Àç·á
Material
Çü¼º¹ý
Procedure
µÎ²²
Thickness
±â´É
Functions
À±È°¸·
Lubrication film
PFPE µµÆ÷
Coating
10~20¡Ê µð½ºÅ©¿Í ÀÚ¼ºÇìµåÀÇ ¸¶¸ð ¹æÁö µî
Prevention of wear of disk and magnetic head
º¸È£¸·
Protection film
ź¼Ò
Carbon
½ºÆÛÅ͸µ
Sputtering
100~200¡Ê ÀÚ¼ºÃþ µîÀÇ º¸È£
Protection of magnetic layer and others
ÀÚ¼ºÃþ
Magnetic layer
CoÇÕ±Ý
Co alloy
½ºÆÛÅ͸µ
Sputtering
200~800¡Ê ½ÅÈ£ÀÇ ±â·Ï
Recording of signals
ÇÏÁöÃþ
Substrate layer
Cr/CrÇÕ±Þ
Cr / Cr alloy
½ºÆÛÅ͸µ
Sputtering
500~1,000¡Ê ÀÚ¼ºÃþÀÇ °áÁ¤¹èÇ⼺ÀÇ Á¦¾î
Control of crystal orientation of magnetic layer
ÇÏÁö°æÈ­Ãþ
Hardened substrate
Ni-P µµ±Ý
Plating
10~14¥ìm AIÇձݱâ¹ÝÀÇ Ç¥¸é º¯Çü¹æÁö
Prevention of surface deformation of Al alloy substrate
Al񃒀
Al substrate
AlÇÕ±Ý/±Û¶ó½º
Al alloy / Glass
0.635~0.800mm ÀÚ¼ºÃþÀÇ º¸È£
Substrate of hard disk