substrate singulation

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• Quad-flat no-leads package — 28 pin QFN, upside down to show contacts and thermal/ground pad Flat no leads packages such as QFN (quad flat no leads) and DFN (dual flat no leads) physically and electrically connect integrated circuits to printed circuit boards. Flat no leads …   Wikipedia

• QFN — A QFN or Quad Flat No leads or a MLF package is an integrated circuit package which falls under Surface mount technology packages used on printed circuit boards. This kind of package is similar to the Quad Flat Package, but the leads do not… …   Wikipedia