Aluminium pre-entry board for CNC drilling printed circuit board is placed on the top of the stack before drilling. Being aluminium it acts as a heat sink and it’s soft structure provides a good stable entry point for the rotating drill bit. Aluminium entry board can reduce ‘drill wander’ significantly. This is of importance especially when machining Via & buried Via holes in modern Multi layer or Flexible pcb’s
Haomei's
Printed Circuit Board (PCB) entry sheets are manufactured with state-of-the-art equipment which matches international standards. Tight thickness tolerance, flatness, dimensional accuracy and grease-free surface and hardness optimal for burr-free drilling required in the manufacture of PCB are ensured.
Continuous upgrades and process improvement enable us to keep pace with the demands of its ever-growing clientele.