<?xml version="1.0" encoding='utf-8'?>
<!DOCTYPE wml PUBLIC "-//WAPFORUM//DTD WML 1.1//EN" "http://www.wapforum.org/DTD/wml_1.1.xml">
<wml>
<card id="card1" title="Disk read-and-write head - Page 6 - Wikipedia">
<p>
<a accesskey="1" href="page.php?w=Disk_read-and-write_head&amp;p=5">1.Previous</a><br />
<a accesskey="3" href="page.php?w=Disk_read-and-write_head&amp;p=7">3.Next</a>
</p>
<p>heads with a small piece of <a href="page.php?w=metal">metal</a> in the head gap that concentrates the field.  This allows smaller features to be read and written.  MIG heads were replaced by thin-film heads.</p>

<p><big>Thin-film heads</big></p>
<p>First introduced in 1979 on the <a href="page.php?w=IBM_3370">IBM 3370</a> disk drive, <a href="page.php?w=thin_film">thin-film technology</a> uses photolithographic techniques similar to those used on semiconductor devices to fabricate hard drive heads.  At the time, these heads had smaller size and greater</p><p>
<a accesskey="1" href="page.php?w=Disk_read-and-write_head&amp;p=5">1.Previous</a><br />
<a accesskey="3" href="page.php?w=Disk_read-and-write_head&amp;p=7">3.Next</a>
</p>

<do type="prev" label="Search">
        <go href="search.wml"/>
</do>

</card>
</wml>
