Two pitch adapters bonded to MCM PWBs, for evaluation in Italy.
Inspection Record (pdf)
Metrology Report (pdf)
Objective-
Provide the Italian team
with two TMCM PWBs with Pitch Adaptors installed using the current Teledyne
bonding, trimming and inspection processes.
The Italian Team is to evaluate the Pitch Adaptor installation and determine
the acceptability as it pertains to wire bonding performed on the Italian side.
Background-
Two TMCM PWBs (Serial No.
515 & 573) with bonded and trimmed Pitch Adaptor have been pulled from
Teledyne's preproduction run. These
samples are NOT populated with SMT components, connectors, ASICs, wire bonds,
encapsulation, or conformal coating.
The two Pitch Adaptor
samples were randomly selected from the second lot (lot size=8) of Teledyne's
preproduction PWBs. These samples are
representative of Teledyne's current Pitch Adaptor bonding and trimming process
capabilities.
A visual inspection was
performed at Teledyne by David Rich on 12/5/03 using the Pitch Adaptor
Inspection Procedure. The Pitch Adaptor
Inspection procedure for preproduction is a draft which will be released prior to
flight production. Reference
(InspectionRecord.pdf) for Pitch Adaptor Inspection Results.
Noted on inspection of
Serial No. 515, that one (1) single trace located on the Italian side is
partially lifted. This one element
would have suspect and would have to be dispositioned under current inspection
criteria.
The samples were hand
carried to SLAC Inspection Lab where the samples were measured for straightness
along the Italian edge using an optical comparator.
TMCM Serial No. 515 was
straight within 0.0587 mm and Serial No. 573 was straight within 0.0713
mm. Reference (MetrologyReport.pdf).
The TMCM PWB samples will be
packaged for hand carry to Italy. The
TMCM PWBs are individually secured in their plastic protective cases (fastened
by six mounting screws) and the protective cases are sealed in clean plastic
bags. Jeff Tice will provide the Pro
Forma Invoice documenting contents.
Jeff Tice confirmed that he has delivered these sample TMCMs to Mr.
Bellazzini today at SLAC.