4-Point Probe [NPS Version]

4-point probe is a high accuracy probe for measurement of resistivity.
DC Four Point Probe systems is one of the most reliable methods for resistivity or sheet resistance measuring of conductive materials.
It is a well known fact among engineers that the quality of the probing apparatus greatly affects the probing accuracy.
Especially, durability is important during the measurement of semiconductor materials as well as the accuracy.
Our 4-point probe manufactured by skilled worker is universally acknowledged as a high accuracy probe, and now many enterprise use the device as standard.
Needle is made of low-conductivity metal and tip is made of high-durability metal.  We ensure the accurate measurement of variety samples by conducting NPS's unique "Micro-edge contact" treatment. (IP, MT, SB, EP etc. for types of wafers )
We possesses a lot of experiences and solid accomplishments in this field.

<Features>
high accuracy, hight durability, world standard instrument, quick repair, unique design, etc.

​【Related products】Sheet Resistance Measuring Instruments

■ 4-Point Probe
Each part constituting the 4-point probe is made from the development and production of dedicated processing machines.  
By doing quality control from manufacturing to shipping by full-time technical staff, it is possible to provide high-precision, high-durability 4-point probes. 
In addition, in order to respond to requests from domestic users and with years of our experience, we set up our own specifications and assemble them.
The JS type which NPS supplies is 4-point probe of the world highest quality.
■ Hand-Probe
It is a handy type 4-point probe which can be easily measured on hand.
It can be used for ingots etc.
■ 0.1mm Pitch
MODEL SEP-4 is a 4-point probe for measuring sheet resistance with a needle spacing of 0.1 mm pitch.  Since the distance between the four needles is as small as 0.3 mm (linear), the influence range of electric field energy is small, and even in the case of a pad with a small area of 5 × 5 mm, sheet resistance measurement is not affected by electric field power from the edge to around 0.5 mm.