Guy,
Under your interpretation, what is the application and intent of the word
"ALL" as used in J-STD-001C, 5.4 Solderability Maintenance?
Dave Fish
----- Original Message -----
From: Guy Ramsey <[log in to unmask]>
To: <[log in to unmask]>
Sent: Friday, July 06, 2001 9:21 AM
Subject: Re: [TN] J-STD-002 and -003 solderability testing...
> That is not how I interpret 5.4. I discussed this with one of our Master
> Instructors, we interpret 5.4 as a requirement ensuring that your handling
> and storage methods have not degraded solderability. It does not suggest
how
> you should do this nor is there a requirement for objective evidence.
>
> Perhaps you could store coupons with comparable finishes and record test
> results, there may be even simpler ways. If material in your process is
> known to pass J-STD-002 and is less than 6 months old and you can show
good
> solderability on sample material that is one year old. I suggest you have
> complied with 5.4. Just remember your process control system must be
> available for review and is subject to approval by your customer.
>
>
> Guy Ramsey
> Senior Lab Technician / Instructor
>
>
> E-Mail: [log in to unmask] <mailto:[log in to unmask]>
> Ph: (610) 362-1200 x107
> Fax: (610) 362-1290
>
>
>
> -----Original Message-----
> From: TechNet [mailto:[log in to unmask]]On Behalf Of David Fish
> Sent: Thursday, July 05, 2001 10:51 PM
> To: [log in to unmask]
> Subject: Re: [TN] J-STD-002 and -003 solderability testing...
>
>
> Guy,
>
> We agree that if all we had was J-STD-001C, 5.2 Solderability, we probably
> would not be having this conversation.
>
> . but we do have J-STD-001C, 5.4 Solderability Maintenance. We also agree
> that 5.4 applies to components, parts, etc. that come from the stockroom,
> kitting, component prep, sequencing, machine insertion, machine placement,
> hand insertion, or similar areas up-stream of all soldering processes.
>
> 5.4 says that if you don't solder the components, parts, etc. that you
> checked for solderability in 5.2 right away, but instead put them in a
> stockroom, kitted them, prepared them, sequenced them, machine inserted
> them, machine placed them, hand inserted them, or similar things; then you
> need to check the solderability of every component, part, etc. that you
did
> those things to prior to starting a soldering operation on that component,
> part, etc.
>
> Dave Fish
>
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