Abstract: A method includes performing a plasma activation on a surface of a first package component, removing oxide regions from surfaces of metal pads of the first package component, and performing a pre-bonding to bond the first package component to a second package component.

Abstract: A circuit, including: a photodetector including a first readout terminal and a second readout terminal different than the first readout terminal; a first readout circuit coupled with the first readout terminal and configured to output a first readout voltage; a second readout circuit coupled with the second readout terminal and configured to output a second readout voltage; and a common-mode analog-to-digital converter (ADC) including: a first input terminal coupled with a first voltage source; a second input terminal coupled with a common-mode generator, the common-mode generator configured to receive the first readout voltage and the second readout voltage, and to generate a common-mode voltage between the first and second readout voltages; and a first output terminal configured to output a first output signal corresponding to a magnitude of a current generated by the photodetector.

Abstract: The invention provides a new waist carrying case, which can be fastened to a belt or a backpack to provide portability and convenience. The waist carrying case structure is mainly coupled first shell and second shell, between which concave space is to store personal belongings. When a belt with the case is put on the user, it offers immediate convenience to carry personal belongings. Besides, the first shell can also be combined with a storage case that is made of the third shell and the fourth shell, or various kinds of tools and equipment. This further provides mobility, convenience, usability and safety.

Abstract: The present invention is related to a credit card storing metal case, especially a portable device that provides storage of personal belongings, immediate access, convenience and security. The metal case, depending on practical needs, can be carried with personal accessories, like belts and backpacks, to possess great portability; or properly combined with indoor decorations and furniture, like sofas and chair armrests, to achieve a proper storage effect. Especially, the metal storing device is a grooved case with a case insert or a snap-lock mechanism comprising a notched base unit and a cover can provide space for the storage of carried personal belongings such as credit cards and business cards. Thus, the metal case provides great benefits because the user can have easy access to the stored object with great mobility, convenience and security.