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October 2015

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Subject:
From:
Victor Hernandez <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, [log in to unmask]
Date:
Mon, 26 Oct 2015 11:46:47 -0500
Content-Type:
text/plain
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text/plain (87 lines)
It is my understanding that these coupon are part of a test panel located on the scrap edges of the panel.   What I am searching for is actual functional area of a production panel once it has been depanelized.   With or without components populated.   What size of coupon.

Victor,

-----Original Message-----
From: McQueen, Matthew T CIV NSWC CRANE, GXSP [mailto:[log in to unmask]]
Sent: Monday, October 26, 2015 7:03 AM
To: Hernandez, Victor G
Subject: RE: Solder Float Test/Thermal stress

Victor,

I don't have a current version of 2221; I believe they revised to B but all I have right now is A.

Take a look at figure 12-4 (14mm x 17.5mm) for A/B and figure 12-2 (14mm x 17.5mm) for A and B in Revision A. In Revision B I believe that these are defined in appendices now.

Hope that helps.


Matt McQueen
Crane Division, Naval Surface Warfare Center (NSWC Crane) Printed Circuit Technology, Bldg. 3287E
300 Highway 361
Crane, IN 47522-5001
Ph:  812-854-8796
Fax:  812-854-1174
Email:  [log in to unmask]

Harnessing the Power of Technology for the Warfighter




-----Original Message-----
From: May, William D (Dean) CIV NSWC Crane, GXSP
Sent: Monday, October 26, 2015 7:36 AM
To: Ferguson, Jason D CIV NSWC Crane, GXSP; Mcatee, Edward A CIV NSWC Crane, GXSP; Miller, Mick P CIV NSWC CRANE, GXSP; McQueen, Matthew T CIV NSWC CRANE, GXSP; Vetter, Steve J CIV NSWC Crane, GXSP; Soles, Alexander M CIV NSWC CRANE, GXSP; Boyd, Christopher CIV NSWC Crane, GXSP; Jones, Jeffrey S CTR GXSP
Subject: FW: Solder Float Test/Thermal stress




________________________________________
From: TechNetOn Behalf OfVictor Hernandez
Sent: Monday, October 26, 2015 7:33:50 AM (UTC-05:00) Eastern Time (US & Canada)
To: [log in to unmask]
Subject: [TN] Solder Float Test/Thermal stress

Fellow TechNetters:

In IPC-TM-650 / 2.6.8 section 3.1 states a test coupon with reference to IPC-2221. I am searching for the size of that coupon. I know that the ROI has to have a clearance of 25.4 mm (100 thousands). However, I do not find the actual size of the coupon. I have always used a 1 square inch size. I would like ti verify that dimension.

Victor,


-----Original Message-----
From: Mike Fenner [mailto:[log in to unmask]]
Sent: Sunday, October 25, 2015 2:27 PM
To: 'TechNet E-Mail Forum'; Hernandez, Victor G
Subject: RE: [TN] Is everyone busy or napping

Yes - busy napping, you woke me up, what's up?

--
Regards

Mike
-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Victor Hernandez
Sent: Friday, October 23, 2015 7:27 PM
To: [log in to unmask]
Subject: [TN] Is everyone busy or napping

Victor,

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