US2016172563A1PendingUtilityA1

Led module

Assignee: ROHM CO LTDPriority: Apr 30, 2010Filed: Feb 24, 2016Published: Jun 16, 2016
Est. expiryApr 30, 2030(~3.8 yrs left)· nominal 20-yr term from priority
H10W 72/5522H10W 72/5363H10W 72/884H10W 72/536H10H 20/8585H10H 20/857H10H 20/856H10H 20/8581H01L 33/62H01L 33/641H01L 33/60
50
PatentIndex Score
0
Cited by
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0
Claims

Abstract

A lead 1 includes a die-bonding portion 11 with an opening 11 a penetrating in a thickness direction. Another lead 2 is spaced from the lead 1 . An LED unit 3 includes an LED chip 30 with a electrode terminal 31 connected to the lead 1 and another electrode terminal 32 connected to the lead 2 . The LED unit 3 , mounted on a surface of the die-bonding portion 11 on a first side in z direction, overlaps the opening 11 a . A wire 52 connects the lead 2 and the electrode terminal 32 . A support member 4 supporting the leads 1 - 2 is held in contact with another surface of the die-bonding portion 11 on a second side in z direction. These arrangements ensure efficient heat dissipation from the LED chip 30 and efficient use of light emitted from the LED chip 3.

Claims

exact text as granted — not AI-modified
1 - 8 . (canceled) 
     
     
         9 . An LED module comprising:
 a support member having a first edge and a second edge that extend in a first direction and a second direction, respectively, in plan view, the second direction being perpendicular to the first direction;   a first lead supported by the support member;   a first LED chip disposed on and electrically connected to the first lead;   a second lead supported by the support member and spaced apart from the first lead in the first direction; and   a second LED chip disposed on and electrically connected to the second lead;   wherein the first lead includes: a first metal portion on which the first LED chip is mounted; and a first protruding portion connected to the first metal portion and protruding from the first metal portion toward the second lead in the first direction,   the second lead includes: a second metal portion facing the first protruding portion; and a second protruding portion connected to the second metal portion and on which the second LED chip is mounted, the second protruding portion facing the first metal portion and protruding, from the second metal portion toward the first lead in the first direction, and   the first protruding portion and the second protruding portion are spaced apart from each other and overlap with each other as viewed in the second direction.   
     
     
         10 . The LED module according to  claim 9 , further comprising a first wire having, a first end and a second end, wherein the first end of the first wire is attached to the second LED chip, the second end of the first wire is attached to the second lead, and the first wire extends from the second LED chip to be further away from the first LED chip in the first direction. 
     
     
         11 . The LED module according to  claim 9 , wherein the first LED chip and the second LED chip have respective portions that do not overlap with each other as viewed in the first direction. 
     
     
         12 . The LED module according  claim 9 , wherein at least a part of the second LED chip faces the first metal portion in the first direction. 
     
     
         13 . The LED module according to  claim 9 , wherein the first metal portion and the second protruding portion have respective edges that are parallel to each other. 
     
     
         14 . The LED module according to  claim 9 , wherein the second metal portion and the first protruding portion have respective edges that are parallel to each other. 
     
     
         15 . The LED module according to  claim 9 , further comprising a frame member surrounding the first LED chip and the second LED chip. 
     
     
         16 . The LED module according to  claim 15 , further comprising a resin filled in a space defined by the frame member, wherein the resin covers the first LED chip and the second LED chip while allowing passage of light emitted from each of the first LED chip and the second LED chip. 
     
     
         17 . The LED module according to  claim 10 , further comprising a second wire having a first end and a second end, wherein the first end of the second wire is attached to the second LED chip. 
     
     
         18 . The LED module according to  claim 17 , wherein the first end of the first wire and the first end of the second wire are disposed at respective positions that are different in distance from the first LED chip in plan view. 
     
     
         19 . The LED module according to  claim 18 , wherein the second LED chip has a shape of an elongated rectangle in plan view, and the first end of the first wire and the first end of the second wire are spaced apart from each other in a longitudinal direction of the second LED chip. 
     
     
         20 . The LED module according to  claim 15 , wherein the second protruding portion of the second lead has an extension that extends at least to the frame member in plan view. 
     
     
         21 . The LED module according to  claim 16 , wherein the space defined by the frame member has a rectangular shape elongated in the first direction in plan view. 
     
     
         22 . The LED module according to  claim 16 , wherein the frame member has an inclined surface facing the space, and the resin is in contact with the inclined surface. 
     
     
         23 . The LED module according to  claim 17 , further comprising a third wire having a first end and a second end, wherein the first end of the third wire is attached to the second metal portion of the second lead, and the second end of the third wire is electrically connected to another wire other than the second lead. 
     
     
         24 . The LED module according to  claim 23 , further comprising a fourth wire having a first end and a second end, wherein the first end of the fourth wire is attached to the first LED chip, and the fourth wire extends in a direction that is non-parallel to the first direction in plan view. 
     
     
         25 . The LED module according to  claim 24 , wherein the second end of the fourth wire is spaced apart from the second LED chip. 
     
     
         26 . The LED module according to  claim 24 , wherein a distance in plan between the first and the second ends of the fourth wire is greater than a distance between the first protruding portion and the second protruding portion in the second direction. 
     
     
         27 . The LED module according to  claim 15 , wherein the first lead includes an extension extending away from the first protruding portion in the first direction, and the extension extends at least to the frame member in plan view. 
     
     
         28 . The LED module according to  claim 27 , wherein the first metal portion of the first lead is greater in size measured in the second direction than the extension of the first lead.

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