20150325570 | HIGH VOLTAGE SEMICONDUCTOR DEVICE AND METHOD FOR MANUFACTURING THE SAME - A high voltage semiconductor device is provided, comprising a high voltage metal-oxide-semiconductor transistor (HVMOS), and a normally-on low voltage metal-oxide-semiconductor transistor (LVMOS) electrically connected to the HVMOS. The HVMOS has a first collector and a first emitter, and the LVMOS has a second collector and a second emitter, wherein the second collector of the LVMOS is electrically connected to the first emitter of the HVMOS. The LVMOS electrically connected to the HVMOS provides an electro-static discharge bipolar transistor (ESD BJT), such as a NPN-type ESD BJT. | 11-12-2015 |