Abstract: A method for providing home care service includes steps of: obtaining profile data including a plurality of available territorial regions that are associated with a number of service providers; receiving a request for the home care service; comparing a required location included in the request with the available territorial regions to determine whether any one of the available territorial regions conforms with the required location; outputting information of a matched service provider who has the available territorial region conforming with the required location; and upon receipt of an order to designate the matched service provider, notifying the matched service provider of an assignment.

Abstract: A method for managing a time-based currency includes steps of: receiving a credit-issuance request containing a user identifier and a value K; based on the credit-issuance request, generating a credit-issuance instruction containing the value K and a user account corresponding to the user identifier; and sending the credit-issuance instruction to a blockchain system, in order for the blockchain system to generate a transaction record in the blockchain, the transaction record indicating that K number of time credits having a base time point corresponding to a time point when the transaction record is generated have been added to the user account.

Abstract: A method for providing home care service includes steps of: obtaining profile data including a plurality of available territorial regions that are associated with a number of service providers; receiving a request for the home care service; comparing a required location included in the request with the available territorial regions to determine whether any one of the available territorial regions conforms with the required location; outputting information of a matched service provider who has the available territorial region conforming with the required location; and upon receipt of an order to designate the matched service provider, notifying the matched service provider of an assignment.

Abstract: A semiconductor device includes a first passivation layer including a first passivation portion and a second passivation portion substantially diametrically opposite the first passivation portion. The semiconductor device includes a first corner of the first passivation portion separated a first distance from a second corner of the second passivation portion. A third corner of the first passivation portion is separated a second distance from a fourth corner of the second passivation portion.