SOURCE: CyberOptics Semiconductor, Inc.
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July 31, 2008 11:16 ET
Semiconductor Process Engineers Level Equipment With Enhanced Vertical Accuracy, Increased Range of Latest Wireless Inclinometer From CyberOptics Semiconductor, Inc. -- WaferSense™ ALS2 Vertical
WaferSense ALS2 Vertical's 300mm Light Version Directly Enters Chambers, New LevelReview Software Allows for Offline Review and Analysis
BEAVERTON, OR--(Marketwire - July 31, 2008) - The R&D group at a developer of wireless metrology devices for wafer
processing equipment, CyberOptics Semiconductor, Inc. (CSI), has
characterized a new MEMS sensor to improve by 10x and 3x the vertical
accuracy and range of the company's latest incarnation of its wafer-like
auto-leveling inclinometer for fabs, the WaferSense Auto Leveling System 2 (ALS2) Vertical, according to
Dennis J. Bonciolini, the company's CTO.
Apps engineers at the company, a subsidiary of CyberOptics Corp. (NASDAQ: CYBE), report that, market-wide, fab engineers continue to employ
longstanding manual-alignment techniques to determine the vertical
inclination of wafer processing equipment such as ion implants and wet-station robots, according to Bonciolini.
The absence of more precise vertical inclination metrology data and
station-to-station controls -- as tolerances continue to shrink --
effectively jeopardizes yield and device performance at ion implant and
wet-station processes and causes engineers to take machines offline for
prolonged
re-calibration and troubleshooting maintenance, Bonciolini said.
"You really need insight into your equipment to rein in what have become
significant margins of error in leveling vertical wafer alignments,"
Bonciolini said. "The data is basically going to improve downtime -- and
eliminate any surprises -- and establish a clear relationship between
inclination and yield."
Bonciolini added that the company's latest wireless auto-leveling device
and software, LevelView and LevelReview, are largely intended to allow
fab engineers to obtain real-time vertical and horizontal inclination
measurements. Engineers use the measurements to characterize equipment,
conduct statistical analysis via log file data and establish uniform
metrology standards for process equipment and preventative maintenance
schedules.
The R&D group at CyberOptics Semiconductor worked to improve its wafer-like
leveling device to "extend our reach in the fab" and "further automate
production" of 300mm and 200mm wafers, Bonciolini said.
The company's WaferSense ALS2 Vertical improves the device's vertical
accuracy from +/-0.5 degrees to +/-0.05 degrees and vertical range from
+/-15 degrees to +/-50 degrees. The company also reduced the form factor
of the device's carbon fiber composite housing to develop a light 300mm
version. The light 300mm device weighs 200 grams, down from 240 grams, and
is primarily designed to work on flat surfaces.
CyberOptics Semiconductor's WaferSense ALS2 Vertical is used as an
alternative to the machinist levels, bubble levels and wired devices used
by process engineers to calibrate equipment.
"When you start looking at the cost to shut down your process or damage
wafers, eyeballing it just isn't effective," Bonciolini said.
The WaferSense ALS2 Vertical's key specifications and features include form
factors of SEMI 200mm notch or flat and 300mm, horizontal accuracy of +/-
0.03 degrees within +/-7 degrees, horizontal resolution of +/-0.002 degrees
within +/-14 degrees, operating temperature of 20 to 70 degrees Celsius,
height of 6.3mm, weight of 150gm at 200mm, 240gm at 300mm and 200gm at
300mm (CL version), wireless Bluetooth link, four hour run-time per battery
charge and use with Windows 2000, XP and Vista.
The WaferSense ALS2 Vertical package includes the leveling wafer,
USB-compatible link, LevelView and LevelReview graphical software CD,
charging case and suitcase.
The WaferSense family of products includes the Auto Leveling System (ALS),
Auto Teaching System (ATS), Auto Gapping System (AGS) and Auto Vibration
System (AVS). Each device follows the processing life of a wafer.
About CyberOptics Semiconductor, Inc.
CyberOptics Semiconductor develops automated products that seamlessly
measure critical parameters in semiconductor fabrication processes and
equipment. The company's pioneering WaferSense line includes wireless
metrology devices for vibration, leveling, gapping and teaching
semiconductor process equipment. The company is the largest producer of reflective wafer-mapping sensors and a leading provider of frame grabber machine vision boards
under its HAMA Sensors and Imagenation brands. CyberOptics Semiconductor
is a subsidiary of CyberOptics Corp. (NASDAQ: CYBE), one of the world's
leading providers of process yield and throughput improvement solutions for
electronic assembly and semiconductor capital equipment companies. For
information, visit http://www.cyberopticssemi.com/, e-mail
CSsales@cyberoptics.com or call 800-366-9131.
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