Waferpedia

Comparison ledger

120 Continuousversus1500

Lapmaster 120 Continuous, PR Hoffman 1500, side by side. Every value shown is drawn from the cited encyclopedia entries.

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Side-by-side comparison of selected equipment models
Attribute
1500PR Hoffman
OEMLapmasterPR Hoffman
CategoryCMPCMP
Wafer size——
Process node——
Introduced——
Production run——
Lifecycle——
Lifecycle milestones——
Control system——
Generation——
FamilyLapmaster 120 ContinuousPR Hoffman 1500
Specifications
Model—85T[1]
Type—Double-sided planetary lapping / polishing machine[1]
Diameter—19 inch[1]
Motor—1.5 horsepower variable speed DC motor with controller[1]
Controller input—208/230V, 50/60 Hz[1]
Carrier—85 tooth carrier[1]
Recommended part thickness minimum—0.010 inch [250 micron][1]
Recommended part diameter maximum—4-1/4 inch [108 mm] or smaller[1]
Maximum part circle—6.6 inch [168 mm][1]
Stainless steel hood—Standard on all PR-1 models[2]
Plate lifter—Standard on the 85 tooth model[2]
Series—1500 SERIES[2]
Machine type—double-sided planetary lapping and polishing machine[1]
Tub—stainless steel tub[1]
Lapping plates—smooth cast-iron lapping plates[1]
Drive gears—cast iron planetary drive gears[1]
Controls—digital lap cycle timer and bottom plate adjustment system[1]
Recommended parts thickness—0.010 inch minimum[1]
Recommended part diameter—4-1/4 inch or smaller[1]

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Sources (2)Every fact above is drawn from these public sources
  1. [1]web.archive.orgweb.archive.org
  2. [2]web.archive.orgweb.archive.org