FIRST MGPA V 2 TEST RESULTS with IPNL

FIRST MGPA V 2 TEST RESULTS with IPNL SETUP And MGPA V 2 TEST PRODUCTION R. Della-Negra, M. Dupanloup, J. Fay, S. Gascon, H. El Mamouni, B. Ille, H. Mathez CMS FRANCE MAI 2004 h. mathez 1

MGPA V 2 TEST SETUP (0) Differential to single ended 50 W output MGPA V 2 test board I 2 C Cinj = 1. 0 p. F 50 W input Scope or CSA 803 3 Gains Calibrated Bessel Filter 30 ns PC Labview Pico. Pulse Gen Trigger ± 40 V in 400 ps Data CMS FRANCE MAI 2004 h. mathez 2

MGPA V 2 TEST SETUP (1) ARIES SOCKET CMS FRANCE MAI 2004 h. mathez 3

FEW PLOTS (0) X 1 Q=40 p. C, Gain X 1 Rs 1 = 3. 3 Ohms Rs 2 = 4. 7 Ohms Rs 1 = 10 Ohms Rs 2 = 10 Ohms CMS FRANCE MAI 2004 h. mathez 4

FEW PLOTS (1) X 1 X 6 X 12 PA CMS FRANCE MAI 2004 h. mathez Qin = 4. 5 p. C Rs 1, 2 = 10 Ohms After Reset, I 2 C = 64 Pkt X 1 » 50 ns Pkt X 6 » 50 ns Pkt X 12 » 50 ns Pkt PA » 25 ns 5

FEW PLOTS (2) X 12 m PA X 12 p Qin = 4. 5 p. C Rs 1, 2 = 10 Ohms After Reset I 2 C = 64 X 1 plus and minus output Base line are : • 799. 2 m. V = 0. 8 V (ADC input) • 1488. 8 m. V < 1. 7 V (ADC input) CMS FRANCE MAI 2004 h. mathez 6

FEW PLOTS (3) X 1 m PA X 1 p Qin = 40 p. C Rs 1, 2 = 10 Ohms After Reset I 2 C = 64 X 1 plus and minus output Base line are : • 670 m. V < 0. 8 V (ADC input) • 1527 m. V < 1. 7 V (ADC input) CMS FRANCE MAI 2004 h. mathez 7

FEW PLOTS (4) Peaking Time Gain X 1 and X 6 CMS FRANCE MAI 2004 h. mathez 8

FEW PLOTS (5) Power Supplies 573 m. W CMS FRANCE MAI 2004 h. mathez 9

PRELIMINARY YIELD Chips tested : 133 Bad chips : 7 YIELD ~ 95% CMS FRANCE MAI 2004 h. mathez 10

MECHANICAL PROBLEMS (0) Socket : with microstrip, same technology as previous (FPPA) package EDQUAD 52 pins ASAT NO problems New problems with Aries socket and ASAT TQFP 100 package o The socket was tested with Atlantic package at ARIES house : Some devices present an excess of plastic in the corners Ø Some small chips goes under the microstrip : no electrical contact, the MGPA does not work ! Ø Microstrips could be twisted due to this small chips, the MGPA does not work ! Solutions Ø Very carefully clean up the PCB and the socket CMS FRANCE MAI 2004 h. mathez 11

MECHANICAL PROBLEMS (1) Microstrip CMS FRANCE MAI 2004 h. mathez 12

MGPA V 2 TEST PRODUCTION CMS FRANCE MAI 2004 h. mathez 13

MGPA V 2 TESTING PRODUCTION REQUIREMENTS Start testing production : middle of September (if production starts on middle of june) CMS FRANCE MAI 2004 h. mathez 14

TESTING HOUSES SUM UP (0) CMS FRANCE MAI 2004 h. mathez 15

TESTING HOUSES SUM UP (1) • ASAT Europe business contact is currently overloaded • Microtec and Edgetek appear to be very good candidates Strength Microtec • Experienced • Already used inside CERN Edgetek • • Weakness • Flexibility ? IN 2 P 3 partner for small quantities • Background for high volume French company production Flexibility for custom services Price We would suggest to give to Microtec the MGPA production tests CMS FRANCE MAI 2004 h. mathez 16

TESTING CONCLUSION (MEETING 10 MAY CERN) Buffer Testing House : EDGETEK Forecast Schedule : Ø 100 buffers for June 10 th Ø 5000 buffers for July 15 th MGPA Microtec or Edgetek but we are waiting the Asat’s answer Edgetek seems to be the best way to test the MGPA Forecast Schedule : Ø 1700 MGPA for july 15 th Ø Start testing production : middle of September CMS FRANCE MAI 2004 h. mathez 17