W SERIES MICRO XRF

The W Series Micro XRF uses poly-capillary optics to focus the X-ray beam to 7.5 µm FWHM, the world’s smallest beam size for coating thickness analysis using XRF technology. This makes it ideal for measuring samples such as BGAs and smaller solder bumps. A 150X magnification camera is used to measure features on that scale; it is accompanied by a secondary, low-magnification camera for live-viewing samples and birds-eye macro-view imaging. Bowman’s dual-camera system lets operators see the entire part, click the image to zoom with the high-mag camera, and pinpoint the feature to be programmed and measured.

A programmable X-Y stage precise to less than +/- 1 µm for each axis is used to select and measure multiple points; Bowman pattern recognition software and auto-focus features also do this automatically. The system's 3D mapping capability can be used to view the topography of a coating on a part such as a silicon wafer.

The standard configuration of W Series instruments includes 7.5 µm optics with molybdenum anode tube (chromium and tungsten are optional) and a high-resolution, large-window Silicon Drift Detector which processes more than 2 million counts per second.

The W Series Micro XRF is the 7th model in Bowman's XRF instrument suite. Like others in the portfolio, it simultaneously measures up to 5 coating layers and runs advanced Xralizer software to quantify coating thickness from the detected photons. Xralizer software combines intuitive visual controls with time-saving shortcuts, extensive search capability, and “one-click” reporting. The software also simplifies user creation of new applications.

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The W Series Micro XRF is most ideal for companies with:

  • The need to test wafers, lead frames, PCBs
  • Requirements to quickly test multiple samples or locations
  • Desire to automate measurement on multiple samples
  • The need to comply with IPC-4552A, 4553A, 4554 and 4556
  • ASTM B568, DIN 50987 and ISO 3497

Product Specification

X-ray Excitation: 50 W Mo target Flex-Beam Capillary Optics @7.5 FWHM
Optional: Cr or W
Detector: Large window Silicon drifted detector with 135eV resolution or better
Focal Depth: Fixed at 0.02″ (0.05mm)
Video Magnification: 150X with micro-view camera on 20″ (508mm) screen (up to 600x digital zoom)
10~20X with macro-view camera
Working Environment: 68°F (20°C) to 77°F (25°C) and up to 98% RH, non-condensing
Weight: 190kg (420lbs)
Programmable XYZ: XYZ travel: 300mm (11.8″) x 400mm (15.7″) x 100mm (3.9″)
XY tabletop: 305mm (12″) x 406mm (16″)
X-axis accuracy: 2.5um (100u”); X-axis precision: 1um (40u”)
Y-axis accuracy: 3um (120u”) ; Y-axis precision: 1um (40u”)
Z-axis accuracy: 1.25um (50u”) ; Z-axis precision: 1um (40u”)
Element Range: Aluminum 13 to Uranium 92
Analysis Layers and Elements: 5 layers (4 layers + base) and 10 elements in each layer.
Composition analysis of up to 25 elements simultaneously
Primary Filters: 4 primary filters
Digital Pulse Processing: 4096 CH digital multi-channel analyser with flexible shaping time. Automatic signal processing including dead time correction and escape peak correction
Processor: Intel, CORE i5 3470 (3.2GHz), 8GB DDR3 Memory,
Microsoft Windows 10 Prof, 64bit equivalent
Camera Optics: 1/4″ (6mm) CMOS-1280×720 VGA resolution
Video Magnification: 150X: with micro-view camera on 20″ screen (up to 600x digital zoom) 10~20X: with macro-view camera
Power Supply: 150W, 100~240 volts; frequency range 47Hz to 63Hz
Dimensions (HxWxD): Internal: 735mm (29″) x 914mm (36″) x 100mm (4″)
External: 940mm (37″) x 990mm (39″) x 787mm (31″)
Other New Features: Z axis crash protection array
Auto focus and focus laser
Pattern recognition
Advanced custom data transfer

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