Thin film write having reduced resistance conductor coil partially recessed within middle coat insulation

A thin film write head comprising:

• a lower pole including a write gap end and a back end, the lower pole being substantially planar between the two ends;
• a pole pedestal disposed over the write gap end of the lower pole and including a first substantially planar upper surface defining a plane;
• a back gap disposed over the back end of the lower pole and including a second substantially planar upper surface that is coplanar with the plane;
• an insulation layer disposed over the lower pole between the pole pedestal and back gap and including a third substantially planar upper surface that is substantially coplanar with the plane;
• an upper pole disposed over the lower pole and joined to the back gap;
• a conductor coil between the lower and upper poles and at least partially disposed between the plane and the lower pole, and
• a write gap layer disposed above the pole pedestal and above the insulation layer and between the upper pole and the conductor coil, and further disposed between adjacent turns thereof, and at least partially contacting the first and third upper surfaces and including an end proximate to the back gap.

A thin film write head comprising:

• a lower pole including a write gap end and a back end, the lower pole being substantially planar between the two ends;
• a pole pedestal disposed over the write gap end of the lower pole and including a first substantially planar upper surface defining a plane;
• a back gap disposed over the back end of the lower pole and including a second substantially planar upper surface that is coplanar with the plane;
• an insulation layer disposed over the lower pole between the pole pedestal and back gap and including a third substantially planar upper surface that is substantially coplanar with the plane;
• an upper pole disposed over the lower pole and joined to the back gap;
• a conductor coil between the lower and upper poles and at least partially disposed between the plane and the lower pole, and
• a write gap layer disposed above the pole pedestal and above the insulation layer and between the lower pole and the conductor coil, and further disposed between adjacent turns thereof, and at least partially contacting the first and third upper surfaces and including an end proximate to the back gap.

A data storage and retrieval apparatus comprising:

• a magnetic recording media;
• a merged head assembly positioned adjacent the magnetic recording media and including
• a read sensor, and
• a write head having
• a lower pole having a write gap end and a back end, the lower pole being substantially planar between the two ends,
• a pole pedestal disposed over the write gap end of the lower pole and having a first substantially planar upper surface defining a plane,
• a back gap disposed over the back end of the lower pole and having a second substantially planar upper surface that is coplanar with the plane,
• an insulation layer disposed over the lower pole between the pole pedestal and back gap and having a third substantially planar upper surface that is substantially coplanar with the plane,
• an upper pole disposed over the lower pole and joined to the back gap,
• a write gap layer disposed above the pole pedestal and above the insulation layer and at least partially contacting the first and third upper surfaces and having an end proximate to the back gap, and
• a conductor coil between the lower and upper poles and at least partially disposed between the plane and the lower pole;
• and
• a motor coupled to the media so as to move the media relative with respect to the head assembly.

A data storage and retrieval apparatus comprising:

• a magnetic recording media;
• a merged head assembly positioned adjacent the magnetic recording media and including
• a read sensor, and
• a write head having
• a lower pole having a write gap end and a back end, the lower pole being substantially planar between the two ends,
• a pole pedestal disposed over the write gap end of the lower pole and having a first substantially planar upper surface defining a plane,
• a back gap disposed over the back end of the lower pole and having a second substantially planar upper surface that is coplanar with the plane,
• an insulation layer disposed over the lower pole between the pole pedestal and back gap and having a third substantially planar upper surface that is substantially coplanar with the plane,
• an upper pole disposed over the lower pole and joined to the back gap,
• a conductor coil between the lower and upper poles and at least partially disposed between the plane and the lower pole;
• and
• a write gap layer disposed above the pole pedestal and above the insulation layer and between the upper pole and the conductor coil, and further disposed between adjacent turns thereof, and at least partially contacting the first and third upper surfaces and including an end proximate to the back gap;
• and
• a motor coupled to the media so as to move the media relative with respect to the head assembly.

A data storage and retrieval apparatus comprising:

• a magnetic recording media;
• a merged head assembly positioned adjacent the magnetic recording media and including
• a read sensor, and
• a write head having
• a lower pole having a write gap end and a back end, the lower pole being substantially planar between the two ends,
• a pole pedestal disposed over the write gap end of the lower pole and having a first substantially planar upper surface defining a plane,
• a back gap disposed over the back end of the lower pole and having a second substantially planar upper surface that is coplanar with the plane,
• an insulation layer disposed over the lower pole between the pole pedestal and back gap and having a third substantially planar upper surface that is substantially coplanar with the plane,
• an upper pole disposed over the lower pole and joined to the back gap,
• a conductor coil between the lower and upper poles and at least partially disposed between the plane and the lower pole;
• and
• a write gap layer disposed above the pole pedestal and above the insulation layer and between the lower pole and the conductor coil, and further disposed between adjacent turns thereof, and at least partially contacting the first and third upper surfaces and including an end proximate to the back gap;
• and
• a motor coupled to the media so as to move the media relative with respect to the head assembly.