The Mech-El/MEI 827 has been produced since 1974 and is still the bonder of choice for many of our customers.  The MEI 827 may be the simplest most reliable ball bonder ever produced.


Bonding Processes: Thermocompression or thermosonic ball bonding using gold wire.
Wire sizes:  1 mil (25 micron) wire standard.  0.7 mil (18 micron), 2 mil (51 micron), and 3 mil (76 micron)
capability available.
Tip Weight: 15 - 150 grams.
Capillary size: 0.063" x 0.375" (1.6mm x 9.5 mm) standard.
Heated Workstage: Digital heat control option will regulate temperature from ambient to 300C +/- 0.5% (dependant
upon application).
Ultrasonics: Uthe 10G generator with 25ST transducer standard.
Micropositioner: 6:1 standard.  
Services: Electrical: 110-115 VAC, 50/60Hz, 5 amps or 220-240 VAC, 50/60Hz, 2.5 amps. Air: 40 PSI (240 kPa)
                minimum, if required.
Vacuum: 20" (510 mm) Hg minimum, if required.
Dimensions:   Length: 
Width: 18" (45.7cm)
Height 17.75" (45.1cm)
Net Weight: 40 pounds (18 Kg)

*Note: Exact dimensions are dependent upon the options on the machine.