Abstract: A method for tuning a threshold voltage of a transistor is disclosed. A channel layer is formed over a substrate. An interfacial layer is formed over and surrounds the channel layer. A gate dielectric layer is formed over and surrounds the interfacial layer. A dipole layer is formed over and wraps around the gate dielectric layer by performing a cyclic deposition etch process, and the dipole layer includes dipole metal elements and has a substantially uniform thickness. A thermal drive-in process is performed to drive the dipole metal elements in the dipole layer into the gate dielectric layer to form an interfacial dipole surface, and then the dipole layer is removed.

Abstract: An electronic device includes a front panel, a back cover, a stand, and at least one hinge module. The stand is disposed on a surface of the back cover opposite to the front panel and is rotatable relative to the surface. The hinge module disposed between the front panel and the back cover includes a fixing element, a sliding element, a pivot, and a spring strip. The fixing element has a hole, and the fixing element is fixed on the back cover, such that an accommodating space is formed between the fixing element and the back cover. The sliding element having a hook portion is slidably disposed in the accommodating space. The pivot is slidably disposed in the accommodating space. The sliding element is connected to the stand by the pivot. The spring strip is disposed in the accommodating space. The spring strip is deformably fixed on the back cover.

Abstract: An electronic device includes a front panel, a back cover, a stand, and at least one hinge module. The stand is disposed on a surface of the back cover opposite to the front panel and is rotatable relative to the surface. The hinge module disposed between the front panel and the back cover includes a fixing element, a sliding element, a pivot, and a spring strip. The fixing element has a hole, and the fixing element is fixed on the back cover, such that an accommodating space is formed between the fixing element and the back cover. The sliding element having a hook portion is slidably disposed in the accommodating space. The pivot is slidably disposed in the accommodating space. The sliding element is connected to the stand by the pivot. The spring strip is disposed in the accommodating space. The spring strip is deformably fixed on the back cover.

Abstract: A display module including a display panel, at least one bracket, a protective plate, a plurality of assembling elements and a back cover is provided. The display panel has a display surface and a back surface opposite to the display surface. The bracket is fixed to the display panel. The protective plate faces the display surface. The assembling elements are fixed on the protective plate, wherein each of the assembling elements has a positioning protrusion and an engaging slot. And the bracket is positioned on the assembling elements through the positioning protrusions. The back cover faces the back surface, wherein the back cover is engaged to the assembling elements through the engaging slots.

Abstract: A display module including a display panel, at least one bracket, a protective plate, a plurality of assembling elements and a back cover is provided. The display panel has a display surface and a back surface opposite to the display surface. The bracket is fixed to the display panel. The protective plate faces the display surface. The assembling elements are fixed on the protective plate, wherein each of the assembling elements has a positioning protrusion and an engaging slot. And the bracket is positioned on the assembling elements through the positioning protrusions. The back cover faces the back surface, wherein the back cover is engaged to the assembling elements through the engaging slots.

Abstract: An expansion unit detachably assembled to an electronic device is provided. The electronic device has a device connector on one side thereof. The expansion unit for the electronic device includes a base, a pivoting mechanism, and an expansion unit connector. The pivoting mechanism is located on one side of the base, and includes a shaft and a bearing fitting therewith. The expansion unit connector is disposed in the shaft and rotated along with the shaft in the bearing, and is detachably and electrically connected to the device connector. When the expansion unit connector is connected to the device connector, the position of the electronic device relative to the base may be adjusted by the pivoting mechanism.

Abstract: An electronic device assembly includes an electronic device and a mini connector. The electronic device includes a first housing. The first housing includes an assembling opening, a first positioning portion located adjacent to the assembling opening, and a first connecting terminal set located in the assembling opening. The mini connector includes a second housing, a connecting wire, and a second connecting terminal set. The second housing includes a second positioning portion having a shape complementary to that of the first positioning portion. The connecting wire passing through the second housing is electrically connected to the second connecting terminal set located in the second housing. The second positioning portion is located at one side of the second connecting terminal set. With the complementary relationship between the shapes of the second positioning portion and the first positioning portion, the mini connector is configured to be connected only to the electronic device.

Abstract: An electronic device having a device case, a first electrode, and a modular accessory is provided. The first electrode is located in the device case. The modular accessory is removably assembled to the device case, and includes an accessory case, a second electrode, and a fan.

Abstract: An expansion unit detachably assembled to an electronic device is provided. The electronic device has a device connector on one side thereof. The expansion unit for the electronic device includes a base, a pivoting mechanism, and an expansion unit connector. The pivoting mechanism is located on one side of the base, and includes a shaft and a bearing fitting therewith. The expansion unit connector is disposed in the shaft and rotated along with the shaft in the bearing, and is detachably and electrically connected to the device connector. When the expansion unit connector is connected to the device connector, the position of the electronic device relative to the base may be adjusted by the pivoting mechanism.

Abstract: An expansion module and a personal digital assistant equipped therewith. The personal digital assistant comprises a base unit and an expansion module. The base unit defines a guide slot and a fixing hole. The expansion module, disposed on the base unit in a detachable manner, includes an engaging member located in the guide slot and a positioning assembly combined with the fixing hole.

Abstract: A personal digital assistant (PDA). The personal digital assistant (PDA) comprises a main body and a PDA stylus. The PDA stylus has a first joining portion at the end thereof. The main body has a directional control portion disposed thereon with a spherical surface rotatable around a spherical center. The directional control portion has a second joining portion at the center of the spherical surface. The PDA stylus becomes a joystick by joining the first joining portion to the second joining portion.

Abstract: A personal digital assistant (PDA). The personal digital assistant (PDA) includes a main body and a PDA stylus. The main body has a channel and a contact switch disposed therein. In particular, the PDA is turned on when the PDA stylus is inserted into the channel and contacts the contact switch, and the PDA is turned off when the PDA stylus is withdrawn from the channel and separates from the contact switch.

Abstract: An expansion module and a personal digital assistant equipped therewith. The personal digital assistant comprises a base unit and an expansion module. The base unit defines a guide slot and a fixing hole. The expansion module, disposed on the base unit in a detachable manner, includes an engaging member located in the guide slot and a positioning assembly combined with the fixing hole.