Active alignment/contact verification system

Patent · Sat Jan 01 00:00:00 EST 2000

OSTI ID:873365

Greenbaum, William M ^[1]

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1. Modesto, CA

A system involving an active (i.e. electrical) technique for the verification of: 1) close tolerance mechanical alignment between two component, and 2) electrical contact between mating through an elastomeric interface. For example, the two components may be an alumina carrier and a printed circuit board, two mating parts that are extremely small, high density parts and require alignment within a fraction of a mil, as well as a specified interface point of engagement between the parts. The system comprises pairs of conductive structures defined in the surfaces layers of the alumina carrier and the printed circuit board, for example. The first pair of conductive structures relate to item (1) above and permit alignment verification between mating parts. The second pair of conductive structures relate to item (2) above and permit verification of electrical contact between mating parts.

• Research Organization: Lawrence Livermore National Laboratory (LLNL), Livermore, CA (United States)
• DOE Contract Number: W-7405-ENG-48
• Assignee: Regents of University of California (Oakland, CA)
• Patent Number(s): US 6143989
• OSTI ID: 873365
• Country of Publication: United States
• Language: English

Related Subjects

active
alignment
contact
verification
involving
electrical
technique
close
tolerance
mechanical
component
mating
elastomeric
interface
example
components
alumina
carrier
printed
circuit
board
extremely
density
require
fraction
mil
specified
engagement
comprises
pairs
conductive
structures
defined
surfaces
layers
pair
relate
item
permit
circuit board
electrical contact
printed circuit
comprises pairs
close tolerance
mechanical alignment
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