Elcoteq Focuses on Design to Tap Hefty Demand  SALO, Finland (Reuters) - Elcoteq &lt;A HREF="http://www.reuters.co.uk/financeQuoteLookup.jhtml?ticker=ELQAV.HE qtype=sym infotype=info qcat=news"&gt;ELQAV.HE&lt;/A&gt; is targeting  growth by strengthening its focus on design services to tap  surging demand in the mobile handset market, Europe's top  electronics manufacturing services firm said.