Method for manufacturing lead frame, method for manufacturing package, and method for manufacturing light-emitting device
AssigneeNichia Corporation
InventorMayumi FUKUDA
Life of this patent
Estimating the term…
Abstract
A method for manufacturing a lead frame including: punching a metal plate disposed on a die with a punch in a direction from the metal plate toward a die side to form a punched metal, the punched metal including at least one electrode, at least one hanger lead separated from the at least one electrode, and an outer frame connected to the at least one electrode and the at least one hanger lead; and stamping at least part of a corner of an end of the at least one hanger lead, the corner being on a side corresponding to the die side, with a vertically split mold to form at least one chamfered surface.
Claims9
A method for manufacturing a lead frame, the method comprising:
- punching a metal plate disposed on a die with a punch in a direction from the metal plate toward a die side to form a punched metal, the punched metal including
- at least one electrode,
- at least one hanger lead separated from the at least one electrode, and
- an outer frame connected to the at least one electrode and the at least one hanger lead;
- and
- stamping at least part of a corner of an end of the at least one hanger lead, the corner being on a side corresponding to the die side, with a vertically split mold to form at least one chamfered surface.
A method for manufacturing a lead frame, the method comprising:
- disposing a metal plate on a die;
- punching the metal plate with a punch in a direction from the metal plate toward a die side to form at least one electrode and at least one hanger lead separated from the at least one electrode;
- and
- performing stamping to chamfer at least a part of a corner of an end of the at least one stamped hanger lead, the corner being on a side corresponding to the die side.
A method for manufacturing a lead frame, the method comprising:
- punching a metal plate from a lower direction toward an upper direction to form a punched metal, the punched metal comprising:
- at least one electrode;
- at least one hanger lead separated from the at least one electrode;
- and
- an outer frame connected to the at least one electrode and the at least one hanger lead;
- and
- stamping at least a part of a corner of an end of the at least one hanger lead, the corner being on an upper side of the punched metal, with a vertically split mold to form at least one chamfered surface.
Dependencies are inferred from the claim text.