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SiTime Introduces the World's Smallest and Thinnest High-Q, MHz Resonator.


The SiT0100 SiRES(TM) MEMS (MicroElectroMechanical Systems) Tiny mechanical devices that are built onto semiconductor chips and are measured in micrometers. In the research labs since the 1980s, MEMS devices began to materialize as commercial products in the mid-1990s.  Resonator resonator /res·o·na·tor/ (rez´o-na?ter)
1. an instrument used to intensify sounds.

2. an electric circuit in which oscillations of a certain frequency are set up by oscillations of the same frequency in another
 is Fully Compatible with All Standard Semiconductor Packaging for System-In-Package "SIP" and Multi-Chip Module "MCM (MultiChip Module or MicroChip Module) A chip package that contains several bare chips mounted close together on a substrate (base) of some kind. " Solutions

SUNNYVALE, Calif. -- SiTime, a privately held Silicon Valley startup bringing the first MEMS based all silicon timing solutions to market, introduces the world's smallest and thinnest megahertz One million cycles per second. See MHz.

MegaHertz - (MHz) Millions of cycles per second. The unit of frequency used to measure the clock rate of modern digital logic, including microprocessors.
 resonator, SiT0100. The resonator measures only 0.8 mm tall x 0.6 mm wide x 0.15 mm thick. The resonator is shipped in die form and is far smaller than the nearest quartz resonator. Unlike quartz, the megahertz resonator may be placed in a multiple chip module or system-in-package solution and handled as any semiconductor die. The resonator may be wire bonded or flip chipped and then plastic encapsulation with no substantial change in performance.

"SiTime offers this tiny resonator to the technical community knowing that it will find a home into applications we cannot conceive of. This is not simply a quartz replacement technology, but a technology that will stand on its own enabling more functional, smaller, higher value, and more reliable products," said Markus Lutz, co-inventor and co-founder of SiTime.

The SiT0100 SiRES(TM) resonator operates at 5.1 MHz (MegaHertZ) One million cycles per second. It is used to measure the transmission speed of electronic devices, including channels, buses and the computer's internal clock. A one-megahertz clock (1 MHz) means some number of bits (16, 32, 64, etc.  and has a Q of approximately 80,000. The phase noise performance is -115 dBc / Hz @ 10 kHz allowing it to be used in most consumer, automotive, and industrial frequency control applications. The device is passive and consumes no power. When combined with an oscillator oscillator

Mechanical or electronic device that produces a back-and-forth periodic motion. A pendulum is a simple mechanical oscillator that swings with a constant amplitude, requiring the addition of energy at each swing only to compensate for the energy lost because of air
 circuit the power consumption is similar to quartz devices with similar Q's.

While SiTime's MEMS oscillators are design to directly replace quartz oscillators, SiTime's MEMS resonators are not directly compatible with Quartz resonators. MEMS resonators require a unique drive circuit and a stable bias voltage for proper operation. SiTime has prepared a design-in kit, SiT0100DK, complete with a detailed datasheet, LRC (Longitudinal Redundancy Check) An error checking method that generates a parity bit from a specified string of bits on a longitudinal track. In a row and column format, such as on magnetic tape, LRC is often used with VRC, which creates a parity bit for each  model, an example 0.18 um CMOS (Complementary Metal Oxide Semiconductor) Pronounced "c-moss." The most widely used integrated circuit design. It is found in almost every electronic product from handheld devices to mainframes.  drive circuit, and documentation for rapid and successful design-in and final plastic packaging of this new technology. The SiRES(TM) resonator design-in kit is available from SiTime under a non-disclosure agreement which includes 3 days of on-site support.

The SiT0100 is manufactured with SiTime's proprietary MEMS First(TM) and EpiSeal(TM) process, which is designed to withstand extremely harsh environmental conditions allows the device to endure the rigors of plastic molding, wire bonding, lead-free soldering, and will perform well in tough automotive and industrial reliability tests. Due to small size and mass the resonator is highly reliable and able to withstand 30,000 G's of shock and a 50 Hz to 1 kHz 15 G continuous sine wave.

The EpiSeal(TM) process encapsulates the resonator in an extremely clean, high vacuum cavity. This vacuum cavity allows the single crystal silicon beam to resonate in a completely contamination free environment. This near perfect resonating environment yields a part that ages less than 0.15 ppm per year for 25 years with no detectable thermal hysteresis hysteresis (hĭs'tərē`sĭs), phenomenon in which the response of a physical system to an external influence depends not only on the present magnitude of that influence but also on the previous history of the system. , thus eliminating frequency error sources that are impossible to calibrate. The remaining frequency error sources are a function of well characterized ultra pure single crystal silicon and 0.18 [acute accent]m CMOS processing. A single point temperature calibration will yield a resonator that is better than +/-50 ppm over -40 to 85 C and typically +/- 10 ppm.

The SiT0100 is available now in 1 MU and 10 MU quantities priced at $0.35 to $0.25 respectively. The SiT0100DK development kit is available for $150K. For more information please contact your local SiTime sales representative or www.sitime.com.

About SiTime

SiTime Corporation develops MEMS silicon resonators and related products. The MEMS First(TM) and EpiSeal(TM) process licensed from Robert Bosch GmbH Robert Bosch GmbH [1] is a German corporation which was started in 1886 by Robert Bosch in Stuttgart, Germany. [2]

Bosch businesses include:
  • automotive parts and systems supplier;[2]
 has removed the technical barriers preventing wide acceptance of this quartz replacement technology. Key benefits are the small size, high reliability, and low cost. However, many benefits of the technology are still to be fully realized in future value added components. These future benefits include MEMS + CMOS integration, multiple resonators per die, and system benefits derived from a captive time source. SiTime's primary investors are Greylock, NEA NEA
abbr.
1. National Education Association

2. National Endowment for the Arts

NEA (US) n abbr (= National Education Association) → Verband für das Erziehungswesen
 venture capital firms Name Location Founding date Managing Partners/Directors Specialty Capital managed
5AM Ventures Menlo Park, CA; Waltham, MA 2002 John Diekman, PhD (managing partner), Scott Rocklage, PhD (managing partner), Andrew Schwab (managing partner) life sciences $200M [1]
 and Robert Bosch GmbH. More information about SiTime and SiRes(TM) samples for select customers is available at www.sitime.com or www.sitime.jp
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Copyright 2006, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Publication:Business Wire
Date:Oct 23, 2006
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