Tan Mr Pauls follows the same method as we do. We apply Parylene as a service and if adhesion testing is requested by the customer, the D3359 is usually the spec called for unless they generate their own. We have purchased a specific test kit with the proper size blades just for this. The only caution is that the substrate you use as a test coupon must be the exact same substrate material of what you want the parylene to have max adhesion. In other words, if you are coating a CCA, don't use a glass slide as a coupon. All you are doing is testing parylene adhesion to glass, not solder joints or device leads. Parylene will adhere to each differently. Lloyd Duso Diamond-MT Plant Manager (814) 535-3505 www.Diamond-mt.com On Thu, Feb 12, 2015 at 8:46 PM, Tan Geok Ang <[log in to unmask]> wrote: > Any comment or advice? > > ________________________________________ > From: TechNet [[log in to unmask]] on behalf of Tan Geok Ang [ > [log in to unmask]] > Sent: Thursday, 12 February, 2015 5:42:25 PM > To: [log in to unmask] > Subject: [TN] Adhesion, Polymer Coating ( IPC-TM-650 2.4.16 ) > > Will like to check whether it is a common practice to subject parylene > coated boards to thermal shock cycles before performing adhesion test > method in accordance to IPC-TM-650 2.4.16 (similar to ASTM 3955)? > > At the same time, Section 4.0 (Apparatus or Material) of IPC-TM-650 > 2.4.16, does not indicated what tool is used to create the pattern under > section 5.2 (though it refer to IPC-DD-135 which is an obsoleted standard) > as the line width of the pattern is 0.1mm. Razor blade thickness is about > 0.2mm. > > Hope to get advice you all. > > > > ______________________________________________________________________ > This email has been scanned by the Symantec Email Security.cloud service. > For more information please contact helpdesk at x2960 or [log in to unmask] > ______________________________________________________________________ > > ______________________________________________________________________ > This email has been scanned by the Symantec Email Security.cloud service. > For more information please contact helpdesk at x2960 or [log in to unmask] > ______________________________________________________________________ > ______________________________________________________________________ This email has been scanned by the Symantec Email Security.cloud service. For more information please contact helpdesk at x2960 or [log in to unmask] ______________________________________________________________________