Electronic package and method

• US 5,786,745 A
• Filed: 02/06/1996
• Issued: 07/28/1998
• Est. Priority Date: 02/06/1996
• Status: Expired due to Term

• Current Assignee: Semiconductor Components Industries LLC (ON Semiconductor Corporation)
• Original Assignee: Motorola, Inc. (Motorola Solutions, Inc.)
• Inventors: Elliott, Alexander J., Mays, Lonne L.
• Primary Examiner(s): Gellner, Michael L.
• Assistant Examiner(s): EASTHOM, KARL D
• Application Number:
  US08/597,307
• Time in Patent Office: 903 Days
• Field of Search: 338/53, 338/54, 338/57, 338/59, 338/318, 338/275, 338/273, 338/276, 338/51, 338/60, 338/61, 361/690, 361/704, 361/715, 361/717-718, 361/722, 361/728, 361/730, 361/760, 361/763-764, 361/773, 257/706, 257/712, 257/713, 174/16.3
• US Class Current: 338/51
• CPC Class Codes: H01C 1/084 using self-cooling, e.g. fins, heat sinks
• CPC Class Codes: H05K 2201/10568 Integral adaptations of a component or an auxiliary PCB for mounting, e.g. integral spacer element
• CPC Class Codes: H05K 2201/10583 Cylindrically shaped component; Fixing means therefore
• CPC Class Codes: H05K 2201/10651 Component having two leads, e.g. resistor, capacitor
• CPC Class Codes: H05K 3/303 Surface mounted components, e.g. affixing before soldering, aligning means, spacing means H05K3/32 takes precedence
• CPC Class Codes: Y02P 70/50 Manufacturing or production processes characterised by the final manufactured product

Abstract

A package (10) has outermost surfaces (12, 13, 14, 16) that form a polygon shape. The body (11) of the package (10) has axial symmetry about an axis (21). A lead (22) exits the package along the axis (21).

Claims

1. An electronic package comprising:

a one piece body having an axis and sides with fins and with flat surfaces between and connecting the fins wherein the fins and flat surfaces of each side have an outermost surface in a plane so that the planes of the outermost surfaces of all sides intersect to form a shape of a polygon, the polygon and each fin having axial symmetry about the axis so that each said plane is substantially parallel to the axis; and

a lead having a diameter that is smaller than a thickness of the one piece body exiting the body along the axis and wherein the lead is bent to have a first portion substantially perpendicular to at least one of said planes of the outermost surfaces and a second portion substantially perpendicular to the first portion of the lead and also has an outer surface that is substantially coplanar to the one plane.

2. The package of claim 1 wherein the outermost surfaces are formed by a plurality of fins extending substantially perpendicular to the axis.

3. The package of claim 1 wherein a portion of the flat surface is suitable for use by a vacuum pick-up device.

4. The package of claim 1 wherein the polygon is a square.

5. The package of claim 1 wherein the polygon is a triangle.

6. The package of claim 1 wherein the polygon is a rectangle.

7. The package of claim 1 wherein the polygon is a pentagon.