[Product
Offering][Supplier
Background]
Manufacturing superior products for high
quality PCB drilling, Tri Star provides entry overlay for
accurate small hole drilling, aluminum clad backup for flat,
consistent drill capabilities and THE GOLD SYSTEM, hard
surface, non-aluminum entry and backup.
Backup and entry materials play an important
part in prevention of damage. Entry materials are made from
phenolic, aluminum foil, or paper and ranges in thickness from
.005" to .010". Entry materials serve two purposes.
One, they give drill bit a soft material to enter before
hitting the copper-clad panel. This improves accuracy and
prevents burrs (little spurs of copper created where the drill
enters the panel). Two, when a drill retracts from the stack,
the entry material helps to clear debris from the drill bit. A
Backup board, placed on the bottom of a stack of panels, is
composed of phenolic paper composite or aluminum foil-clad
fiber composite. Its purpose is to prevent burrs from forming
on the bottom panel and to protect the drill table. Backup is
most often .093" thick.
Product
Offering
•TRISTAR
TSA Backup (pdf)
•TRISTAR
Spectrum
Gold Backup
(pdf)
•TRISTAR Entry
(pdf)
•TRISTAR
Tooling Stock
(pdf)
