SI3 STATUS AT PURDUE Oct 27 1999

STATUS OF CLAMSHELL #1

• Layer 1 / 2 first clamshell arrived Ithaca 9/8/99

STATUS OF CLAMSHELL #2

• 3/3 layer 1 mounted and tested
• 4(3)/5 layer 2 mounted and tested

• 1 layer 2 ladder (FL202) has 55 opens

Replacement part, FL213 has had diamond added 10/26 tested fine it is ready for mounting (note added after meeting: part was mounted and tested fine 10/28: CLAMSHELL IS COMPLETE!)

• 1 layer 2 ladder (FL208) had cracked hybrid (about 150 p-side opens, + n-side opens) Replacement part FL212 is mounted and tests fine.
• We plan to ship the 2^nd clamshell on November 1

• 18 ladders (126 wafers x2 L1+L2)
• 100% diamond disassembled
• 100% diamond cleaned for layer 3
• 100% v-beams fabricated and certified
• 18 (16) ladders complete with diamond
• 0 ladders remain to be built
• 17(13)/18 ladders mounted and tested
• 1 ladder ready is being mounted now, final ladder received diamond today and hopefully will be mounted thursday.
• Fraction of all processing complete : 98%

  STATUS OF L3 BY LADDER

  • FL301 on cone OK (contaminated diamond)
  • FL302 on cone OK (contaminated diamond)
  • FL303 on cone OK (contaminated diamond)
  • FL304 on cone OK (contaminated diamond)
  • FL305 on cone OK (contaminated diamond, elevated p-stop current but stable)
  • FL306 center contaminated diamond replaced elevated p-stop current but stable, on cone 10/18 OK
  • FL307 on cone OK (elevated p-stop current but stable)
  • FL308 center contaminated diamond replaced, elevated p-stop current but stable, on cone 10/18 OK
  • FL309 on cone OK
  • FL310 elevated p-stop current but stable, on cone OK
  • FL311 on cone OK
  • FL312 on cone (elevated p-stop current but stable)
  • FL313 on cone (elevated p-stop current but stable)
  • FL314 mounted and tested OK 10/26
  • FL315 elevated p-stop current but stable, mounted (10/13) tested OK 10/14
  • FL316 OK mounted 10/18 tested OK
  • FL317: has now been made from HL323 and HL407, diamond is on and the part tests fine we are mounting now.
  • FL318, HL324 being re-built, now called HL325 and HL422 are glued, and diamond has been added today. We hope to mount Thursday.

• 26 ladders (260 wafers x2 L3)
• 100% diamond disassembled
• 100% diamond cleaned
• (10% of diamond was re-cleaned)
• From the above: 29 (need 26) v-beams fabricated, 21 of 29 certified.
• At least 5 more beams to be re-manufactured, therefore 20% of the layer 4 diamond is being re-cleaned Thursday in Chemistry.
• 17 ladders are made
• 0 (4) ladders complete without diamond
• 17 (13) ladders complete with diamond
• 17 (11) of 17 ladders ready for mounting
• 0/26 ladders mounted
• Fraction of all processing complete : 72%

To complete L4 we need to build:

• 9 Full Ladders = 18 HL¹s mostly these are fully processed here is the breakdown:
• ready: HL512, HL540, HL545, HL546, HL552, HL553, HL554 (at CU), (total 7)
• awaits encaps: HL526, HL534, HL539 (at CU) (total 3)
• awaits p-side w.b. HL506, HL557, HL559 (total 3)

5HL need to be built, all wafer chains for these HL¹s are in process but starters not yet at Purdue

• n-side only bonded: WC401, WC455, WC456, WC458
• ready for starter: WC460

COMMENTS ON LAYER 4 HALF LADDERS

HL539 after p-side wire-bonding noisy channels, 47,12 n, p with n/p correspondence. Currents are normal. Can live with this if CU is happy.

HL534 high currents (60 micro n/p) due to crater bond-pad. Status: use as is

HL526 high current (20 micro n/p) no optical inspection yet status: use as is

HL512 special long p-strip wire status OK

HL559 cracked and repaired hybrid status OK

HL553 used extensively for vee testing status OK

HL554 fried at Purdue status OK

HL506 not able to readout at Purdue believed to be due to incompatibility with system status: use

STATUS OF LAYER 4 BY LADDER

• FL401 tested 10/11 part OK for mounting
• FL402 diamond added (10/19) OK for mounting
• FL403 ready for mounting (10/18)
• FL404 diamond added (10/19) OK for mounting
• FL405 diamond added (10/19) OK for mounting
• FL406 diamond added (10/14) OK for mounting
• FL407 diamond added 10/15 OK for mounting
• FL408 tested 10/11 part OK for mounting
• FL409 diamond added (10/19) OK for mounting
• FL410 diamond added part OK for mounting
• FL411 diamond added part OK for mounting
• FL412 diamond added part OK for mounting
• FL413 diamond added 10/6 OK for mounting
• FL414 diamond added OK for mounting
• FL415 diamond added part OK for mounting 10/15
• FL416 diamond added part OK for mounting 10/18
• FL418 diamond added part OK for mounting 10/18