Standard Probe Tips / Needles
Contacting a trace on a PCB or a (Semiconductor)Substrate does not always require ultimate mechanical precision or superb electrical performance. Sometimes it is footprint or simply budget governing the situation.
Here is a list of standard probe tips/needles:
|
Probe Tip Model |
Description |
|
SE-T |
Tungsten, 5 um tip, 25mil shank |
|
SE-TZ |
Tungsten, 5 um tip, 25mil shank, “Z” shape |
|
SE-TL |
Tungsten, 5 um tip, 25mil shank, 2" long |
|
SE-TB |
Tungsten, 25 um tip, 25mil shank |
|
SE-20T |
Tungsten, 3.5 um tip, 20mil shank |
|
SE-20TZ |
Tungsten, 3.5 um tip, 20mil shank, “Z” shape |
|
SE-20TL |
Tungsten, 3.5 um tip, 20mil shank, 2" long |
|
SE-20TB |
Tungsten, 20 um tip, 20mil shank |
|
SE-10T |
Tungsten, 1 um tip, 10mil shank |
|
SE-10TZ |
Tungsten, 1 um tip, 10mil shank, “Z” shape |
|
SE-TD |
Tungsten, 3.5 um tip, 20mil copper shank, 1.3 long |
|
SE-S |
Steel, 12 um tip, 25mil shank |
|
SE-SC |
Steel ultrasonic cutter tip, 12 um tip, 0.5" long |
|
SE-TC |
Tungsten Carbide,12 um tip, 25mil shank |
|
SE-TG |
Gold plated Tungsten,10um tip, 20 mil shank |
|
SE-O |
Osmium, 12um tip, 25mil shank |
|
SE-P |
Palladium, 12um tip, 25mil shank |
|
SE-SM |
Tungsten catwhisker, 1 um tip, 20mil shank, 2" long |
|
SE-SMS |
Tungsten catwhisker, 0.2 um tip, 20mil shank, 2" long |
|
SM-35 |
Tungsten, 0.7 um tip, 20mil shank, 1.2" long |
|
SM-10 |
Tungsten, 0.2 um tip, 20mil shank, 1.2" long |
|
SE-BC |
Beryllium Copper, 12um tip, 25mil shank |
|
SE-BCB |
Beryllium Copper, 125um tip, 25mil shank |
As a rule-of-thumb Tungsten is the most attractive probe tip/needle material. Needles are available with lots of different tip radii – ranging from very sharp (a small tip radius) to almost blunt (a very big tip radius). The tip radius determines how comfortable you can land on a specific feature (e.g. a pad or a line) and also how much current you can push into that contact.
Tungsten is quite soft and probe tips can be bent into custom shapes for example to circumvent obstacles such as microscope objectives. Tungsten Carbide on the other hand is very hard. Probe tips made of Tungsten Carbide easily scratch through the oxide on aluminum pads. Treated with care these needles last longer.
More interesting brochures:
SCA Probe Model 50 & 250 Adapter Arm for Signatone Micropositioners
SCA-50 Coaxial High-Frequency or Low-Level Siganl Probe for Signatone Micropositioners
Tip Bending and Probe Holder Bending
Do you have more questions concerning probe needles?
Please contact us...
Norbert Bauer
mail: norbert.bauer@bsw-ag.com
Tel.: +49 (0) 7032 / 895 93-1