History of MCM 120

1. ?-May-99: arrival at LANL, visually inspected
2. ?-May-99: at LANL, glue output cable to MCM
3. ?-May-99: sent to Pace to install surface mount components, wirebonding, encapsulation
4. ?-May-99: no official quality control, but attempts to get this working failed .
5. ?-May-99: some surface mount components fell off (probably, we know they fell off some in a group of 3 containing this MCM, but do not have more detailed records)
6. ?-May-99: "poke-test" on remaining surface mount components
7. ?-May-99: sent pack to pace to replace backwards capacitors and re-install components which fell off. I'm not sure but maybe all components were pulled off and replaced at this time.
8. ?-May-99: visual inspection, no problems reported.
9. ?-May-99: no formal inspection, but unofficial QA testing -- no problems seen.
10. 24-Jun-99: at LANL, attached silicon detector via kapton cable
11. 24-Jun-99: send to Pace for wirebonding and encapsulation
12. 8-Jul-99: send to Pace to replace some surface-mount components which were falling off
13. 20-Jul-99: sent to Pace to have 4 surface mount caps replaced
14. 10-Aug-99: probe surface mount components, loose components, judged OK
15. 6/10-Aug-99: no official QA, but it was tested and judged OK
16. 18-Aug-99: "official" QA testing at LANL, failed -- completely dead. Somehow damaged at LANL, perhaps by misunderstanding Si bias connections.