Source: http://www.google.es/patents/US9300062
Timestamp: 2018-01-22 20:50:48
Document Index: 551489381

Matched Legal Cases: ['Application No. 201230652840', 'Application No. 201180061776', 'Application No. 201180065495', 'Application No. 201180065708', 'Application No. 201230472866', 'Application No. 201280066174', 'Application No. 12827778', 'Application No. 20110843026', 'Application No. 2011', 'Application No. 11', 'Application No. 12849022', 'Application No. 2012', 'Application No. 2012', 'Application No. 2013', 'Application No. 2012', 'Application No. 2012', 'Application No. 2012', 'Application No. 2012031548', 'Application No. 2012', 'Application No. 2012', 'Application No. 2012', 'Application No. 2012031549', 'Application No. 2013', 'Application No. 2013', 'Application No. 2014', 'Application No. 2012', 'Application No. 2012', 'Application No. 10', 'Application No. 10', 'Application No. 30', 'Application No. 30', 'Application No. 10', 'Application No. 10', 'Application No. 30', 'Application No. 30', 'Application No. 30', 'Application No. 30', 'Application No. 2012', 'Application No. 2012', 'Application No. 2012', 'Application No. 11', 'Application No. 100141887', 'Application No. 100141889', 'Application No. 101302309', 'Application No. 101307667', 'Application No. 102300058', 'Application No. 102300059', 'Application No. 102301394', 'Application No. 102301395', 'Application No. 102301581', 'Application No. 102301582', 'Application No. 102301583', 'Application No. 102301584', 'Application No. 102301585', 'Application No. 100141887', 'Application No. 100141888', 'Application No. 100141889', 'Application No. 101149281', 'Application No. 101302309', 'Application No. 102301394', 'Application No. 102301581', 'Application No. 102301582', 'Application No. 102301583', 'Application No. 102301584', 'Application No. 102301585', 'Application No. 102300058', 'Application No. 102300059', 'Application No. 102301394']

Patente US9300062 - Attachment devices and methods for light emitting devices - Google Patentes
Attachment devices and methods for use with light emitting devices are provided. In one aspect, the light emitting device can include a submount and a light emission area disposed over the submount. The device can further include at least one attachment member provided on the submount. The attachment...http://www.google.es/patents/US9300062?utm_source=gb-gplus-sharePatente US9300062 - Attachment devices and methods for light emitting devices
Número de publicación US9300062 B2
Número de solicitud US 13/282,172
También publicado como CN103329291A, US20120250310, WO2012071138A2, WO2012071138A3
Número de publicación 13282172, 282172, US 9300062 B2, US 9300062B2, US-B2-9300062, US9300062 B2, US9300062B2
Inventores Christopher P. Hussell, Kurt S. Wilcox, Peter Scott Andrews, Jesse Colin Reiherzer
Citas de patentes (251), Otras citas (176), Citada por (1), Clasificaciones (15), Eventos legales (1)
US 9300062 B2
a light emission area comprising a plurality of light emitting diode (LED) chips, disposed over the submount; and
at least one attachment member provided on the submount for engaging an electrical component and providing a solder free connection between the electrical component and the attachment member, wherein the attachment member is configured to displace a portion of the electrical component, and wherein each LED chip and the attachment member are disposed on a same surface of the submount.
6. The light emitting device of claim 1, wherein the plurality of LED chips is disposed under a filling material.
9. The light emitting device of claim 1, wherein the attachment member is adapted to physically and electrically connect the electrical component to the submount.
a light emission area comprising a plurality of light emitting diode (LED) chips disposed over the submount; and
at least one attachment member on the submount, wherein the attachment member releasably engages an electrical component thereby providing a solder free connection between the attachment member and the electrical component, wherein each LED chip and the attachment member are disposed on a same surface of the submount;
positioning the electrical component into the attachment member of the device; and
displacing a portion of the electrical component to physically and electrically connect the electrical component to the device.
a plurality of light emitting diode (LED) chips disposed on the submount; and
at least one attachment member attached to the submount, the attachment member comprising a housing for receiving and displacing a portion of an electrical connector and for maintaining the electrical connector a distance spaced apart from the submount, wherein each LED chip and the attachment member are disposed on a same surface of the submount.
29. The light emitting device of claim 28, wherein the plurality of LED chips is at least partially disposed under a filling material.
30. The light emitting device of claim 28, further comprising a retention material disposed about at least a portion of the plurality of LED chips.
31. The light emitting device of claim 30, wherein the retention material comprises a dispensed retention material on the submount.
at least one electrical trace disposed over the submount;
an array of light emitting diode (LED) chips electrically connected to the at least one electrical trace; and
at least one attachment member soldered to the submount, the attachment member comprising a housing for receiving an electrical connector and maintaining the electrical connector at least a distance above an upper surface of the submount, wherein each LED chip and the attachment member are disposed on the upper surface of the submount.
42. The light emitting device of claim 41, further comprising a retention material at least partially disposed about the array of LED chips.
43. The light emitting device of claim 42, wherein the retention material is adapted for retaining a fill material for covering the LED chips.
44. The light emitting device of claim 43, wherein the fill material at least partially comprises a phosphor or other material for affecting light color from light emitted from the LED chips.
46. The light emitting device of claim 42, wherein the retention material is disposed over at least a portion of the at least one electrical trace to which at least one of the LED chips is connected.
providing a submount comprising one or more light emitting diode (LED) chips disposed over the submount, the submount comprising an attachment member soldered thereto and in electrical communication with the one or more LEDs; and
positioning an external electrical component in the attachment member for displacing a portion of the electrical component thereby electrically connecting the one or more LED chips and the electrical component, such that the electrical component is maintained at least a distance above an upper surface of the submount, wherein each LED chip and the attachment member are disposed on the upper surface of the submount.
at least one light emitter chip disposed on the device surface; and
a wire attachment surface disposed on the same device surface as the at least one light emitter chip and in electrical communication with the at least one light emitter chip, wherein the wire attachment surface is spaced apart from the device surface and receives a wire, and wherein the wire is retained by a portion of the wire attachment surface thereby electrically coupling the wire to the device.
67. The device of claim 63, where the wire attachment surface comprises one or more blades configured to displace a cover portion of the wire.
69. A light emitting device comprising:
a wire attachment surface disposed on the same device surface as the at least one light emitter chip and in electrical communication to the at least one light emitter chip, wherein the wire attachment surface comprises a first surface adapted to receive and retain a wire for solder free bonding thereto, and a second surface opposing the first surface, wherein the second surface is electrically coupled to the device, and wherein the attachment surface provides an electrical connection between the wire and the device.
Attachment member 30 can be disposed over a portion of submount 22 during fabrication for electrically connecting to an external component. For example, attachment member 30 can be positioned over an attachment surface, similar to surface 14 (FIG. 1A) which electrically connects to and communicates with one or more LEDs of the device. (See also attachment surface 124, FIG. 13 and FIGS. 15A-E). Attachment member 30 can electrically connect and/or link external component with light emitting device 20. In one aspect, external component can comprise an electrically conductive component for supplying electrical signal, or current, to light emitting device 20. Attachment member 30 can comprise any suitable electrically conductive member and/or material for connecting to the external source. For example, attachment member 30 can comprise a solder contact for facilitating electrical connection with an external component capable of supplying electrical current to light emitting device 20. Attachment member 30 can be formed integral with submount 22 or as a separate portion attached to submount. Attachment member 30 can comprise any suitable electrically conductive material. In one aspect, attachment member 30 can comprise a metallic member including but not limited to copper, silver, stainless steel and/or other metals or alloys thereof. In other aspects as described further herein, attachment members can comprise a gas-tight (e.g., solder free) connector or separate PCB.
FIG. 2 illustrates an electrical component provided for electrically connecting to attachment member 30. Attachment member 30 can electrically communicate with submount 22 for supplying electrical current to one or more LEDs (not shown). Electrical component can comprise wire 15. Wire 15 can comprise a connecting portion 16 and an insulated portion 18. Connecting portion 16 can comprise an exposed, or bare, wire portion typically constructed of an electrically conductive material such as metal. Connecting portion 16 can be solid or stranded. As the arrows in FIG. 2 illustrate, connecting portion 16 of wire can be positioned over attachment member 30 and subsequently attached such as by soldering. Notably, connecting portion 16 will be positioned a distance away from submount 22. In one aspect, connecting portion 16 can be positioned at least over a portion of a raised portion of the attachment member utilized (See, for example, FIGS. 3A and 3B). In one aspect, connecting portion 16 can be placed at least partially within one or more grooves, or notches, of a raised portion of attachment member 30 (See, for example, FIG. 3A).
Attachment member 50 can provide one or more attachment portion located at least a first distance D1 away from a submount. In one aspect, upper surface 58 of lower body portion 56 can serve as comprise a first attachment portion located a first distance D1 away from a submount. In another aspect a second upper surface 60 of raised, or upper body portion 54 can comprise a second attachment portion located a second distance D2 away from a submount. In one aspect, second upper surface 60 is parallel upper surface 58 and spaced a distance apart from upper surface 58. First and second distances D1 and D2 can comprise any suitable distance greater than 0 mm. Second distance D2 can be greater than first distance D1. In one aspect, connecting portion 16 of wire can be positioned at least partially over upper surface 58 and attached such that it is in electrical communication with attachment member 50. Alternatively, connecting portion 16 of wire 15 can be positioned at least partially over second upper surface 60 of at least one upper body portion 54. In one aspect, connecting portion 16 of wire 15 can be positioned at least partially over at least two upper surfaces 60 of two opposing upper body portions 54 and subsequently soldered, or otherwise electrically connected to attachment member 50. In one aspect, soldering is unnecessary for electrically connecting wire 15 to attachment member 50. For example, one or both upper body portions 54 can press inwardly via a force F indicated by the arrows. Force F can squeeze one or both upper body portions 54 against connecting portion 16 of wire 15 such that the wire becomes crimped between upper body portions 54. Thus, connecting portion 16 can be fixedly held between upper portions of attachment member 50 via a solder free connection, and attachment member 50 can electrically communicate with connecting portion 16.
FIG. 4 illustrates a top view of a light emitting or LED device, generally designated 70. LED device 70 can comprise a substrate or submount 72 over which an emission area, generally designated 76, can be disposed. In one aspect, emission area 76 can be disposed substantially centrally on LED device 70. In an alternative, emission area 76 can be disposed in any other suitable location on LED device 70. Notably, LED device 70 can comprise a uniform optical source in the form of emission area which can simplify the manufacturing process for manufacturers of light products requiring a single component. LED device 70 can further comprise a retention material 74 disposed at least partially about emission area 76 where retention material 74 can be referred to as a dam. Retention material 74 can also be disposed over at least one electrostatic discharge (ESD) protection device, such as a Zener diode 114 (FIG. 12). In some aspects, retention material can be disposed over more than one, such as two, Zener diodes 114 that can be connected in series between two electrical elements (FIG. 11).
Submount 72 can comprise any suitable mounting substrate or submount, for example, a PCB, a MCPCB, an external circuit, or any other suitable submount over which lighting devices such as LEDs may mount and/or attach. In one aspect, submount 72 can have a compact dimension of, for example, 22 millimeter (mm)×22-mm square footprint. In other aspects, submount 72 can be any suitable dimension and/or shape, for example, a circular or rectangular shape.
Emission area 76 can comprise a plurality of LED chips, or LEDs 86 disposed within and/or below a filling material 87 such as illustrated in FIG. 10. Retention material 74 can be adapted for dispensing, or placing, about at least a portion of emission area 76. As illustrated in FIG. 6, retention material 74 can be dispensed after wirebonding of the one or more LEDs 86 such that retention material 74 is disposed over and at least partially covers wirebonds 88 to contain at least a portion, such as one end of each of wirebonds 88 within retention material 74. In FIG. 6, wirebonds 88 for the first and last, or outermost edge LEDs 86A for a given string, or series of LEDs 86 are disposed within retention material. In one aspect, retention material 74 can be “planed” during dispersion at room temperature for accurate volume and/or height control. After placement of retention material 74, filling material 87 (FIG. 10) can be filled to any suitable level within the space disposed between one or more inner walls of retention material 74. For example, filling material 87 (FIG. 10) can be filled to a level equal to the height of retention material 74 or to any level above or below retention material. The level of filling material 87 (FIG. 10) can be planar or curved in any suitable manner, such as concave or convex. Emission are 76 can be substantially opaque (as illustrated in FIG. 4), transparent, or semi-transparent depending upon, for example, the amount and type of phosphor or other fillers that are used in filling material 87 (FIG. 10).
Still referring to FIG. 4, LED device 70 can also comprise at least one opening or hole, generally designated 78, disposed through submount 72 for facilitating attachment of LED device 70 to an external substrate or surface. For example, one or more screws can be inserted through the at least one hole 78 for securing device 70 to another member, structure, or substrate. LED device 70 can also comprise one or more electrical attachment members 30 and/or 50 as described in FIGS. 3A and 3B. FIG. 4 illustrates at least one attachment member 30 which can comprise at least one electrical contact such as solder contacts disposed at the corner of light emitting device 70 for connecting to external components. Attachment member 30 can comprise any suitable configuration, size, shape and/or location and can comprise positive and/or negative electrode terminals through which an electrical current or signal can pass when connected to an external power source. For example, one or more electrically conductive wires (FIGS. 2, 8) can be attached and electrically connected to attachment members 30 and/or 50 when welded, soldered, or any otherwise suitably attached. Electrical current or signal can pass into LED device 70 from the external wires electrically connected to the attachment members 30 and into emission area 76 comprised of LEDs 86 (FIGS. 6, 7, 10) to facilitate light output. Attachment members 30 can electrically communicate with emission area 76 comprised of LEDs 86 (FIGS. 6, 7, and 10). Attachment members 30 can electrically communicate with first and second conductive traces 103 and 104 (see FIG. 11) and therefore LEDs 86 which may be wirebonded or otherwise electrically connected to first and second conductive traces 104 and 103.
FIG. 8A illustrates a second embodiment of a LED device, generally designated 90. LED device 90 is similar in form and function to LED device 70 but having attachment member 50 as shown and described in FIG. 3B. FIG. 8A illustrates at least one attachment member 50 disposed in a first corner of LED device 90 and a second attachment member 50 disposed at an opposite end and along an opposite edge of LED device 90. Each attachment member 50 can correspond to a positive and negative terminal of LED device 90 for passing current through the device. FIG. 8A illustrates connecting portion 16 of wire being positioned down and over attachment member 50 such that it is disposed over upper surface 58. Once connecting portion 16 is positioned, it can be subsequently welded, soldered, crimped, or otherwise attached to attachment member 50 at a distance D1 away from submount 72.
FIG. 10 further illustrates examples of first and second heights H1 and H2 of filling material 87 within LED device 70. First height H1 can comprise a height at which filling material 87 is disposed over the LEDs 86. The height may vary due to process variability, so an average height above the string of LEDs 86 can be used and controlled for optimal brightness and other characteristics (e.g., color point, uniformity, etc.). Second height H2 can comprise a height at which filling material 87 is disposed over a top surface of conductive pad 100. Second height H2 can be controlled, for example, by controlling the location of retention material 74 and whether it assumes location R1, R2 or any position therebetween. Second height H2 can also be controlled by controlling the amount of filling material 87 dispensed into the cavity defined by retention material 74. Raised portion 38 of attachment member 30 and/or upper surface 60 of attachment member 50 can comprises distances D2 which can extend to a height less than the height of the retention material 74 and/or first and second heights H1 and H2.
FIGS. 14D to 14F illustrate further embodiments of attachment member 30. In FIGS. 14D and 14E, legs 40D and 40E elevate raised portions 38D and 38E with respect to corresponding body portions 32D and 32E. Legs 40D and 40E can comprise approximately the same width as a width of corresponding body portions 32D and 32E. FIG. 14D illustrates an attachment member having a notch 42D for receiving and holding an external component such as a wire. FIG. 14E illustrates a design without a notch, and any of the embodiments of attachment members described herein can optionally comprise a notch or have no notch. Wire could simply become soldered or otherwise attached to raised portions 38E. FIG. 14F illustrates an embodiment of an attachment member comprising substantially curved surfaces. The attachment member comprises a body portion 32F which extends into more than one raised portion 38F. As illustrated by phantom lines L, raised portions can optionally comprise a notch or area for receiving an external electrical component. The attachment member illustrated by FIG. 14F comprises a substantially U-shaped attachment member. Any shape is contemplated. For illustration purposes, six different embodiments of attachment member 30 are illustrated by FIGS. 14A to 14F. However, attachment member 30 is not limited to the shapes and sizes shown. Attachment member 30 can comprise any suitable size, shape, and/or dimension of body portion and/or raised attachment portion.
FIG. 17C illustrates a second embodiment of attachment member 150, where attachment member has multiple sets of blades portions 152. That is, a first set of blade portions 152 can comprise an integral U-shaped blade portion having two sharp edges facing inwardly towards each other and configured to displace insulation of wire 15 to electrically connect with connecting portion 16 of wire. A second set of blade portions 152 can be disposed parallel to the first set, and can allow for a more robust electrical connection by piercing wire 15 in a second location to electrically connect to connecting portion 16. Thus, attachment member 150 can comprise a double contact connector within housing 154. In one aspect, housing 154 comprises a white plastic or insulating material.
Solder mask 102 can be applied over attachment surface 124 and intervening layers 190 where such layers are present. Solder mask 102 can be patterned to leave an area of attachment surface 124 and/or layer 190 exposed on a surface of submount 72 for connecting to attachment member 170. In one aspect, attachment member 170 can physically and electrically connect to submount 72 via a soldering process where solder 192 is applied between attachment surface 124 (and/or layer 190 where present) and a bottom surface of attachment member 170. As noted earlier, bottom surface of attachment member 170 can comprise an electrically conductive contact for electrically and physically connecting with submount 72 via solder attachment. Attachment member 170 can comprise a solder free connector adapted to electrically connect to wire 15 (FIG. 20) without the need for solder material and/or a soldering process. The fact that member 170 may be soldered to submount 72 does not affect the solder free connection method established between member 170 and electrical component, (e.g., wire 15, FIG. 20).
Attachment member 202 can comprise a solder free connector for releasably engaging an electrical component, such as external housing 204. That is, the connection between member 202 and external housing 204 is not established via solder and/or a soldering process. In one aspect, external housing 204 comprises one or more electrically conductive wires 210. The wires extend through housing and become crimped to form at female pins or terminals 212. The female terminals 212 can frictionally engage pins 206 of member 202 and when pins 206 are inserted into terminals 212 indicated by the arrows. The connection between member 202 and electrical component or external housing 204 can be a frictional connection and/or snap-fit wherein pins 206 releasably engage female terminals 212. Pins 206 can be released from female terminals 212 via pulling apart member 202 from external housing 204, or otherwise ejecting pins. Electrical signal can pass from wires 210 into pins 206 and then into submount 72 of device 200 via attachment surfaces 208. For illustration purposes, two pins 206 and terminals 212 are shown, however, more than two pins 206 and terminals 212 are contemplated. Upon connection of attachment member 202 to external housing 204, two gas-tight connections are established. A first gas-tight connection comprises the wires 210 crimped to form the female terminal 212 and a second gas-tight connection comprises the female terminals 212 connecting to pins 206.
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US20150338081 * 10 Ene 2014 26 Nov 2015 Molex Incorporated Led assembly
Clasificación internacional H01R12/51, H01L33/62, H01L25/075, H01R12/57
Clasificación cooperativa H01L2924/00014, H01L2224/45139, H01L25/0753, H01R12/57, H01L33/62, Y10T29/49002, H01L2924/09701, H01L2224/48137, H01R12/515, H01L2224/48091, H01L2924/00