7074

MODEL 7074 Array Termination

Model 7074 features the advantages of the 753 and 752B in one machine.

• Improved bandwidth accuracy and registration
• Incorporation of the diamond belt for no-touch termination and includes the 75X slotted belts with mechanical positioning hardware
• Offers robust solution for smaller case sizes: such as 0504 and 0603 arrays
• ESI 752B and 753 upgrades boost systems yield and enhanced termination quality for all chip sizes
• Diamond belt avoids stripe damage by eliminating contact with paste stripes at ejection stage
• Compatible tooling with existing ESI 75X system family
• Diamond Belt life increased com-pared to existing dog-bone & standard belt designs
• Incorporates a new eject assembly that is synchronized to the belt index speed avoiding misalignment and chip damage when the part is ejected
• New camera mount, provides unlimited position view of termination and wrap around
• Large removable drip trays
• Paste Wheel handling station

Diamond Belt

• Holds the chip on the edges in a diamond shaped hole, rather than on the sides
• Eliminates the need for mechanical positioning wheels
• Reduces any tendency to smear or damage termination pads
• 4X improvement in termination stripe placement accuracy (+/- 0.0005" for the diamond belt vs. +/- 0.002" for a slotted belt)
• Any slotted belt can be replaced with a diamond belt superior performance, similar cost and useful life
• Chips are loaded into precise self-centering belt openings resulting in higher stripe placement accuracy side or end-load
• Reduces cost, replaceable wear ring instead of the complete chip retainer
• Increases life, new air curtain option reduces friction of chips on wear ring
• Chips loaded in the wrong orientation are blown away for reloading, can improve loading efficiency

Maximum Throughput:
Up to 75,000 part per hour

Drying Oven:
Temperature Max 175o C
Drying time≈2 minutes per side at 50,000 pph throughput

Paste Temperature Control:
15 C to 35 C± 1o C

Tooling:
Soft Grip Diamond Belt
Load Plate
Two Paste Wheels
Pulleys

Physical Dimensions:
Height: 78.5" (190 cm)
Width: 83" (211 cm)
Depth: 33" (84 cm)
Floor Space: 19 ft. 2 (1.8m2)

Facilities Requirement:
Power: 220 V. 3 phase, 50 - 60Hz,
11 kW (other options available
Air: 70 psi, 0.5 cfn clean, dry air

* China patent #ZL97193536.X
* Korea patent #308517
* Japan patent #3167338
* US patent #5863332, 5226382