Patent ID: 7317181

Claim:
A method for producing a light-emitting unit of a surface mount type including: a lead frame forming step for opening a tape-like conductive plate into a predetermined profile to form a lead frame involving a first lead and a second lead; a light-emitting device mounting step for bonding a light-emitting device to a predetermined position in the lead frame formed in said lead frame forming step to connect electrically a first electrode of said light-emitting device with said first lead as well a to connect electrically a second electrode of said light-emitting device with said second lead; a sealing step for sealing said light-emitting device, wherein a connecting section of said first electrode of the light-emitting device and said first lead, and a connecting section of said second electrode of the light-emitting device and said second lead are sealed with a clear insulator after conducting said light-emitting device mounting step, and wherein a surface of said first lead is exposed to a surface of said insulator, said surface of said first lead exposed to said insulator is opposite a surface of the first lead onto which said light emitting device is bound; and a fragmenting step for cutting off portions of said first lead and said second lead, which have been protruded from said insulator, to fragment them; comprising said lad frame forming step involving a step for opening and conductive plan to define said first lead and said second lead, and a step for molding an extreme end of said first lead to form a cup-shaped reflecting section having a flat bottom; said light-emitting device mounting step involving a step for bonding said light-emitting device to the bottom inside of said reflecting section of said first lead; wherein: the step for forming said first lead and said second lead includes the step of forming the first lead and the second lead to have protrusions in a region to be sealed with said insulator, and said lead frame forming step includes a step for folding said protrusions in a direction towards the surface on to which said light-emitting device is to be bonded and forming the first lead and second lead protrusions so the protrusions are separate from said reflecting section.