摘要:
Methods for reducing wafer bow induced by an anti-reflective coating of a cap wafer are provided. The method may utilize a shadow mask having at least one opening therein that is positioned opposite recessed regions in a cap wafer. The method may further include depositing at least one layer of an anti-reflective coating material through the shadow mask onto a planar side of a cap wafer to provide a discontinuous coating on the planar side.
摘要:
A structure for detecting electromagnetic radiation having a predetermined wavelength. The structure includes a device wafer having a sensing element disposed on a predetermined region of a surface of the device wafer responsive to the electromagnetic radiation. A cover wafer is provided having a region thereof transparent to the electromagnetic radiation for passing the electromagnetic radiation through the transparent region onto a surface of the sensing element. A bond gap spacer structure is provided for supporting the surface of the sensing element from an opposing surface of the transparent region of the cover wafer a distance less than a fraction of the predetermined wavelength when. the cover wafer is bonded to the device wafer.
摘要:
A method of forming a wafer level packaged circuit device includes forming a device wafer, the device wafer including a first group of one or more material layers left remaining in a first region of a substrate of the device wafer; and forming a cap wafer configured to be attached to the device wafer, the cap wafer including a second group of one or more material layers left remaining in a second region of a substrate of the cap wafer; wherein a combined thickness of the first and second groups of one or more material layers defines an integrated bond gap control structure upon bonding of the device wafer and the cap wafer.
摘要:
A wafer level vacuum packaged (WLVP) device having a first substrate having an array of detectors and a second substrate bonded to the first substrate having a plurality of protrusions and a plurality of getter material members projecting outwardly from a sidewall of the protrusions members are disposed at oblique angles to the sidewalls and have ends extending into gaps between the protrusions. The device is formed by: forming protrusions into a surface of a substrate; and depositing getter material by physical vapor deposition from an evaporating source of the getter material at an oblique angle to the sidewalls, atoms of the getter material initially forming nucleation sites on the sidewalls with subsequent atoms attaching to the nucleation sites and shadowing area surrounding each nucleation site, the getter material thereby growing into structures towards the evaporating source.
摘要:
An electronic device and methods of manufacture thereof. One or more methods may include providing a lid wafer having a cavity and a surface surrounding the cavity and a device wafer having a detector device and a reference device. In certain examples, a solder barrier layer of titanium material may be deposited onto the surface of the lid wafer. The solder barrier layer of titanium material may further be activated to function as a getter. In various examples, the lid wafer and the device wafer may be bonded together using solder, and the solder barrier layer of titanium material may prevent the solder from contacting the surface of the lid wafer.
摘要:
A surface defined by a wafer level package (WLP) region and an external region, and A system and method for forming a wafer level package. In one example, a substrate used in the wafer level package includes a layer of getter material is disposed on at least a portion of the external region. According to one embodiment, the external region comprises a saw-to-reveal (STR) region of the wafer.
摘要:
A structure for detecting electromagnetic radiation having a predetermined wavelength. The structure includes a device wafer having a sensing element disposed on a predetermined region of a surface of the device wafer responsive to the electromagnetic radiation. A cover wafer is provided having a region thereof transparent to the electromagnetic radiation for passing the electromagnetic radiation through the transparent region onto a surface of the sensing element. A bond gap spacer structure is provided for supporting the surface of the sensing element from an opposing surface of the transparent region of the cover wafer a distance less than a fraction of the predetermined wavelength when the cover wafer is bonded to the device wafer.
摘要:
A getter structure and method wherein a layer of seed material is deposited on a predetermined region of a surface of a structure under conditions to form a plurality of nucleation sites on a surface of the structure. The nucleation sites have an average height over the surface area of the predetermined region of less than one molecule thick. Subsequently a getter material is deposited over the surface to form a plurality of getter material members projecting outwardly from the nucleation sites.
摘要:
An electronic device and methods of manufacture thereof. One or more methods may include providing a lid wafer having a cavity and a surface surrounding the cavity and a device wafer having a detector device and a reference device. In certain examples, a solder barrier layer of titanium material may be deposited onto the surface of the lid wafer. The solder barrier layer of titanium material may further be activated to function as a getter. In various examples, the lid wafer and the device wafer may be bonded together using solder, and the solder barrier layer of titanium material may prevent the solder from contacting the surface of the lid wafer.
摘要:
An electronic device and methods of manufacture thereof. One or more methods may include providing a lid wafer having a cavity and a surface surrounding the cavity and a device wafer having a detector device and a reference device. In certain examples, a solder barrier layer of titanium material may be deposited onto the surface of the lid wafer. The solder barrier layer of titanium material may further be activated to function as a getter. In various examples, the lid wafer and the device wafer may be bonded together using solder, and the solder barrier layer of titanium material may prevent the solder from contacting the surface of the lid wafer.