Carl Zeiss H-Pi Max Erb H-Stand Trinocular Semiconductor Microscope 8 Inch Wafer

Carl Zeiss H-Pi Max Erb H-Stand Trinocular Semiconductor Microscope 8 Inch Wafer

This system pairs a Carl Zeiss H-Pi trinocular microscope body (manufactured in West Germany) with a Max Erb Instrument Company H-Stand gantry frame designed to accommodate large semiconductor wafers up to 8 inches in diameter. The H-Stand configuration suspends the microscope above a wide, open stage area, providing the clearance and working distance needed to inspect full-size 200mm wafers without obstruction. A Carl Zeiss 910112 6V/30W illuminator is included and has been tested — the lamp and bulb are confirmed functional. Note: the fine focus adjustment knob is not working; the coarse focus knob operates normally. Eyepieces and objectives are not included.

Specifications & What's Included

• Microscope body: Carl Zeiss H-Pi — Made in West Germany
• H-Stand / gantry frame: Max Erb Instrument Company, Burbank, California
• Head type: Trinocular (two eyepiece tubes + one camera/photo port)
• Eyepiece tube diameter: 23mm
• Nosepiece: Four-position objective turret (no objectives included)
• Stage: Large flat stage configured for semiconductor wafers up to 8 inches (200mm)
• Coarse focus: Operational — calibrated dial knob with graduated scale, over 25mm vertical travel
• Fine focus: Not functioning — knob does not operate
• Light source: Carl Zeiss model 910112
• Light source rating: 6 Volt, 30 Watt
• Light source status: Tested good — lamp and bulb confirmed functional
• Light source note: Analog AC Volts meter present; protective meter cover is missing
• Eyepieces: Not included
• Objectives: Not included
• Microscope overall dimensions: approximately 20 × 10 × 20 inches
• Light source overall dimensions: approximately 8 × 5.5 × 3.5 inches

Applications

H-Stand microscopes of this configuration are a classic tool in semiconductor fabrication and inspection environments, designed specifically to give operators unobstructed overhead access to large, flat substrates — most notably silicon wafers. The extended gantry frame allows the microscope to be positioned above wafers too large to fit on a conventional stage, making this type of system standard equipment in wafer inspection, photolithography quality control, and process verification workflows during the era when 4-inch, 6-inch, and early 8-inch wafers were in production (roughly the 1970s through the 1990s). Carl Zeiss H-Pi optics were widely used in both semiconductor and materials research settings for their optical quality and modular compatibility. The trinocular head allows simultaneous binocular viewing and camera documentation — important for process recording and defect analysis. Systems like this also appear in university materials science labs, industrial quality control stations, and anywhere that requires inspection of large flat specimens at low-to-medium magnification. The included Zeiss 910112 illuminator provides reflected-light (episcopic) illumination suited to opaque specimens such as wafer surfaces and thin-film coatings.