WP3 24 July 2014 QMUL/GAB 1

Status of Sensor Testing Setup at QMUL

Since 10 July 2014

16th Re-installed blind on cabinet (JagM)

18th Serviced Nitrogen generator

21st Mastic Cabinet for light-tghtness (JagM); ATLAS12 probeplan + drgs from Bart.

23rd Further checked probe station initialisation + motion control

24th Ran StripChecker.vi (v2013 + ATLAS07 mechanical) => Wafer alignment & strip probe pattern OK.

(essentially where we were before the 2013 evacuation)

WP3 24 July 2014 QMUL/GAB 2

In order to START scanning ATLAS Sensors:

• Install CAV/QMUL chuck adapter (returned by Bart + ATLAS12 Sensor W661) / Check chuck

planarity (uniform needle scrub)

• Re-cable GPIB to instruments

• Make/install Bias and Signal Cables (+ Patch panels if necessary)

• Make new bias stand-off box (1000V) for Wayne-Kerr LCR meter. (+ install protection unit).

• Check functionality of instruments & strip-checker measurements (using ATLAS07 mini-sensors?)

• Re-commission manual wire bonder <= needed to strap bias lines form sensor to frame!

• => not a show-stopper, but should consider whether to replace K&S 484.

• Trial-test ATLAS12 W661 sensor .. compare with Cambridge data..

Further ahead:

(trivially) incorporate UPS

Design/install vacuum reservoir and pump switch.

Replace video camera (flakey when cold)?

Install/ test updated Cavendish Labview suite (modify for QM “Nucleus” - Win2k).

Bart’s scheme to speed up probing using probe card / switch matrix.

Need new RA + training (GAB thinly spread and ageing).

WP3 24 July 2014 QMUL/GAB 3

QMUL Wedge Bonder: believed to be K&S 484. Operated ok in 2013 but “very” obsolete. Presumably more so by onset of upgrade production.