Contact Stansberry - "; echo " there is a problem w/ your write-up.\n"; return ; } $row = mysql_fetch_array($result); $title = $row["title"]; $princ = $row["principal"]; $deputy= $row["deputy"]; $campn0 = $row["campn0"]; $aorkeys = $row["aorkeys"]; // get real name of principal, deputies $princ = ioc_get_person($princ); $princ = $princ[0]; $deps = explode(",",$deputy); foreach ($deps as $depty) { $depty = trim($depty); $depty = ioc_get_person($depty); $depty = $depty[0]; $depty = explode(",",$depty); $depty = $depty[0]; // last names only $deplist[] = $depty; } $deplist = implode(", ", $deplist); $caid = sprintf("%03d",$caid); $file = "mips-".$caid.$campn.".analysis.php"; // END PHP. ?> <? echo "MIPS-$caid, Campaign $campn IOC/SV Analysis"; ?>

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Task Outcome Summary

Abstract

In this task, diagnostic data is collected during 160um, 70um, and 24um thermal anneals. The anneals executed properly. The temperature plots from these anneals are presented in the report for metatask MIPS-2050. Following the anneals, a Vrst optimization is performed on the Ge arrays. The results are presented below.

Analysis

We converted the diagnostic data from the thermal anneal into temperatures and generated temperature plots. These data are compared to the temperature curves from previous anneals. See the writeup for MIPS-2050 for details.

A Vrst analysis was performed on the Vrst data. In this test, the bias voltages for the 70um and 160um arrays are set to 0 mV, and then the Vrst voltages are adjusted between +5 mV and -5 mV relative to normal. A bright stim is turned on in manual mode during the test. The principle is that the array will produce a strong positive slope when positively biased and a strong negative slope when negatively biased, so the zero bias voltage point can be easily recognized. In practice, we calculate slope images and then look for this transition point.


Results

Temperature Plots from Anneal

The temperature plots can be seen in the writeup for MIPS-2050. The temperature behavior during the anneal was nominal.

Vrst Optimization

The Vrst data are presented below. The filenames are MIPS.2/3.0007780352.00??.0001.01.mipl.fits. I ignored the first frame and the last 72 frames in the 70um Vrst slope calculations. The 160um stim is brighter now than it used to be so I had to ignore 76 frames. 

File Bias 70_1  70_2  70_3  70_4  70_5  70_6  70_7  70_8 160_1 160_2 160_3 160_4
02   Nom -170  -160  -220  -260  -250  -190  -180  -190  -151  -417  -158   -61
03   +5  -270  -250  -330  -300  -310  -220  -320  -190  -738 -1271  -691  -839
04   +4  -200  -180  -250  -270  -270  -230  -250  -210  -894 -1387  -603  -602
05   +3  -150  -130  -170  -190  -200  -190  -190  -170  -917 -1232  -500  -361
06   +2   -80   -90  -140  -150  -170  -170  -170  -150  -535  -879  -353  -206
07   +1   -60   -30  -100  -120  -120  -140  -140  -130  -147  -527  -166   -75
08   Nom    0    30   -60   -70   -90  -120  -100  -110   253  -247     6    39
09   -1    60    90   -20   -60   -90   -80   -80   -90   578   -25   206   149
10   -2    90   140    20   -20   -40   -40   -50   -50   935   517   366   316
11   -3   140   160    70    20     0     0   -20   -30  1341   428   558   486
12   -4   170   200   100    30    30    40   -10   -10  1811   670   783   677
13   -5  -220   250   200    40    60   110    40    10  2378   949  1030   909
14   Nom -120  -100  -140  -210  -260  -190  -220  -180    44  -240   -20    42

Vrst     +0.0  +0.5  -1.5  -2.5  -3.0  -3.0  -3.75 -4.5  +0.75 -1.0  +0.0  +0.25
DAC Counts +0    +2    -6   -10   -12   -12   -15   -18    +3    -4     0    +1
DAC NOM   90E   8F7   910   8E7   916   90B   920   905   97D   91C   91C   913
New DAC   90E   8F9   90A   8DD   90A   8FF   911   8F3   980   918   91C   914

The Vrst values from this campaign are similar to the defaults that were added to the mips-irs patch block following campaign I. No new updates are recommended at this time.

Conclusions

The thermal behavior of the arrays is nominal. The Vrst behavior is very consistent with the previous two campaigns. No changes are recommended at this time.

Output and Deliverable Products

None.

Actions Following Analysis

None.