US 12,641,937 B2Granted

Light-emitting chip holder with multiple pads pairs, and light-emitting device

AssigneeBridgelux Optoelectronics (Xiamen) Co., Ltd.

InventorsJingqiong Zhang, Yiqun Li

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Abstract

A light-emitting chip holder includes a conductive base and a casing. The conductive base includes pad pairs spaced along a first direction, and each pad pair includes a connection pad and a bonding pad spaced along a second direction different from the first direction. The connection pad includes a main portion and an extension portion. The bonding pad includes first and second bonding portions. The casing forms concave groups on a side of the conductive base. The concave group includes first and second concaves adjacent to each other in the second direction. The pad pairs includes adjacently arranged first and second pad pairs. In each the concave group, the first pad pair and the second pad pair are arranged in a centrosymmetric manner. A flexible series-connection and/or parallel-connection design for light-emitting devices can be conveniently realized.

Claims20

Dependent claims

A light-emitting chip holder, comprising:

a conductive base, wherein the conductive base comprises a plurality of pad pairs spaced along a first direction, each pad pair of the plurality of pad pairs comprises a connection pad and a bonding pad spaced along a second direction, the second direction is different from the first direction, the connection pad comprises a main portion, an extension portion and a first protruding portion, and the bonding pad comprises a first bonding portion, a second bonding portion and a second protruding portion;
and
a casing, disposed on the conductive base and forming at least one concave group, wherein the at least one concave group each comprises a first concave and a second concave adjacent to each other in the second direction;
wherein the plurality of pad pairs comprises a first pad pair and a second pad pair adjacent to each other;
for the first pad pair, the main portion is located in the first concave, the extension portion is connected to the main portion and extends into the second concave along the second direction, the first bonding portion is located in the second concave and adjacent to the extension portion in the second direction, and the second bonding portion connected to a side of the first bonding portion facing toward the second pad pair;
and in the concave group, the first pad pair and the second pad pair are arranged in a centrosymmetric manner;
wherein for the first pad pair, the first protruding portion is connected to the main portion, the first protruding portion extends facing away from the extension portion in the second direction and exceeding a circumferential edge of the casing and thereby is exposed out of the casing;
wherein for the first pad pair, the second protruding portion is connected to another side of the first bonding portion facing away from the second pad pair, the second protruding portion extends in the second direction exceeding the circumferential edge of the casing and thereby is exposed out of the casing.

5 more elements

A light-emitting chip holder, comprising:

a conductive base, wherein the conductive base comprises a plurality of pad pairs arranged at intervals along a first direction, and each pad pair of the plurality of pad pairs comprises a connection pad and a bonding pad arranged at an interval along a second direction different from the first direction;
and
a casing, disposed on the conductive base and forming a plurality of concave groups on a side of the conductive base, wherein the plurality of concave groups is spaced in the first direction, and each of the plurality of concave groups comprises a first concave and a second concave adjacent to each other in the second direction;
wherein the plurality of pad pairs comprises a first pad pair and a second pad pair adjacent to each other, and the first pad pair and the second pad pair together serve as one set of pad pairs;
wherein the one set of pad pairs has two the connection pads and two the bonding pads, the two connection pads and the two bonding pads are separated from one another and are one-piece structures respectively, the two bonding pads are configured to bear light-emitting chips respectively, one of the two connection pads is exposed in both the first concave and the second concave, the other one of the two connection pads is exposed in both the first concave and the second concave, and each of the two bonding pads is exposed in one of the first concave and the second concave but not exposed in the other one of the first concave and the second concave;
wherein each of the two connection pads extends in the second direction exceeding a circumferential edge of the casing and intersecting with the circumferential edge of the casing, and thereby is partially exposed out of the casing;
wherein each of the two bonding pads extends in the second direction exceeding the circumferential edge of the casing and intersecting with the circumferential edge of the casing, and thereby is partially exposed out of the casing.

4 more elements

Dependencies are inferred from the claim text.