My advice to you is to remove the following words from the last
sentence:

*         Please

*         Not

*         Also

*         Considering

*         The

*         Option

*         Of

 

Dewey

 

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Paul Baine
Sent: Friday, March 09, 2007 11:17 AM
To: [log in to unmask]
Subject: [TN] Qualification Testing for H1 Flux

 

Hello all,

 

A recent Customer requires us to work to J-STD-001 Class 3 and 

has been examining our process.

 

We are currently using Type OR (organic) flux with activity level H1. 

Our Customer has pointed out that Para. 3.3 of J-STD-001D 

requires that activity level LO or L1 fluxes be used.  If we want to 

continue to use H1 flux, then "data demonstrating compatibility 

shall be available for review".

 

Appendix C of J-STD-001D details the tests needed for 

demonstrating compatibility.  Currently we do a ROSE test as part 

of our process.

 

I talked to a solder flux manufacturer and they said that our 

Customer would have to define the required tests if we want to 

keep using OR H1 flux.  They also said that various labs exist 

which could do the required tests.

 

However, there is a Note in Appendix C which says:

 

"This testing is a 'site specific' qualification process to be done at 

the manufacturer's location using production processes and 

equipment whenever possible."

 

This note would suggest that we can't send samples out for test, 

as the testing must be done at our facility.

 

It is also not clear whether the test is done on populated PCB 

Assemblies or bare boards.

 

Something else that worries me is that, as per para. C-5.1, a 

minimum of 10 samples are required, and as per para. C-6.2, "all 

biased sites need to have the components removed...preferably by 

cutting of leads."  Does this mean that, if PCB Assemblies are 

tested, that the components will be destroyed?  Our contract with 

our Customer is for low volume quantities, and losing 10 

Assemblies is not an attractive option.

 

I would appreciate any help in clarifying exactly what we need to do 

to qualify OR H1 flux.  I find Appendix C of J-STD-001 confusing.

 

Please not we are also considering the option of changing our flux 

to Type LO or L1 as per J-STD-001 Para 3.3

 

Best regards,

Paul Baine

Q.A. Manager

C-Tech Ltd.

PB/jstj

 

---------------------------------------------------

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
-----------------------------------------------------