Engineering With Integrity

SII, or Signal Integrity, Inc. are electro-mechanical design engineers focusing on fine pitch, high-power, and high-frequency electrical contact systems, primarily targeting the semiconductor and PCB module test market.

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custom ic test socket and spring probes

IC Test Sockets

Signal Integrity’s custom test socket designs target your application’s specific mechanical, power and AC requirements. We leverage our extensive catalog of spring probe technology to deliver test socket and ATE connector solutions with extended lifetime, minimal maintenance, and very low cost per insertion.

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Spring Probes

Signal Integrity’s core contact technology is the spring probe. Our probe designs are the result of 25+ years of innovation and continuous improvement. Our probe designs feature proprietary clad metal barrels, best practice custom spring design, and advanced interface contact geometry and material science simulation. The scope of our probe catalog will fit any kit requirement, a wide range of contact surfaces force requirement, and the broadest operating temperatures.

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Spring Contact Assemblies

We adapt our spring and probe components to deliver micro-miniature pressure-release contact assemblies. These address military, medical and wearable contacts used in prototyping and testing. We focus on engineering, system test, R&D and small lot environments that require custom fitted, vertical point-to-point temporary contact. We build all types of board-to-board risers, ATE instrument connectors, pitch translators, and angled, high density connectors.

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200+ COLLECTIVE years test cell experiEnce

Our leadership team shares collectively more than 200 years of engineering and manufacturing experience.

1500+ Proprietary Component Library

We can recommend products from our standard library of probes, or customize existing probe designs to provide the best combination of current carrying capacity and high speed IO performance in the same connector assembly.

0.2mm Fine Pitch; Up to 70GHz Contact Performance

We have contact design solutions to cover a broad range of pitch, power, and high frequency specifications to solve our customers’ most difficult test contact challenges. 

25+ Years of Socket Design Wins Across All Major Companies

Our probes are designed into test sockets for virtually every major semiconductor company since October 2000.

COMPANY

We are device under test specialists

About Signal

01

Collaborative Engineering Partner

We are a value-added engineering partner with the talent and experience to address your contactor challenges from engineering prototyping to high-volume semiconductor testing.

02

Lifetime Performance

We make what we believe are the highest quality spring probes with the potential to double or triple the lifetime of our competitors’ probes in volume production.

03

Extensive Material IP

With over 4,000 combinations of probes and components, we can build sockets and die probe fixtures, and we have a catalog of pins to meet almost any IC test application.

04

Expedited Delivery & Design

Short 24/7 design cycles, fast delivery and expert application support for any project size; from single engineering module prototypes to massively parallel, high volume sockets.

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Services

How Can Signal Integrity Help

Engineering

Our engineering team has the broad and deep test cell and device application expertise to help our customers design test sockets and contact solutions with the goal of reaching optimal performance and contact life for the most challenging test solutions.

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Design

Our designs are supported by a full range of 3D mechanical, thermal, and electrical simulations using SolidWorks and Ansys HFSS to ensure repeatable, stable, and predictable contact performance.

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Manufacturing

We utilize components from our extensive library of probes, springs, and plungers to provide the best combination of current handling capacity and high speed IO performance in the same connector assembly.

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Customer Reviews

Through the 25 years of doing business with them I have gotten to know them intimately. They have a first-class sales and design center to meet your needs. Their in-house assembly and inspection department ensures that everything shipped meets all quality standards, and their deliveries are on time.

John S. D’Imperio

Owner/JD Design, LLC/JD Interconnex

Communicating new socket requirements to SII’s design team was always easy and produced socket layout details quickly and accurately. This combined with accurate delivery quotes allowed our design teams to stay on schedule. SII’s team controls the complete design and manufacturing process. Product quality was always at the highest levels.

Bill Schoppee

Sr. Staff Mechanical Engineer/Invensense

The SII team delivered on-time interconnect solutions for a variety of LGA/BGA chip packages…Over the many years, given our ever-changing product requirements, the SII team delivered in many categories: electrical (power, frequency), mechanical and reliability, and on-time delivery. The SII team was a reliable supplier, exceeding expectations in all areas.

PE Hardware Engineer/NXP