Test Fixtures - Feinmetall GmbH

Finepitch fixture
with rigid probes
For various test systems
→ agilent
→ Teradyne
→ Digitaltest
→ spea
→ aeroflex
→ and others
At test fixtures with rigid probes, the
fine pitch of the DUT is transferred to a
standard pitch of 2,54 mm. This is realised
by tangential deviation of the rigid
probes up to 6 degree.
The rigid probe test head is assembled on
top of any standard vacuum fixture kit
and is applicable for all test systems.
Special features
→ fine pitch down to 30 mil, feasible for larger area
→ easy replacement of rigid probes
→ contacting via vacuum hood
→ cost efficient for large number of test points with centers ≤50mil
→ for wired component contacting rigid probes with tip style 06
(Serrated Head) and 14 (4-Point Crown Head) are available.
→ possible to contact on both sides
→ special data generation for Agilent 3070 possible
Finepitch-Fixture (0,3 mm needles)
Minimum distance mm mil Recommended Dimension*
Test point - test point 0,50 20 A
Test point - component (smaller 3 mm) 0,50 20 min 0,8 mm B
Test point - component (higher 3 mm) 0,76 30 B
Diameter centering hole tolerance ±0,05 ±2
Test point - centering hole 0,50 ±0,03 20 min 0,8 mm D
Test point to board edge 0,3 12 E
Minimum test point size 0,35 14 F
Finepitch-Fixture (0,5 mm needles)
Minimum distance mm mil Recommended Dimension*
Test point - test point 0,76 30 A
Test point - component (smaller 3 mm) 0,76 30 min 1,0 mm B
Test point - component (higher 3 mm) 1,0 40 B
Diameter centering hole tolerance ±0,05 ±2
Test point - centering hole 0,76 ±0,05 30 min 1,0 mm D
Test point - board edge 0,3 12 E
Minimum test point size 0,4 15 0,6 F
* see drawing on page 5
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