Hello Sherry
These test panels with Sn3-5Ag which you say must be bare copper.
Does that mean that the panel has to be completely covered in bare copper
with no resist or can it mean FR4 laminate with a track image etched,
photoimage printed with the pads left clear for solder (basically a pwb
ready for HAL).
Also would you let me know how I can join your group, does it occur any
costs and is their a weekly / monthly or quarterly news sheet.

Thanks again
Ian
-----Original Message-----
From: Sherry Goodell <[log in to unmask]>
To: [log in to unmask] <[log in to unmask]>
Date: 24 August 1999 00:57
Subject: [TN] No-Lead HAL Surface finish available for testing


>Hello everyone,
>
>We just attended a very enlightening Hal User Group Meeting on Friday
>August 20th. In
>addition to the HAL related projects already in progress, the concern for
>testing of no-lead solders was utmost on everyone's mind.
>
>With over 70% of the PCB's today being coated using HAL, there is a need to
>evaluate the various coating alloys in a HAL application. In an effort to
>support our customers, and the industry, we have set up a dedicated line
for
>producing and testing no-lead finishes using HAL.
>
>For the next 30 days, we will coat your bare copper test panels with
Sn3.5Ag
>using our dedicated HAL line. We request the panels to be an minimum of 12
>inches in one direction, but no more than 28. We respectfully request that
>you supply between 2 and 30 samples. Please note that the panels must be
>bare copper. Reworks or alternative finishes can not be processed.
>
>We will retain one sample for our records and XRF data collection and
return
>the balance to you for your evaluation and testing. It is important to note
>that our intent is to let you, the Customer, perform your evaluations in
the
>manner you are accustomed to so that variation can be minimized, and you
>will obtain faster
>data response to the testing.
>
>However, we are very much interested in exchanging results and developing a
>specific test program with
>anyone interested in participating.
>
>After 30 days, another lead-free alloy will be put on-line and the offer
>will be repeated with the new alloy. We welcome your feedback on what alloy
>to evaluate each time.
>
>There is no charge for the service, and we ask that samples be sent to:
>
>TET Halco
>>8 Delta Drive
>>Londonderry NH 03053
>>Attention:  Sherry Goodell
>
>Please be sure to include your shipping address and any special
requirements
>you have.  For more information, or specific questions I would be happy to
>discuss this off line.  My contact information is below.
>
>Any comments or suggestions would be welcome.
>
>Best regards
>Sherry Goodell
>Applications Eng. Mgr., TET Halco
>Phone: (603) 437-8653
>Fax:   (603) 434-4156
>e-mail:[log in to unmask] or [log in to unmask]
>
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