[NTIACNews]Thickness Testing RFI

Chris Coughlin ccoughlin@ntiac.com
Thu, 27 Mar 2003 09:05:59 -0600


Hello All;

We received a technical inquiry today asking for a point of contact for =
thickness testing for calibration blocks.  The cal blocks are fused =
silica; the material being simulated is about 650um thick and the =
velocity of sound is 1641 m/s.  Required:  accuracies traceable to =
0.1um;  0.25 um as a worst-case scenario.

If anyone is capable of this or know of someone who is, please drop me a =
line.

Regards,
Chris

--=20
Chris Coughlin / NTIAC / 512.263.2101x227
415 Crystal Creek Drive / Austin TX 78746
ccoughlin@ntiac.com / http://www.ntiac.com