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CLASS 100 CLEANROOM OVENS
3-40 cu. ft. capacity
UL Listed controls
Class A flammable
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HEPA recirculated air filters
www.grievecorp.com 847-546-8225
www.us-tech.com
March, 2018 INGUN Creates RF Probe for Quantum
environments to the full-scale intro- duction of universal quantum com- puters. INGUN has helped to develop an
Computing Applications S
By Matthias Zapatka, CTO, INGUN USA, Inc.
tep-by-step, quantum comput- ing architectures are being inched from laboratory-type
forensics, security and cryptology. In a binary system, each bit is
interconnect solution which replaces traditional bond wiring. This has paved the way for scalability at the Institute of Quantum Computing in Waterloo, Ontario, Canada.
Quantum Socket Testing A quantum socket, consisting of
several resonators was the device under test for this application. INGUN went beyond simply testing to add value to the contacting solu- tion. The RF probes stay permanent- ly in the chuck and only make con- tact with the resonator if the chuck is compressed. This is all done at extremely low temperatures. For this application, an apparatus cools down the temperature inside a “freezer” to temperatures just slightly above absolute zero (0 K), which is done is several stages. Around this temperature the
resonators become superconductive. The engineers at INGUN came up with a modified coaxial probe version that uses special beryllium-copper springs and other proprietary mate- rial, making the probe usable in the extreme temperature range. For this setup, the probes also
Award-winning solutions. Call: (618) 205 5007
bofaamericas.com
Fume Extraction and Filtration Systems
Mobile Extraction Arm Extraction
Cabinet Extraction Tip Extraction
have to be strictly non-magnetic. Usually a thin nickel layer is used beneath the gold plating. This is done because nickel works as a carrier or “adhesive” for the gold which ensures a long life and prevents the gold from chipping off from the base material. Because nickel is fer- romagnetic, INGUN had to make sure that not even the slightest bit of nickel was pres- ent when the parts were electroplat- ed. This was difficult as most plating baths are not 100 percent free of con- taminants. A Gauss chamber was later
used to verify that no nickel residue was present on the probes. The probes work from DC to beyond 10 GHz with excellent S-parameter characteristics and can be used for grids down to 0.1 in. (2.54 mm). The tail end of the probe can be connect- ed to 0.47 in. (11.94 mm) diameter coaxial cables by using a special snap-in connector. The special springs were tested
and characterized for their compres- sion at room temperature, in liquid nitrogen (at approx. 77 K) and in liq- uid helium (at approx. 4.2 K). No noticeable difference was found when comparing the cold springs with springs operating at room tem- perature.
EMAIL:
sales@bofaamericas.com WEB:
bofaamericas.com
BOFA AMERICAS, INC
CALL: (618) 205 5007 FAX: (866) 707 2632
See at APEX, Booth 2903
Results of Research Quantum computing has the
potential to handle much more data than traditional computing systems, which is particularly useful for IT
either a 0 or a 1, and it can never be both 0 and 1, but qubits (quantum bits) allow for a superposition of both states at the same time. Because of this, far more computations can be done than with a binary system.
Probe resonator chuck. What started as a research proj-
ect has evolved into useful findings for probe usage for other industries, such as the automotive industry, mil- itary, space and aviation. In all these industry segments, parts have to be cycled with large temperature swings. Until this latest research, some of INGUN’s products could be used down to –40°F (–40°C), but were never tested below that.
Probe tip and body. As a result of the project,
INGUN gained experience with 100 percent nonmagnetic base materials, which could greatly benefit the med- ical industry. The body of the probe uses “ecobrass” material. The 100 mil probe is available
from INGUN with the part number HFS-847 301 038 A 1200 M-S-Y. The SE-847 V-S-5 plug should be used. When assembling cable, use non- magnetic RF connectors. Contact: INGUN USA, Inc., 252
Latitude Lane, Suite 105-106, Lake Wylie, SC 29710 % 803-831-1200 fax: 803-656-5080 E-mail:
mailbox@ingun.us Web:
www.ingun.us r
See at IPC APEX, Booth 3407 Additional literature: “Three-
Dimensional Wiring for Extensible Quantum Computing: The Quantum Socket,” Physical Review Applied, October 2016. “An Introduction to Coaxial RF Probing Solutions for Mass-Production Tests,” ARFTG Conference Digest, Fall 74th. Broomfield, CO, December 2009, p. 87-92.
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