July, 2017
www.us-tech.com
Page 71
“V8 Power” and Nanometer Precision in PI Piezo Motor
Auburn, MA — PI (Physik Instru - mente) has introduced a new, robust OEM walking motor drive, the N-331, with its configuration rooted in exist- ing patented piezo actuator technology and a patented piezo stepping motion principle design. Unlike traditional electromag-
netic motors, piezo motors do not cre- ate magnetic fields, nor are they
they automatically hold position without any need for power. PI’s PICMAWalk piezo linear
motor uses eight PICMA® piezo actu- ators arranged in a V-shape, similar to a classic V8 engine, to achieve high push/pull and holding forces along with nanometer precision. The space-tested PICMA actua-
tors are reliable, providing 60N power-off holding force and 50N push/pull force. The maximum velocity is speci- fied at 15 mm/s (0.6 in./s) and loads
up to 5 kg (11 lb) can be positioned with nanometer precision. The units are available with
three standard travel ranges from 25 to 100 mm (1 to 3.9 in.) in both open and closed-loop configurations. The closed-loop models incorporate a high- precision incremental encoder with nanometer resolution. The calculated piezo-mechanical resolution is accu- rate to one tenth of a nanometer. For maximum precision and reli-
ability, the piezo actuators are inte- grated in a solid-state flexure guiding
system, free of friction. Flexure ele- ments combine high stiffness and load capacity. They do not require mainte- nance or lubricants, are 100 percent vacuum compatible, function in a wide temperature range, and are
intrinsically wear-free. Contact: PI (Physik
Instrumente) L.P., 16 Albert Street, Auburn, MA 01501 % 508-832-3456 E-mail:
info@pi-usa.us Web:
www.pi-usa.us
See at SEMICON West, Booth 7219
N-331 piezo linear motor actuator.
influenced by magnetic or electric fields — a characteristics that is advantageous in applications from e- beam lithography to MRI technology. When large optics, detectors or
camera setups in industrial applica- tions need to be positioned with nanometer precision, it can be bene- ficial to cut the actuator power once the fine positioning process is com- plete.
If a motor or actuator is depend-
ent on a continuous current draw to hold a position, heat dissipation, electromagnetic fields and thermal effects may have negative influences on the performance of the system. PICMAWalk motors are self-clamp- ing; at rest or in steady-state mode
Plasma Etch Exhibits Plasma Cleaning Solutions
Carson City, NV —Plasma Etch is pro- viding live demonstrations of two of its most popular products, the PE-50 plas- ma cleaner and the plasma wand. The PE-50 is an affordable,
entry-level option for most types of plasma treatment. The unit is very popular at universities and research labs. Plasma Etch credits the PE-50’s success to its versatility and robust design. The PE-50 has simple con- trols and easy-to-read indicators for monitoring the plasma sequence. The plasma wand was intro-
duced by the company in 2016 to meet the need for a convenient, handheld plasma product for spot cleaning and research work. The wand is about the size of an electric toothbrush and requires only electricity to operate; no input gas needed. The plasma wand provides atmospheric plasma capable of increasing the bond strength and
printability of most surfaces. Contact: Plasma Etch, Inc.,
3522 Arrowhead Drive, Carson City, NV 89706 % 775-883-1366 Web:
www.plasmaetch.com
See at SEMICON West, Booth 6461
1 2 16:36
Page 1 |
Page 2 |
Page 3 |
Page 4 |
Page 5 |
Page 6 |
Page 7 |
Page 8 |
Page 9 |
Page 10 |
Page 11 |
Page 12 |
Page 13 |
Page 14 |
Page 15 |
Page 16 |
Page 17 |
Page 18 |
Page 19 |
Page 20 |
Page 21 |
Page 22 |
Page 23 |
Page 24 |
Page 25 |
Page 26 |
Page 27 |
Page 28 |
Page 29 |
Page 30 |
Page 31 |
Page 32 |
Page 33 |
Page 34 |
Page 35 |
Page 36 |
Page 37 |
Page 38 |
Page 39 |
Page 40 |
Page 41 |
Page 42 |
Page 43 |
Page 44 |
Page 45 |
Page 46 |
Page 47 |
Page 48 |
Page 49 |
Page 50 |
Page 51 |
Page 52 |
Page 53 |
Page 54 |
Page 55 |
Page 56 |
Page 57 |
Page 58 |
Page 59 |
Page 60 |
Page 61 |
Page 62 |
Page 63 |
Page 64 |
Page 65 |
Page 66 |
Page 67 |
Page 68 |
Page 69 |
Page 70 |
Page 71 |
Page 72 |
Page 73 |
Page 74 |
Page 75 |
Page 76 |
Page 77 |
Page 78 |
Page 79 |
Page 80 |
Page 81 |
Page 82 |
Page 83 |
Page 84 |
Page 85 |
Page 86 |
Page 87 |
Page 88 |
Page 89 |
Page 90 |
Page 91 |
Page 92