Leadframe, method of manufacturing a leadframe, and method of packaging an electronic component utilizing the leadframe
AssigneeMotorola, Inc.
InventorsChee Hiong Chew, Hin Kooi Chee, Saat Shukri Embong
Life of this patent
Estimating the term…
Loading patent…
AssigneeMotorola, Inc.
InventorsChee Hiong Chew, Hin Kooi Chee, Saat Shukri Embong
Estimating the term…
In order to package an electronic component, a leadframe is provided having at least one flag portion (2) and at least one lead portion (7) extending towards the flag portion (2). The lead portion (7) includes an end portion (10) of reduced thickness adjacent the flag portion (2) and a channel (9) between the end portion (10) and the rest of the lead portion. The leadframe is etched to form the channel (9) and the end portion(10), which together form a locking step. The electronic component (3) is then mounted on the flag portion (2) and electrically connected to the end of the lead portion (7). The electronic component (3), the electrical connection (5), at least the end portion (10) and the intermediate portion (9) of the lead portion (7) and at least part of the flag portion (2) are encapsulated in a plastics molding compound, which enters and fills the locking step, and is then cured.
A leadframe having at least one flag portion and at least one lead portion extending towards the flag portion, the lead portion including an elongate portion, an end portion adjacent the flag portion and an intermediate portion interconnecting the end portion and the elongate portion, the thickness of the end portion being less than the thickness of the elongate portion and the thickness of the intermediate portion being less than the thickness of the end portion.
Dependencies are inferred from the claim text.