摘要:
The present invention discloses a light-emitting diode with enhanced brightness and a method for fabricating the same. The light-emitting diode comprises: an epitaxial LED structure having at least one lighting-emitting active layer with a plurality of spacers inside the lighting-emitting active layer; at least one conductive contact, formed on the bottom surface where no spacer is formed inside the lighting-emitting active layer; a transparent material layer formed in the spacers; an adhesion layer formed between the transparent material layer and a permanent substrate; a bottom electrode formed on the bottom surface of the permanent substrate; and an opposed electrode formed on the top surface of the epitaxial LED structure.
摘要:
A light-emitting diode with enhanced brightness and a method for fabricating the diode is provided. The light-emitting diode includes an epitaxial LED structure having at least one lighting-emitting active layer with a plurality of windows formed in a highly doped layer. At least one conductive contact is formed on the bottom surface of the highly doped layer. A transparent material layer is formed in the windows. An adhesion layer is formed between the transparent material layer and a permanent substrate. A bottom electrode is formed on the bottom surface of the permanent substrate and an opposed electrode is formed on the top surface of the epitaxial LED structure.
摘要:
A forming method and a structure of a high efficiency electro-optics device are disclosed. In the present invention, the cell-fixing surface between the die carrier and the electro-optics cell is decreased to increase the light emitting and absorbing regions of the electro-optics device. Thus, the operating efficiency and the sensitivity of the electro-optics device is increased substantially. Especially, the present invention has the advantage of fully showing the efficacy of device using the transparent substrate. Furthermore, when the electro-optics cell is fixing on the cell-fixing surface by utilizing the eutectic or metal-melting bonding method, a result of self-alignment can be achieved. Thus, the accuracy of the packaging device is increased substantially, thereby reducing the loss caused by the failure of poor cell-fixing while in mass production and meanwhile increasing the accuracy of fixing cell. Therefore, the present technology is quite suitable for use in the packaging of high precision.
摘要:
A method and a structure for packaging an electro-optics device are disclosed. A transparent material is added between the die carrier and the electro-optics device, so that the light emitted from the backside of the electro-optics device can be extracted. Furthermore, a light reflective layer is formed on the die carrier, and a pattern of the light reflective layer is designed to prevent the light from being reflected to the active layer, the reflecting decreasing light-emitting efficiency again.
摘要:
A method for packaging an electro-optics device is disclosed. A transparent material is added between the die carrier and the electro-optics device, so that the light emitted from the backside of the electro-optics device can be extracted. Furthermore, a light reflective layer is formed on the die carrier, and a pattern of the light reflective layer is designed to prevent the light from being reflected to the active layer, the reflecting decreasing light-emitting efficiency again.
摘要:
The present invention discloses a light-emitting diode and a method for manufacturing such a light-emitting diode with a direct band-gap III-V compound semiconductor material on a GaAs substrate. It is implemented by forming a first conductive electrode on the top edge of the epitaxial LED layer and a second conductive electrode opposite the first conductive electrode on the edge of a transparent substrate. Further, after the first conductive electrode and second conductive electrode are connected by chip bonding skill, it is selectively to remove the GaAs substrate and plate a transparent electrode on the top portion of the epitaxial LED layer. Therefore, when casting from P-N junction of the light-emitting diode, the light will go through with directions of the top portion of epitaxial layer and transparent substrate.
摘要:
A current-to-voltage converter with highpass filter function constructed according to the present invention contains two operational amplifiers OP1 and OP2, two resistors R.sub.1 and R.sub.2, and a capacitor C.sub.1. The noninverting (+) terminal of the operational amplifier OP1 is grounded. The inverting (-) terminal of the operational amplifier OP1 is used to receive the output of the current-type sensing device and connected to the output terminal of the operational amplifier OP2 via the resistor R.sub.2. The output terminal of the operational amplifier OP1 is connected to the noninverting terminal of the operational amplifier OP2. The output of the operational amplifier OP2 is fed back to the inverting terminal of the operational amplifier OP2 via the capacitor C.sub.1, and the inverting terminal of the operational amplifier OP2 is connected to one terminal of the resistor R.sub.1 of which another terminal is grounded.
摘要:
A second-order differential highpass filter constructed according to the present invention includes a difference amplifier and a feedback processing circuit. The difference amplifier includes an operational amplifier OP.sub.1, and four resistors R.sub.3, R.sub.4, R.sub.5 and R.sub.6, wherein R.sub.4 /R.sub.3 =R.sub.6 /R.sub.5. An input voltage V.sub.1 is fed to the inverting terminal (-) of the operational amplifier OP.sub.1 via the resistor R.sub.5. Another input voltage V.sub.2 is fed to the noninverting terminal (+) of the operational amplifier OP.sub.1 via the resistor R.sub.3. The output of the operational amplifier OP.sub.1 is fed back to the inverting terminal (-) of the operational amplifier OP.sub.1 via the resistor R.sub.6. The feedback processing circuit includes an operational amplifier OP.sub.2, two resistors R.sub.1 and R.sub.2, and two serial capacitors C.sub.2 and C.sub.1. The output of the operational amplifier OP.sub.2 is fed back to the inverting terminal (-) of the operational amplifier OP.sub.2 via the two serial capacitors C.sub.1 and C.sub.2, and is connected to the noninverting terminal of the operational amplifier OP.sub.1 via the resistor R.sub.4, and the noninverting (+) terminal of the operational amplifier OP.sub.2 is grounded. The inverting terminal of the operational amplifier OP.sub.2 is connected to the output terminal of the operational amplifier OP.sub.1 via the resistor R.sub.1. The two serial capacitors C.sub.1 and C.sub.2 are connected therebetween to one terminal of the resistor R.sub.2 of which another terminal is grounded.
摘要:
A second-order highpass difference filter constructed according to the present invention includes a difference amplifier and a feedback processing circuit. The difference amplifier includes an operational amplifier OP.sub.1, and four resistors R.sub.1, R.sub.2, R.sub.3 and R.sub.4. The feedback processing circuit is composed of two operational amplifiers OP.sub.2 and OP.sub.3, resistors R.sub.5 and R.sub.6, and two serial capacitors C.sub.1 and C.sub.2. The inverting and noninverting terminals of the operational amplifier OP.sub.3 are connected to the output of the difference amplifier and of the operational amplifier OP.sub.2, respectively. The output of the operational amplifier OP.sub.2 is also fed back to the inverting terminal of the operational amplifier OP.sub.2 via the resistor R.sub.5, and the noninverting terminal of the operational amplifier OP.sub.2 is grounded. The output terminal of the operational amplifier OP.sub.3 is connected to the inverting terminal of the operational amplifier OP.sub.2 via the two serial capacitors C.sub.1 and C.sub.2 and to the noninverting terminal of the operational amplifier OP.sub.1 via the resistor R.sub.4. The two serial capacitors C.sub.1 and C.sub.2 are connected therebetween to one terminal of the resistor R.sub.6 of which another terminal is grounded.
摘要:
A light emitting diode chip includes a permanent substrate having a holding space formed on the permanent substrate; an insulating layer and a metal layer sequentially formed on the permanent substrate and the holding spacer; a die having a eutectic layer and a light-emitting region and bonded to the metal layer within the holding space via the eutectic layer coupling to the metal layer; a filler structure filled between the holding space and the die; and an electrode formed on the die and in contact with the light-emitting region.