
NOMAIL or (MAIL) To receive ONE mailing per day of all the posts: send
e-mail to [log in to unmask]: SET Technet Digest Search the archives of
previous posts at: http://listserv.ipc.org/archives Please visit IPC web
site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100
ext.2815
-----------------------------------------------------

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to
[log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to
[log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16
for additional information, or contact Keach Sasamori at [log in to unmask] or
847-615-7100 ext.2815
-----------------------------------------------------

---------------------------------------------------
Technet Mail List provided as a service by IPC using LISTSERV 15.0
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt or (re-start) delivery of Technet send e-mail to [log in to unmask]: SET Technet NOMAIL or (MAIL)
To receive ONE mailing per day of all the posts: send e-mail to [log in to unmask]: SET Technet Digest
Search the archives of previous posts at: http://listserv.ipc.org/archives
Please visit IPC web site http://www.ipc.org/contentpage.asp?Pageid=4.3.16 for additional information, or contact Keach Sasamori at [log in to unmask] or 847-615-7100 ext.2815
-----------------------------------------------------

ATOM RSS1 RSS2