Patent ID: 11923275
Assignee: NXP USA, INC.
Field: Semiconductors (Electrical engineering)
Classification: CPC H | IPC H

Claim 6:
7. A method of making a lead-frame assembly, the method comprising:
providing a die attach pad and a plurality of elongate leads spaced apart therefrom, wherein each elongate lead has a first proximal end portion, a second distal end portion and a middle portion therebetween; and
coating a portion of the die attach pad and each of the plurality of elongate leads with a coating material, and leaving a coating-free portion coating-free;
wherein a part of a perimeter of the die attach pad proximal each lead is comprised in the coating-free portion;
wherein the proximal end portion of each elongate lead is comprised in the coating-free portion; and
wherein the coating material comprises a plurality of microdots which incompletely cover the coated portion of the die attach pad or the coated portion of one or more elongate lead of the plurality of elongate leads, wherein a diameter of each microdot is 50 μm or smaller and each microdot extends above a surface of the coated portion surrounding that microdot.